Changes for removing nsIRDFResource and nsIRDFNode in favor of nsISupports.

git-svn-id: svn://10.0.0.236/branches/NoRDFResources2_BRANCH@24442 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/content/xul/content/src/nsRDFDOMNodeList.cpp

@@ -0,0 +1,305 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+/*
+
+    Helper class to implement the nsIDOMNodeList interface.
+
+    XXX It's probably wrong in some sense, as it uses the "naked"
+    content interface to look for kids. (I assume in general this is
+    bad because there may be pseudo-elements created for presentation
+    that aren't visible to the DOM.)
+
+*/
+
+#include "nsDOMCID.h"
+#include "nsIDOMNode.h"
+#include "nsIDOMHTMLCollection.h"
+#include "nsIDOMScriptObjectFactory.h"
+#include "nsIScriptGlobalObject.h"
+#include "nsIServiceManager.h"
+#include "nsISupportsArray.h"
+#include "nsRDFDOMNodeList.h"
+
+////////////////////////////////////////////////////////////////////////
+// GUID definitions
+
+static NS_DEFINE_IID(kIDOMNodeIID,                NS_IDOMNODE_IID);
+static NS_DEFINE_IID(kIDOMNodeListIID,            NS_IDOMNODELIST_IID);
+static NS_DEFINE_IID(kIDOMScriptObjectFactoryIID, NS_IDOM_SCRIPT_OBJECT_FACTORY_IID);
+
+static NS_DEFINE_CID(kDOMScriptObjectFactoryCID,  NS_DOM_SCRIPT_OBJECT_FACTORY_CID);
+
+////////////////////////////////////////////////////////////////////////
+//
+
+class RDFHTMLCollectionImpl : public nsIDOMHTMLCollection
+{
+private:
+    nsRDFDOMNodeList* mOuter;
+
+public:
+    RDFHTMLCollectionImpl(nsRDFDOMNodeList* aOuter);
+    virtual ~RDFHTMLCollectionImpl();
+
+    // nsISupports interface
+    NS_IMETHOD_(nsrefcnt) AddRef(void);
+    NS_IMETHOD_(nsrefcnt) Release(void);
+    NS_IMETHOD QueryInterface(REFNSIID aIID, void** aResult);
+    
+    // nsIDOMHTMLCollection interface
+    NS_DECL_IDOMHTMLCOLLECTION
+};
+
+
+RDFHTMLCollectionImpl::RDFHTMLCollectionImpl(nsRDFDOMNodeList* aOuter)
+    : mOuter(aOuter)
+{
+}
+
+RDFHTMLCollectionImpl::~RDFHTMLCollectionImpl(void)
+{
+}
+
+NS_IMETHODIMP_(nsrefcnt)
+RDFHTMLCollectionImpl::AddRef(void)
+{
+    return mOuter->AddRef();
+}
+
+NS_IMETHODIMP_(nsrefcnt)
+RDFHTMLCollectionImpl::Release(void)
+{
+    return mOuter->Release();
+}
+
+NS_IMETHODIMP
+RDFHTMLCollectionImpl::QueryInterface(REFNSIID aIID, void** aResult)
+{
+    NS_PRECONDITION(aResult != nsnull, "null ptr");
+    if (! aResult)
+        return NS_ERROR_NULL_POINTER;
+
+    if (aIID.Equals(nsIDOMHTMLCollection::GetIID())) {
+        *aResult = NS_STATIC_CAST(nsIDOMHTMLCollection*, this);
+        NS_ADDREF(this);
+        return NS_OK;
+    }
+    else {
+        return mOuter->QueryInterface(aIID, aResult);
+    }
+}
+
+
+NS_IMETHODIMP
+RDFHTMLCollectionImpl::GetLength(PRUint32* aLength)
+{
+    return mOuter->GetLength(aLength);
+}
+
+
+NS_IMETHODIMP
+RDFHTMLCollectionImpl::Item(PRUint32 aIndex, nsIDOMNode** aReturn)
+{
+    return mOuter->Item(aIndex, aReturn);
+}
+
+
+NS_IMETHODIMP
+RDFHTMLCollectionImpl::NamedItem(const nsString& aName, nsIDOMNode** aReturn)
+{
+    NS_NOTYETIMPLEMENTED("write me!");
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+
+
+////////////////////////////////////////////////////////////////////////
+// ctors & dtors
+
+nsRDFDOMNodeList::nsRDFDOMNodeList(void)
+    : mInner(nsnull),
+      mElements(nsnull),
+      mScriptObject(nsnull)
+{
+    NS_INIT_REFCNT();
+}
+
+nsRDFDOMNodeList::~nsRDFDOMNodeList(void)
+{
+    NS_IF_RELEASE(mElements);
+    delete mInner;
+}
+
+nsresult
+nsRDFDOMNodeList::Create(nsRDFDOMNodeList** aResult)
+{
+    NS_PRECONDITION(aResult != nsnull, "null ptr");
+    if (! aResult)
+        return NS_ERROR_NULL_POINTER;
+
+    nsRDFDOMNodeList* list = new nsRDFDOMNodeList();
+    if (! list)
+        return NS_ERROR_OUT_OF_MEMORY;
+
+    nsresult rv;
+    if (NS_FAILED(rv = list->Init())) {
+        delete list;
+        return rv;
+    }
+
+    NS_ADDREF(list);
+    *aResult = list;
+    return NS_OK;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// nsISupports interface
+
+NS_IMPL_ADDREF(nsRDFDOMNodeList);
+NS_IMPL_RELEASE(nsRDFDOMNodeList);
+
+nsresult
+nsRDFDOMNodeList::QueryInterface(REFNSIID aIID, void** aResult)
+{
+static NS_DEFINE_IID(kISupportsIID,          NS_ISUPPORTS_IID);
+static NS_DEFINE_IID(kIScriptObjectOwnerIID, NS_ISCRIPTOBJECTOWNER_IID);
+
+    NS_PRECONDITION(aResult != nsnull, "null ptr");
+    if (! aResult)
+        return NS_ERROR_NULL_POINTER;
+
+    if (aIID.Equals(nsIDOMNodeList::GetIID()) ||
+        aIID.Equals(kISupportsIID)) {
+        *aResult = NS_STATIC_CAST(nsIDOMNodeList*, this);
+        NS_ADDREF(this);
+        return NS_OK;
+    }
+    else if (aIID.Equals(kIScriptObjectOwnerIID)) {
+        *aResult = NS_STATIC_CAST(nsIScriptObjectOwner*, this);
+        NS_ADDREF(this);
+        return NS_OK;
+    }
+    else if (aIID.Equals(nsIDOMHTMLCollection::GetIID())) {
+        // Aggregate this interface
+        if (! mInner) {
+            if (! (mInner = new RDFHTMLCollectionImpl(this)))
+                return NS_ERROR_OUT_OF_MEMORY;
+        }
+
+        return mInner->QueryInterface(aIID, aResult);
+    }
+    return NS_NOINTERFACE;
+}
+
+////////////////////////////////////////////////////////////////////////
+// nsIDOMNodeList interface
+
+NS_IMETHODIMP
+nsRDFDOMNodeList::GetLength(PRUint32* aLength)
+{
+    NS_ASSERTION(aLength != nsnull, "null ptr");
+    if (! aLength)
+        return NS_ERROR_NULL_POINTER;
+
+    *aLength = mElements->Count();
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsRDFDOMNodeList::Item(PRUint32 aIndex, nsIDOMNode** aReturn)
+{
+    NS_PRECONDITION(aReturn != nsnull, "null ptr");
+    if (! aReturn)
+        return NS_ERROR_NULL_POINTER;
+
+    NS_PRECONDITION(aIndex < (PRUint32) mElements->Count(), "invalid arg");
+    if (aIndex >= (PRUint32) mElements->Count())
+        return NS_ERROR_INVALID_ARG;
+
+    // Cast is okay because we're in a closed system.
+    *aReturn = (nsIDOMNode*) mElements->ElementAt(aIndex);
+    return NS_OK;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// nsIScriptObjectOwner interface
+
+NS_IMETHODIMP
+nsRDFDOMNodeList::GetScriptObject(nsIScriptContext *aContext, void** aScriptObject)
+{
+    nsresult rv = NS_OK;
+    nsIScriptGlobalObject* global = aContext->GetGlobalObject();
+
+    if (nsnull == mScriptObject) {
+        nsIDOMScriptObjectFactory *factory;
+    
+        if (NS_SUCCEEDED(rv = nsServiceManager::GetService(kDOMScriptObjectFactoryCID,
+                                                           kIDOMScriptObjectFactoryIID,
+                                                           (nsISupports **)&factory))) {
+            rv = factory->NewScriptHTMLCollection(aContext, 
+                                                  (nsISupports*)(nsIDOMNodeList*)this, 
+                                                  global, 
+                                                  (void**)&mScriptObject);
+
+            nsServiceManager::ReleaseService(kDOMScriptObjectFactoryCID, factory);
+        }
+    }
+    *aScriptObject = mScriptObject;
+
+    NS_RELEASE(global);
+    return rv;
+}
+
+NS_IMETHODIMP
+nsRDFDOMNodeList::SetScriptObject(void* aScriptObject)
+{
+    mScriptObject = aScriptObject;
+    return NS_OK;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+// Implementation methods
+
+nsresult
+nsRDFDOMNodeList::Init(void)
+{
+    nsresult rv;
+    if (NS_FAILED(rv = NS_NewISupportsArray(&mElements))) {
+        NS_ERROR("unable to create elements array");
+        return rv;
+    }
+
+    return NS_OK;
+}
+
+
+nsresult
+nsRDFDOMNodeList::AppendNode(nsIDOMNode* aNode)
+{
+    NS_PRECONDITION(aNode != nsnull, "null ptr");
+    if (! aNode)
+        return NS_ERROR_NULL_POINTER;
+
+    return mElements->AppendElement(aNode);
+}

mozilla/content/xul/content/src/nsRDFDOMNodeList.h

@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+#ifndef nsRDFDOMNodeList_h__
+#define nsRDFDOMNodeList_h__
+
+#include "nsIDOMNodeList.h"
+#include "nsIScriptObjectOwner.h"
+class nsIDOMNode;
+class nsISupportsArray;
+
+class nsRDFDOMNodeList : public nsIDOMNodeList,
+                         public nsIScriptObjectOwner
+{
+private:
+    nsISupports* mInner;
+    nsISupportsArray* mElements;
+    void* mScriptObject;
+
+    nsRDFDOMNodeList(void);
+    nsresult Init(void);
+
+public:
+    static nsresult Create(nsRDFDOMNodeList** aResult);
+    virtual ~nsRDFDOMNodeList(void);
+
+    // nsISupports interface
+    NS_DECL_ISUPPORTS
+
+    // nsIDOMNodeList interface
+    NS_DECL_IDOMNODELIST
+
+    // nsIScriptObjectOwner interface
+    NS_IMETHOD GetScriptObject(nsIScriptContext *aContext, void** aScriptObject);
+    NS_IMETHOD SetScriptObject(void* aScriptObject);
+
+    // Implementation methods
+    nsresult AppendNode(nsIDOMNode* aNode);
+};
+
+#endif // nsRDFDOMNodeList_h__
+

mozilla/content/xul/content/src/nsXULAttributes.cpp

@@ -0,0 +1,144 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+
+/*
+
+  A helper class used to implement attributes.
+
+*/
+
+#include "nsXULAttributes.h"
+#include "nsICSSParser.h"
+#include "nsIURL.h"
+
+const PRUnichar kNullCh = PRUnichar('\0');
+
+static void ParseClasses(const nsString& aClassString, nsClassList** aClassList)
+{
+  NS_ASSERTION(nsnull == *aClassList, "non null start list");
+
+  nsAutoString  classStr(aClassString);  // copy to work buffer
+  classStr.Append(kNullCh);  // put an extra null at the end
+
+  PRUnichar* start = (PRUnichar*)(const PRUnichar*)classStr;
+  PRUnichar* end   = start;
+
+  while (kNullCh != *start) {
+    while ((kNullCh != *start) && nsString::IsSpace(*start)) {  // skip leading space
+      start++;
+    }
+    end = start;
+
+    while ((kNullCh != *end) && (PR_FALSE == nsString::IsSpace(*end))) { // look for space or end
+      end++;
+    }
+    *end = kNullCh; // end string here
+
+    if (start < end) {
+      *aClassList = new nsClassList(NS_NewAtom(start));
+      aClassList = &((*aClassList)->mNext);
+    }
+
+    start = ++end;
+  }
+}
+
+nsresult 
+nsXULAttributes::GetClasses(nsVoidArray& aArray) const
+{
+  aArray.Clear();
+  const nsClassList* classList = mClassList;
+  while (nsnull != classList) {
+    aArray.AppendElement(classList->mAtom); // NOTE atom is not addrefed
+    classList = classList->mNext;
+  }
+  return NS_OK;
+}
+
+nsresult 
+nsXULAttributes::HasClass(nsIAtom* aClass) const
+{
+  const nsClassList* classList = mClassList;
+  while (nsnull != classList) {
+    if (classList->mAtom == aClass) {
+      return NS_OK;
+    }
+    classList = classList->mNext;
+  }
+  return NS_COMFALSE;
+}
+
+nsresult nsXULAttributes::UpdateClassList(const nsString& aValue)
+{
+  if (mClassList != nsnull)
+  {
+    delete mClassList;
+    mClassList = nsnull;
+  }
+
+  if (aValue != "")
+    ParseClasses(aValue, &mClassList);
+  
+  return NS_OK;
+}
+
+nsresult nsXULAttributes::UpdateStyleRule(nsIURL* aDocURL, const nsString& aValue)
+{
+    if (aValue == "")
+    {
+      // XXX: Removing the rule. Is this sufficient?
+      NS_IF_RELEASE(mStyleRule);
+      mStyleRule = nsnull;
+      return NS_OK;
+    }
+
+    nsICSSParser* css;
+    nsresult result = NS_NewCSSParser(&css);
+    if (NS_OK != result) {
+      return result;
+    }
+
+    nsIStyleRule* rule;
+    result = css->ParseDeclarations(aValue, aDocURL, rule);
+    //NS_IF_RELEASE(docURL);
+    
+    if ((NS_OK == result) && (nsnull != rule)) {
+      mStyleRule = rule; //Addrefed already during parse, so don't need to addref again.
+      //result = SetHTMLAttribute(aAttribute, nsHTMLValue(rule), aNotify);
+    }
+    //else {
+    //  result = SetHTMLAttribute(aAttribute, nsHTMLValue(aValue), aNotify);
+    //}
+    NS_RELEASE(css);
+    return NS_OK;
+}
+
+nsresult nsXULAttributes::GetInlineStyleRule(nsIStyleRule*& aRule)
+{
+  nsresult result = NS_ERROR_NULL_POINTER;
+  if (mStyleRule != nsnull)
+  {
+    aRule = mStyleRule;
+    NS_ADDREF(aRule);
+    result = NS_OK;
+  }
+
+  return result;
+}

mozilla/content/xul/content/src/nsXULAttributes.h

@@ -0,0 +1,128 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+
+/*
+
+  A helper class used to implement attributes.
+
+*/
+
+#ifndef nsXULAttributes_h__
+#define nsXULAttributes_h__
+
+#include "nsIStyleRule.h"
+#include "nsString.h"
+#include "nsIAtom.h"
+#include "nsVoidArray.h"
+
+class nsIURL;
+
+struct nsClassList {
+  nsClassList(nsIAtom* aAtom)
+    : mAtom(aAtom),
+      mNext(nsnull)
+  {
+  }
+  nsClassList(const nsClassList& aCopy)
+    : mAtom(aCopy.mAtom),
+      mNext(nsnull)
+  {
+    NS_ADDREF(mAtom);
+    if (nsnull != aCopy.mNext) {
+      mNext = new nsClassList(*(aCopy.mNext));
+    }
+  }
+  ~nsClassList(void)
+  {
+    NS_RELEASE(mAtom);
+    if (nsnull != mNext) {
+      delete mNext;
+    }
+  }
+
+  nsIAtom*      mAtom;
+  nsClassList*  mNext;
+};
+
+struct nsXULAttribute
+{
+    nsXULAttribute(PRInt32 aNameSpaceID, nsIAtom* aName, const nsString& aValue)
+    {
+      mNameSpaceID = aNameSpaceID;
+      NS_IF_ADDREF(aName);
+      mName = aName;
+      mValue = aValue;
+    }
+
+    ~nsXULAttribute()
+    {
+      NS_IF_RELEASE(mName);
+    }
+
+    PRInt32 mNameSpaceID;
+    nsIAtom* mName;
+    nsString mValue;
+};
+
+class nsXULAttributes
+{
+public:
+    nsXULAttributes()
+        : mClassList(nsnull), mStyleRule(nsnull)
+    {
+        mAttributes = new nsVoidArray();
+    }
+
+    ~nsXULAttributes(void)
+    {
+        if (nsnull != mAttributes) {
+          PRInt32 count = mAttributes->Count();
+          PRInt32 index;
+          for (index = 0; index < count; index++) {
+              nsXULAttribute* attr = (nsXULAttribute*)mAttributes->ElementAt(index);
+              delete attr;
+          }
+        }
+        delete mAttributes;
+    }
+
+    // VoidArray Helpers
+    PRInt32 Count() { return mAttributes->Count(); };
+    nsXULAttribute* ElementAt(PRInt32 i) { return (nsXULAttribute*)mAttributes->ElementAt(i); };
+    void AppendElement(nsXULAttribute* aElement) { mAttributes->AppendElement((void*)aElement); };
+    void RemoveElementAt(PRInt32 index) { mAttributes->RemoveElementAt(index); };
+
+    // Style Helpers
+    nsresult GetClasses(nsVoidArray& aArray) const;
+    nsresult HasClass(nsIAtom* aClass) const;
+
+    nsresult UpdateClassList(const nsString& aValue);
+    nsresult UpdateStyleRule(nsIURL* aDocURL, const nsString& aValue);
+    nsresult GetInlineStyleRule(nsIStyleRule*& aRule);
+
+public:
+    nsClassList* mClassList;
+    nsIStyleRule* mStyleRule;
+    nsVoidArray* mAttributes;
+};
+
+
+#endif // nsXULAttributes_h__
+

mozilla/content/xul/content/src/nsXULElement.h

@@ -0,0 +1,71 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+#ifndef nsXULElement_h__
+#define nsXULElement_h__
+
+#include "nsIDOMXULElement.h"
+class nsXULElement : public nsISupports
+{
+protected:
+    nsIDOMXULElement* mOuter;
+    nsXULElement(nsIDOMXULElement* aOuter) : mOuter(aOuter) {}
+    
+public:
+    virtual ~nsXULElement() {};
+
+    // nsISupports interface. Subclasses should use the
+    // NS_DECL/IMPL_ISUPPORTS_INHERITED macros to implement the
+    // nsISupports interface.
+    NS_IMETHOD_(nsrefcnt) AddRef() {
+        return mOuter->AddRef();
+    }
+
+    NS_IMETHOD_(nsrefcnt) Release() {
+        return mOuter->Release();
+    }
+
+    NS_IMETHOD QueryInterface(REFNSIID aIID, void** aResult) {
+        return mOuter->QueryInterface(aIID, aResult);
+    }
+};
+
+#define NS_IMPL_XULELEMENT_ISUPPORTS                            \
+    NS_IMETHOD_(nsrefcnt) AddRef() {                            \
+        return mOuter->AddRef();                                \
+    }                                                           \
+                                                                \
+    NS_IMETHOD_(nsrefcnt) Release() {                           \
+        return mOuter->Release();                               \
+    }                                                           \
+                                                                \
+    NS_IMETHOD QueryInterface(REFNSIID aIID, void** aResult) {  \
+        if (aIID.Equals(GetDOMIID())) {                         \
+            *aResult = this;                                    \
+            NS_ADDREF(this);                                    \
+            return NS_OK;                                       \
+        }                                                       \
+        else {                                                  \
+            return mOuter->QueryInterface(aIID, aResult);       \
+        }                                                       \
+    }
+
+
+
+#endif // nsXULElement_h__

mozilla/content/xul/content/src/nsXULTreeElement.cpp

@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+#include "nsCOMPtr.h"
+#include "nsIRDFCompositeDataSource.h"
+#include "nsIServiceManager.h"
+#include "nsRDFCID.h"
+#include "nsXULTreeElement.h"
+
+NS_IMPL_ISUPPORTS_INHERITED(nsXULTreeElement, nsXULElement, nsIDOMXULTreeElement);
+
+NS_IMETHODIMP
+nsXULTreeElement::GetDatabase(nsIRDFCompositeDataSource** aDatabase)
+{
+    NS_PRECONDITION(aDatabase != nsnull, "null ptr");
+    if (! aDatabase)
+        return NS_ERROR_NULL_POINTER;
+
+    NS_IF_ADDREF(mDatabase);
+    *aDatabase = mDatabase;
+    return NS_OK;
+}
+
+
+NS_IMETHODIMP
+nsXULTreeElement::SetDatabase(nsIRDFCompositeDataSource* aDatabase)
+{
+    // XXX maybe someday you'll be allowed to change it.
+    NS_PRECONDITION(mDatabase == nsnull, "already initialized");
+    if (mDatabase)
+        return NS_ERROR_ALREADY_INITIALIZED;
+
+    mDatabase = aDatabase;
+    NS_IF_ADDREF(aDatabase);
+
+    // XXX reconstruct the entire tree now!
+
+    return NS_OK;
+}

mozilla/content/xul/content/src/nsXULTreeElement.h

@@ -0,0 +1,60 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+#ifndef nsXULTreeElement_h__
+#define nsXULTreeElement_h__
+
+#include "nsXULElement.h"
+#include "nsIDOMXULTreeElement.h"
+#include "nsIRDFCompositeDataSource.h"
+
+class nsXULTreeElement : public nsXULElement,
+                         public nsIDOMXULTreeElement
+{
+private:
+    nsIRDFCompositeDataSource* mDatabase;
+
+public:
+    nsXULTreeElement(nsIDOMXULElement* aOuter)
+        : nsXULElement(aOuter),
+          mDatabase(nsnull)
+    {
+    }
+
+    NS_DECL_ISUPPORTS_INHERITED
+
+    // nsIDOMNode interface
+    NS_FORWARD_IDOMNODE(mOuter->);
+
+    // nsIDOMElement interface
+    NS_FORWARD_IDOMELEMENT(mOuter->);
+
+    // nsIDOMXULElement interface
+    NS_FORWARD_IDOMXULELEMENT(mOuter->);
+
+    // nsIDOMXULTreeElement interface
+    NS_DECL_IDOMXULTREEELEMENT
+
+    virtual const nsIID& GetDOMIID() {
+        return nsIDOMXULTreeElement::GetIID();
+    }
+};
+
+
+#endif // nsXULTreeElement_h__

mozilla/db/mdb/Makefile.in

@@ -0,0 +1,35 @@
+#!gmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH = ../../..
+topsrcdir	= @top_srcdir@
+VPATH		= @srcdir@
+srcdir		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+# no src yet, or tests or build
+DIRS = public
+
+ifdef ENABLE_TESTS
+# DIRS += tests
+endif
+
+include $(topsrcdir)/config/config.mk
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/db/mdb/makefile.win

@@ -0,0 +1,24 @@
+#!nmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH=..\..\..
+
+#tests src no tests or src yet
+
+DIRS=public 
+
+include <$(DEPTH)\config\rules.mak>

mozilla/db/mdb/public/Makefile.in

@@ -0,0 +1,32 @@
+#!gmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1999 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH = ../../../..
+topsrcdir	= @top_srcdir@
+VPATH		= @srcdir@
+srcdir		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+EXPORTS= \
+		mdb.h \
+		$(NULL)
+
+include $(topsrcdir)/config/config.mk
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/db/mdb/public/makefile.win

@@ -0,0 +1,32 @@
+#!nmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH=..\..\..\..
+
+IGNORE_MANIFEST=1
+
+IDLSRCS =							\
+			$(NULL)
+
+EXPORTS =	 						\
+			mdb.h    \
+			$(NULL)
+
+MODULE=mailnews
+
+
+include <$(DEPTH)\config\rules.mak>

mozilla/db/mork/Makefile.in

@@ -0,0 +1,30 @@
+#!gmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH = ../../..
+topsrcdir	= @top_srcdir@
+VPATH		= @srcdir@
+srcdir		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+DIRS = src # tests public 
+
+include $(topsrcdir)/config/config.mk
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/db/mork/makefile.win

@@ -0,0 +1,24 @@
+#!nmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH=..\..\..
+
+#tests no tests yet or public yet
+
+DIRS=src 
+
+include <$(DEPTH)\config\rules.mak>

mozilla/db/mork/src/Makefile.in

@@ -0,0 +1,86 @@
+#!gmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH = ../../../..
+topsrcdir	= @top_srcdir@
+VPATH		= @srcdir@
+srcdir		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MODULE = mailnews
+LIBRARY_NAME=mork
+
+EXPORTS = \
+	$(NULL)
+
+CPPSRCS = \
+	orkinCell.cpp\
+	orkinEnv.cpp\
+	orkinFactory.cpp\
+	orkinHeap.cpp\
+	orkinPortTableCursor.cpp\
+	orkinRow.cpp\
+	orkinRowCellCursor.cpp\
+	orkinStore.cpp\
+	orkinTable.cpp\
+	orkinTableRowCursor.cpp\
+	orkinThumb.cpp\
+	morkArray.cpp\
+	morkAtom.cpp\
+	morkAtomMap.cpp\
+	morkAtomSpace.cpp\
+	morkBlob.cpp\
+	morkBuilder.cpp\
+	morkCell.cpp\
+	morkCellObject.cpp\
+	morkConfig.cpp\
+	morkCursor.cpp \
+	morkDeque.cpp\
+	morkEnv.cpp\
+	morkFactory.cpp\
+	morkFile.cpp\
+	morkHandle.cpp\
+	morkIntMap.cpp\
+	morkMap.cpp\
+	morkNode.cpp\
+	morkNodeMap.cpp\
+	morkObject.cpp\
+	morkParser.cpp\
+	morkPool.cpp\
+	morkRow.cpp\
+	morkRowCellCursor.cpp\
+	morkRowMap.cpp\
+	morkRowObject.cpp\
+	morkRowSpace.cpp\
+	morkSink.cpp\
+	morkSpace.cpp\
+	morkStore.cpp\
+	morkStream.cpp\
+	morkTable.cpp\
+	morkPortTableCursor.cpp\
+	morkTableRowCursor.cpp\
+	morkThumb.cpp\
+	morkWriter.cpp\
+	morkYarn.cpp\
+	$(NULL)
+
+
+include $(topsrcdir)/config/config.mk
+
+include $(topsrcdir)/config/rules.mk
+

mozilla/db/mork/src/makefile.win

@@ -0,0 +1,148 @@
+#!nmake
+#
+# The contents of this file are subject to the Netscape Public License
+# Version 1.0 (the "NPL"); you may not use this file except in
+# compliance with the NPL.  You may obtain a copy of the NPL at
+# http://www.mozilla.org/NPL/
+#
+# Software distributed under the NPL is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+# for the specific language governing rights and limitations under the
+# NPL.
+#
+# The Initial Developer of this code under the NPL is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+# Reserved.
+
+DEPTH=..\..\..\..
+IGNORE_MANIFEST=1
+
+LINCS= -I$(PUBLIC)\xpcom -I$(PUBLIC)\mailnews
+
+include <$(DEPTH)\config\config.mak>
+
+LIBRARY_NAME=mork
+MODULE= mailnews
+REQUIRES=rdf
+
+DEFINES=-D_IMPL_NS_HTML -DWIN32_LEAN_AND_MEAN
+
+CPPSRCS=    orkinCell.cpp\
+			orkinEnv.cpp\
+			orkinFactory.cpp\
+			orkinHeap.cpp\
+			orkinPortTableCursor.cpp\
+			orkinRow.cpp\
+			orkinRowCellCursor.cpp\
+			orkinStore.cpp\
+			orkinTable.cpp\
+			orkinTableRowCursor.cpp\
+			orkinThumb.cpp\
+			morkArray.cpp\
+			morkAtom.cpp\
+			morkAtomMap.cpp\
+			morkAtomSpace.cpp\
+			morkBlob.cpp\
+			morkBuilder.cpp\
+			morkCell.cpp\
+			morkCellObject.cpp\
+			morkConfig.cpp\
+			morkCursor.cpp \
+			morkDeque.cpp\
+			morkEnv.cpp\
+			morkFactory.cpp\
+			morkFile.cpp\
+			morkHandle.cpp\
+			morkIntMap.cpp\
+			morkMap.cpp\
+			morkNode.cpp\
+			morkNodeMap.cpp\
+			morkObject.cpp\
+			morkParser.cpp\
+			morkPool.cpp\
+			morkRow.cpp\
+			morkRowCellCursor.cpp\
+			morkRowMap.cpp\
+			morkRowObject.cpp\
+			morkRowSpace.cpp\
+			morkSink.cpp\
+			morkSpace.cpp\
+			morkStore.cpp\
+			morkStream.cpp\
+			morkTable.cpp\
+			morkPortTableCursor.cpp\
+			morkTableRowCursor.cpp\
+			morkThumb.cpp\
+			morkWriter.cpp\
+			morkYarn.cpp\
+			$(NULL)
+
+CPP_OBJS=   .\$(OBJDIR)\orkinCell.obj\
+			.\$(OBJDIR)\orkinEnv.obj\
+			.\$(OBJDIR)\orkinFactory.obj\
+			.\$(OBJDIR)\orkinHeap.obj\
+			.\$(OBJDIR)\orkinPortTableCursor.obj\
+			.\$(OBJDIR)\orkinRow.obj\
+			.\$(OBJDIR)\orkinRowCellCursor.obj\
+			.\$(OBJDIR)\orkinStore.obj\
+			.\$(OBJDIR)\orkinTable.obj\
+			.\$(OBJDIR)\orkinTableRowCursor.obj\
+			.\$(OBJDIR)\orkinThumb.obj\
+			.\$(OBJDIR)\morkArray.obj  \
+			.\$(OBJDIR)\morkAtom.obj  \
+			.\$(OBJDIR)\morkAtomMap.obj  \
+			.\$(OBJDIR)\morkAtomSpace.obj  \
+			.\$(OBJDIR)\morkBlob.obj\
+			.\$(OBJDIR)\morkBuilder.obj\
+			.\$(OBJDIR)\morkCell.obj\
+			.\$(OBJDIR)\morkCellObject.obj\
+			.\$(OBJDIR)\morkConfig.obj\
+			.\$(OBJDIR)\morkCursor.obj\
+			.\$(OBJDIR)\morkDeque.obj\
+			.\$(OBJDIR)\morkEnv.obj\
+			.\$(OBJDIR)\morkFactory.obj\
+			.\$(OBJDIR)\morkFile.obj\
+			.\$(OBJDIR)\morkHandle.obj\
+			.\$(OBJDIR)\morkIntMap.obj\
+			.\$(OBJDIR)\morkMap.obj\
+			.\$(OBJDIR)\morkNode.obj\
+			.\$(OBJDIR)\morkNodeMap.obj\
+			.\$(OBJDIR)\morkObject.obj\
+			.\$(OBJDIR)\morkParser.obj\
+			.\$(OBJDIR)\morkPool.obj\
+			.\$(OBJDIR)\morkPortTableCursor.obj\
+			.\$(OBJDIR)\morkRow.obj\
+			.\$(OBJDIR)\morkRowCellCursor.obj\
+			.\$(OBJDIR)\morkRowMap.obj\
+			.\$(OBJDIR)\morkRowObject.obj\
+			.\$(OBJDIR)\morkRowSpace.obj\
+			.\$(OBJDIR)\morkSink.obj\
+			.\$(OBJDIR)\morkSpace.obj\
+			.\$(OBJDIR)\morkStore.obj\
+			.\$(OBJDIR)\morkStream.obj\
+			.\$(OBJDIR)\morkTable.obj\
+			.\$(OBJDIR)\morkTableRowCursor.obj\
+			.\$(OBJDIR)\morkThumb.obj\
+			.\$(OBJDIR)\morkWriter.obj\
+			.\$(OBJDIR)\morkYarn.obj\
+			$(NULL)
+
+
+EXPORTS=	\
+			$(NULL)
+
+
+
+LCFLAGS = \
+        $(LCFLAGS) \
+        $(DEFINES) \
+        $(NULL)
+
+include <$(DEPTH)\config\rules.mak>
+
+libs:: $(LIBRARY)
+	$(MAKE_INSTALL) $(LIBRARY) $(DIST)\lib
+
+clobber::
+	rm -f $(DIST)\lib\$(LIBRARY_NAME).lib

mozilla/db/mork/src/mork.h

@@ -0,0 +1,193 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORK_
+#define _MORK_ 1
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+// { %%%%% begin disable unused param warnings %%%%%
+#define MORK_USED_1(x) (void)(&x)
+#define MORK_USED_2(x,y) (void)(&x,&y)
+#define MORK_USED_3(x,y,z) (void)(&x,&y,&z)
+#define MORK_USED_4(w,x,y,z) (void)(&w,&x,&y,&z)
+// } %%%%% end disable unused param warnings %%%%%
+
+// { %%%%% begin macro for finding class member offset %%%%%
+
+/*| OffsetOf: the unsigned integer offset of a class or struct
+**| field from the beginning of that class or struct.  This is
+**| the same as the similarly named public domain IronDoc macro,
+**| and is also the same as another macro appearing in stdlib.h.
+**| We want these offsets so we can correctly convert pointers
+**| to member slots back into pointers to enclosing objects, and
+**| have this exactly match what the compiler thinks is true.
+**|
+**|| Bascially we are asking the compiler to determine the offset at
+**| compile time, and we use the definition of address artithmetic
+**| to do this.  By casting integer zero to a pointer of type obj*,
+**| we can reference the address of a slot in such an object that
+**| is hypothetically physically placed at address zero, but without
+**| actually dereferencing a memory location.  The absolute address
+**| of slot is the same as offset of that slot, when the object is
+**| placed at address zero.
+|*/
+#define mork_OffsetOf(obj,slot) ((unsigned int)&((obj*) 0)->slot)
+
+// } %%%%% end macro for finding class member offset %%%%%
+
+// { %%%%% begin specific-size integer scalar typedefs %%%%%
+typedef unsigned char  mork_u1;  // make sure this is one byte
+typedef unsigned short mork_u2;  // make sure this is two bytes
+typedef short          mork_i2;  // make sure this is two bytes
+typedef unsigned long  mork_u4;  // make sure this is four bytes
+typedef long           mork_i4;  // make sure this is four bytes
+typedef long           mork_ip;  // make sure sizeof(mork_ip) == sizeof(void*)
+
+typedef mork_u2 mork_base;    // 2-byte magic class signature slot in object
+typedef mork_u2 mork_derived; // 2-byte magic class signature slot in object
+typedef mork_u2 mork_uses;    // 2-byte strong uses count
+typedef mork_u2 mork_refs;    // 2-byte actual reference count
+
+typedef mork_u4 mork_token;      // unsigned token for atomized string
+typedef mork_token mork_scope;   // token used to id scope for rows
+typedef mork_token mork_kind;    // token used to id kind for tables
+typedef mork_token mork_cscode;  // token used to id charset names
+typedef mork_token mork_aid;     // token used to id atomize cell values
+
+typedef mork_token mork_column;  // token used to id columns for rows
+typedef mork_column mork_delta;  // mork_column plus mork_change 
+
+typedef mork_u4 mork_magic;      // unsigned magic signature
+
+typedef mork_u4 mork_seed;       // unsigned collection change counter
+typedef mork_u4 mork_count;      // unsigned collection member count
+typedef mork_count mork_num;     // synonym for count
+typedef mork_u4 mork_size;       // unsigned physical media size
+typedef mork_u4 mork_fill;       // unsigned logical content size
+typedef mork_u4 mork_more;       // more available bytes for larger buffer
+
+typedef mork_i4 mork_pos; // negative means "before first" (at zero pos)
+typedef mork_i4 mork_line; // negative means "before first line in file"
+
+typedef mork_u1 mork_usage;   // 1-byte magic usage signature slot in object
+typedef mork_u1 mork_access;  // 1-byte magic access signature slot in object
+
+typedef mork_u1 mork_change; // add, cut, put, set, nil
+
+typedef mork_u1 mork_able; // on, off, asleep (clone IronDoc's fe_able)
+typedef mork_u1 mork_load; // dirty or clean (clone IronDoc's fe_load)
+// } %%%%% end specific-size integer scalar typedefs %%%%%
+
+// { %%%%% begin constants for Mork scalar types %%%%%
+#define morkAble_kEnabled  ((mork_able) 0x55) /* same as IronDoc constant */
+#define morkAble_kDisabled ((mork_able) 0xAA) /* same as IronDoc constant */
+#define morkAble_kAsleep   ((mork_able) 0x5A) /* same as IronDoc constant */
+
+#define morkChange_kAdd 'a' /* add member */
+#define morkChange_kCut 'c' /* cut member */
+#define morkChange_kPut 'p' /* put member */
+#define morkChange_kSet 's' /* set all members */
+#define morkChange_kNil 0   /* no change in this member */
+
+#define morkLoad_kDirty ((mork_load) 0xDD) /* same as IronDoc constant */
+#define morkLoad_kClean ((mork_load) 0x22) /* same as IronDoc constant */
+
+#define morkAccess_kOpen    'o'
+#define morkAccess_kClosing 'c'
+#define morkAccess_kShut    's'
+#define morkAccess_kDead    'd'
+// } %%%%% end constants for Mork scalar types %%%%%
+
+// { %%%%% begin non-specific-size integer scalar typedefs %%%%%
+typedef int mork_char; // nominal type for ints used to hold input byte
+#define morkChar_IsWhite(c) \
+  ((c) == 0xA || (c) == 0x9 || (c) == 0xD || (c) == ' ')
+// } %%%%% end non-specific-size integer scalar typedefs %%%%%
+
+// { %%%%% begin mdb-driven scalar typedefs %%%%%
+// easier to define bool exactly the same as mdb:
+typedef mdb_bool mork_bool; // unsigned byte with zero=false, nonzero=true
+
+/* canonical boolean constants provided only for code clarity: */
+#define morkBool_kTrue  ((mork_bool) 1) /* actually any nonzero means true */
+#define morkBool_kFalse ((mork_bool) 0) /* only zero means false */
+
+// mdb clients can assign these, so we cannot pick maximum size:
+typedef mdb_id mork_id;    // unsigned object identity in a scope
+typedef mork_id mork_rid;  // unsigned row identity inside scope
+typedef mork_id mork_tid;  // unsigned table identity inside scope
+typedef mork_id mork_gid;  // unsigned group identity without any scope
+
+// we only care about neg, zero, pos -- so we don't care about size:
+typedef mdb_order mork_order; // neg:lessthan, zero:equalto, pos:greaterthan 
+// } %%%%% end mdb-driven scalar typedefs %%%%%
+
+#define morkId_kMinusOne ((mdb_id) -1)
+
+// { %%%%% begin class forward defines %%%%%
+// try to put these in alphabetical order for easier examination:
+class morkAtom;
+class morkAtomSpace;
+class morkBookAtom;
+class morkBuf;
+class morkBuilder;
+class morkCell;
+class morkCellObject;
+class morkCursor;
+class morkEnv;
+class morkFactory;
+class morkFile;
+class morkHandle;
+class morkHandleFace; // just an opaque cookie type
+class morkHandleFrame;
+class morkHashArrays;
+class morkMap;
+class morkNode;
+class morkObject;
+class morkOidAtom;
+class morkParser;
+class morkPool;
+class morkPort;
+class morkPortTableCursor;
+class morkRow;
+class morkRowCellCursor;
+class morkRowObject;
+class morkRowSpace;
+class morkSpace;
+class morkStore;
+class morkStream;
+class morkTable;
+class morkTableRowCursor;
+class morkThumb;
+class morkWriter;
+// } %%%%% end class forward defines %%%%%
+
+// include this config file last for platform & environment specific stuff:
+#ifndef _MORKCONFIG_
+#include "morkConfig.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORK_ */

mozilla/db/mork/src/morkArray.cpp

@@ -0,0 +1,310 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKARRAY_
+#include "morkArray.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkArray::CloseMorkNode(morkEnv* ev) // CloseTable() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseArray(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkArray::~morkArray() // assert CloseTable() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+  MORK_ASSERT(mArray_Slots==0);
+}
+
+/*public non-poly*/
+morkArray::morkArray(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, mork_size inSize, nsIMdbHeap* ioSlotHeap)
+: morkNode(ev, inUsage, ioHeap)
+, mArray_Slots( 0 )
+, mArray_Heap( 0 )
+, mArray_Fill( 0 )
+, mArray_Size( 0 )
+, mArray_Seed( (mork_u4) this ) // "random" integer assignment
+{
+  if ( ev->Good() )
+  {
+    if ( ioSlotHeap )
+    {
+      nsIMdbHeap_SlotStrongHeap(ioSlotHeap, ev, &mArray_Heap);
+      if ( ev->Good() )
+      {
+        if ( inSize < 3 )
+          inSize = 3;
+        mdb_size byteSize = inSize * sizeof(void*);
+        void** block = 0;
+        ioSlotHeap->Alloc(ev->AsMdbEnv(), byteSize, (void**) &block);
+        if ( block && ev->Good() )
+        {
+          mArray_Slots = block;
+          mArray_Size = inSize;
+          MORK_MEMSET(mArray_Slots, 0, byteSize);
+          if ( ev->Good() )
+            mNode_Derived = morkDerived_kArray;
+        }
+      }
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkArray::CloseArray(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      if ( mArray_Heap && mArray_Slots )
+        mArray_Heap->Free(ev->AsMdbEnv(), mArray_Slots);
+        
+      mArray_Slots = 0;
+      mArray_Size = 0;
+      mArray_Fill = 0;
+      ++mArray_Seed;
+      nsIMdbHeap_SlotStrongHeap((nsIMdbHeap*) 0, ev, &mArray_Heap);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void
+morkArray::NonArrayTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkArray");
+}
+
+/*static*/ void
+morkArray::IndexBeyondEndError(morkEnv* ev)
+{
+  ev->NewError("array index beyond end");
+}
+
+/*static*/ void
+morkArray::NilSlotsAddressError(morkEnv* ev)
+{
+  ev->NewError("nil mArray_Slots");
+}
+
+/*static*/ void
+morkArray::FillBeyondSizeError(morkEnv* ev)
+{
+  ev->NewError("mArray_Fill > mArray_Size");
+}
+
+mork_bool
+morkArray::Grow(morkEnv* ev, mork_size inNewSize)
+// Grow() returns true if capacity becomes >= inNewSize and ev->Good()
+{
+  if ( ev->Good() && inNewSize > mArray_Size ) // make array larger?
+  {
+    if ( mArray_Fill <= mArray_Size ) // fill and size fit the invariant?
+    {
+      if ( inNewSize - mArray_Size < 3 ) // actually want a few more slots?
+        inNewSize = mArray_Size + 3;
+        
+      mdb_size newByteSize = inNewSize * sizeof(void*);
+      void** newBlock = 0;
+      mArray_Heap->Alloc(ev->AsMdbEnv(), newByteSize, (void**) &newBlock);
+      if ( newBlock && ev->Good() ) // okay new block?
+      {
+        void** oldSlots = mArray_Slots;
+        void** oldEnd = oldSlots + mArray_Fill;
+        
+        void** newSlots = newBlock;
+        void** newEnd = newBlock + inNewSize;
+        
+        while ( oldSlots < oldEnd )
+          *newSlots++ = *oldSlots++;
+          
+        while ( newSlots < newEnd )
+          *newSlots++ = (void*) 0;
+
+        oldSlots = mArray_Slots;
+        mArray_Size = inNewSize;
+        mArray_Slots = newBlock;
+        mArray_Heap->Free(ev->AsMdbEnv(), oldSlots);
+      }
+    }
+    else
+      this->FillBeyondSizeError(ev);
+  }
+  ++mArray_Seed; // always modify seed, since caller intends to add slots
+  return ( ev->Good() && mArray_Size >= inNewSize );
+}
+
+void*
+morkArray::SafeAt(morkEnv* ev, mork_pos inPos)
+{
+  if ( mArray_Slots )
+  {
+    if ( inPos < mArray_Fill )
+      return mArray_Slots[ inPos ];
+    else
+      this->IndexBeyondEndError(ev);
+  }
+  else
+    this->NilSlotsAddressError(ev);
+    
+  return (void*) 0;
+}
+
+void
+morkArray::SafeAtPut(morkEnv* ev, mork_pos inPos, void* ioSlot)
+{
+  if ( mArray_Slots )
+  {
+    if ( inPos < mArray_Fill )
+    {
+      mArray_Slots[ inPos ] = ioSlot;
+      ++mArray_Seed;
+    }
+    else
+      this->IndexBeyondEndError(ev);
+  }
+  else
+    this->NilSlotsAddressError(ev);
+}
+
+mork_pos
+morkArray::AppendSlot(morkEnv* ev, void* ioSlot)
+{
+  mork_pos outPos = -1;
+  if ( mArray_Slots )
+  {
+    mork_fill fill = mArray_Fill;
+    if ( this->Grow(ev, fill+1) )
+    {
+      outPos = fill;
+      mArray_Slots[ fill ] = ioSlot;
+      mArray_Fill = fill + 1;
+      // note Grow() increments mArray_Seed
+    }
+  }
+  else
+    this->NilSlotsAddressError(ev);
+    
+  return outPos;
+}
+
+void
+morkArray::AddSlot(morkEnv* ev, mork_pos inPos, void* ioSlot)
+{
+  if ( mArray_Slots )
+  {
+    mork_fill fill = mArray_Fill;
+    if ( this->Grow(ev, fill+1) )
+    {
+      void** slot = mArray_Slots; // the slot vector
+      void** end = slot + fill; // one past the last used array slot
+      slot += inPos; // the slot to be added
+
+      while ( --end >= slot ) // another slot to move upward?
+        end[ 1 ] = *end;
+
+      *slot = ioSlot;
+      mArray_Fill = fill + 1;
+      // note Grow() increments mArray_Seed
+    }
+  }
+  else
+    this->NilSlotsAddressError(ev);
+}
+
+void
+morkArray::CutSlot(morkEnv* ev, mork_pos inPos)
+{
+  mork_fill fill = mArray_Fill;
+  if ( inPos < fill ) // cutting a slot in the used array portion?
+  {
+    void** slot = mArray_Slots; // the slot vector
+    void** end = slot + fill; // one past the last used array slot
+    slot += inPos; // the slot to be cut
+    
+    while ( ++slot < end ) // another slot to move downward?
+      slot[ -1 ] = *slot;
+      
+    slot[ -1 ] = 0; // clear the last used slot which is now unused
+    
+    // note inPos<fill implies fill>0, so fill-1 must be nonnegative:
+    mArray_Fill = fill - 1;
+    ++mArray_Seed;
+  }
+}
+
+void
+morkArray::CutAllSlots(morkEnv* ev)
+{
+  if ( mArray_Slots )
+  {
+    if ( mArray_Fill <= mArray_Size )
+    {
+      mdb_size oldByteSize = mArray_Fill * sizeof(void*);
+      MORK_MEMSET(mArray_Slots, 0, oldByteSize);
+    }
+    else
+      this->FillBeyondSizeError(ev);
+  }
+  else
+    this->NilSlotsAddressError(ev);
+
+  ++mArray_Seed;
+  mArray_Fill = 0;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkArray.h

@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKARRAY_
+#define _MORKARRAY_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kArray  /*i*/ 0x4179 /* ascii 'Ay' */
+
+class morkArray : public morkNode { // row iterator
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*     mNode_Heap;
+  // mork_able    mNode_Mutable; // can this node be modified?
+  // mork_load    mNode_Load;    // is this node clean or dirty?
+  // mork_base    mNode_Base;    // must equal morkBase_kNode
+  // mork_derived mNode_Derived; // depends on specific node subclass
+  // mork_access  mNode_Access;  // kOpen, kClosing, kShut, or kDead
+  // mork_usage   mNode_Usage;   // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_uses    mNode_Uses;    // refcount for strong refs
+  // mork_refs    mNode_Refs;    // refcount for strong refs + weak refs
+
+public: // state is public because the entire Mork system is private
+  void**       mArray_Slots; // array of pointers
+  nsIMdbHeap*  mArray_Heap;  // required heap for allocating mArray_Slots
+  mork_fill    mArray_Fill;  // logical count of used slots in mArray_Slots
+  mork_size    mArray_Size;  // physical count of mArray_Slots ( >= Fill)
+  mork_seed    mArray_Seed;  // change counter for syncing with iterators
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseArray()
+  virtual ~morkArray(); // assert that close executed earlier
+  
+public: // morkArray construction & destruction
+  morkArray(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, mork_size inSize, nsIMdbHeap* ioSlotHeap);
+  void CloseArray(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkArray(const morkArray& other);
+  morkArray& operator=(const morkArray& other);
+
+public: // dynamic type identification
+  mork_bool IsArray() const
+  { return IsNode() && mNode_Derived == morkDerived_kArray; }
+// } ===== end morkNode methods =====
+
+public: // typing & errors
+  static void NonArrayTypeError(morkEnv* ev);
+  static void IndexBeyondEndError(morkEnv* ev);
+  static void NilSlotsAddressError(morkEnv* ev);
+  static void FillBeyondSizeError(morkEnv* ev);
+
+public: // other table row cursor methods
+
+  mork_fill  Length() const { return mArray_Fill; }
+  mork_size  Capacity() const { return mArray_Size; }
+  
+  mork_bool  Grow(morkEnv* ev, mork_size inNewSize);
+  // Grow() returns true if capacity becomes >= inNewSize and ev->Good()
+  
+  void*      At(mork_pos inPos) const { return mArray_Slots[ inPos ]; }
+  void       AtPut(mork_pos inPos, void* ioSlot)
+  { mArray_Slots[ inPos ] = ioSlot; }
+  
+  void*      SafeAt(morkEnv* ev, mork_pos inPos);
+  void       SafeAtPut(morkEnv* ev, mork_pos inPos, void* ioSlot);
+  
+  mork_pos   AppendSlot(morkEnv* ev, void* ioSlot);
+  void       AddSlot(morkEnv* ev, mork_pos inPos, void* ioSlot);
+  void       CutSlot(morkEnv* ev, mork_pos inPos);
+  void       CutAllSlots(morkEnv* ev);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakArray(morkArray* me,
+    morkEnv* ev, morkArray** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongArray(morkArray* me,
+    morkEnv* ev, morkArray** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKTABLEROWCURSOR_ */

mozilla/db/mork/src/morkAtom.cpp

@@ -0,0 +1,504 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKBLOB_
+#include "morkBlob.h"
+#endif
+
+#ifndef _MORKATOM_
+#include "morkAtom.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKATOMSPACE_
+#include "morkAtomSpace.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+mork_bool
+morkAtom::GetYarn(mdbYarn* outYarn) const
+{
+  const void* source = 0;  
+  mdb_fill fill = 0; 
+  mdb_cscode form = 0;
+  outYarn->mYarn_More = 0;
+
+  if ( this )
+  {
+    if ( this->IsWeeBook() )
+    {
+      morkWeeBookAtom* weeBook = (morkWeeBookAtom*) this;
+      source = weeBook->mWeeBookAtom_Body;
+      fill = weeBook->mAtom_Size;
+    }
+    else if ( this->IsBigBook() )
+    {
+      morkBigBookAtom* bigBook = (morkBigBookAtom*) this;
+      source = bigBook->mBigBookAtom_Body;
+      fill = bigBook->mBigBookAtom_Size;
+      form = bigBook->mBigBookAtom_Form;
+    }
+    else if ( this->IsWeeAnon() )
+    {
+      morkWeeAnonAtom* weeAnon = (morkWeeAnonAtom*) this;
+      source = weeAnon->mWeeAnonAtom_Body;
+      fill = weeAnon->mAtom_Size;
+    }
+    else if ( this->IsBigAnon() )
+    {
+      morkBigAnonAtom* bigAnon = (morkBigAnonAtom*) this;
+      source = bigAnon->mBigAnonAtom_Body;
+      fill = bigAnon->mBigAnonAtom_Size;
+      form = bigAnon->mBigAnonAtom_Form;
+    }
+  }
+  if ( source && fill ) // have an atom with nonempty content?
+  {
+    // if we have too many bytes, and yarn seems growable:
+    if ( fill > outYarn->mYarn_Size && outYarn->mYarn_Grow ) // try grow?
+      (*outYarn->mYarn_Grow)(outYarn, (mdb_size) fill); // request bigger
+      
+    mdb_size size = outYarn->mYarn_Size; // max dest size
+    if ( fill > size ) // too much atom content?
+    {
+      outYarn->mYarn_More = size - fill; // extra atom bytes omitted
+      fill = size; // copy no more bytes than size of yarn buffer
+    }
+    void* dest = outYarn->mYarn_Buf; // where bytes are going
+    if ( !dest ) // nil destination address buffer?
+      fill = 0; // we can't write any content at all
+      
+    if ( fill ) // anything to copy?
+      MORK_MEMCPY(dest, source, fill); // copy fill bytes to yarn
+      
+    outYarn->mYarn_Fill = fill; // tell yarn size of copied content
+  }
+  else // no content to put into the yarn
+  {
+    outYarn->mYarn_Fill = 0; // tell yarn that atom has no bytes
+  }
+  outYarn->mYarn_Form = form; // always update the form slot
+  
+  return ( source != 0 );
+}
+
+mork_bool
+morkAtom::AsBuf(morkBuf& outBuf) const
+{
+  const morkAtom* atom = this;
+  if ( atom )
+  {
+    if ( atom->IsWeeBook() )
+    {
+      morkWeeBookAtom* weeBook = (morkWeeBookAtom*) atom;
+      outBuf.mBuf_Body = weeBook->mWeeBookAtom_Body;
+      outBuf.mBuf_Fill = weeBook->mAtom_Size;
+    }
+    else if ( atom->IsBigBook() )
+    {
+      morkBigBookAtom* bigBook = (morkBigBookAtom*) atom;
+      outBuf.mBuf_Body = bigBook->mBigBookAtom_Body;
+      outBuf.mBuf_Fill = bigBook->mBigBookAtom_Size;
+    }
+    else if ( atom->IsWeeAnon() )
+    {
+      morkWeeAnonAtom* weeAnon = (morkWeeAnonAtom*) atom;
+      outBuf.mBuf_Body = weeAnon->mWeeAnonAtom_Body;
+      outBuf.mBuf_Fill = weeAnon->mAtom_Size;
+    }
+    else if ( atom->IsBigAnon() )
+    {
+      morkBigAnonAtom* bigAnon = (morkBigAnonAtom*) atom;
+      outBuf.mBuf_Body = bigAnon->mBigAnonAtom_Body;
+      outBuf.mBuf_Fill = bigAnon->mBigAnonAtom_Size;
+    }
+    else
+      atom = 0; // show desire to put empty content in yarn
+  }
+  
+  if ( !atom ) // empty content for yarn?
+  {
+    outBuf.mBuf_Body = 0;
+    outBuf.mBuf_Fill = 0;
+  }
+  return ( atom != 0 );
+}
+
+mork_bool
+morkAtom::AliasYarn(mdbYarn* outYarn) const
+{
+  outYarn->mYarn_More = 0;
+  outYarn->mYarn_Form = 0;
+  const morkAtom* atom = this;
+  
+  if ( atom )
+  {
+    if ( atom->IsWeeBook() )
+    {
+      morkWeeBookAtom* weeBook = (morkWeeBookAtom*) atom;
+      outYarn->mYarn_Buf = weeBook->mWeeBookAtom_Body;
+      outYarn->mYarn_Fill = weeBook->mAtom_Size;
+      outYarn->mYarn_Size = weeBook->mAtom_Size;
+    }
+    else if ( atom->IsBigBook() )
+    {
+      morkBigBookAtom* bigBook = (morkBigBookAtom*) atom;
+      outYarn->mYarn_Buf = bigBook->mBigBookAtom_Body;
+      outYarn->mYarn_Fill = bigBook->mBigBookAtom_Size;
+      outYarn->mYarn_Size = bigBook->mBigBookAtom_Size;
+      outYarn->mYarn_Form = bigBook->mBigBookAtom_Form;
+    }
+    else if ( atom->IsWeeAnon() )
+    {
+      morkWeeAnonAtom* weeAnon = (morkWeeAnonAtom*) atom;
+      outYarn->mYarn_Buf = weeAnon->mWeeAnonAtom_Body;
+      outYarn->mYarn_Fill = weeAnon->mAtom_Size;
+      outYarn->mYarn_Size = weeAnon->mAtom_Size;
+    }
+    else if ( atom->IsBigAnon() )
+    {
+      morkBigAnonAtom* bigAnon = (morkBigAnonAtom*) atom;
+      outYarn->mYarn_Buf = bigAnon->mBigAnonAtom_Body;
+      outYarn->mYarn_Fill = bigAnon->mBigAnonAtom_Size;
+      outYarn->mYarn_Size = bigAnon->mBigAnonAtom_Size;
+      outYarn->mYarn_Form = bigAnon->mBigAnonAtom_Form;
+    }
+    else
+      atom = 0; // show desire to put empty content in yarn
+  }
+  
+  if ( !atom ) // empty content for yarn?
+  {
+    outYarn->mYarn_Buf = 0;
+    outYarn->mYarn_Fill = 0;
+    outYarn->mYarn_Size = 0;
+    // outYarn->mYarn_Grow = 0; // please don't modify the Grow slot
+  }
+  return ( atom != 0 );
+}
+
+void
+morkAtom::MakeCellUseForever(morkEnv* ev)
+{
+  mAtom_CellUses = morkAtom_kForeverCellUses;
+}
+
+mork_u1
+morkAtom::AddCellUse(morkEnv* ev)
+{
+  if ( mAtom_CellUses < morkAtom_kMaxCellUses ) // not already maxed out?
+    ++mAtom_CellUses;
+    
+  return mAtom_CellUses;
+}
+
+mork_u1
+morkAtom::CutCellUse(morkEnv* ev)
+{
+  if ( mAtom_CellUses ) // any outstanding uses to cut?
+  {
+    if ( mAtom_CellUses < morkAtom_kMaxCellUses ) // not frozen at max?
+      --mAtom_CellUses;
+  }
+  else
+    this->CellUsesUnderflowWarning(ev);
+    
+  return mAtom_CellUses;
+}
+
+/*static*/ void
+morkAtom::CellUsesUnderflowWarning(morkEnv* ev)
+{
+  ev->NewWarning("mAtom_CellUses underflow");
+}
+
+/*static*/ void
+morkAtom::BadAtomKindError(morkEnv* ev)
+{
+  ev->NewError("bad mAtom_Kind");
+}
+
+/*static*/ void
+morkAtom::ZeroAidError(morkEnv* ev)
+{
+  ev->NewError("zero atom ID");
+}
+
+/*static*/ void
+morkAtom::AtomSizeOverflowError(morkEnv* ev)
+{
+  ev->NewError("atom mAtom_Size overflow");
+}
+
+void
+morkOidAtom::InitRowOidAtom(morkEnv* ev, const mdbOid& inOid)
+{
+  mAtom_CellUses = 0;
+  mAtom_Kind = morkAtom_kKindRowOid;
+  mAtom_Change = morkChange_kNil;
+  mAtom_Size = 0;
+  mOidAtom_Oid = inOid; // bitwise copy
+}
+
+void
+morkOidAtom::InitTableOidAtom(morkEnv* ev, const mdbOid& inOid)
+{
+  mAtom_CellUses = 0;
+  mAtom_Kind = morkAtom_kKindTableOid;
+  mAtom_Change = morkChange_kNil;
+  mAtom_Size = 0;
+  mOidAtom_Oid = inOid; // bitwise copy
+}
+
+void
+morkWeeAnonAtom::InitWeeAnonAtom(morkEnv* ev, const morkBuf& inBuf)
+{
+  mAtom_Kind = 0;
+  mAtom_Change = morkChange_kNil;
+  if ( inBuf.mBuf_Fill <= morkAtom_kMaxByteSize )
+  {
+    mAtom_CellUses = 0;
+    mAtom_Kind = morkAtom_kKindWeeAnon;
+    mork_size size = inBuf.mBuf_Fill;
+    mAtom_Size = (mork_u1) size;
+    if ( size && inBuf.mBuf_Body )
+      MORK_MEMCPY(mWeeAnonAtom_Body, inBuf.mBuf_Body, size);
+        
+    mWeeAnonAtom_Body[ size ] = 0;
+  }
+  else
+    this->AtomSizeOverflowError(ev);
+}
+
+void
+morkBigAnonAtom::InitBigAnonAtom(morkEnv* ev, const morkBuf& inBuf,
+  mork_cscode inForm)
+{
+  mAtom_CellUses = 0;
+  mAtom_Kind = morkAtom_kKindBigAnon;
+  mAtom_Change = morkChange_kNil;
+  mAtom_Size = 0;
+  mBigAnonAtom_Form = inForm;
+  mork_size size = inBuf.mBuf_Fill;
+  mBigAnonAtom_Size = size;
+  if ( size && inBuf.mBuf_Body )
+    MORK_MEMCPY(mBigAnonAtom_Body, inBuf.mBuf_Body, size);
+        
+  mBigAnonAtom_Body[ size ] = 0;
+}
+
+/*static*/ void
+morkBookAtom::NonBookAtomTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkBookAtom");
+}
+
+mork_u4
+morkBookAtom::HashFormAndBody(morkEnv* ev) const
+{
+  // This hash is obviously a variation of the dragon book string hash.
+  // (I won't bother to explain or rationalize this usage for you.)
+  
+  register mork_u4 outHash = 0; // hash value returned
+  register unsigned char c; // next character
+  register const mork_u1* body; // body of bytes to hash
+  mork_size size = 0; // the number of bytes to hash
+
+  if ( this->IsWeeBook() )
+  {
+    size = mAtom_Size;
+    body = ((const morkWeeBookAtom*) this)->mWeeBookAtom_Body;
+  }
+  else if ( this->IsBigBook() )
+  {
+    size = ((const morkBigBookAtom*) this)->mBigBookAtom_Size;
+    body = ((const morkBigBookAtom*) this)->mBigBookAtom_Body;
+  }
+  else
+    this->NonBookAtomTypeError(ev);
+  
+  const mork_u1* end = body + size;
+  while ( body < end )
+  {
+    c = *body++;
+    outHash <<= 4;
+    outHash += c;
+    mork_u4 top = outHash & 0xF0000000L; // top four bits
+    if ( top ) // any of high four bits equal to one? 
+    {
+      outHash ^= (top >> 24); // fold down high bits
+      outHash ^= top; // zero top four bits
+    }
+  }
+    
+  return outHash;
+}
+
+mork_bool
+morkBookAtom::EqualFormAndBody(morkEnv* ev, const morkBookAtom* inAtom) const
+{
+  mork_bool outEqual = morkBool_kFalse;
+  
+  const mork_u1* body = 0; // body of inAtom bytes to compare
+  mork_size size; // the number of inAtom bytes to compare
+  mork_cscode form; // nominal charset for ioAtom
+
+  if ( inAtom->IsWeeBook() )
+  {
+    size = inAtom->mAtom_Size;
+    body = ((const morkWeeBookAtom*) inAtom)->mWeeBookAtom_Body;
+    form = 0;
+  }
+  else if ( inAtom->IsBigBook() )
+  {
+    size = ((const morkBigBookAtom*) inAtom)->mBigBookAtom_Size;
+    body = ((const morkBigBookAtom*) inAtom)->mBigBookAtom_Body;
+    form = ((const morkBigBookAtom*) inAtom)->mBigBookAtom_Form;
+  }
+  else
+    inAtom->NonBookAtomTypeError(ev);
+
+  const mork_u1* thisBody = 0; // body of bytes in this to compare
+  mork_size thisSize; // the number of bytes in this to compare
+  mork_cscode thisForm; // nominal charset for this atom
+  
+  if ( this->IsWeeBook() )
+  {
+    thisSize = mAtom_Size;
+    thisBody = ((const morkWeeBookAtom*) this)->mWeeBookAtom_Body;
+    thisForm = 0;
+  }
+  else if ( this->IsBigBook() )
+  {
+    thisSize = ((const morkBigBookAtom*) this)->mBigBookAtom_Size;
+    thisBody = ((const morkBigBookAtom*) this)->mBigBookAtom_Body;
+    thisForm = ((const morkBigBookAtom*) this)->mBigBookAtom_Form;
+  }
+  else
+    this->NonBookAtomTypeError(ev);
+  
+  if ( body && thisBody && size == thisSize && form == thisForm )
+    outEqual = (MORK_MEMCMP(body, thisBody, size) == 0);
+  
+  return outEqual;
+}
+
+
+void
+morkBookAtom::CutBookAtomFromSpace(morkEnv* ev)
+{
+  morkAtomSpace* space = mBookAtom_Space;
+  if ( space )
+  {
+    mBookAtom_Space = 0;
+    space->mAtomSpace_AtomBodies.CutAtom(ev, this);
+    space->mAtomSpace_AtomAids.CutAtom(ev, this);
+  }
+  else
+    ev->NilPointerError();
+}
+
+morkWeeBookAtom::morkWeeBookAtom(mork_aid inAid)
+{
+  mAtom_Kind = morkAtom_kKindWeeBook;
+  mAtom_CellUses = 0;
+  mAtom_Change = morkChange_kNil;
+  mAtom_Size = 0;
+
+  mBookAtom_Space = 0;
+  mBookAtom_Id = inAid;
+
+  mWeeBookAtom_Body[ 0 ] = 0;
+}
+
+void
+morkWeeBookAtom::InitWeeBookAtom(morkEnv* ev, const morkBuf& inBuf,
+  morkAtomSpace* ioSpace, mork_aid inAid)
+{
+  mAtom_Kind = 0;
+  mAtom_Change = morkChange_kNil;
+  if ( ioSpace )
+  {
+    if ( inAid )
+    {
+      if ( inBuf.mBuf_Fill <= morkAtom_kMaxByteSize )
+      {
+        mAtom_CellUses = 0;
+        mAtom_Kind = morkAtom_kKindWeeBook;
+        mBookAtom_Space = ioSpace;
+        mBookAtom_Id = inAid;
+        mork_size size = inBuf.mBuf_Fill;
+        mAtom_Size = (mork_u1) size;
+        if ( size && inBuf.mBuf_Body )
+          MORK_MEMCPY(mWeeBookAtom_Body, inBuf.mBuf_Body, size);
+        
+        mWeeBookAtom_Body[ size ] = 0;
+      }
+      else
+        this->AtomSizeOverflowError(ev);
+    }
+    else
+      this->ZeroAidError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+void
+morkBigBookAtom::InitBigBookAtom(morkEnv* ev, const morkBuf& inBuf,
+  mork_cscode inForm, morkAtomSpace* ioSpace, mork_aid inAid)
+{
+  mAtom_Kind = 0;
+  mAtom_Change = morkChange_kNil;
+  if ( ioSpace )
+  {
+    if ( inAid )
+    {
+      mAtom_CellUses = 0;
+      mAtom_Kind = morkAtom_kKindBigBook;
+      mAtom_Size = 0;
+      mBookAtom_Space = ioSpace;
+      mBookAtom_Id = inAid;
+      mBigBookAtom_Form = inForm;
+      mork_size size = inBuf.mBuf_Fill;
+      mBigBookAtom_Size = size;
+      if ( size && inBuf.mBuf_Body )
+        MORK_MEMCPY(mBigBookAtom_Body, inBuf.mBuf_Body, size);
+        
+      mBigBookAtom_Body[ size ] = 0;
+    }
+    else
+      this->ZeroAidError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkAtom.h

@@ -0,0 +1,323 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKATOM_
+#define _MORKATOM_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+#define morkAtom_kMaxByteSize 255 /* max for 8-bit integer */
+#define morkAtom_kForeverCellUses 0x0FF /* max for 8-bit integer */
+#define morkAtom_kMaxCellUses 0x07F /* max for 7-bit integer */
+
+#define morkAtom_kKindWeeAnon  'a'  /* means morkWeeAnonAtom subclass */
+#define morkAtom_kKindBigAnon  'A'  /* means morkBigAnonAtom subclass */
+#define morkAtom_kKindWeeBook  'b'  /* means morkWeeBookAtom subclass */
+#define morkAtom_kKindBigBook  'B'  /* means morkBigBookAtom subclass */
+#define morkAtom_kKindRowOid   'r'  /* means morkOidAtom subclass */
+#define morkAtom_kKindTableOid 't'  /* means morkOidAtom subclass */
+
+/*| Atom: .
+|*/
+class morkAtom { //
+ 
+public: 
+
+  mork_u1       mAtom_Kind;      // identifies a specific atom subclass
+  mork_u1       mAtom_CellUses;  // number of persistent uses in a cell
+  mork_change   mAtom_Change;    // how has this atom been changed?
+  mork_u1       mAtom_Size;      // only for atoms smaller than 256 bytes
+
+public: 
+  morkAtom(mork_aid inAid, mork_u1 inKind);
+  
+  mork_bool IsWeeAnon() const { return mAtom_Kind == morkAtom_kKindWeeAnon; }
+  mork_bool IsBigAnon() const { return mAtom_Kind == morkAtom_kKindBigAnon; }
+  mork_bool IsWeeBook() const { return mAtom_Kind == morkAtom_kKindWeeBook; }
+  mork_bool IsBigBook() const { return mAtom_Kind == morkAtom_kKindBigBook; }
+  mork_bool IsRowOid() const { return mAtom_Kind == morkAtom_kKindRowOid; }
+  mork_bool IsTableOid() const { return mAtom_Kind == morkAtom_kKindTableOid; }
+
+  mork_bool IsBook() const { return this->IsWeeBook() || this->IsBigBook(); }
+
+public: // empty construction does nothing
+  morkAtom() { }
+
+public: // one-byte refcounting, freezing at maximum
+  void       MakeCellUseForever(morkEnv* ev);
+  mork_u1    AddCellUse(morkEnv* ev);
+  mork_u1    CutCellUse(morkEnv* ev);
+  
+  mork_bool  IsCellUseForever() const 
+  { return mAtom_CellUses == morkAtom_kForeverCellUses; }
+  
+  void       SetAtomDirty() { mAtom_Change = morkChange_kAdd; }
+
+private: // warnings
+
+  static void CellUsesUnderflowWarning(morkEnv* ev);
+
+public: // errors
+
+  static void BadAtomKindError(morkEnv* ev);
+  static void ZeroAidError(morkEnv* ev);
+  static void AtomSizeOverflowError(morkEnv* ev);
+
+public: // yarns
+  
+  mork_bool   AsBuf(morkBuf& outBuf) const;
+  mork_bool   AliasYarn(mdbYarn* outYarn) const;
+  mork_bool   GetYarn(mdbYarn* outYarn) const;
+
+private: // copying is not allowed
+  morkAtom(const morkAtom& other);
+  morkAtom& operator=(const morkAtom& other);
+};
+
+/*| OidAtom: an atom that references a row or table by identity.
+|*/
+class morkOidAtom : public morkAtom { //
+
+  // mork_u1       mAtom_Kind;      // identifies a specific atom subclass
+  // mork_u1       mAtom_CellUses;  // number of persistent uses in a cell
+  // mork_change   mAtom_Change;    // how has this atom been changed?
+  // mork_u1       mAtom_Size;      // NOT USED IN "BIG" format atoms
+ 
+public:
+  mdbOid           mOidAtom_Oid;       // identity of referenced object
+
+public: // empty construction does nothing
+  morkOidAtom() { }
+  void InitRowOidAtom(morkEnv* ev, const mdbOid& inOid);
+  void InitTableOidAtom(morkEnv* ev, const mdbOid& inOid);
+
+private: // copying is not allowed
+  morkOidAtom(const morkOidAtom& other);
+  morkOidAtom& operator=(const morkOidAtom& other);
+};
+
+/*| WeeAnonAtom: an atom whose content immediately follows morkAtom slots
+**| in an inline fashion, so that morkWeeAnonAtom contains both leading
+**| atom slots and then the content bytes without further overhead.  Note
+**| that charset encoding is not indicated, so zero is implied for Latin1.
+**| (Non-Latin1 content must be stored in a morkBigAnonAtom with a charset.)
+**|
+**|| An anon (anonymous) atom has no identity, with no associated bookkeeping
+**| for lookup needed for sharing like a book atom.
+**|
+**|| A wee anon atom is immediate but not shared with any other users of this
+**| atom, so no bookkeeping for sharing is needed.  This means the atom has
+**| no ID, because the atom has no identity other than this immediate content,
+**| and no hash table is needed to look up this particular atom.  This also
+**| applies to the larger format morkBigAnonAtom, which has more slots.
+|*/
+class morkWeeAnonAtom : public morkAtom { //
+
+  // mork_u1       mAtom_Kind;      // identifies a specific atom subclass
+  // mork_u1       mAtom_CellUses;  // number of persistent uses in a cell
+  // mork_change   mAtom_Change;    // how has this atom been changed?
+  // mork_u1       mAtom_Size;      // only for atoms smaller than 256 bytes
+  
+public:
+  mork_u1 mWeeAnonAtom_Body[ 1 ]; // 1st byte of immediate content vector
+
+public: // empty construction does nothing
+  morkWeeAnonAtom() { }
+  void InitWeeAnonAtom(morkEnv* ev, const morkBuf& inBuf);
+  
+  // allow extra trailing byte for a null byte:
+  static mork_size SizeForFill(mork_fill inFill)
+  { return sizeof(morkWeeAnonAtom) + inFill; }
+
+private: // copying is not allowed
+  morkWeeAnonAtom(const morkWeeAnonAtom& other);
+  morkWeeAnonAtom& operator=(const morkWeeAnonAtom& other);
+};
+
+/*| BigAnonAtom: another immediate atom that cannot be encoded as the smaller
+**| morkWeeAnonAtom format because either the size is too great, and/or the
+**| charset is not the default zero for Latin1 and must be explicitly noted.
+**|
+**|| An anon (anonymous) atom has no identity, with no associated bookkeeping
+**| for lookup needed for sharing like a book atom.
+|*/
+class morkBigAnonAtom : public morkAtom { //
+
+  // mork_u1       mAtom_Kind;      // identifies a specific atom subclass
+  // mork_u1       mAtom_CellUses;  // number of persistent uses in a cell
+  // mork_change   mAtom_Change;    // how has this atom been changed?
+  // mork_u1       mAtom_Size;      // NOT USED IN "BIG" format atoms
+ 
+public:
+  mork_cscode   mBigAnonAtom_Form;      // charset format encoding
+  mork_size     mBigAnonAtom_Size;      // size of content vector
+  mork_u1       mBigAnonAtom_Body[ 1 ]; // 1st byte of immed content vector
+
+public: // empty construction does nothing
+  morkBigAnonAtom() { }
+  void InitBigAnonAtom(morkEnv* ev, const morkBuf& inBuf, mork_cscode inForm);
+  
+  // allow extra trailing byte for a null byte:
+  static mork_size SizeForFill(mork_fill inFill)
+  { return sizeof(morkBigAnonAtom) + inFill; }
+
+private: // copying is not allowed
+  morkBigAnonAtom(const morkBigAnonAtom& other);
+  morkBigAnonAtom& operator=(const morkBigAnonAtom& other);
+};
+
+#define morkBookAtom_kMaxBodySize 1024 /* if larger, cannot be shared */
+
+/*| BookAtom: the common subportion of wee book atoms and big book atoms that
+**| includes the atom ID and the pointer to the space referencing this atom
+**| through a hash table.
+|*/
+class morkBookAtom : public morkAtom { //
+  // mork_u1       mAtom_Kind;      // identifies a specific atom subclass
+  // mork_u1       mAtom_CellUses;  // number of persistent uses in a cell
+  // mork_change   mAtom_Change;    // how has this atom been changed?
+  // mork_u1       mAtom_Size;      // only for atoms smaller than 256 bytes
+  
+public:
+  morkAtomSpace* mBookAtom_Space; // mBookAtom_Space->mSpace_Scope is atom scope 
+  mork_aid       mBookAtom_Id;    // identity token for this shared atom
+
+public: // empty construction does nothing
+  morkBookAtom() { }
+
+  static void NonBookAtomTypeError(morkEnv* ev);
+
+public: // Hash() and Equal() for atom ID maps are same for all subclasses:
+
+  mork_u4 HashAid() const { return mBookAtom_Id; }
+  mork_bool EqualAid(const morkBookAtom* inAtom) const
+  { return ( mBookAtom_Id == inAtom->mBookAtom_Id); }
+
+public: // Hash() and Equal() for atom body maps know about subclasses:
+  
+  mork_u4 HashFormAndBody(morkEnv* ev) const;
+  mork_bool EqualFormAndBody(morkEnv* ev, const morkBookAtom* inAtom) const;
+
+public: // separation from containing space
+
+  void CutBookAtomFromSpace(morkEnv* ev);
+
+private: // copying is not allowed
+  morkBookAtom(const morkBookAtom& other);
+  morkBookAtom& operator=(const morkBookAtom& other);
+};
+
+/*| WeeBookAtom: .
+|*/
+class morkWeeBookAtom : public morkBookAtom { //
+  // mork_u1       mAtom_Kind;      // identifies a specific atom subclass
+  // mork_u1       mAtom_CellUses;  // number of persistent uses in a cell
+  // mork_change   mAtom_Change;    // how has this atom been changed?
+  // mork_u1       mAtom_Size;      // only for atoms smaller than 256 bytes
+
+  // morkAtomSpace* mBookAtom_Space; // mBookAtom_Space->mSpace_Scope is scope 
+  // mork_aid       mBookAtom_Id;    // identity token for this shared atom
+  
+public:
+  mork_u1     mWeeBookAtom_Body[ 1 ]; // 1st byte of immed content vector
+
+public: // empty construction does nothing
+  morkWeeBookAtom() { }
+  morkWeeBookAtom(mork_aid inAid);
+  
+  void InitWeeBookAtom(morkEnv* ev, const morkBuf& inBuf,
+    morkAtomSpace* ioSpace, mork_aid inAid);
+  
+  // allow extra trailing byte for a null byte:
+  static mork_size SizeForFill(mork_fill inFill)
+  { return sizeof(morkWeeBookAtom) + inFill; }
+
+private: // copying is not allowed
+  morkWeeBookAtom(const morkWeeBookAtom& other);
+  morkWeeBookAtom& operator=(const morkWeeBookAtom& other);
+};
+
+/*| BigBookAtom: .
+|*/
+class morkBigBookAtom : public morkBookAtom { //
+  
+  // mork_u1       mAtom_Kind;      // identifies a specific atom subclass
+  // mork_u1       mAtom_CellUses;  // number of persistent uses in a cell
+  // mork_change   mAtom_Change;    // how has this atom been changed?
+  // mork_u1       mAtom_Size;      // NOT USED IN "BIG" format atoms
+
+  // morkAtomSpace* mBookAtom_Space; // mBookAtom_Space->mSpace_Scope is scope 
+  // mork_aid       mBookAtom_Id;    // identity token for this shared atom
+  
+public:
+  mork_cscode   mBigBookAtom_Form;      // charset format encoding
+  mork_size     mBigBookAtom_Size;      // size of content vector
+  mork_u1       mBigBookAtom_Body[ 1 ]; // 1st byte of immed content vector
+
+public: // empty construction does nothing
+  morkBigBookAtom() { }
+  void InitBigBookAtom(morkEnv* ev, const morkBuf& inBuf,
+    mork_cscode inForm, morkAtomSpace* ioSpace, mork_aid inAid);
+  
+  // allow extra trailing byte for a null byte:
+  static mork_size SizeForFill(mork_fill inFill)
+  { return sizeof(morkBigBookAtom) + inFill; }
+
+private: // copying is not allowed
+  morkBigBookAtom(const morkBigBookAtom& other);
+  morkBigBookAtom& operator=(const morkBigBookAtom& other);
+};
+
+/*| MaxBookAtom: .
+|*/
+class morkMaxBookAtom : public morkBigBookAtom { //
+  
+  // mork_u1       mAtom_Kind;      // identifies a specific atom subclass
+  // mork_u1       mAtom_CellUses;  // number of persistent uses in a cell
+  // mork_change   mAtom_Change;    // how has this atom been changed?
+  // mork_u1       mAtom_Size;      // NOT USED IN "BIG" format atoms
+
+  // morkAtomSpace* mBookAtom_Space; // mBookAtom_Space->mSpace_Scope is scope 
+  // mork_aid       mBookAtom_Id;    // identity token for this shared atom
+
+  // mork_cscode   mBigBookAtom_Form;      // charset format encoding
+  // mork_size     mBigBookAtom_Size;      // size of content vector
+  // mork_u1       mBigBookAtom_Body[ 1 ]; // 1st byte of immed content vector
+  
+public:
+  mork_u1 mBigBookAtom_Body[ morkBookAtom_kMaxBodySize + 3 ]; // max bytes
+
+public: // empty construction does nothing
+  morkMaxBookAtom() { }
+  void InitMaxBookAtom(morkEnv* ev, const morkBuf& inBuf,
+    mork_cscode inForm, morkAtomSpace* ioSpace, mork_aid inAid)
+  { this->InitBigBookAtom(ev, inBuf, inForm, ioSpace, inAid); }
+
+private: // copying is not allowed
+  morkMaxBookAtom(const morkMaxBookAtom& other);
+  morkMaxBookAtom& operator=(const morkMaxBookAtom& other);
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKATOM_ */

mozilla/db/mork/src/morkAtomMap.cpp

@@ -0,0 +1,263 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKATOMMAP_
+#include "morkAtomMap.h"
+#endif
+
+#ifndef _MORKATOM_
+#include "morkAtom.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkAtomAidMap::CloseMorkNode(morkEnv* ev) // CloseAtomAidMap() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseAtomAidMap(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkAtomAidMap::~morkAtomAidMap() // assert CloseAtomAidMap() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkAtomAidMap::morkAtomAidMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+: morkMap(ev, inUsage,  ioHeap,
+  /*inKeySize*/ sizeof(morkBookAtom*), /*inValSize*/ 0,
+  morkAtomAidMap_kStartSlotCount, ioSlotHeap,
+  /*inHoldChanges*/ morkBool_kFalse)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kAtomAidMap;
+}
+
+/*public non-poly*/ void
+morkAtomAidMap::CloseAtomAidMap(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      this->CloseMap(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+// { ===== begin morkMap poly interface =====
+/*virtual*/ mork_bool // 
+morkAtomAidMap::Equal(morkEnv* ev, const void* inKeyA,
+  const void* inKeyB) const
+{
+  return (*(const morkBookAtom**) inKeyA)->EqualAid(
+    *(const morkBookAtom**) inKeyB);
+}
+
+/*virtual*/ mork_u4 // 
+morkAtomAidMap::Hash(morkEnv* ev, const void* inKey) const
+{
+  return (*(const morkBookAtom**) inKey)->HashAid();
+}
+// } ===== end morkMap poly interface =====
+
+
+mork_bool
+morkAtomAidMap::AddAtom(morkEnv* ev, morkBookAtom* ioAtom)
+{
+  if ( ev->Good() )
+  {
+    this->Put(ev, &ioAtom, /*val*/ (void*) 0, 
+      /*key*/ (void*) 0, /*val*/ (void*) 0, (mork_change**) 0);
+  }
+  return ev->Good();
+}
+
+morkBookAtom*
+morkAtomAidMap::CutAtom(morkEnv* ev, const morkBookAtom* inAtom)
+{
+  morkBookAtom* oldKey = 0;
+  this->Cut(ev, &inAtom, &oldKey, /*val*/ (void*) 0,
+    (mork_change**) 0);
+    
+  return oldKey;
+}
+
+morkBookAtom*
+morkAtomAidMap::GetAtom(morkEnv* ev, const morkBookAtom* inAtom)
+{
+  morkBookAtom* key = 0; // old val in the map
+  this->Get(ev, &inAtom, &key, /*val*/ (void*) 0, (mork_change**) 0);
+  
+  return key;
+}
+
+morkBookAtom*
+morkAtomAidMap::GetAid(morkEnv* ev, mork_aid inAid)
+{
+  morkWeeBookAtom weeAtom(inAid);
+  morkBookAtom* key = &weeAtom; // we need a pointer
+  morkBookAtom* oldKey = 0; // old key in the map
+  this->Get(ev, &key, &oldKey, /*val*/ (void*) 0, (mork_change**) 0);
+  
+  return oldKey;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkAtomBodyMap::CloseMorkNode(morkEnv* ev) // CloseAtomBodyMap() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseAtomBodyMap(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkAtomBodyMap::~morkAtomBodyMap() // assert CloseAtomBodyMap() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkAtomBodyMap::morkAtomBodyMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+: morkMap(ev, inUsage,  ioHeap,
+  /*inKeySize*/ sizeof(morkBookAtom*), /*inValSize*/ 0,
+  morkAtomBodyMap_kStartSlotCount, ioSlotHeap,
+  /*inHoldChanges*/ morkBool_kFalse)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kAtomBodyMap;
+}
+
+/*public non-poly*/ void
+morkAtomBodyMap::CloseAtomBodyMap(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      this->CloseMap(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+// { ===== begin morkMap poly interface =====
+/*virtual*/ mork_bool // 
+morkAtomBodyMap::Equal(morkEnv* ev, const void* inKeyA,
+  const void* inKeyB) const
+{
+  return (*(const morkBookAtom**) inKeyA)->EqualFormAndBody(ev,
+    *(const morkBookAtom**) inKeyB);
+}
+
+/*virtual*/ mork_u4 // 
+morkAtomBodyMap::Hash(morkEnv* ev, const void* inKey) const
+{
+  return (*(const morkBookAtom**) inKey)->HashFormAndBody(ev);
+}
+// } ===== end morkMap poly interface =====
+
+
+mork_bool
+morkAtomBodyMap::AddAtom(morkEnv* ev, morkBookAtom* ioAtom)
+{
+  if ( ev->Good() )
+  {
+    this->Put(ev, &ioAtom, /*val*/ (void*) 0, 
+      /*key*/ (void*) 0, /*val*/ (void*) 0, (mork_change**) 0);
+  }
+  return ev->Good();
+}
+
+morkBookAtom*
+morkAtomBodyMap::CutAtom(morkEnv* ev, const morkBookAtom* inAtom)
+{
+  morkBookAtom* oldKey = 0;
+  this->Cut(ev, &inAtom, &oldKey, /*val*/ (void*) 0,
+    (mork_change**) 0);
+    
+  return oldKey;
+}
+
+morkBookAtom*
+morkAtomBodyMap::GetAtom(morkEnv* ev, const morkBookAtom* inAtom)
+{
+  morkBookAtom* key = 0; // old val in the map
+  this->Get(ev, &inAtom, &key, /*val*/ (void*) 0, (mork_change**) 0);
+  
+  return key;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkAtomMap.h

@@ -0,0 +1,187 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKATOMMAP_
+#define _MORKATOMMAP_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kAtomAidMap  /*i*/ 0x6141 /* ascii 'aA' */
+
+#define morkAtomAidMap_kStartSlotCount 512
+
+/*| morkAtomAidMap: keys of morkBookAtom organized by atom ID
+|*/
+class morkAtomAidMap : public morkMap { // for mapping tokens to maps
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseAtomAidMap() only if open
+  virtual ~morkAtomAidMap(); // assert that CloseAtomAidMap() executed earlier
+  
+public: // morkMap construction & destruction
+  morkAtomAidMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap);
+  void CloseAtomAidMap(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsAtomAidMap() const
+  { return IsNode() && mNode_Derived == morkDerived_kAtomAidMap; }
+// } ===== end morkNode methods =====
+
+// { ===== begin morkMap poly interface =====
+  virtual mork_bool // note: equal(a,b) implies hash(a) == hash(b)
+  Equal(morkEnv* ev, const void* inKeyA, const void* inKeyB) const;
+  // implemented using morkBookAtom::HashAid()
+
+  virtual mork_u4 // note: equal(a,b) implies hash(a) == hash(b)
+  Hash(morkEnv* ev, const void* inKey) const;
+  // implemented using morkBookAtom::EqualAid()
+// } ===== end morkMap poly interface =====
+
+public: // other map methods
+
+  mork_bool      AddAtom(morkEnv* ev, morkBookAtom* ioAtom);
+  // AddAtom() returns ev->Good()
+
+  morkBookAtom*  CutAtom(morkEnv* ev, const morkBookAtom* inAtom);
+  // CutAtom() returns the atom removed equal to inAtom, if there was one
+  
+  morkBookAtom*  GetAtom(morkEnv* ev, const morkBookAtom* inAtom);
+  // GetAtom() returns the atom equal to inAtom, or else nil
+
+  morkBookAtom*  GetAid(morkEnv* ev, mork_aid inAid);
+  // GetAid() returns the atom equal to inAid, or else nil
+
+  // note the atoms are owned elsewhere, usuall by morkAtomSpace
+};
+
+
+class morkAtomAidMapIter: public morkMapIter{ // typesafe wrapper class
+
+public:
+  morkAtomAidMapIter(morkEnv* ev, morkAtomAidMap* ioMap)
+  : morkMapIter(ev, ioMap) { }
+ 
+  morkAtomAidMapIter( ) : morkMapIter()  { }
+  void InitAtomAidMapIter(morkEnv* ev, morkAtomAidMap* ioMap)
+  { this->InitMapIter(ev, ioMap); }
+   
+  mork_change* FirstAtom(morkEnv* ev, morkBookAtom** outAtomPtr)
+  { return this->First(ev, outAtomPtr, /*val*/ (void*) 0); }
+  
+  mork_change* NextAtom(morkEnv* ev, morkBookAtom** outAtomPtr)
+  { return this->Next(ev, outAtomPtr, /*val*/ (void*) 0); }
+  
+  mork_change* HereAtom(morkEnv* ev, morkBookAtom** outAtomPtr)
+  { return this->Here(ev, outAtomPtr, /*val*/ (void*) 0); }
+  
+  mork_change* CutHereAtom(morkEnv* ev, morkBookAtom** outAtomPtr)
+  { return this->CutHere(ev, outAtomPtr, /*val*/ (void*) 0); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kAtomBodyMap  /*i*/ 0x6142 /* ascii 'aB' */
+
+#define morkAtomBodyMap_kStartSlotCount 512
+
+/*| morkAtomBodyMap: keys of morkBookAtom organized by body bytes
+|*/
+class morkAtomBodyMap : public morkMap { // for mapping tokens to maps
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseAtomBodyMap() only if open
+  virtual ~morkAtomBodyMap(); // assert CloseAtomBodyMap() executed earlier
+  
+public: // morkMap construction & destruction
+  morkAtomBodyMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap);
+  void CloseAtomBodyMap(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsAtomBodyMap() const
+  { return IsNode() && mNode_Derived == morkDerived_kAtomBodyMap; }
+// } ===== end morkNode methods =====
+
+// { ===== begin morkMap poly interface =====
+  virtual mork_bool // note: equal(a,b) implies hash(a) == hash(b)
+  Equal(morkEnv* ev, const void* inKeyA, const void* inKeyB) const;
+  // implemented using morkBookAtom::HashFormAndBody()
+
+  virtual mork_u4 // note: equal(a,b) implies hash(a) == hash(b)
+  Hash(morkEnv* ev, const void* inKey) const;
+  // implemented using morkBookAtom::EqualFormAndBody()
+// } ===== end morkMap poly interface =====
+
+public: // other map methods
+
+  mork_bool      AddAtom(morkEnv* ev, morkBookAtom* ioAtom);
+  // AddAtom() returns ev->Good()
+
+  morkBookAtom*  CutAtom(morkEnv* ev, const morkBookAtom* inAtom);
+  // CutAtom() returns the atom removed equal to inAtom, if there was one
+  
+  morkBookAtom*  GetAtom(morkEnv* ev, const morkBookAtom* inAtom);
+  // GetAtom() returns the atom equal to inAtom, or else nil
+
+  // note the atoms are owned elsewhere, usuall by morkAtomSpace
+};
+
+class morkAtomBodyMapIter: public morkMapIter{ // typesafe wrapper class
+
+public:
+  morkAtomBodyMapIter(morkEnv* ev, morkAtomBodyMap* ioMap)
+  : morkMapIter(ev, ioMap) { }
+ 
+  morkAtomBodyMapIter( ) : morkMapIter()  { }
+  void InitAtomBodyMapIter(morkEnv* ev, morkAtomBodyMap* ioMap)
+  { this->InitMapIter(ev, ioMap); }
+   
+  mork_change* FirstAtom(morkEnv* ev, morkBookAtom** outAtomPtr)
+  { return this->First(ev, outAtomPtr, /*val*/ (void*) 0); }
+  
+  mork_change* NextAtom(morkEnv* ev, morkBookAtom** outAtomPtr)
+  { return this->Next(ev, outAtomPtr, /*val*/ (void*) 0); }
+  
+  mork_change* HereAtom(morkEnv* ev, morkBookAtom** outAtomPtr)
+  { return this->Here(ev, outAtomPtr, /*val*/ (void*) 0); }
+  
+  mork_change* CutHereAtom(morkEnv* ev, morkBookAtom** outAtomPtr)
+  { return this->CutHere(ev, outAtomPtr, /*val*/ (void*) 0); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKATOMMAP_ */

mozilla/db/mork/src/morkAtomSpace.cpp

@@ -0,0 +1,220 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKSPACE_
+#include "morkSpace.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKSPACE_
+#include "morkSpace.h"
+#endif
+
+#ifndef _MORKATOMSPACE_
+#include "morkAtomSpace.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+#ifndef _MORKATOM_
+#include "morkAtom.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkAtomSpace::CloseMorkNode(morkEnv* ev) // CloseAtomSpace() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseAtomSpace(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkAtomSpace::~morkAtomSpace() // assert CloseAtomSpace() executed earlier
+{
+  MORK_ASSERT(mAtomSpace_HighUnderId==0);
+  MORK_ASSERT(mAtomSpace_HighOverId==0);
+  MORK_ASSERT(this->IsShutNode());
+  MORK_ASSERT(mAtomSpace_AtomAids.IsShutNode());
+  MORK_ASSERT(mAtomSpace_AtomBodies.IsShutNode());
+}
+
+/*public non-poly*/
+morkAtomSpace::morkAtomSpace(morkEnv* ev, const morkUsage& inUsage,
+  mork_scope inScope, morkStore* ioStore,
+  nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+: morkSpace(ev, inUsage, inScope, ioStore, ioHeap, ioSlotHeap)
+, mAtomSpace_HighUnderId( morkAtomSpace_kMinUnderId )
+, mAtomSpace_HighOverId( morkAtomSpace_kMinOverId )
+, mAtomSpace_AtomAids(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioSlotHeap)
+, mAtomSpace_AtomBodies(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioSlotHeap)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kAtomSpace;
+}
+
+/*public non-poly*/ void
+morkAtomSpace::CloseAtomSpace(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mAtomSpace_AtomBodies.CloseMorkNode(ev);
+      morkStore* store = mSpace_Store;
+      if ( store )
+        this->CutAllAtoms(ev, &store->mStore_Pool);
+      
+      mAtomSpace_AtomAids.CloseMorkNode(ev);
+      this->CloseSpace(ev);
+      mAtomSpace_HighUnderId = 0;
+      mAtomSpace_HighOverId = 0;
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void
+morkAtomSpace::NonAtomSpaceTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkAtomSpace");
+}
+
+mork_num
+morkAtomSpace::CutAllAtoms(morkEnv* ev, morkPool* ioPool)
+{
+  mork_num outSlots = mAtomSpace_AtomAids.mMap_Fill;
+  morkBookAtom* a = 0; // old key atom in the map
+  
+  mork_change* c = 0;
+  morkAtomAidMapIter i(ev, &mAtomSpace_AtomAids);
+  for ( c = i.FirstAtom(ev, &a); c ; c = i.NextAtom(ev, &a) )
+  {
+    if ( a )
+      ioPool->ZapAtom(ev, a);
+    i.CutHereAtom(ev, /*key*/ (morkBookAtom**) 0);
+  }
+  
+  return outSlots;
+}
+
+
+morkBookAtom*
+morkAtomSpace::MakeBookAtomCopy(morkEnv* ev, const morkBigBookAtom& inAtom)
+// make copy of inAtom and put it in both maps, using a new ID as needed.
+{
+  morkBookAtom* outAtom = 0;
+  if ( ev->Good() )
+  {
+    morkPool* pool = this->GetSpaceStorePool();
+    morkBookAtom* atom = pool->NewBookAtomCopy(ev, inAtom);
+    if ( atom )
+    {
+      mork_aid id = this->MakeNewAtomId(ev, atom);
+      if ( id )
+      {
+        outAtom = atom;
+        mAtomSpace_AtomAids.AddAtom(ev, atom);
+        mAtomSpace_AtomBodies.AddAtom(ev, atom);
+      }
+    }
+  }
+  return outAtom;
+}
+
+
+mork_aid
+morkAtomSpace::MakeNewAtomId(morkEnv* ev, morkBookAtom* ioAtom)
+{
+  mork_aid outAid = 0;
+  mork_tid id = mAtomSpace_HighUnderId;
+  mork_num count = 8; // try up to eight times
+  
+  while ( !outAid && count ) // still trying to find an unused table ID?
+  {
+    --count;
+    ioAtom->mBookAtom_Id = id;
+    if ( !mAtomSpace_AtomAids.GetAtom(ev, ioAtom) )
+      outAid = id;
+    else
+    {
+      MORK_ASSERT(morkBool_kFalse); // alert developer about ID problems
+      ++id;
+    }
+  }
+  
+  mAtomSpace_HighUnderId = id + 1;
+  return outAid;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+morkAtomSpaceMap::~morkAtomSpaceMap()
+{
+}
+
+morkAtomSpaceMap::morkAtomSpaceMap(morkEnv* ev, const morkUsage& inUsage,
+  nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+  : morkNodeMap(ev, inUsage, ioHeap, ioSlotHeap)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kAtomSpaceMap;
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkAtomSpace.h

@@ -0,0 +1,213 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKATOMSPACE_
+#define _MORKATOMSPACE_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKSPACE_
+#include "morkSpace.h"
+#endif
+
+#ifndef _MORKATOMMAP_
+#include "morkAtomMap.h"
+#endif
+
+#ifndef _MORKNODEMAP_
+#include "morkNodeMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/*| kMinUnderId: the smallest ID we auto-assign to the 'under' namespace
+**| reserved for tokens expected to occur very frequently, such as the names
+**| of columns.  We reserve single byte ids in the ASCII range to correspond
+**| one-to-one to those tokens consisting single ASCII characters (so that
+**| this assignment is always known and constant).  So we start at 0x80, and
+**| then reserve the upper half of two hex digit ids and all the three hex
+**| digit IDs for the 'under' namespace for common tokens.
+|*/
+#define morkAtomSpace_kMinUnderId 0x80   /* low 7 bits mean byte tokens */
+
+#define morkAtomSpace_kMaxSevenBitAid 0x7F  /* low seven bit integer ID */
+
+/*| kMinOverId: the smallest ID we auto-assign to the 'over' namespace that
+**| might include very large numbers of tokens that are used infrequently,
+**| so that we care less whether the shortest hex representation is used.
+**| So we start all IDs for 'over' category tokens at a value range that
+**| needs at least four hex digits, so we can reserve three hex digits and
+**| shorter for more commonly occuring tokens in the 'under' category.
+|*/
+#define morkAtomSpace_kMinOverId 0x1000  /* using at least four hex bytes */
+
+#define morkDerived_kAtomSpace  /*i*/ 0x6153 /* ascii 'aS' */
+
+/*| morkAtomSpace:
+|*/
+class morkAtomSpace : public morkSpace { // 
+
+// public: // slots inherited from morkSpace (meant to inform only)
+  // nsIMdbHeap*    mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+  
+  // morkStore*  mSpace_Store; // weak ref to containing store
+  // mork_scope  mSpace_Scope; // the scope for this space
+  
+  // mork_bool   mSpace_DoAutoIDs;    // whether db should assign member IDs
+  // mork_bool   mSpace_HaveDoneAutoIDs; // whether actually auto assigned IDs
+  // mork_u1     mSpace_Pad[ 2 ];     // pad to u4 alignment
+
+public: // state is public because the entire Mork system is private
+
+  mork_aid         mAtomSpace_HighUnderId; // high ID in 'under' range
+  mork_aid         mAtomSpace_HighOverId;  // high ID in 'over' range
+  
+  morkAtomAidMap   mAtomSpace_AtomAids; // all atoms in space by ID
+  morkAtomBodyMap  mAtomSpace_AtomBodies; // all atoms in space by body
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseAtomSpace() only if open
+  virtual ~morkAtomSpace(); // assert that CloseAtomSpace() executed earlier
+  
+public: // morkMap construction & destruction
+  morkAtomSpace(morkEnv* ev, const morkUsage& inUsage, mork_scope inScope, 
+    morkStore* ioStore, nsIMdbHeap* ioNodeHeap, nsIMdbHeap* ioSlotHeap);
+  void CloseAtomSpace(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsAtomSpace() const
+  { return IsNode() && mNode_Derived == morkDerived_kAtomSpace; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  void NonAtomSpaceTypeError(morkEnv* ev);
+
+public: // setup
+
+  mork_bool MarkAllAtomSpaceContentDirty(morkEnv* ev);
+  // MarkAllAtomSpaceContentDirty() visits every space object and marks 
+  // them dirty, including every table, row, cell, and atom.  The return
+  // equals ev->Good(), to show whether any error happened.  This method is
+  // intended for use in the beginning of a "compress commit" which writes
+  // all store content, whether dirty or not.  We dirty everything first so
+  // that later iterations over content can mark things clean as they are
+  // written, and organize the process of serialization so that objects are
+  // written only at need (because of being dirty).
+
+public: // other space methods
+
+  mork_num CutAllAtoms(morkEnv* ev, morkPool* ioPool);
+  // CutAllAtoms() puts all the atoms back in the pool.
+  
+  morkBookAtom* MakeBookAtomCopy(morkEnv* ev, const morkBigBookAtom& inAtom);
+  // Make copy of inAtom and put it in both maps, using a new ID as needed.
+
+  mork_aid MakeNewAtomId(morkEnv* ev, morkBookAtom* ioAtom);
+  // generate an unused atom id.
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakAtomSpace(morkAtomSpace* me,
+    morkEnv* ev, morkAtomSpace** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongAtomSpace(morkAtomSpace* me,
+    morkEnv* ev, morkAtomSpace** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kAtomSpaceMap  /*i*/ 0x615A /* ascii 'aZ' */
+
+/*| morkAtomSpaceMap: maps mork_scope -> morkAtomSpace
+|*/
+class morkAtomSpaceMap : public morkNodeMap { // for mapping tokens to tables
+
+public:
+
+  virtual ~morkAtomSpaceMap();
+  morkAtomSpaceMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap);
+
+public: // other map methods
+
+  mork_bool  AddAtomSpace(morkEnv* ev, morkAtomSpace* ioAtomSpace)
+  { return this->AddNode(ev, ioAtomSpace->mSpace_Scope, ioAtomSpace); }
+  // the AddAtomSpace() boolean return equals ev->Good().
+
+  mork_bool  CutAtomSpace(morkEnv* ev, mork_scope inScope)
+  { return this->CutNode(ev, inScope); }
+  // The CutAtomSpace() boolean return indicates whether removal happened. 
+  
+  morkAtomSpace*  GetAtomSpace(morkEnv* ev, mork_scope inScope)
+  { return (morkAtomSpace*) this->GetNode(ev, inScope); }
+  // Note the returned space does NOT have an increase in refcount for this.
+
+  mork_num CutAllAtomSpaces(morkEnv* ev)
+  { return this->CutAllNodes(ev); }
+  // CutAllAtomSpaces() releases all the referenced table values.
+};
+
+class morkAtomSpaceMapIter: public morkMapIter{ // typesafe wrapper class
+
+public:
+  morkAtomSpaceMapIter(morkEnv* ev, morkAtomSpaceMap* ioMap)
+  : morkMapIter(ev, ioMap) { }
+ 
+  morkAtomSpaceMapIter( ) : morkMapIter()  { }
+  void InitAtomSpaceMapIter(morkEnv* ev, morkAtomSpaceMap* ioMap)
+  { this->InitMapIter(ev, ioMap); }
+   
+  mork_change*
+  FirstAtomSpace(morkEnv* ev, mork_scope* outScope, morkAtomSpace** outAtomSpace)
+  { return this->First(ev, outScope, outAtomSpace); }
+  
+  mork_change*
+  NextAtomSpace(morkEnv* ev, mork_scope* outScope, morkAtomSpace** outAtomSpace)
+  { return this->Next(ev, outScope, outAtomSpace); }
+  
+  mork_change*
+  HereAtomSpace(morkEnv* ev, mork_scope* outScope, morkAtomSpace** outAtomSpace)
+  { return this->Here(ev, outScope, outAtomSpace); }
+  
+  mork_change*
+  CutHereAtomSpace(morkEnv* ev, mork_scope* outScope, morkAtomSpace** outAtomSpace)
+  { return this->CutHere(ev, outScope, outAtomSpace); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKATOMSPACE_ */

mozilla/db/mork/src/morkBlob.cpp

@@ -0,0 +1,62 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKBLOB_
+#include "morkBlob.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+morkSpool::morkSpool(morkEnv* ev, nsIMdbHeap* ioHeap)
+{
+  mBuf_Body = 0;
+  mBuf_Fill = 0;
+  mBlob_Size = 0;
+  mText_Form = 0;
+  mSpool_Heap = ioHeap;
+  if ( !ioHeap )
+    ev->NilPointerError();
+}
+
+void
+morkSpool::CloseSpool(morkEnv* ev)
+{
+  void* body = mBuf_Body;
+  nsIMdbHeap* heap = mSpool_Heap;
+  
+  if ( body && heap )
+  {
+    heap->Free(ev->AsMdbEnv(), body);
+  }
+  mBuf_Body = 0;
+  mSpool_Heap = 0;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkBlob.h

@@ -0,0 +1,144 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKBLOB_
+#define _MORKBLOB_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/*| Buf: the minimum needed to describe location and content length.
+**| This is typically only enough to read from this buffer, since
+**| one cannot write effectively without knowing the size of a buf.
+|*/
+class morkBuf { // subset of nsIMdbYarn slots
+public:
+  void*         mBuf_Body;  // space for holding any binary content
+  mork_fill     mBuf_Fill;  // logical content in Buf in bytes
+
+public:
+  morkBuf() { }
+  morkBuf(const void* ioBuf, mork_fill inFill)
+  : mBuf_Body((void*) ioBuf), mBuf_Fill(inFill) { }
+
+private: // copying is not allowed
+  morkBuf(const morkBuf& other);
+  morkBuf& operator=(const morkBuf& other);
+};
+
+/*| Blob: a buffer with an associated size, to increase known buf info
+**| to include max capacity in addition to buf location and content.
+**| This form factor allows us to allocate a vector of such blobs,
+**| which can share the same managing heap stored elsewhere, and that
+**| is why we don't include a pointer to a heap in this blob class.
+|*/
+class morkBlob : public morkBuf { // greater subset of nsIMdbYarn slots
+
+  // void*         mBuf_Body;  // space for holding any binary content
+  // mdb_fill      mBuf_Fill;  // logical content in Buf in bytes
+public:
+  mork_size      mBlob_Size;  // physical size of Buf in bytes
+
+public:
+  morkBlob() { }
+  morkBlob(const void* ioBuf, mork_fill inFill, mork_size inSize)
+  : morkBuf(ioBuf, inFill), mBlob_Size(inSize) { }
+  
+public:
+  mork_bool Grow(morkEnv* ev, nsIMdbHeap* ioHeap, mork_size inNewSize);
+
+private: // copying is not allowed
+  morkBlob(const morkBlob& other);
+  morkBlob& operator=(const morkBlob& other);
+  
+};
+
+/*| Text: a blob with an associated charset annotation, where the
+**| charset actually includes the general notion of typing, and not
+**| just a specification of character set alone; we want to permit
+**| arbitrary charset annotations for ad hoc binary types as well.
+**| (We avoid including a nsIMdbHeap pointer in morkText for the same
+**| reason morkBlob does: we want minimal size vectors of morkText.)
+|*/
+class morkText : public morkBlob { // greater subset of nsIMdbYarn slots
+
+  // void*         mBuf_Body;  // space for holding any binary content
+  // mdb_fill      mBuf_Fill;  // logical content in Buf in bytes
+  // mdb_size      mBlob_Size;  // physical size of Buf in bytes
+
+public:
+  mork_cscode    mText_Form;  // charset format encoding
+
+  morkText() { }
+
+private: // copying is not allowed
+  morkText(const morkText& other);
+  morkText& operator=(const morkText& other);
+};
+
+/*| Spool: a text with an associated nsIMdbHeap instance that provides
+**| all memory management for the space pointed to by mBuf_Body. (This
+**| was the hardest type to give a name in this small class hierarchy,
+**| because it's hard to characterize self-management of one's space.)
+**| A spool is a self-contained blob that knows how to grow itself as
+**| necessary to hold more content when necessary.  Spool descends from
+**| morkText to include the mText_Form slot, even though this won't be
+**| needed always, because we are not as concerned about the overall
+**| size of this particular Spool object (if we were concerned about
+**| the size of an array of Spool instances, we would not bother with
+**| a separate heap pointer for each of them).
+**|
+**|| A spool makes a good medium in which to stream content as a sink,
+**| so we will have a subclass of morkSink called morkSpoolSink that
+**| will stream bytes into this self-contained spool object. The name
+**| of this morkSpool class derives more from this intended usage than
+**| from anything else.  The Mork code to parse db content will use
+**| spools with associated sinks to accumulate parsed strings.
+**|
+**|| Heap: this is the heap used for memory allocation.  This instance
+**| is NOT refcounted, since this spool always assumes the heap is held
+**| through a reference elsewhere (for example, through the same object
+**| that contains or holds the spool itself.  This lack of refcounting
+**| is consistent with the fact that morkSpool itself is not refcounted,
+**| and is not intended for use as a standalone object.
+|*/
+class morkSpool : public morkText { // self-managing text blob object
+
+  // void*         mBuf_Body;  // space for holding any binary content
+  // mdb_fill      mBuf_Fill;  // logical content in Buf in bytes
+  // mdb_size      mBlob_Size;  // physical size of Buf in bytes
+  // mdb_cscode    mText_Form;  // charset format encoding
+public:
+  nsIMdbHeap*      mSpool_Heap;  // storage manager for mBuf_Body pointer
+
+public:
+  morkSpool(morkEnv* ev, nsIMdbHeap* ioHeap);
+  
+  void CloseSpool(morkEnv* ev);
+
+private: // copying is not allowed
+  morkSpool(const morkSpool& other);
+  morkSpool& operator=(const morkSpool& other);
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKBLOB_ */

mozilla/db/mork/src/morkBuilder.cpp

@@ -0,0 +1,325 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKPARSER_
+#include "morkParser.h"
+#endif
+
+#ifndef _MORKBUILDER_
+#include "morkBuilder.h"
+#endif
+
+#ifndef _MORKCELL_
+#include "morkCell.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkBuilder::CloseMorkNode(morkEnv* ev) // CloseBuilder() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseBuilder(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkBuilder::~morkBuilder() // assert CloseBuilder() executed earlier
+{
+  MORK_ASSERT(mBuilder_Table==0);
+}
+
+/*public non-poly*/
+morkBuilder::morkBuilder(morkEnv* ev,
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap, 
+  morkStream* ioStream, mdb_count inBytesPerParseSegment,
+  nsIMdbHeap* ioSlotHeap, morkStore* ioStore)
+: morkParser(ev, inUsage, ioHeap, ioStream,
+  inBytesPerParseSegment, ioSlotHeap)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kBuilder;
+}
+
+/*public non-poly*/ void
+morkBuilder::CloseBuilder(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      this->CloseParser(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void
+morkBuilder::NonBuilderTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkBuilder");
+}
+
+/*virtual*/ void
+morkBuilder::AliasToYarn(morkEnv* ev,
+  const morkAlias& inAlias,  // typically an alias to concat with strings
+  mdbYarn* outYarn)
+// The parser might ask that some aliases be turned into yarns, so they
+// can be concatenated into longer blobs under some circumstances.  This
+// is an alternative to using a long and complex callback for many parts
+// for a single cell value.
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnNewPort(morkEnv* ev, const morkPlace& inPlace)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnPortGlitch(morkEnv* ev, const morkGlitch& inGlitch)  
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnPortEnd(morkEnv* ev, const morkSpan& inSpan)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnNewGroup(morkEnv* ev, const morkPlace& inPlace, mork_gid inGid)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnGroupGlitch(morkEnv* ev, const morkGlitch& inGlitch) 
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnGroupCommitEnd(morkEnv* ev, const morkSpan& inSpan)  
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnGroupAbortEnd(morkEnv* ev, const morkSpan& inSpan) 
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnNewPortRow(morkEnv* ev, const morkPlace& inPlace, 
+  const morkAlias& inAlias, mork_change inChange)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnPortRowGlitch(morkEnv* ev, const morkGlitch& inGlitch)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnPortRowEnd(morkEnv* ev, const morkSpan& inSpan)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnNewTable(morkEnv* ev, const morkPlace& inPlace,
+  const morkAlias& inAlias, mork_change inChange)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnTableGlitch(morkEnv* ev, const morkGlitch& inGlitch)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnTableEnd(morkEnv* ev, const morkSpan& inSpan)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnNewMeta(morkEnv* ev, const morkPlace& inPlace)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnMetaGlitch(morkEnv* ev, const morkGlitch& inGlitch)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnMetaEnd(morkEnv* ev, const morkSpan& inSpan)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnNewRow(morkEnv* ev, const morkPlace& inPlace, 
+  const morkAlias& inAlias, mork_change inChange)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnRowGlitch(morkEnv* ev, const morkGlitch& inGlitch) 
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnRowEnd(morkEnv* ev, const morkSpan& inSpan) 
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnNewDict(morkEnv* ev, const morkPlace& inPlace)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnDictGlitch(morkEnv* ev, const morkGlitch& inGlitch) 
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnDictEnd(morkEnv* ev, const morkSpan& inSpan)  
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnAlias(morkEnv* ev, const morkSpan& inSpan,
+  const morkAlias& inAlias)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnAliasGlitch(morkEnv* ev, const morkGlitch& inGlitch)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnNewCell(morkEnv* ev, const morkPlace& inPlace,
+  const morkAlias& inAlias, mork_change inChange)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnCellGlitch(morkEnv* ev, const morkGlitch& inGlitch)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnCellForm(morkEnv* ev, mork_cscode inCharsetFormat)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnCellEnd(morkEnv* ev, const morkSpan& inSpan)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnValue(morkEnv* ev, const morkSpan& inSpan,
+  const morkBuf& inBuf)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnValueAlias(morkEnv* ev, const morkSpan& inSpan,
+  const morkAlias& inAlias)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnRowAlias(morkEnv* ev, const morkSpan& inSpan,
+  const morkAlias& inAlias)
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkBuilder::OnTableAlias(morkEnv* ev, const morkSpan& inSpan,
+  const morkAlias& inAlias)
+{
+  ev->StubMethodOnlyError();
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkBuilder.h

@@ -0,0 +1,290 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKBUILDER_
+#define _MORKBUILDER_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKPARSER_
+#include "morkParser.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+ 
+/*| kCellsVecSize: length of cell vector buffer inside morkBuilder
+|*/
+#define morkBuilder_kCellsVecSize 64
+
+#define morkBuilder_kDefaultBytesPerParseSegment 512 /* plausible to big */
+
+#define morkDerived_kBuilder     /*i*/ 0x4275 /* ascii 'Bu' */
+
+class morkBuilder /*d*/ : public morkParser {
+
+// public: // slots inherited from morkParser (meant to inform only)
+  // nsIMdbHeap*       mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+
+
+  // nsIMdbHeap*      mParser_Heap;   // refcounted heap used for allocation
+  // morkStream*   mParser_Stream; // refcounted input stream
+    
+  // mork_u4       mParser_Tag; // must equal morkParser_kTag
+  // mork_count    mParser_MoreGranularity; // constructor inBytesPerParseSegment
+
+  // mork_u4       mParser_State; // state where parser should resume
+ 
+  // after finding ends of group transactions, we can re-seek the start:
+  // mork_pos      mParser_GroupContentStartPos; // start of this group
+    
+  // mork_gid      mParser_GroupId; // group ID if inside a group
+  // mork_tid      mParser_TableId; // table ID if inside a table
+  // mork_rid      mParser_RowId;   // row ID if inside a row
+    
+  // mork_bool     mParser_InPort;  // called OnNewPort but not OnPortEnd?
+  // mork_bool     mParser_InDict;  // called OnNewDict but not OnDictEnd?
+  // mork_bool     mParser_InCell;  // called OnNewCell but not OnCellEnd?
+  // mork_bool     mParser_InMeta;  // called OnNewMeta but not OnMetaEnd?
+    
+  // morkAlias     mParser_Alias;   // current alias being parsed
+  // note that mParser_Alias.mAlias_Buf points at mParser_ScopeSpool below:
+    
+  // blob spools allocated in mParser_Heap
+  // morkSpool     mParser_ScopeSpool;   // place to accumulate ID scope blobs
+  // morkSpool     mParser_ValueSpool;   // place to accumulate value blobs
+  // morkSpool     mParser_ColumnSpool;  // place to accumulate column blobs
+  // morkSpool     mParser_StringSpool;  // place to accumulate string blobs
+    
+  // morkSpoolSink mParser_ScopeSink;  // writes to mParser_ScopeSpool
+  // morkSpoolSink mParser_ValueSink;  // writes to mParser_ValueSpool
+  // morkSpoolSink mParser_ColumnSink; // writes to mParser_ColumnSpool
+  // morkSpoolSink mParser_StringSink; // writes to mParser_StringSpool
+
+  // yarns allocated in mParser_Heap
+  // morkYarn      mParser_AliasYarn;   // place to receive from AliasToYarn()
+  
+  // span showing current ongoing file position status:
+  // morkSpan      mParser_PortSpan; // span of current db port file
+    
+  // various spans denoting nested subspaces inside the file's port span:
+  // morkSpan      mParser_GroupSpan; // span of current transaction group
+  // morkSpan      mParser_DictSpan;
+  // morkSpan      mParser_AliasSpan;
+  // morkSpan      mParser_MetaDictSpan;
+  // morkSpan      mParser_TableSpan;
+  // morkSpan      mParser_MetaTableSpan;
+  // morkSpan      mParser_RowSpan;
+  // morkSpan      mParser_MetaRowSpan;
+  // morkSpan      mParser_CellSpan;
+  // morkSpan      mParser_ColumnSpan;
+  // morkSpan      mParser_SlotSpan;
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+protected: // protected morkBuilder members
+  
+  // weak refs that do not prevent closure of referenced nodes:
+  morkStore*       mBuilder_Store; // weak ref to builder's store
+  
+  // strong refs that do indeed prevent closure of referenced nodes:
+  morkTable*       mBuilder_Table;    // current table being built (or nil)
+  morkRow*         mBuilder_Row;      // current row being built (or nil)
+  morkCell*        mBuilder_Cell;     // current cell within CellsVec (or nil)
+  
+  morkRowSpace*    mBuilder_RowSpace;  // space for mBuilder_CurrentRowScope
+  morkAtomSpace*   mBuilder_AtomSpace; // space for mBuilder_CurrentAtomScope
+  
+  morkAtomSpace*   mBuilder_OidAtomSpace;   // ground atom space for oids
+  morkAtomSpace*   mBuilder_ScopeAtomSpace; // ground atom space for scopes
+  
+  // scoped object ids for current objects under construction:
+  mdbOid           mBuilder_TableOid; // full oid for current table
+  mdbOid           mBuilder_RowOid;   // full oid for current row
+  
+  // standard tokens that we want to know about for this port:
+  mork_cscode      mBuilder_iso_8859_1; // token for "iso-8859-1"
+  mork_cscode      mBuilder_r;          // token for "r"
+  mork_cscode      mBuilder_a;          // token for "a"
+  mork_cscode      mBuilder_t;          // token for "t"
+  
+  // tokens that become set as the result of meta cells in port rows:
+  mork_cscode      mBuilder_PortForm;       // default port charset format
+  mork_scope       mBuilder_PortRowScope;   // port row scope
+  mork_scope       mBuilder_PortAtomScope;  // port atom scope
+
+  // tokens that become set as the result of meta cells in meta tables:
+  mork_cscode      mBuilder_TableForm;       // default table charset format
+  mork_scope       mBuilder_TableRowScope;   // table row scope
+  mork_scope       mBuilder_TableAtomScope;  // table atom scope
+  mork_kind        mBuilder_TableKind;       // table kind
+  
+  // tokens that become set as the result of meta cells in meta rows:
+  mork_cscode      mBuilder_RowForm;       // default row charset format
+  mork_scope       mBuilder_RowRowScope;   // row scope per row metainfo
+  mork_scope       mBuilder_RowAtomScope;  // row atom scope
+
+  // meta tokens currently in force, driven by meta info slots above:
+  mork_cscode      mBuilder_CurrentForm;       // current charset format
+  mork_scope       mBuilder_CurrentRowScope;   // current row scope
+  mork_scope       mBuilder_CurrentAtomScope;  // current atom scope
+  
+  // If any of these 'cut' bools are true, it means a minus was seen in the
+  // Mork source text to indicate removal of content from some container.
+  // (Note there is no corresponding 'add' bool, since add is the default.)
+  // CutRow implies the current row should be cut from the table.
+  // CutCell implies the current column should be cut from the row.
+  mork_bool        mBuilder_CutRow;    // row with kCut change
+  mork_bool        mBuilder_CutCell;   // cell with kCut change
+  mork_u1          mBuilder_Pad1;      // pad to u4 alignment
+  mork_u1          mBuilder_Pad2;      // pad to u4 alignment
+  
+  morkCell         mBuilder_CellsVec[ morkBuilder_kCellsVecSize ];
+  mork_fill        mBuilder_CellsVecFill; // count used in CellsVec
+  // Note when mBuilder_CellsVecFill equals morkBuilder_kCellsVecSize, and 
+  // another cell is added, this means all the cells in the vector above
+  // must be flushed to the current row being built to create more room.
+  
+protected: // protected inlines
+
+  mork_bool  CellVectorIsFull() const
+  { return ( mBuilder_CellsVecFill == morkBuilder_kCellsVecSize ); };
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseBuilder() only if open
+  virtual ~morkBuilder(); // assert that CloseBuilder() executed earlier
+  
+public: // morkYarn construction & destruction
+  morkBuilder(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+    morkStream* ioStream,  // the readonly stream for input bytes
+    mdb_count inBytesPerParseSegment, // target for ParseMore()
+    nsIMdbHeap* ioSlotHeap, morkStore* ioStore
+    );
+      
+  void CloseBuilder(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkBuilder(const morkBuilder& other);
+  morkBuilder& operator=(const morkBuilder& other);
+
+public: // dynamic type identification
+  mork_bool IsBuilder() const
+  { return IsNode() && mNode_Derived == morkDerived_kBuilder; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonBuilderTypeError(morkEnv* ev);
+  
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // in virtual morkParser methods, data flow subclass to parser
+
+    virtual void AliasToYarn(morkEnv* ev,
+      const morkAlias& inAlias,  // typically an alias to concat with strings
+      mdbYarn* outYarn);
+    // The parser might ask that some aliases be turned into yarns, so they
+    // can be concatenated into longer blobs under some circumstances.  This
+    // is an alternative to using a long and complex callback for many parts
+    // for a single cell value.
+  
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // out virtual morkParser methods, data flow parser to subclass
+
+    virtual void OnNewPort(morkEnv* ev, const morkPlace& inPlace);
+    virtual void OnPortGlitch(morkEnv* ev, const morkGlitch& inGlitch);  
+    virtual void OnPortEnd(morkEnv* ev, const morkSpan& inSpan);  
+
+    virtual void OnNewGroup(morkEnv* ev, const morkPlace& inPlace, mork_gid inGid);
+    virtual void OnGroupGlitch(morkEnv* ev, const morkGlitch& inGlitch);  
+    virtual void OnGroupCommitEnd(morkEnv* ev, const morkSpan& inSpan);  
+    virtual void OnGroupAbortEnd(morkEnv* ev, const morkSpan& inSpan);  
+
+    virtual void OnNewPortRow(morkEnv* ev, const morkPlace& inPlace, 
+      const morkAlias& inAlias, mork_change inChange);
+    virtual void OnPortRowGlitch(morkEnv* ev, const morkGlitch& inGlitch);  
+    virtual void OnPortRowEnd(morkEnv* ev, const morkSpan& inSpan);  
+
+    virtual void OnNewTable(morkEnv* ev, const morkPlace& inPlace,
+      const morkAlias& inAlias, mork_change inChange);
+    virtual void OnTableGlitch(morkEnv* ev, const morkGlitch& inGlitch);
+    virtual void OnTableEnd(morkEnv* ev, const morkSpan& inSpan);
+      
+    virtual void OnNewMeta(morkEnv* ev, const morkPlace& inPlace);
+    virtual void OnMetaGlitch(morkEnv* ev, const morkGlitch& inGlitch);
+    virtual void OnMetaEnd(morkEnv* ev, const morkSpan& inSpan);
+
+    virtual void OnNewRow(morkEnv* ev, const morkPlace& inPlace, 
+      const morkAlias& inAlias, mork_change inChange);
+    virtual void OnRowGlitch(morkEnv* ev, const morkGlitch& inGlitch);  
+    virtual void OnRowEnd(morkEnv* ev, const morkSpan& inSpan);  
+
+    virtual void OnNewDict(morkEnv* ev, const morkPlace& inPlace);
+    virtual void OnDictGlitch(morkEnv* ev, const morkGlitch& inGlitch);  
+    virtual void OnDictEnd(morkEnv* ev, const morkSpan& inSpan);  
+
+    virtual void OnAlias(morkEnv* ev, const morkSpan& inSpan,
+      const morkAlias& inAlias);
+
+    virtual void OnAliasGlitch(morkEnv* ev, const morkGlitch& inGlitch);
+
+    virtual void OnNewCell(morkEnv* ev, const morkPlace& inPlace,
+      const morkAlias& inAlias, mork_change inChange);
+    virtual void OnCellGlitch(morkEnv* ev, const morkGlitch& inGlitch);
+    virtual void OnCellForm(morkEnv* ev, mork_cscode inCharsetFormat);
+    virtual void OnCellEnd(morkEnv* ev, const morkSpan& inSpan);
+      
+    virtual void OnValue(morkEnv* ev, const morkSpan& inSpan,
+      const morkBuf& inBuf);
+
+    virtual void OnValueAlias(morkEnv* ev, const morkSpan& inSpan,
+      const morkAlias& inAlias);
+
+    virtual void OnRowAlias(morkEnv* ev, const morkSpan& inSpan,
+      const morkAlias& inAlias);
+
+    virtual void OnTableAlias(morkEnv* ev, const morkSpan& inSpan,
+      const morkAlias& inAlias);
+  
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // public non-poly morkBuilder methods
+  
+  
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakBuilder(morkBuilder* me,
+    morkEnv* ev, morkBuilder** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongBuilder(morkBuilder* me,
+    morkEnv* ev, morkBuilder** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKBUILDER_ */

mozilla/db/mork/src/morkCell.cpp

@@ -0,0 +1,120 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKCELL_
+#include "morkCell.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+void
+morkCell::SetYarn(morkEnv* ev, const mdbYarn* inYarn, morkStore* ioStore)
+{
+  morkAtom* atom = ioStore->YarnToAtom(ev, inYarn);
+  if ( atom )
+    this->SetAtom(ev, atom, ioStore->StorePool()); // refcounts atom
+}
+
+void
+morkCell::GetYarn(morkEnv* ev, mdbYarn* outYarn) const
+{
+  mCell_Atom->GetYarn(outYarn);
+}
+
+void
+morkCell::AliasYarn(morkEnv* ev, mdbYarn* outYarn) const
+{
+  mCell_Atom->AliasYarn(outYarn);
+}
+  
+  
+void
+morkCell::SetCellDirty()
+{
+  mork_column col = this->GetColumn();
+  this->SetColumnAndChange(col, morkChange_kAdd);
+}
+
+void
+morkCell::SetAtom(morkEnv* ev, morkAtom* ioAtom, morkPool* ioPool)
+  // SetAtom() "acquires" the new ioAtom if non-nil, by calling AddCellUse()
+  // to increase the refcount, and puts ioAtom into mCell_Atom.  If the old
+  // atom in mCell_Atom is non-nil, then it is "released" first by a call to
+  // CutCellUse(), and if the use count then becomes zero, then the old atom
+  // is deallocated by returning it to the pool ioPool.  (And this is
+  // why ioPool is a parameter to this method.)  Note that ioAtom can be nil
+  // to cause the cell to refer to nothing, and the old atom in mCell_Atom
+  // can also be nil, and all the atom refcounting is handled correctly.
+  //
+  // Note that if ioAtom was just created, it typically has a zero use count
+  // before calling SetAtom().  But use count is one higher after SetAtom().
+{
+  morkAtom* oldAtom = mCell_Atom;
+  if ( oldAtom != ioAtom ) // ioAtom is not already installed in this cell?
+  {
+    if ( oldAtom )
+    {
+      mCell_Atom = 0;
+      if ( oldAtom->CutCellUse(ev) == 0 )
+      {
+        if ( ioPool )
+        {
+          if ( oldAtom->IsBook() )
+            ((morkBookAtom*) oldAtom)->CutBookAtomFromSpace(ev);
+            
+          ioPool->ZapAtom(ev, oldAtom);
+        }
+        else
+          ev->NilPointerError();
+      }
+    }
+    if ( ioAtom )
+      ioAtom->AddCellUse(ev);
+      
+    mCell_Atom = ioAtom;
+  }
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkCell.h

@@ -0,0 +1,89 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKCELL_
+#define _MORKCELL_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDelta_kShift 8 /* 8 bit shift */
+#define morkDelta_kChangeMask 0x0FF /* low 8 bit mask */
+#define morkDelta_kColumnMask (~ (mork_column) morkDelta_kChangeMask)
+#define morkDelta_Init(self,cl,ch) ((self) = ((cl)<<morkDelta_kShift) | (ch))
+#define morkDelta_Change(self) ((self) & morkDelta_kChangeMask)
+#define morkDelta_Column(self) ((self) >> morkDelta_kShift)
+
+class morkCell { // minimal cell format
+
+public:
+  mork_delta   mCell_Delta;   // encoding of both column and change
+  morkAtom*    mCell_Atom;    // content in this cell
+  
+public:
+  morkCell() : mCell_Atom( 0 ), mCell_Delta( 0 ) { }
+  
+  // note if ioAtom is non-nil, caller needs to call ioAtom->AddCellUse():
+  morkCell(mork_column inCol, mork_change inChange, morkAtom* ioAtom)
+  {
+    morkDelta_Init(mCell_Delta, inCol,inChange);
+    mCell_Atom = ioAtom;
+  }
+
+  // note if ioAtom is non-nil, caller needs to call ioAtom->AddCellUse():
+  void Init(mork_column inCol, mork_change inChange, morkAtom* ioAtom)
+  {
+    morkDelta_Init(mCell_Delta,inCol,inChange);
+    mCell_Atom = ioAtom;
+  }
+  
+  mork_column  GetColumn() const { return morkDelta_Column(mCell_Delta); }
+  mork_change  GetChange() const { return morkDelta_Change(mCell_Delta); }
+
+  void SetCellDirty();
+  
+  void         SetColumnAndChange(mork_column inCol, mork_change inChange)
+  { morkDelta_Init(mCell_Delta, inCol, inChange); }
+    
+  morkAtom*  GetAtom() { return mCell_Atom; }
+  
+  void       SetAtom(morkEnv* ev, morkAtom* ioAtom, morkPool* ioPool);
+  // SetAtom() "acquires" the new ioAtom if non-nil, by calling AddCellUse()
+  // to increase the refcount, and puts ioAtom into mCell_Atom.  If the old
+  // atom in mCell_Atom is non-nil, then it is "released" first by a call to
+  // CutCellUse(), and if the use count then becomes zero, then the old atom
+  // is deallocated by returning it to the pool ioPool.  (And this is
+  // why ioPool is a parameter to this method.)  Note that ioAtom can be nil
+  // to cause the cell to refer to nothing, and the old atom in mCell_Atom
+  // can also be nil, and all the atom refcounting is handled correctly.
+  //
+  // Note that if ioAtom was just created, it typically has a zero use count
+  // before calling SetAtom().  But use count is one higher after SetAtom().
+  
+  void       SetYarn(morkEnv* ev, const mdbYarn* inYarn, morkStore* ioStore);
+  
+  void       AliasYarn(morkEnv* ev, mdbYarn* outYarn) const;
+  void       GetYarn(morkEnv* ev, mdbYarn* outYarn) const;
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKCELL_ */

mozilla/db/mork/src/morkCellObject.cpp

@@ -0,0 +1,233 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKCELLOBJECT_
+#include "morkCellObject.h"
+#endif
+
+#ifndef _MORKROWOBJECT_
+#include "morkRowObject.h"
+#endif
+
+#ifndef _MORKROW_
+#include "morkRow.h"
+#endif
+
+#ifndef _MORKCELL_
+#include "morkCell.h"
+#endif
+
+#ifndef _ORKINCELL_
+#include "orkinCell.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkCellObject::CloseMorkNode(morkEnv* ev) // CloseCellObject() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseCellObject(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkCellObject::~morkCellObject() // assert CloseCellObject() executed earlier
+{
+  MORK_ASSERT(mCellObject_Row==0);
+}
+
+/*public non-poly*/
+morkCellObject::morkCellObject(morkEnv* ev, const morkUsage& inUsage,
+  nsIMdbHeap* ioHeap, morkRow* ioRow, morkCell* ioCell,
+  mork_column inCol, mork_pos inPos)
+: morkObject(ev, inUsage, ioHeap, (morkHandle*) 0)
+, mCellObject_RowObject( 0 )
+, mCellObject_Row( 0 )
+, mCellObject_Cell( 0 )
+, mCellObject_Col( inCol )
+, mCellObject_RowSeed( 0 )
+, mCellObject_Pos( (mork_u2) inPos )
+{
+  if ( ev->Good() )
+  {
+    if ( ioRow && ioCell )
+    {
+      if ( ioRow->IsRow() )
+      {
+        morkStore* store = ioRow->GetRowSpaceStore(ev);
+        if ( store )
+        {
+          morkRowObject* rowObj = ioRow->GetRowObject(ev, store);
+          if ( rowObj )
+          {
+            mCellObject_Row = ioRow;
+            mCellObject_Cell = ioCell;
+            mCellObject_RowSeed = ioRow->mRow_Seed;
+            morkRowObject::SlotStrongRowObject(rowObj, ev,
+              &mCellObject_RowObject);
+          }
+          if ( ev->Good() )
+            mNode_Derived = morkDerived_kCellObject;
+        }
+      }
+      else
+        ioRow->NonRowTypeError(ev);
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkCellObject::CloseCellObject(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      morkRowObject::SlotStrongRowObject((morkRowObject*) 0, ev,
+        &mCellObject_RowObject);
+      mCellObject_Row = 0;
+      mCellObject_Cell = 0;
+      mCellObject_RowSeed = 0;
+      this->CloseObject(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+mork_bool
+morkCellObject::ResyncWithRow(morkEnv* ev)
+{
+  morkRow* row = mCellObject_Row;
+  mork_pos pos = 0;
+  morkCell* cell = row->GetCell(ev, mCellObject_Col, &pos);
+  if ( cell )
+  {
+    mCellObject_Pos = pos;
+    mCellObject_Cell = cell;
+    mCellObject_RowSeed = row->mRow_Seed;
+  }
+  else
+  {
+    mCellObject_Cell = 0;
+    this->MissingRowColumnError(ev);
+  }
+  return ev->Good();
+}
+
+morkAtom*
+morkCellObject::GetCellAtom(morkEnv* ev) const
+{
+  morkCell* cell = mCellObject_Cell;
+  if ( cell )
+    return cell->GetAtom();
+  else
+    this->NilCellError(ev);
+    
+  return (morkAtom*) 0;
+}
+
+/*static*/ void
+morkCellObject::WrongRowObjectRowError(morkEnv* ev)
+{
+  ev->NewError("mCellObject_Row != mCellObject_RowObject->mRowObject_Row");
+}
+
+/*static*/ void
+morkCellObject::NilRowError(morkEnv* ev)
+{
+  ev->NewError("nil mCellObject_Row");
+}
+
+/*static*/ void
+morkCellObject::NilRowObjectError(morkEnv* ev)
+{
+  ev->NewError("nil mCellObject_RowObject");
+}
+
+/*static*/ void
+morkCellObject::NilCellError(morkEnv* ev)
+{
+  ev->NewError("nil mCellObject_Cell");
+}
+
+/*static*/ void
+morkCellObject::NonCellObjectTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkCellObject");
+}
+
+/*static*/ void
+morkCellObject::MissingRowColumnError(morkEnv* ev)
+{
+  ev->NewError("mCellObject_Col not in mCellObject_Row");
+}
+
+nsIMdbCell*
+morkCellObject::AcquireCellHandle(morkEnv* ev)
+{
+  nsIMdbCell* outCell = 0;
+  orkinCell* c = (orkinCell*) mObject_Handle;
+  if ( c ) // have an old handle?
+    c->AddStrongRef(ev->AsMdbEnv());
+  else // need new handle?
+  {
+    c = orkinCell::MakeCell(ev, this);
+    mObject_Handle = c;
+  }
+  if ( c )
+    outCell = c;
+  return outCell;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkCellObject.h

@@ -0,0 +1,107 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKCELLOBJECT_
+#define _MORKCELLOBJECT_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kCellObject  /*i*/ 0x634F /* ascii 'cO' */
+
+class morkCellObject : public morkObject { // blob attribute in column scope
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*     mNode_Heap;
+  // mork_able    mNode_Mutable; // can this node be modified?
+  // mork_load    mNode_Load;    // is this node clean or dirty?
+  // mork_base    mNode_Base;    // must equal morkBase_kNode
+  // mork_derived mNode_Derived; // depends on specific node subclass
+  // mork_access  mNode_Access;  // kOpen, kClosing, kShut, or kDead
+  // mork_usage   mNode_Usage;   // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_uses    mNode_Uses;    // refcount for strong refs
+  // mork_refs    mNode_Refs;    // refcount for strong refs + weak refs
+
+  // morkFactory* mObject_Factory;  // weak ref to suite factory
+
+public: // state is public because the entire Mork system is private
+  morkRowObject*  mCellObject_RowObject;  // strong ref to row's object
+  morkRow*        mCellObject_Row;        // cell's row if still in row object
+  morkCell*       mCellObject_Cell;       // cell in row if rowseed matches
+  mork_column     mCellObject_Col;        // col of cell last living in pos
+  mork_u2         mCellObject_RowSeed;    // copy of row's seed
+  mork_u2         mCellObject_Pos;        // position of cell in row
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseCellObject() only if open
+  virtual ~morkCellObject(); // assert that CloseCellObject() executed earlier
+  
+public: // morkCellObject construction & destruction
+  morkCellObject(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, morkRow* ioRow, morkCell* ioCell,
+    mork_column inCol, mork_pos inPos);
+  void CloseCellObject(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkCellObject(const morkCellObject& other);
+  morkCellObject& operator=(const morkCellObject& other);
+
+public: // dynamic type identification
+  mork_bool IsCellObject() const
+  { return IsNode() && mNode_Derived == morkDerived_kCellObject; }
+// } ===== end morkNode methods =====
+
+public: // other cell node methods
+
+  mork_bool ResyncWithRow(morkEnv* ev); // return ev->Good()
+  morkAtom* GetCellAtom(morkEnv* ev) const;
+
+  static void MissingRowColumnError(morkEnv* ev);
+  static void NilRowError(morkEnv* ev);
+  static void NilCellError(morkEnv* ev);
+  static void NilRowObjectError(morkEnv* ev);
+  static void WrongRowObjectRowError(morkEnv* ev);
+  static void NonCellObjectTypeError(morkEnv* ev);
+
+  nsIMdbCell* AcquireCellHandle(morkEnv* ev);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakCellObject(morkCellObject* me,
+    morkEnv* ev, morkCellObject** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongCellObject(morkCellObject* me,
+    morkEnv* ev, morkCellObject** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKCELLOBJECT_ */

mozilla/db/mork/src/morkConfig.cpp

@@ -0,0 +1,249 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKCONFIG_
+#include "morkConfig.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/* ----- ----- ----- ----- MORK_MAC ----- ----- ----- ----- */
+#ifdef MORK_MAC
+
+#include <Types.h>
+  
+  static void // copied almost verbatim from the IronDoc debugger sources:
+  mork_mac_break_string(register const char* inMessage) /*i*/
+  {
+    Str255 pascalStr; // to hold Pascal string version of inMessage
+    mork_u4 length = XP_STRLEN(inMessage);
+    
+    // if longer than maximum 255 bytes, just copy 255 bytes worth
+    pascalStr[ 0 ] = (length > 255)? 255 : length;
+    if ( length ) // anything to copy? */
+    {
+      register mork_u1* p = ((mork_u1*) &pascalStr) + 1; // after length byte
+      register mork_u1* end = p + length; // one past last byte to copy
+      while ( p < end ) // more bytes to copy?
+      {
+        register int c = (mork_u1) *inMessage++;
+        if ( c == ';' ) // c is the MacsBug ';' metacharacter?
+          c = ':'; // change to ':', rendering harmless in a MacsBug context
+        *p++ = (mork_u1) c;
+      }
+    }
+    
+    DebugStr(pascalStr); /* call Mac debugger entry point */
+  }
+#endif /*MORK_MAC*/
+/* ----- ----- ----- ----- MORK_MAC ----- ----- ----- ----- */
+
+void mork_assertion_signal(const char* inMessage)
+{
+#ifdef XP_MAC
+  mork_mac_break_string(inMessage);
+#endif /*XP_MAC*/
+
+#ifdef MORK_WIN
+  // asm { int 3 }
+  NS_ASSERTION(0, inMessage);
+#endif /*MORK_WIN*/
+}
+
+#ifdef MORK_PROVIDE_STDLIB
+
+MORK_LIB_IMPL(mork_i4)
+mork_memcmp(const void* inOne, const void* inTwo, mork_size inSize)
+{
+  register const mork_u1* t = (const mork_u1*) inTwo;
+  register const mork_u1* s = (const mork_u1*) inOne;
+  const mork_u1* end = s + inSize;
+  register mork_i4 delta;
+  
+  while ( s < end )
+  {
+    delta = ((mork_i4) *s) - ((mork_i4) *t);
+    if ( delta )
+      return delta;
+    else
+    {
+      ++t;
+      ++s;
+    }
+  }
+  return 0;
+}
+
+MORK_LIB_IMPL(void)
+mork_memcpy(void* outDst, const void* inSrc, mork_size inSize)
+{
+  register mork_u1* d = (mork_u1*) outDst;
+  mork_u1* end = d + inSize;
+  register const mork_u1* s = ((const mork_u1*) inSrc);
+  
+  while ( inSize >= 8 )
+  {
+    *d++ = *s++;
+    *d++ = *s++;
+    *d++ = *s++;
+    *d++ = *s++;
+    
+    *d++ = *s++;
+    *d++ = *s++;
+    *d++ = *s++;
+    *d++ = *s++;
+    
+    inSize -= 8;
+  }
+  
+  while ( d < end )
+    *d++ = *s++;
+}
+
+MORK_LIB_IMPL(void)
+mork_memmove(void* outDst, const void* inSrc, mork_size inSize)
+{
+  register mork_u1* d = (mork_u1*) outDst;
+  register const mork_u1* s = (const mork_u1*) inSrc;
+  if ( d != s && inSize ) // copy is necessary?
+  {
+    const mork_u1* srcEnd = s + inSize; // one past last source byte
+    
+    if ( d > s && d < srcEnd ) // overlap? need to copy backwards?
+    {
+      s = srcEnd; // start one past last source byte
+      d += inSize; // start one past last dest byte
+      mork_u1* dstBegin = d; // last byte to write is first in dest range
+      while ( d - dstBegin >= 8 )
+      {
+        *--d = *--s;
+        *--d = *--s;
+        *--d = *--s;
+        *--d = *--s;
+        
+        *--d = *--s;
+        *--d = *--s;
+        *--d = *--s;
+        *--d = *--s;
+      }
+      while ( d > dstBegin )
+        *--d = *--s;
+    }
+    else // can copy forwards without any overlap
+    {
+      mork_u1* dstEnd = d + inSize;
+      while ( dstEnd - d >= 8 )
+      {
+        *d++ = *s++;
+        *d++ = *s++;
+        *d++ = *s++;
+        *d++ = *s++;
+        
+        *d++ = *s++;
+        *d++ = *s++;
+        *d++ = *s++;
+        *d++ = *s++;
+      }
+      while ( d < dstEnd )
+        *d++ = *s++;
+    }
+  }
+}
+
+MORK_LIB_IMPL(void)
+mork_memset(void* outDst, int inByte, mork_size inSize)
+{
+  register mork_u1* d = (mork_u1*) outDst;
+  mork_u1* end = d + inSize;
+  while ( d < end )
+    *d++ = (mork_u1) inByte;
+}
+
+MORK_LIB_IMPL(void)
+mork_strcpy(void* outDst, const void* inSrc)
+{
+  // back up one first to support preincrement
+  register mork_u1* d = ((mork_u1*) outDst) - 1;
+  register const mork_u1* s = ((const mork_u1*) inSrc) - 1;
+  while ( ( *++d = *++s ) != 0 )
+    /* empty */;
+}
+
+MORK_LIB_IMPL(mork_i4)
+mork_strcmp(const void* inOne, const void* inTwo)
+{
+  register const mork_u1* t = (const mork_u1*) inTwo;
+  register const mork_u1* s = ((const mork_u1*) inOne);
+  register mork_i4 a;
+  register mork_i4 b;
+  register mork_i4 delta;
+  
+  do
+  {
+    a = (mork_i4) *s++;
+    b = (mork_i4) *t++;
+    delta = a - b;
+  }
+  while ( !delta && a && b );
+  
+  return delta;
+}
+
+MORK_LIB_IMPL(mork_i4)
+mork_strncmp(const void* inOne, const void* inTwo, mork_size inSize)
+{
+  register const mork_u1* t = (const mork_u1*) inTwo;
+  register const mork_u1* s = (const mork_u1*) inOne;
+  const mork_u1* end = s + inSize;
+  register mork_i4 delta;
+  register mork_i4 a;
+  register mork_i4 b;
+  
+  while ( s < end )
+  {
+    a = (mork_i4) *s++;
+    b = (mork_i4) *t++;
+    delta = a - b;
+    if ( delta || !a || !b )
+      return delta;
+  }
+  return 0;
+}
+
+MORK_LIB_IMPL(mork_size)
+mork_strlen(const void* inString)
+{
+  // back up one first to support preincrement
+  register const mork_u1* s = ((const mork_u1*) inString) - 1;
+  while ( *++s ) // preincrement is cheapest
+    /* empty */;
+  
+  return s - ((const mork_u1*) inString); // distance from original address
+}
+
+#endif /*MORK_PROVIDE_STDLIB*/
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkConfig.h

@@ -0,0 +1,171 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKCONFIG_
+#define _MORKCONFIG_ 1
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// { %%%%% begin debug mode options in Mork %%%%%
+#define MORK_DEBUG 1
+// } %%%%% end debug mode options in Mork %%%%%
+
+#ifdef MORK_DEBUG
+#define MORK_MAX_CODE_COMPILE 1
+#endif
+
+// { %%%%% begin platform defs peculiar to Mork %%%%%
+#ifdef XP_MAC
+#define MORK_MAC 1
+#endif
+
+#ifdef XP_OS2
+#define MORK_OS2 1
+#endif
+
+#ifdef XP_PC
+#define MORK_WIN 1
+#define XP_WIN 1
+#endif
+
+#ifdef XP_UNIX
+#define MORK_UNIX 1
+#endif
+// } %%%%% end platform defs peculiar to Mork %%%%%
+
+#if defined (MORK_WIN) || defined(MORK_UNIX) 
+#include "stdio.h" 
+#include "ctype.h" 
+#include "errno.h" 
+#include "string.h" 
+#include "memory.h" 
+#include "nsDebug.h" 
+
+#define MORK_ISPRINT(c) isprint(c) 
+
+#define MORK_FILETELL(file) ftell(file) 
+#define MORK_FILESEEK(file, where, how) fseek(file, where, how) 
+#define MORK_FILEREAD(outbuf, insize, file) fread(outbuf, insize, 1, file) 
+#define MORK_FILEFLUSH(file) fflush(file) 
+#define MORK_FILECLOSE(file) fclose(file) 
+#endif /*MORK_WIN*/
+
+#ifdef MORK_MAC 
+#include "xp_file.h" 
+#include "ctype.h" 
+
+#define MORK_ISPRINT(c) isprint(c) 
+
+#define MORK_FILETELL(file) XP_FileTell(file) 
+#define MORK_FILESEEK(file, where, how) XP_FileSeek(file, where, how) 
+#define MORK_FILEREAD(outbuf, insize, file) XP_FileRead(outbuf, insize, file) 
+#define MORK_FILEFLUSH(file) XP_FileFlush(file) 
+#define MORK_FILECLOSE(file) XP_FileClose(file) 
+#endif /*MORK_MAC*/
+
+/* ===== ===== ===== ===== line characters ===== ===== ===== ===== */
+#define mork_kCR '\015'
+#define mork_kLF '\012'
+#define mork_kVTAB '\013'
+#define mork_kFF '\014'
+#define mork_kTAB '\011'
+#define mork_kCRLF "\015\012"     /* A CR LF equivalent string */
+
+#ifdef MORK_MAC
+#  define mork_kNewline             "\015"
+#  define mork_kNewlineSize 1
+#else
+#  if defined(MORK_WIN) || defined(MORK_OS2)
+#    define mork_kNewline           "\015\012"
+#    define mork_kNewlineSize       2
+#  else
+#    ifdef MORK_UNIX
+#      define mork_kNewline         "\012"
+#      define mork_kNewlineSize     1
+#    endif /* MORK_UNIX */
+#  endif /* MORK_WIN */
+#endif /* MORK_MAC */
+
+// { %%%%% begin assertion macro %%%%%
+extern void mork_assertion_signal(const char* inMessage);
+#define MORK_ASSERTION_SIGNAL(Y) mork_assertion_signal(Y)
+#define MORK_ASSERT(X) if (!(X)) MORK_ASSERTION_SIGNAL(#X)
+// } %%%%% end assertion macro %%%%%
+
+#define MORK_LIB(return) return /*API return declaration*/
+#define MORK_LIB_IMPL(return) return /*implementation return declaration*/
+
+// { %%%%% begin standard c utility methods %%%%%
+/*define MORK_USE_XP_STDLIB 1*/
+
+#ifdef MORK_MAC 
+#define MORK_PROVIDE_STDLIB 1
+#endif /*MORK_MAC*/
+
+#ifdef MORK_WIN 
+#define MORK_USE_C_STDLIB 1
+#endif /*MORK_WIN*/
+
+#ifdef MORK_USE_C_STDLIB
+#define MORK_MEMCMP(src1,src2,size)  memcmp(src1,src2,size)
+#define MORK_MEMCPY(dest,src,size)   memcpy(dest,src,size)
+#define MORK_MEMMOVE(dest,src,size)  memmove(dest,src,size)
+#define MORK_MEMSET(dest,byte,size)  memset(dest,byte,size)
+#define MORK_STRCPY(dest,src)        strcpy(dest,src)
+#define MORK_STRCMP(one,two)         strcmp(one,two)
+#define MORK_STRNCMP(one,two,length) strncmp(one,two,length)
+#define MORK_STRLEN(string)          strlen(string)
+#endif /*MORK_USE_C_STDLIB*/
+
+#ifdef MORK_PROVIDE_STDLIB
+MORK_LIB(mork_i4) mork_memcmp(const void* a, const void* b, mork_size inSize);
+MORK_LIB(void) mork_memcpy(void* dst, const void* src, mork_size inSize);
+MORK_LIB(void) mork_memmove(void* dst, const void* src, mork_size inSize);
+MORK_LIB(void) mork_memset(void* dst, int inByte, mork_size inSize);
+MORK_LIB(void) mork_strcpy(void* dst, const void* src);
+MORK_LIB(mork_i4) mork_strcmp(const void* a, const void* b);
+MORK_LIB(mork_i4) mork_strncmp(const void* a, const void* b, mork_size inSize);
+MORK_LIB(mork_size) mork_strlen(const void* inString);
+
+#define MORK_MEMCMP(src1,src2,size)  mork_memcmp(src1,src2,size)
+#define MORK_MEMCPY(dest,src,size)   mork_memcpy(dest,src,size)
+#define MORK_MEMMOVE(dest,src,size)  mork_memmove(dest,src,size)
+#define MORK_MEMSET(dest,byte,size)  mork_memset(dest,byte,size)
+#define MORK_STRCPY(dest,src)        mork_strcpy(dest,src)
+#define MORK_STRCMP(one,two)         mork_strcmp(one,two)
+#define MORK_STRNCMP(one,two,length) mork_strncmp(one,two,length)
+#define MORK_STRLEN(string)          mork_strlen(string)
+#endif /*MORK_PROVIDE_STDLIB*/
+
+#ifdef MORK_USE_XP_STDLIB
+#define MORK_MEMCMP(src1,src2,size)  XP_MEMCMP(src1,src2,size)
+#define MORK_MEMCPY(dest,src,size)   XP_MEMCPY(dest,src,size)
+#define MORK_MEMMOVE(dest,src,size)  XP_MEMMOVE(dest,src,size)
+#define MORK_MEMSET(dest,byte,size)  XP_MEMSET(dest,byte,size)
+#define MORK_STRCPY(dest,src)        XP_STRCPY(dest,src)
+#define MORK_STRCMP(one,two)         XP_STRCMP(one,two)
+#define MORK_STRNCMP(one,two,length) XP_STRNCMP(one,two,length)
+#define MORK_STRLEN(string)          XP_STRLEN(string)
+#endif /*MORK_USE_XP_STDLIB*/
+
+
+// } %%%%% end standard c utility methods %%%%%
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKCONFIG_ */

mozilla/db/mork/src/morkCursor.cpp

@@ -0,0 +1,98 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKCURSOR_
+#include "morkCursor.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkCursor::CloseMorkNode(morkEnv* ev) // CloseCursor() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseCursor(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkCursor::~morkCursor() // assert CloseCursor() executed earlier
+{
+}
+
+/*public non-poly*/
+morkCursor::morkCursor(morkEnv* ev,
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap)
+: morkObject(ev, inUsage, ioHeap, (morkHandle*) 0)
+, mCursor_Seed( 0 )
+, mCursor_Pos( -1 )
+, mCursor_DoFailOnSeedOutOfSync( morkBool_kFalse )
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kCursor;
+}
+
+/*public non-poly*/ void
+morkCursor::CloseCursor(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mCursor_Seed = 0;
+      mCursor_Pos = -1;
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkCursor.h

@@ -0,0 +1,88 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKCURSOR_
+#define _MORKCURSOR_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kCursor  /*i*/ 0x4375 /* ascii 'Cu' */
+
+class morkCursor : public morkObject { // collection iterator
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*     mNode_Heap;
+  // mork_able    mNode_Mutable; // can this node be modified?
+  // mork_load    mNode_Load;    // is this node clean or dirty?
+  // mork_base    mNode_Base;    // must equal morkBase_kNode
+  // mork_derived mNode_Derived; // depends on specific node subclass
+  // mork_access  mNode_Access;  // kOpen, kClosing, kShut, or kDead
+  // mork_usage   mNode_Usage;   // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_uses    mNode_Uses;    // refcount for strong refs
+  // mork_refs    mNode_Refs;    // refcount for strong refs + weak refs
+
+  // morkFactory* mObject_Factory;  // weak ref to suite factory
+
+public: // state is public because the entire Mork system is private
+  mork_seed  mCursor_Seed;
+  mork_pos   mCursor_Pos;
+  mork_bool  mCursor_DoFailOnSeedOutOfSync;
+  mork_u1    mCursor_Pad[ 3 ]; // explicitly pad to u4 alignment
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseCursor() only if open
+  virtual ~morkCursor(); // assert that CloseCursor() executed earlier
+  
+public: // morkCursor construction & destruction
+  morkCursor(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap);
+  void CloseCursor(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkCursor(const morkCursor& other);
+  morkCursor& operator=(const morkCursor& other);
+
+public: // dynamic type identification
+  mork_bool IsCursor() const
+  { return IsNode() && mNode_Derived == morkDerived_kCursor; }
+// } ===== end morkNode methods =====
+
+public: // other cursor methods
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakCursor(morkCursor* me,
+    morkEnv* ev, morkCursor** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongCursor(morkCursor* me,
+    morkEnv* ev, morkCursor** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKCURSOR_ */

mozilla/db/mork/src/morkDeque.cpp

@@ -0,0 +1,125 @@
+/*************************************************************************
+This software is part of a public domain IronDoc source code distribution,
+and is provided on an "AS IS" basis, with all risks borne by the consumers
+or users of the IronDoc software.  There are no warranties, guarantees, or
+promises about quality of any kind; and no remedies for failure exist. 
+
+Permission is hereby granted to use this IronDoc software for any purpose
+at all, without need for written agreements, without royalty or license
+fees, and without fees or obligations of any other kind.  Anyone can use,
+copy, change and distribute this software for any purpose, and nothing is
+required, implicitly or otherwise, in exchange for this usage.
+
+You cannot apply your own copyright to this software, but otherwise you
+are encouraged to enjoy the use of this software in any way you see fit.
+However, it would be rude to remove names of developers from the code.
+(IronDoc is also known by the short name "Fe" and a longer name "Ferrum",
+which are used interchangeably with the name IronDoc in the sources.)
+*************************************************************************/
+/*
+ * File:      morkDeque.cpp
+ * Contains:  Ferrum deque (double ended queue (linked list))
+ *
+ * Copied directly from public domain IronDoc, with minor naming tweaks:
+ * Designed and written by David McCusker, but all this code is public domain.
+ * There are no warranties, no guarantees, no promises, and no remedies.
+ */
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKDEQUE_
+#include "morkDeque.h"
+#endif
+
+/*| RemoveFirst: 
+|*/
+morkLink*
+morkDeque::RemoveFirst() /*i*/
+{
+  morkLink* link = mDeque_Head.mLink_Next;
+  if ( link != &mDeque_Head )
+  {
+    (mDeque_Head.mLink_Next = link->mLink_Next)->mLink_Prev = 
+      &mDeque_Head;
+    return link;
+  }
+  return (morkLink*) 0;
+}
+
+/*| RemoveLast: 
+|*/
+morkLink*
+morkDeque::RemoveLast() /*i*/
+{
+  morkLink* link = mDeque_Head.mLink_Prev;
+  if ( link != &mDeque_Head )
+  {
+    (mDeque_Head.mLink_Prev = link->mLink_Prev)->mLink_Next = 
+      &mDeque_Head;
+    return link;
+  }
+  return (morkLink*) 0;
+}
+
+/*| At: 
+|*/
+morkLink*
+morkDeque::At(mork_pos index) const /*i*/
+  /* indexes are one based (and not zero based) */
+{ 
+  register mork_num count = 0;
+  register morkLink* link;
+  for ( link = this->First(); link; link = this->After(link) )
+  {
+    if ( ++count == index )
+      break;
+  }
+  return link;
+}
+
+/*| IndexOf: 
+|*/
+mork_pos
+morkDeque::IndexOf(const morkLink* member) const /*i*/
+  /* indexes are one based (and not zero based) */
+  /* zero means member is not in deque */
+{ 
+  register mork_num count = 0;
+  register const morkLink* link;
+  for ( link = this->First(); link; link = this->After(link) )
+  {
+    ++count;
+    if ( member == link )
+      return count;
+  }
+  return 0;
+}
+
+/*| Length: 
+|*/
+mork_num
+morkDeque::Length() const /*i*/
+{ 
+  register mork_num count = 0;
+  register morkLink* link;
+  for ( link = this->First(); link; link = this->After(link) )
+    ++count;
+  return count;
+}
+
+/*| LengthCompare: 
+|*/
+int
+morkDeque::LengthCompare(mork_num c) const /*i*/
+{ 
+  register mork_num count = 0;
+  register const morkLink* link;
+  for ( link = this->First(); link; link = this->After(link) )
+  {
+    if ( ++count > c )
+      return 1;
+  }
+  return ( count == c )? 0 : -1;
+}

mozilla/db/mork/src/morkDeque.h

@@ -0,0 +1,149 @@
+/*************************************************************************
+This software is part of a public domain IronDoc source code distribution,
+and is provided on an "AS IS" basis, with all risks borne by the consumers
+or users of the IronDoc software.  There are no warranties, guarantees, or
+promises about quality of any kind; and no remedies for failure exist. 
+
+Permission is hereby granted to use this IronDoc software for any purpose
+at all, without need for written agreements, without royalty or license
+fees, and without fees or obligations of any other kind.  Anyone can use,
+copy, change and distribute this software for any purpose, and nothing is
+required, implicitly or otherwise, in exchange for this usage.
+
+You cannot apply your own copyright to this software, but otherwise you
+are encouraged to enjoy the use of this software in any way you see fit.
+However, it would be rude to remove names of developers from the code.
+(IronDoc is also known by the short name "Fe" and a longer name "Ferrum",
+which are used interchangeably with the name IronDoc in the sources.)
+*************************************************************************/
+/*
+ * File:      morkDeque.h 
+ * Contains:  Ferrum deque (double ended queue (linked list))
+ *
+ * Copied directly from public domain IronDoc, with minor naming tweaks:
+ * Designed and written by David McCusker, but all this code is public domain.
+ * There are no warranties, no guarantees, no promises, and no remedies.
+ */
+
+#ifndef _MORKDEQUE_
+#define _MORKDEQUE_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+/*=============================================================================
+ * morkLink: linked list node embedded in objs to allow insertion in morkDeques
+ */
+
+class morkLink /*d*/ {  
+public:
+  morkLink*  mLink_Next;
+  morkLink*  mLink_Prev;
+  
+public:
+  morkLink*  Next() const { return mLink_Next; }
+  morkLink*  Prev() const { return mLink_Prev; }
+  
+  void SelfRefer() { mLink_Next = mLink_Prev = this; }
+  void Clear() { mLink_Next = mLink_Prev = 0; }
+  
+  void AddBefore(morkLink* old)
+  {
+    ((old)->mLink_Prev->mLink_Next = (this))->mLink_Prev = (old)->mLink_Prev;
+    ((this)->mLink_Next = (old))->mLink_Prev = this;
+  }
+  
+  void AddAfter(morkLink* old)
+  {
+    ((old)->mLink_Next->mLink_Prev = (this))->mLink_Next = (old)->mLink_Next;
+    ((this)->mLink_Prev = (old))->mLink_Next = this;
+  }
+  
+  void Remove()
+  {
+    (mLink_Prev->mLink_Next = mLink_Next)->mLink_Prev =  mLink_Prev;
+  }
+};
+
+/*=============================================================================
+ * morkDeque: doubly linked list modeled after VAX queue instructions
+ */
+
+class morkDeque /*d*/ {
+public:
+  morkLink  mDeque_Head;
+
+public: // construction
+  morkDeque() { mDeque_Head.SelfRefer(); }
+
+public:// methods
+  morkLink* RemoveFirst();
+
+  morkLink* RemoveLast();
+
+  morkLink* At(mork_pos index) const ; /* one-based, not zero-based */
+
+  mork_pos IndexOf(const morkLink* inMember) const; 
+    /* one-based index ; zero means member is not in deque */
+
+  mork_num Length() const;
+
+  /* the following method is more efficient for long lists: */
+  int LengthCompare(mork_num inCount) const;
+  /* -1: length < count, 0: length == count,  1: length > count */
+
+public: // inlines
+
+  mork_bool IsEmpty()const 
+  { return (mDeque_Head.mLink_Next == (morkLink*) &mDeque_Head); }
+
+  morkLink* After(const morkLink* old) const
+  { return (((old)->mLink_Next != &mDeque_Head)?
+            (old)->mLink_Next : (morkLink*) 0); }
+
+  morkLink* Before(const morkLink* old) const
+  { return (((old)->mLink_Prev != &mDeque_Head)?
+            (old)->mLink_Prev : (morkLink*) 0); }
+
+  morkLink*  First() const
+  { return ((mDeque_Head.mLink_Next != &mDeque_Head)?
+    mDeque_Head.mLink_Next : (morkLink*) 0); }
+
+  morkLink*  Last() const
+  { return ((mDeque_Head.mLink_Prev != &mDeque_Head)?
+    mDeque_Head.mLink_Prev : (morkLink*) 0); }
+    
+/*
+From IronDoc documentation for AddFirst:
++--------+   +--------+      +--------+   +--------+   +--------+
+| h.next |-->| b.next |      | h.next |-->| a.next |-->| b.next |
++--------+   +--------+  ==> +--------+   +--------+   +--------+
+| h.prev |<--| b.prev |      | h.prev |<--| a.prev |<--| b.prev |
++--------+   +--------+      +--------+   +--------+   +--------+
+*/
+
+  void AddFirst(morkLink* in) /*i*/ 
+  {
+    ( (mDeque_Head.mLink_Next->mLink_Prev = 
+      (in))->mLink_Next = mDeque_Head.mLink_Next, 
+        ((in)->mLink_Prev = &mDeque_Head)->mLink_Next = (in) );
+  }
+/*
+From IronDoc documentation for AddLast:
++--------+   +--------+      +--------+   +--------+   +--------+
+| y.next |-->| h.next |      | y.next |-->| z.next |-->| h.next |
++--------+   +--------+  ==> +--------+   +--------+   +--------+
+| y.prev |<--| h.prev |      | y.prev |<--| z.prev |<--| h.prev |
++--------+   +--------+      +--------+   +--------+   +--------+
+*/
+
+  void AddLast(morkLink* in)
+  {
+    ( (mDeque_Head.mLink_Prev->mLink_Next = 
+      (in))->mLink_Prev = mDeque_Head.mLink_Prev, 
+        ((in)->mLink_Next = &mDeque_Head)->mLink_Prev = (in) );
+  }
+};
+
+#endif /* _MORKDEQUE_ */

mozilla/db/mork/src/morkEnv.cpp

@@ -0,0 +1,406 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _ORKINENV_
+#include "orkinEnv.h"
+#endif
+
+#ifndef _MORKFACTORY_
+#include "morkFactory.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkEnv::CloseMorkNode(morkEnv* ev) /*i*/ // CloseEnv() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseEnv(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkEnv::~morkEnv() /*i*/ // assert CloseEnv() executed earlier
+{
+  MORK_ASSERT(mEnv_SelfAsMdbEnv==0);
+  MORK_ASSERT(mEnv_ErrorHook==0);
+}
+
+/*public non-poly*/
+morkEnv::morkEnv(const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+  morkFactory* ioFactory, nsIMdbHeap* ioSlotHeap)
+: morkObject(inUsage, ioHeap)
+, mEnv_Factory( ioFactory )
+, mEnv_Heap( ioSlotHeap )
+
+, mEnv_SelfAsMdbEnv( 0 )
+, mEnv_ErrorHook( 0 )
+, mEnv_HandlePool( 0 )
+  
+, mEnv_ErrorCount( 0 ) 
+, mEnv_WarningCount( 0 ) 
+
+, mEnv_ErrorCode( 0 )
+  
+, mEnv_DoTrace( morkBool_kFalse )
+, mEnv_AutoClear( morkAble_kDisabled )
+, mEnv_ShouldAbort( morkBool_kFalse )
+{
+  MORK_ASSERT(ioSlotHeap && ioFactory );
+  if ( ioSlotHeap )
+  {
+    // mEnv_Heap is NOT refcounted:
+    // nsIMdbHeap_SlotStrongHeap(ioSlotHeap, this, &mEnv_Heap);
+    
+    mEnv_HandlePool = new morkPool(morkUsage::kGlobal,
+      (nsIMdbHeap*) 0, ioSlotHeap);
+      
+    MORK_ASSERT(mEnv_HandlePool);
+    if ( mEnv_HandlePool && this->Good() )
+    {
+      mNode_Derived = morkDerived_kEnv;
+      mNode_Refs += morkEnv_kWeakRefCountEnvBonus;
+    }
+  }
+}
+
+/*public non-poly*/
+morkEnv::morkEnv(morkEnv* ev, /*i*/
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap, nsIMdbEnv* inSelfAsMdbEnv,
+  morkFactory* ioFactory, nsIMdbHeap* ioSlotHeap)
+: morkObject(ev, inUsage, ioHeap, (morkHandle*) 0)
+, mEnv_Factory( ioFactory )
+, mEnv_Heap( ioSlotHeap )
+
+, mEnv_SelfAsMdbEnv( inSelfAsMdbEnv )
+, mEnv_ErrorHook( 0 )
+, mEnv_HandlePool( 0 )
+  
+, mEnv_ErrorCount( 0 ) 
+, mEnv_WarningCount( 0 ) 
+
+, mEnv_ErrorCode( 0 )
+  
+, mEnv_DoTrace( morkBool_kFalse )
+, mEnv_AutoClear( morkAble_kDisabled )
+{
+  // $$$ do we need to refcount the inSelfAsMdbEnv nsIMdbEnv??
+  
+  if ( ioFactory && inSelfAsMdbEnv && ioSlotHeap)
+  {
+    // mEnv_Heap is NOT refcounted:
+    // nsIMdbHeap_SlotStrongHeap(ioSlotHeap, ev, &mEnv_Heap);
+
+    mEnv_HandlePool = new(*ioSlotHeap, ev) morkPool(ev, 
+      morkUsage::kHeap, ioSlotHeap, ioSlotHeap);
+      
+    MORK_ASSERT(mEnv_HandlePool);
+    if ( mEnv_HandlePool && ev->Good() )
+    {
+      mNode_Derived = morkDerived_kEnv;
+      mNode_Refs += morkEnv_kWeakRefCountEnvBonus;
+    }
+  }
+  else
+    ev->NilPointerError();
+}
+
+/*public non-poly*/ void
+morkEnv::CloseEnv(morkEnv* ev) /*i*/ // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      // $$$ release mEnv_SelfAsMdbEnv??
+      // $$$ release mEnv_ErrorHook??
+      
+      mEnv_SelfAsMdbEnv = 0;
+      mEnv_ErrorHook = 0;
+
+      // mEnv_Factory is NOT refcounted
+      
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+mork_size
+morkEnv::OidAsHex(void* outBuf, const mdbOid& inOid)
+// sprintf(buf, "%lX:^%lX", (long) inOid.mOid_Id, (long) inOid.mOid_Scope);
+{
+  mork_u1* p = (mork_u1*) outBuf;
+  mork_size idSize = this->TokenAsHex(p, inOid.mOid_Id);
+  p += idSize;
+  *p++ = ':';
+  *p++ = '^';
+  mork_size scopeSize = this->TokenAsHex(p, inOid.mOid_Scope);
+  return idSize + scopeSize + 2;
+}
+
+mork_size
+morkEnv::TokenAsHex(void* outBuf, mork_token inToken)
+  // TokenAsHex() is the same as sprintf(outBuf, "%lX", (long) inToken);
+{
+  static const char* morkEnv_kHexDigits = "0123456789ABCDEF";
+  char* p = (char*) outBuf;
+  char* end = p + 32; // write no more than 32 digits for safety
+  if ( inToken )
+  {
+    // first write all the hex digits in backwards order:
+    while ( p < end && inToken ) // more digits to write?
+    {
+      *p++ = morkEnv_kHexDigits[ inToken & 0x0F ]; // low four bits
+      inToken >>= 4; // we fervently hope this does not sign extend
+    }
+    *p = 0; // end the string with a null byte
+    char* s = (char*) outBuf; // first byte in string
+    mork_size size = p - s; // distance from start
+
+    // now reverse the string in place:
+    // note that p starts on the null byte, so we need predecrement:
+    while ( --p > s ) // need to swap another byte in the string?
+    {
+      char c = *p; // temp for swap
+      *p = *s;
+      *s++ = c; // move s forward here, and p backward in the test
+    }
+    return size;
+  }
+  else // special case for zero integer
+  {
+    *p++ = '0'; // write a zero digit
+    *p = 0; // end with a null byte
+    return 1; // one digit in hex representation
+  }
+}
+
+char*
+morkEnv::CopyString(nsIMdbHeap* ioHeap, const char* inString)
+{
+  char* outString = 0;
+  if ( ioHeap && inString )
+  {
+    mork_size size = MORK_STRLEN(inString) + 1;
+    ioHeap->Alloc(this->AsMdbEnv(), size, (void**) &outString);
+    if ( outString )
+      MORK_STRCPY(outString, inString);
+  }
+  else
+    this->NilPointerError();
+  return outString;
+}
+
+void
+morkEnv::FreeString(nsIMdbHeap* ioHeap, char* ioString)
+{
+  if ( ioHeap )
+  {
+    if ( ioString )
+      ioHeap->Free(this->AsMdbEnv(), ioString);
+  }
+  else
+    this->NilPointerError();
+}
+
+nsIMdbEnv*
+morkEnv::AcquireEnvHandle(morkEnv* ev)
+{
+  nsIMdbEnv* outEnv = 0;
+  orkinEnv* e = (orkinEnv*) mObject_Handle;
+  if ( e ) // have an old handle?
+    e->AddStrongRef(ev->AsMdbEnv());
+  else // need new handle?
+  {
+    e = orkinEnv::MakeEnv(ev, this);
+    mObject_Handle = e;
+  }
+  if ( e )
+    outEnv = e;
+  return outEnv;
+}
+
+void
+morkEnv::NewErrorAndCode(const char* inString, mork_u2 inCode)
+{
+  MORK_ASSERT(morkBool_kFalse); // get developer's attention
+
+  ++mEnv_ErrorCount;
+  mEnv_ErrorCode = (inCode)? inCode: morkEnv_kGenericError;
+  
+  if ( mEnv_ErrorHook )
+    mEnv_ErrorHook->OnErrorString(this->AsMdbEnv(), inString);
+}
+
+void
+morkEnv::NewError(const char* inString)
+{
+  MORK_ASSERT(morkBool_kFalse); // get developer's attention
+
+  ++mEnv_ErrorCount;
+  mEnv_ErrorCode = morkEnv_kGenericError;
+  
+  if ( mEnv_ErrorHook )
+    mEnv_ErrorHook->OnErrorString(this->AsMdbEnv(), inString);
+}
+
+void
+morkEnv::NewWarning(const char* inString)
+{
+  MORK_ASSERT(morkBool_kFalse); // get developer's attention
+  
+  ++mEnv_WarningCount;
+  if ( mEnv_ErrorHook )
+    mEnv_ErrorHook->OnWarningString(this->AsMdbEnv(), inString);
+}
+
+void
+morkEnv::StubMethodOnlyError()
+{
+  this->NewError("method is stub only");
+}
+
+void
+morkEnv::OutOfMemoryError()
+{
+  this->NewError("out of memory");
+}
+
+void
+morkEnv::NilPointerError()
+{
+  this->NewError("nil pointer");
+}
+
+void
+morkEnv::NewNonEnvError()
+{
+  this->NewError("non-env instance");
+}
+
+void
+morkEnv::NilEnvSlotError()
+{
+  if ( !mEnv_HandlePool || !mEnv_Factory )
+  {
+    if ( !mEnv_HandlePool )
+      this->NewError("nil mEnv_HandlePool");
+    if ( !mEnv_Factory )
+      this->NewError("nil mEnv_Factory");
+  }
+  else
+    this->NewError("unknown nil env slot");
+}
+
+
+void morkEnv::NonEnvTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkEnv");
+}
+
+void
+morkEnv::ClearMorkErrorsAndWarnings()
+{
+  mEnv_ErrorCount = 0;
+  mEnv_WarningCount = 0;
+  mEnv_ErrorCode = 0;
+  mEnv_ShouldAbort = morkBool_kFalse;
+}
+
+void
+morkEnv::AutoClearMorkErrorsAndWarnings()
+{
+  if ( this->DoAutoClear() )
+  {
+    mEnv_ErrorCount = 0;
+    mEnv_WarningCount = 0;
+    mEnv_ErrorCode = 0;
+    mEnv_ShouldAbort = morkBool_kFalse;
+  }
+}
+
+/*static*/ morkEnv*
+morkEnv::FromMdbEnv(nsIMdbEnv* ioEnv) // dynamic type checking
+{
+  morkEnv* outEnv = 0;
+  if ( ioEnv )
+  {
+    // Note this cast is expected to perform some address adjustment of the
+    // pointer, so oenv likely does not equal ioEnv.  Do not cast to void*
+    // first to force an exactly equal pointer (we tried it and it's wrong).
+    orkinEnv* oenv = (orkinEnv*) ioEnv;
+    if ( oenv->IsHandle() )
+    {
+      if ( oenv->IsOpenNode() )
+      {
+        morkEnv* ev = (morkEnv*) oenv->mHandle_Object;
+         if ( ev && ev->IsEnv() )
+        {
+          if ( ev->DoAutoClear() )
+          {
+            ev->mEnv_ErrorCount = 0;
+            ev->mEnv_WarningCount = 0;
+            ev->mEnv_ErrorCode = 0;
+          }
+          outEnv = ev;
+        }
+        else
+          MORK_ASSERT(outEnv);
+       }
+      else
+        MORK_ASSERT(outEnv);
+    }
+    else
+      MORK_ASSERT(outEnv);
+  }
+  else
+    MORK_ASSERT(outEnv);
+  return outEnv;
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkEnv.h

@@ -0,0 +1,187 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKENV_
+#define _MORKENV_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kEnv     /*i*/ 0x4576 /* ascii 'Ev' */
+
+#define morkEnv_kNoError         0 /* no error has happened */
+
+#define morkEnv_kGenericError    1 /* non-specific error code */
+#define morkEnv_kNonEnvTypeError 2 /* morkEnv::IsEnv() is false */
+
+#define morkEnv_kStubMethodOnlyError 3
+#define morkEnv_kOutOfMemoryError    4
+#define morkEnv_kNilPointerError     5
+#define morkEnv_kNewNonEnvError      6
+#define morkEnv_kNilEnvSlotError     7
+
+#define morkEnv_kBadFactoryError     8
+#define morkEnv_kBadFactoryEnvError  9
+#define morkEnv_kBadEnvError         10
+
+#define morkEnv_kNonHandleTypeError  11
+#define morkEnv_kNonOpenNodeError    12
+
+#define morkEnv_kWeakRefCountEnvBonus 16 /* try to leak all env instances */
+
+/*| morkEnv:
+|*/
+class morkEnv : public morkObject {
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*       mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+
+  // morkHandle*    mObject_Handle;   // weak ref to handle for this object
+
+public: // state is public because the entire Mork system is private
+  
+  morkFactory*      mEnv_Factory;  // NON-refcounted factory
+  nsIMdbHeap*       mEnv_Heap;     // NON-refcounted heap
+
+  nsIMdbEnv*        mEnv_SelfAsMdbEnv;
+  nsIMdbErrorHook*  mEnv_ErrorHook;
+  
+  morkPool*         mEnv_HandlePool; // pool for re-using handles
+    
+  mork_u2           mEnv_ErrorCount; 
+  mork_u2           mEnv_WarningCount; 
+  
+  mork_u4           mEnv_ErrorCode; // simple basis for mdb_err style errors
+  
+  mork_bool         mEnv_DoTrace;
+  mork_able         mEnv_AutoClear;
+  mork_bool         mEnv_ShouldAbort;
+  mork_bool         mEnv_Pad;
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseEnv() only if open
+  virtual ~morkEnv(); // assert that CloseEnv() executed earlier
+  
+public: // morkEnv construction & destruction
+  morkEnv(const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+    morkFactory* ioFactory, nsIMdbHeap* ioSlotHeap);
+  morkEnv(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap, 
+     nsIMdbEnv* inSelfAsMdbEnv, morkFactory* ioFactory,
+     nsIMdbHeap* ioSlotHeap);
+  void CloseEnv(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkEnv(const morkEnv& other);
+  morkEnv& operator=(const morkEnv& other);
+
+public: // dynamic type identification
+  mork_bool IsEnv() const
+  { return IsNode() && mNode_Derived == morkDerived_kEnv; }
+// } ===== end morkNode methods =====
+
+public: // utility env methods
+
+  mork_size TokenAsHex(void* outBuf, mork_token inToken);
+  // TokenAsHex() is the same as sprintf(outBuf, "%lX", (long) inToken);
+ 
+  mork_size OidAsHex(void* outBuf, const mdbOid& inOid);
+  // sprintf(buf, "%lX:^%lX", (long) inOid.mOid_Id, (long) inOid.mOid_Scope);
+ 
+  char* CopyString(nsIMdbHeap* ioHeap, const char* inString);
+  void  FreeString(nsIMdbHeap* ioHeap, char* ioString);
+
+public: // other env methods
+
+  nsIMdbEnv* AcquireEnvHandle(morkEnv* ev); // mObject_Handle
+
+  // alloc and free individual handles in mEnv_HandlePool:
+  morkHandleFace*  NewHandle(mork_size inSize)
+  { return mEnv_HandlePool->NewHandle(this, inSize); }
+  
+  void ZapHandle(morkHandleFace* ioHandle)
+  { mEnv_HandlePool->ZapHandle(this, ioHandle); }
+
+  void EnableAutoClear() { mEnv_AutoClear = morkAble_kEnabled; }
+  void DisableAutoClear() { mEnv_AutoClear = morkAble_kDisabled; }
+  
+  mork_bool DoAutoClear() const
+  { return mEnv_AutoClear == morkAble_kEnabled; }
+
+  void NewErrorAndCode(const char* inString, mork_u2 inCode);
+  void NewError(const char* inString);
+  void NewWarning(const char* inString);
+
+  void ClearMorkErrorsAndWarnings(); // clear both errors & warnings
+  void AutoClearMorkErrorsAndWarnings(); // clear if auto is enabled
+  
+  void StubMethodOnlyError();
+  void OutOfMemoryError();
+  void NilPointerError();
+  void NewNonEnvError();
+  void NilEnvSlotError();
+    
+  void NonEnvTypeError(morkEnv* ev);
+  
+  // canonical env convenience methods to check for presence of errors:
+  mork_bool Good() const { return ( mEnv_ErrorCount == 0 ); }
+  mork_bool Bad() const { return ( mEnv_ErrorCount != 0 ); }
+  
+  nsIMdbEnv* AsMdbEnv() { return mEnv_SelfAsMdbEnv; }
+  static morkEnv* FromMdbEnv(nsIMdbEnv* ioEnv); // dynamic type checking
+  
+  mork_u2 ErrorCode() const { return mEnv_ErrorCode; }
+  
+  mdb_err AsErr() const { return (mdb_err) mEnv_ErrorCode; }
+  //mdb_err AsErr() const { return (mdb_err) ( mEnv_ErrorCount != 0 ); }
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakEnv(morkEnv* me,
+    morkEnv* ev, morkEnv** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongEnv(morkEnv* me,
+    morkEnv* ev, morkEnv** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKENV_ */

mozilla/db/mork/src/morkFactory.cpp

@@ -0,0 +1,159 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKFACTORY_
+#include "morkFactory.h"
+#endif
+
+#ifndef _ORKINFACTORY_
+#include "orkinFactory.h"
+#endif
+
+#ifndef _ORKINHEAP_
+#include "orkinHeap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkFactory::CloseMorkNode(morkEnv* ev) /*i*/ // CloseFactory() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseFactory(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkFactory::~morkFactory() /*i*/ // assert CloseFactory() executed earlier
+{
+  MORK_ASSERT(mFactory_Env.IsShutNode());
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkFactory::morkFactory() // uses orkinHeap
+: morkObject(morkUsage::kGlobal, (nsIMdbHeap*) 0)
+, mFactory_Heap()
+, mFactory_Env(morkUsage::kMember, (nsIMdbHeap*) 0, this,
+  new orkinHeap())
+{
+  if ( mFactory_Env.Good() )
+  {
+    mNode_Derived = morkDerived_kFactory;
+    mNode_Refs += morkFactory_kWeakRefCountBonus;
+  }
+}
+
+/*public non-poly*/
+morkFactory::morkFactory(nsIMdbHeap* ioHeap)
+: morkObject(morkUsage::kHeap, ioHeap)
+, mFactory_Heap()
+, mFactory_Env(morkUsage::kMember, (nsIMdbHeap*) 0, this, ioHeap)
+{
+  if ( mFactory_Env.Good() )
+  {
+    mNode_Derived = morkDerived_kFactory;
+    mNode_Refs += morkFactory_kWeakRefCountBonus;
+  }
+}
+
+/*public non-poly*/
+morkFactory::morkFactory(morkEnv* ev, /*i*/
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap)
+: morkObject(ev, inUsage, ioHeap, (morkHandle*) 0)
+, mFactory_Env(morkUsage::kMember, (nsIMdbHeap*) 0, this, ioHeap)
+, mFactory_Heap()
+{
+  if ( ev->Good() )
+  {
+    mNode_Derived = morkDerived_kFactory;
+    mNode_Refs += morkFactory_kWeakRefCountBonus;
+  }
+}
+
+/*public non-poly*/ void
+morkFactory::CloseFactory(morkEnv* ev) /*i*/ // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mFactory_Env.CloseMorkNode(ev);
+      this->CloseObject(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+nsIMdbFactory*
+morkFactory::AcquireFactoryHandle(morkEnv* ev) // mObject_Handle
+{
+  nsIMdbFactory* outFactory = 0;
+  orkinFactory* f = (orkinFactory*) mObject_Handle;
+  if ( f ) // have an old handle?
+    f->AddStrongRef(ev->AsMdbEnv());
+  else // need new handle?
+  {
+    f = orkinFactory::MakeFactory(ev, this);
+    mObject_Handle = f;
+  }
+  if ( f )
+    outFactory = f;
+  return outFactory;
+}
+
+void
+morkFactory::NonFactoryTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkFactory");
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkFactory.h

@@ -0,0 +1,117 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKFACTORY_
+#define _MORKFACTORY_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+#ifndef _ORKINHEAP_
+#include "orkinHeap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+class nsIMdbFactory;
+
+#define morkDerived_kFactory  /*i*/ 0x4663 /* ascii 'Fc' */
+#define morkFactory_kWeakRefCountBonus 16 /* try to leak all factories */
+
+/*| morkFactory: 
+|*/
+class morkFactory : public morkObject { // nsIMdbObject
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*     mNode_Heap;
+  // mork_able    mNode_Mutable; // can this node be modified?
+  // mork_load    mNode_Load;    // is this node clean or dirty?
+  // mork_base    mNode_Base;    // must equal morkBase_kNode
+  // mork_derived mNode_Derived; // depends on specific node subclass
+  // mork_access  mNode_Access;  // kOpen, kClosing, kShut, or kDead
+  // mork_usage   mNode_Usage;   // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_uses    mNode_Uses;    // refcount for strong refs
+  // mork_refs    mNode_Refs;    // refcount for strong refs + weak refs
+
+  // morkHandle*  mObject_Handle;   // weak ref to handle for this object
+
+public: // state is public because the entire Mork system is private
+
+  morkEnv        mFactory_Env; // private env instance used internally
+  orkinHeap      mFactory_Heap;
+  
+// { ===== begin morkNode interface =====
+public: // morkFactory virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseFactory() only if open
+  virtual ~morkFactory(); // assert that CloseFactory() executed earlier
+  
+public: // morkYarn construction & destruction
+  morkFactory(); // uses orkinHeap
+  morkFactory(nsIMdbHeap* ioHeap); // caller supplied heap
+  morkFactory(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap);
+  void CloseFactory(morkEnv* ev); // called by CloseMorkNode();
+  
+  
+public: // morkNode memory management operators
+  void* operator new(size_t inSize)
+  { return ::operator new(inSize); }
+  
+  void* operator new(size_t inSize, nsIMdbHeap& ioHeap, morkEnv* ev)
+  { return morkNode::MakeNew(inSize, ioHeap, ev); }
+  
+  void operator delete(void* ioAddress)
+  { morkNode::OnDeleteAssert(ioAddress); }
+  // do NOT call delete on morkNode instances.  Call ZapOld() instead.
+
+private: // copying is not allowed
+  morkFactory(const morkFactory& other);
+  morkFactory& operator=(const morkFactory& other);
+
+public: // dynamic type identification
+  mork_bool IsFactory() const
+  { return IsNode() && mNode_Derived == morkDerived_kFactory; }
+// } ===== end morkNode methods =====
+
+public: // other factory methods
+
+  nsIMdbFactory* AcquireFactoryHandle(morkEnv* ev); // mObject_Handle
+  
+  void NonFactoryTypeError(morkEnv* ev);
+  
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakFactory(morkFactory* me,
+    morkEnv* ev, morkFactory** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongFactory(morkFactory* me,
+    morkEnv* ev, morkFactory** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKFACTORY_ */

mozilla/db/mork/src/morkFile.cpp

@@ -0,0 +1,716 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKFILE_
+#include "morkFile.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkFile::CloseMorkNode(morkEnv* ev) // CloseFile() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseFile(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkFile::~morkFile() // assert CloseFile() executed earlier
+{
+  MORK_ASSERT(mFile_Frozen==0);
+  MORK_ASSERT(mFile_DoTrace==0);
+  MORK_ASSERT(mFile_IoOpen==0);
+  MORK_ASSERT(mFile_Active==0);
+}
+
+/*public non-poly*/
+morkFile::morkFile(morkEnv* ev, const morkUsage& inUsage, 
+  nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+: morkNode(ev, inUsage, ioHeap)
+, mFile_Frozen( 0 )
+, mFile_DoTrace( 0 )
+, mFile_IoOpen( 0 )
+, mFile_Active( 0 )
+
+, mFile_SlotHeap( 0 )
+, mFile_Name( 0 )
+{
+  if ( ev->Good() )
+  {
+    if ( ioSlotHeap )
+    {
+      nsIMdbHeap_SlotStrongHeap(ioSlotHeap, ev, &mFile_SlotHeap);
+      if ( ev->Good() )
+        mNode_Derived = morkDerived_kFile;
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkFile::CloseFile(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mFile_Frozen = 0;
+      mFile_DoTrace = 0;
+      mFile_IoOpen = 0;
+      mFile_Active = 0;
+      
+      if ( mFile_Name )
+        this->SetFileName(ev, (const char*) 0);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*virtual*/ void
+morkFile::BecomeTrunk(morkEnv* ev)
+  // If this file is a file version branch created by calling AcquireBud(),
+  // BecomeTrunk() causes this file's content to replace the original
+  // file's content, typically by assuming the original file's identity.
+  // This default implementation of BecomeTrunk() does nothing, and this
+  // is appropriate behavior for files which are not branches, and is
+  // also the right behavior for files returned from AcquireBud() which are
+  // in fact the original file that has been truncated down to zero length.
+{
+  this->Flush(ev);
+}
+
+/*static*/ morkFile*
+morkFile::OpenOldFile(morkEnv* ev, nsIMdbHeap* ioHeap,
+  const char* inFilePath, mork_bool inFrozen)
+  // Choose some subclass of morkFile to instantiate, in order to read
+  // (and write if not frozen) the file known by inFilePath.  The file
+  // returned should be open and ready for use, and presumably positioned
+  // at the first byte position of the file.  The exact manner in which
+  // files must be opened is considered a subclass specific detail, and
+  // other portions or Mork source code don't want to know how it's done.
+{
+  return morkStdioFile::OpenOldStdioFile(ev, ioHeap, inFilePath, inFrozen);
+}
+
+/*static*/ morkFile*
+morkFile::CreateNewFile(morkEnv* ev, nsIMdbHeap* ioHeap,
+  const char* inFilePath)
+  // Choose some subclass of morkFile to instantiate, in order to read
+  // (and write if not frozen) the file known by inFilePath.  The file
+  // returned should be created and ready for use, and presumably positioned
+  // at the first byte position of the file.  The exact manner in which
+  // files must be opened is considered a subclass specific detail, and
+  // other portions or Mork source code don't want to know how it's done.
+{
+  return morkStdioFile::CreateNewStdioFile(ev, ioHeap, inFilePath);
+}
+
+void
+morkFile::NewMissingIoError(morkEnv* ev) const
+{
+  ev->NewError("file missing io");
+}
+
+/*static*/ void
+morkFile::NilSlotHeapError(morkEnv* ev)
+{
+  ev->NewError("nil mFile_SlotHeap");
+}
+
+/*static*/ void
+morkFile::NilFileNameError(morkEnv* ev)
+{
+  ev->NewError("nil mFile_Name");
+}
+
+void
+morkFile::SetFileName(morkEnv* ev, const char* inName) // inName can be nil
+{
+  nsIMdbHeap* heap = mFile_SlotHeap;
+  if ( heap )
+  {
+    char* name = mFile_Name;
+    if ( name )
+    {
+      mFile_Name = 0;
+      ev->FreeString(heap, name);
+    }
+    if ( ev->Good() && inName )
+      mFile_Name = ev->CopyString(heap, inName);
+  }
+  else
+    this->NilSlotHeapError(ev);
+}
+
+void
+morkFile::NewFileDownError(morkEnv* ev) const
+// call NewFileDownError() when either IsOpenAndActiveFile()
+// is false, or when IsOpenActiveAndMutableFile() is false.
+{
+  if ( this->IsOpenNode() )
+  {
+    if ( this->FileActive() )
+    {
+      if ( this->FileFrozen() )
+      {
+        ev->NewError("file frozen");
+      }
+      else
+        ev->NewError("unknown file problem");
+    }
+    else
+      ev->NewError("file not active");
+  }
+  else
+    ev->NewError("file not open");
+}
+
+void
+morkFile::NewFileErrnoError(morkEnv* ev) const
+// call NewFileErrnoError() to convert std C errno into AB fault
+{
+  ev->NewError("errno"); // maybe pass value of strerror() instead
+}
+
+// ````` ````` ````` ````` newlines ````` ````` ````` `````  
+
+#ifdef MORK_MAC
+       static const char* morkFile_kNewlines = 
+       "\015\015\015\015\015\015\015\015\015\015\015\015\015\015\015\015";
+#      define morkFile_kNewlinesCount 16
+#else
+#  if defined(MORK_WIN) || defined(MORK_OS2)
+       static const char* morkFile_kNewlines = 
+       "\015\012\015\012\015\012\015\012\015\012\015\012\015\012\015\012";
+#    define morkFile_kNewlinesCount 8
+#  else
+#    ifdef MORK_UNIX
+       static const char* morkFile_kNewlines = 
+       "\012\012\012\012\012\012\012\012\012\012\012\012\012\012\012\012";
+#      define morkFile_kNewlinesCount 16
+#    endif /* MORK_UNIX */
+#  endif /* MORK_WIN */
+#endif /* MORK_MAC */
+
+mork_size
+morkFile::WriteNewlines(morkEnv* ev, mork_count inNewlines)
+  // WriteNewlines() returns the number of bytes written.
+{
+  mork_size outSize = 0;
+  while ( inNewlines && ev->Good() ) // more newlines to write?
+  {
+    mork_u4 quantum = inNewlines;
+    if ( quantum > morkFile_kNewlinesCount )
+      quantum = morkFile_kNewlinesCount;
+
+    mork_size quantumSize = quantum * mork_kNewlineSize;
+    this->Write(ev, morkFile_kNewlines, quantumSize);
+    outSize += quantumSize;
+    inNewlines -= quantum;
+  }
+  return outSize;
+}
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkStdioFile::CloseMorkNode(morkEnv* ev) // CloseStdioFile() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseStdioFile(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkStdioFile::~morkStdioFile() // assert CloseStdioFile() executed earlier
+{
+  MORK_ASSERT(mStdioFile_File==0);
+}
+
+/*public non-poly*/ void
+morkStdioFile::CloseStdioFile(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      if ( mStdioFile_File && this->FileActive() && this->FileIoOpen() )
+      {
+        this->CloseStdio(ev);
+      }
+      
+      mStdioFile_File = 0;
+      
+      this->CloseFile(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+// compatible with the morkFile::MakeFile() entry point
+
+/*static*/ morkStdioFile* 
+morkStdioFile::OpenOldStdioFile(morkEnv* ev, nsIMdbHeap* ioHeap,
+  const char* inFilePath, mork_bool inFrozen)
+{
+  morkStdioFile* outFile = 0;
+  if ( ioHeap && inFilePath )
+  {
+    const char* mode = (inFrozen)? "rb" : "wb";
+    outFile = new(*ioHeap, ev)
+      morkStdioFile(ev, morkUsage::kHeap, ioHeap, ioHeap, inFilePath, mode); 
+      
+    if ( outFile )
+    {
+      outFile->SetFileFrozen(inFrozen);
+    }
+  }
+  else
+    ev->NilPointerError();
+  
+  return outFile;
+}
+
+/*static*/ morkStdioFile* 
+morkStdioFile::CreateNewStdioFile(morkEnv* ev, nsIMdbHeap* ioHeap,
+  const char* inFilePath)
+{
+  morkStdioFile* outFile = 0;
+  if ( ioHeap && inFilePath )
+  {
+    const char* mode = "wb+";
+    outFile = new(*ioHeap, ev)
+      morkStdioFile(ev, morkUsage::kHeap, ioHeap, ioHeap, inFilePath, mode); 
+  }
+  else
+    ev->NilPointerError();
+
+  return outFile;
+}
+
+
+/*public virtual*/ void
+morkStdioFile:: BecomeTrunk(morkEnv* ev)
+  // If this file is a file version branch created by calling AcquireBud(),
+  // BecomeTrunk() causes this file's content to replace the original
+  // file's content, typically by assuming the original file's identity.
+{
+  this->Flush(ev);
+}
+
+/*public virtual*/ morkFile*
+morkStdioFile::AcquireBud(morkEnv* ev, nsIMdbHeap* ioHeap)
+  // AcquireBud() starts a new "branch" version of the file, empty of content,
+  // so that a new version of the file can be written.  This new file
+  // can later be told to BecomeTrunk() the original file, so the branch
+  // created by budding the file will replace the original file.  Some
+  // file subclasses might initially take the unsafe but expedient
+  // approach of simply truncating this file down to zero length, and
+  // then returning the same morkFile pointer as this, with an extra
+  // reference count increment.  Note that the caller of AcquireBud() is
+  // expected to eventually call CutStrongRef() on the returned file
+  // in order to release the strong reference.  High quality versions
+  // of morkFile subclasses will create entirely new files which later
+  // are renamed to become the old file, so that better transactional
+  // behavior is exhibited by the file, so crashes protect old files.
+  // Note that AcquireBud() is an illegal operation on readonly files.
+{
+  morkFile* outFile = 0;
+  if ( this->IsOpenAndActiveFile() )
+  {
+    FILE* file = (FILE*) mStdioFile_File;
+    if ( file )
+    {
+//#ifdef MORK_WIN
+//      truncate(file, /*eof*/ 0);
+//#else /*MORK_WIN*/
+      char* name = mFile_Name;
+      if ( name )
+      {
+        if ( MORK_FILECLOSE(file) >= 0 )
+        {
+          this->SetFileActive(morkBool_kFalse);
+          this->SetFileIoOpen(morkBool_kFalse);
+          mStdioFile_File = 0;
+          
+          file = fopen(name, "wb+"); // open for write, discarding old content
+          if ( file )
+          {
+            mStdioFile_File = file;
+            this->SetFileActive(morkBool_kTrue);
+            this->SetFileIoOpen(morkBool_kTrue);
+            this->SetFileFrozen(morkBool_kFalse);
+          }
+          else
+            this->new_stdio_file_fault(ev);
+        }
+        else
+          this->new_stdio_file_fault(ev);
+      }
+      else
+        this->NilFileNameError(ev);
+      
+//#endif /*MORK_WIN*/
+
+      if ( ev->Good() && this->AddStrongRef(ev) )
+        outFile = this;
+    }
+    else this->NewMissingIoError(ev);
+  }
+  else this->NewFileDownError(ev);
+  
+  return outFile;
+}
+
+/*public virtual*/ mork_pos
+morkStdioFile::Length(morkEnv* ev) const
+{
+  mork_pos outPos = 0;
+  
+  if ( this->IsOpenAndActiveFile() )
+  {
+    FILE* file = (FILE*) mStdioFile_File;
+    if ( file )
+    {
+      long start = MORK_FILETELL(file);
+      if ( start >= 0 )
+      {
+        long fore = MORK_FILESEEK(file, 0, SEEK_END);
+        if ( fore >= 0 )
+        {
+          long eof = MORK_FILETELL(file);
+          if ( eof >= 0 )
+          {
+            long back = MORK_FILESEEK(file, start, SEEK_SET);
+            if ( back >= 0 )
+              outPos = eof;
+            else
+              this->new_stdio_file_fault(ev);
+          }
+          else this->new_stdio_file_fault(ev);
+        }
+        else this->new_stdio_file_fault(ev);
+      }
+      else this->new_stdio_file_fault(ev);
+    }
+    else this->NewMissingIoError(ev);
+  }
+  else this->NewFileDownError(ev);
+
+  return outPos;
+}
+
+/*public virtual*/ mork_pos
+morkStdioFile::Tell(morkEnv* ev) const
+{
+  mork_pos outPos = 0;
+  
+  if ( this->IsOpenAndActiveFile() )
+  {
+    FILE* file = (FILE*) mStdioFile_File;
+    if ( file )
+    {
+      long where = MORK_FILETELL(file);
+      if ( where >= 0 )
+        outPos = where;
+      else
+        this->new_stdio_file_fault(ev);
+    }
+    else this->NewMissingIoError(ev);
+  }
+  else this->NewFileDownError(ev);
+
+  return outPos;
+}
+
+/*public virtual*/ mork_size
+morkStdioFile::Read(morkEnv* ev, void* outBuf, mork_size inSize)
+{
+  mork_num outCount = 0;
+  
+  if ( this->IsOpenAndActiveFile() )
+  {
+    FILE* file = (FILE*) mStdioFile_File;
+    if ( file )
+    {
+      long count = MORK_FILEREAD(outBuf, inSize, file);
+      if ( count >= 0 )
+      {
+        outCount = (mork_num) count;
+      }
+      else this->new_stdio_file_fault(ev);
+    }
+    else this->NewMissingIoError(ev);
+  }
+  else this->NewFileDownError(ev);
+
+  return outCount;
+}
+
+/*public virtual*/ mork_pos
+morkStdioFile::Seek(morkEnv* ev, mork_pos inPos)
+{
+  mork_pos outPos = 0;
+  
+  if ( this->IsOpenOrClosingNode() && this->FileActive() )
+  {
+    FILE* file = (FILE*) mStdioFile_File;
+    if ( file )
+    {
+      long where = MORK_FILESEEK(file, inPos, SEEK_SET);
+      if ( where >= 0 )
+        outPos = inPos;
+      else
+        this->new_stdio_file_fault(ev);
+    }
+    else this->NewMissingIoError(ev);
+  }
+  else this->NewFileDownError(ev);
+
+  return outPos;
+}
+
+/*public virtual*/ mork_size
+morkStdioFile::Write(morkEnv* ev, const void* inBuf, mork_size inSize)
+{
+  mork_num outCount = 0;
+  
+  if ( this->IsOpenActiveAndMutableFile() )
+  {
+    FILE* file = (FILE*) mStdioFile_File;
+    if ( file )
+    {
+      if ( fwrite(inBuf, 1, inSize, file) >= 0 )
+        outCount = inSize;
+      else
+        this->new_stdio_file_fault(ev);
+    }
+    else this->NewMissingIoError(ev);
+  }
+  else this->NewFileDownError(ev);
+
+  return outCount;
+}
+
+/*public virtual*/ void
+morkStdioFile::Flush(morkEnv* ev)
+{
+  if ( this->IsOpenOrClosingNode() && this->FileActive() )
+  {
+    FILE* file = (FILE*) mStdioFile_File;
+    if ( file )
+    {
+      MORK_FILEFLUSH(file);
+
+    }
+    else this->NewMissingIoError(ev);
+  }
+  else this->NewFileDownError(ev);
+}
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+//protected: // protected non-poly morkStdioFile methods
+
+void
+morkStdioFile::new_stdio_file_fault(morkEnv* ev) const
+{
+  FILE* file = (FILE*) mStdioFile_File;
+
+  //  bunch of stuff not ported here
+  if ( !errno && file )
+    errno = ferror(file);
+
+  this->NewFileErrnoError(ev);
+}
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+//public: // public non-poly morkStdioFile methods
+
+
+/*public non-poly*/
+morkStdioFile::morkStdioFile(morkEnv* ev,
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+: morkFile(ev, inUsage, ioHeap, ioSlotHeap)
+, mStdioFile_File( 0 )
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kStdioFile;
+}
+
+morkStdioFile::morkStdioFile(morkEnv* ev, const morkUsage& inUsage,
+  nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap,
+  const char* inName, const char* inMode)
+  // calls OpenStdio() after construction
+: morkFile(ev, inUsage, ioHeap, ioSlotHeap)
+, mStdioFile_File( 0 )
+{
+  if ( ev->Good() )
+    this->OpenStdio(ev, inName, inMode);
+}
+
+morkStdioFile::morkStdioFile(morkEnv* ev, const morkUsage& inUsage,
+   nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap,
+   void* ioFile, const char* inName, mork_bool inFrozen)
+  // calls UseStdio() after construction
+: morkFile(ev, inUsage, ioHeap, ioSlotHeap)
+, mStdioFile_File( 0 )
+{
+  if ( ev->Good() )
+    this->UseStdio(ev, ioFile, inName, inFrozen);
+}
+
+void
+morkStdioFile::OpenStdio(morkEnv* ev, const char* inName, const char* inMode)
+  // Open a new FILE with name inName, using mode flags from inMode.
+{
+  if ( ev->Good() )
+  {
+    if ( !inMode )
+      inMode = "";
+    
+    mork_bool frozen = (*inMode == 'r'); // cursory attempt to note readonly
+    
+    if ( this->IsOpenNode() )
+    {
+      if ( !this->FileActive() )
+      {
+        this->SetFileIoOpen(morkBool_kFalse);
+        if ( inName && *inName )
+        {
+          this->SetFileName(ev, inName);
+          if ( ev->Good() )
+          {
+            FILE* file = fopen(inName, inMode);
+            if ( file )
+            {
+              mStdioFile_File = file;
+              this->SetFileActive(morkBool_kTrue);
+              this->SetFileIoOpen(morkBool_kTrue);
+              this->SetFileFrozen(frozen);
+            }
+            else
+              this->new_stdio_file_fault(ev);
+          }
+        }
+        else ev->NewError("no file name");
+      }
+      else ev->NewError("file already active");
+    }
+    else this->NewFileDownError(ev);
+  }
+}
+
+void
+morkStdioFile::UseStdio(morkEnv* ev, void* ioFile, const char* inName,
+  mork_bool inFrozen)
+  // Use an existing file, like stdin/stdout/stderr, which should not
+  // have the io stream closed when the file is closed.  The ioFile
+  // parameter must actually be of type FILE (but we don't want to make
+  // this header file include the stdio.h header file).
+{
+  if ( ev->Good() )
+  {
+    if ( this->IsOpenNode() )
+    {
+      if ( !this->FileActive() )
+      {
+        if ( ioFile )
+        {
+          this->SetFileIoOpen(morkBool_kFalse);
+          this->SetFileName(ev, inName);
+          if ( ev->Good() )
+          {
+            mStdioFile_File = ioFile;
+            this->SetFileActive(morkBool_kTrue);
+            this->SetFileFrozen(inFrozen);
+          }
+        }
+        else
+          ev->NilPointerError();
+      }
+      else ev->NewError("file already active");
+    }
+    else this->NewFileDownError(ev);
+  }
+}
+
+void
+morkStdioFile::CloseStdio(morkEnv* ev)
+  // Close the stream io if both and FileActive() and FileIoOpen(), but
+  // this does not close this instances (like CloseStdioFile() does).
+  // If stream io was made active by means of calling UseStdio(),
+  // then this method does little beyond marking the stream inactive
+  // because FileIoOpen() is false.
+{
+  if ( mStdioFile_File && this->FileActive() && this->FileIoOpen() )
+  {
+    FILE* file = (FILE*) mStdioFile_File;
+    if ( MORK_FILECLOSE(file) < 0 )
+      this->new_stdio_file_fault(ev);
+    
+    mStdioFile_File = 0;
+    this->SetFileActive(morkBool_kFalse);
+    this->SetFileIoOpen(morkBool_kFalse);
+  }
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkFile.h

@@ -0,0 +1,298 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKFILE_
+#define _MORKFILE_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/*=============================================================================
+ * morkFile: abstract file interface
+ */
+
+#define morkDerived_kFile     /*i*/ 0x4669 /* ascii 'Fi' */
+
+class morkFile /*d*/ : public morkNode { /* ````` simple file API ````` */
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+protected: // protected morkFile members (similar to public domain IronDoc)
+
+  mork_u1     mFile_Frozen;   // 'F' => file allows only read access
+  mork_u1     mFile_DoTrace;  // 'T' trace if ev->DoTrace()
+  mork_u1     mFile_IoOpen;   // 'O' => io stream is open (& needs a close)
+  mork_u1     mFile_Active;   // 'A' => file is active and usable
+  
+  nsIMdbHeap* mFile_SlotHeap; // heap for Name and other allocated slots
+  char*       mFile_Name; // can be nil if SetFileName() is never called
+  // mFile_Name convention: managed with morkEnv::CopyString()/FreeString()
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseFile() only if open
+  virtual ~morkFile(); // assert that CloseFile() executed earlier
+  
+public: // morkFile construction & destruction
+  morkFile(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+    nsIMdbHeap* ioSlotHeap);
+  void CloseFile(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkFile(const morkFile& other);
+  morkFile& operator=(const morkFile& other);
+
+public: // dynamic type identification
+  mork_bool IsFile() const
+  { return IsNode() && mNode_Derived == morkDerived_kFile; }
+// } ===== end morkNode methods =====
+    
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // public static standard file creation entry point
+
+  static morkFile* OpenOldFile(morkEnv* ev, nsIMdbHeap* ioHeap,
+    const char* inFilePath, mork_bool inFrozen);
+  // Choose some subclass of morkFile to instantiate, in order to read
+  // (and write if not frozen) the file known by inFilePath.  The file
+  // returned should be open and ready for use, and presumably positioned
+  // at the first byte position of the file.  The exact manner in which
+  // files must be opened is considered a subclass specific detail, and
+  // other portions or Mork source code don't want to know how it's done.
+
+  static morkFile* CreateNewFile(morkEnv* ev, nsIMdbHeap* ioHeap,
+    const char* inFilePath);
+  // Choose some subclass of morkFile to instantiate, in order to read
+  // (and write if not frozen) the file known by inFilePath.  The file
+  // returned should be created and ready for use, and presumably positioned
+  // at the first byte position of the file.  The exact manner in which
+  // files must be opened is considered a subclass specific detail, and
+  // other portions or Mork source code don't want to know how it's done.
+  
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // virtual morkFile methods
+  
+  virtual void BecomeTrunk(morkEnv* ev);
+  // If this file is a file version branch created by calling AcquireBud(),
+  // BecomeTrunk() causes this file's content to replace the original
+  // file's content, typically by assuming the original file's identity.
+  // This default implementation of BecomeTrunk() does nothing, and this
+  // is appropriate behavior for files which are not branches, and is
+  // also the right behavior for files returned from AcquireBud() which are
+  // in fact the original file that has been truncated down to zero length.
+
+  virtual morkFile*  AcquireBud(morkEnv* ev, nsIMdbHeap* ioHeap) = 0;
+  // AcquireBud() starts a new "branch" version of the file, empty of content,
+  // so that a new version of the file can be written.  This new file
+  // can later be told to BecomeTrunk() the original file, so the branch
+  // created by budding the file will replace the original file.  Some
+  // file subclasses might initially take the unsafe but expedient
+  // approach of simply truncating this file down to zero length, and
+  // then returning the same morkFile pointer as this, with an extra
+  // reference count increment.  Note that the caller of AcquireBud() is
+  // expected to eventually call CutStrongRef() on the returned file
+  // in order to release the strong reference.  High quality versions
+  // of morkFile subclasses will create entirely new files which later
+  // are renamed to become the old file, so that better transactional
+  // behavior is exhibited by the file, so crashes protect old files.
+  // Note that AcquireBud() is an illegal operation on readonly files.
+  
+  virtual mork_pos   Length(morkEnv* ev) const = 0; // eof
+  virtual mork_pos   Tell(morkEnv* ev) const = 0;
+  virtual mork_size  Read(morkEnv* ev, void* outBuf, mork_size inSize) = 0;
+  virtual mork_pos   Seek(morkEnv* ev, mork_pos inPos) = 0;
+  virtual mork_size  Write(morkEnv* ev, const void* inBuf, mork_size inSize) = 0;
+  virtual void       Flush(morkEnv* ev) = 0;
+    
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // non-poly morkFile methods
+  
+  mork_bool FileFrozen() const  { return mFile_Frozen == 'F'; }
+  mork_bool FileDoTrace() const { return mFile_DoTrace == 'T'; }
+  mork_bool FileIoOpen() const  { return mFile_IoOpen == 'O'; }
+  mork_bool FileActive() const  { return mFile_Active == 'A'; }
+
+  void SetFileFrozen(mork_bool b)  { mFile_Frozen = (b)? 'F' : 0; }
+  void SetFileDoTrace(mork_bool b) { mFile_DoTrace = (b)? 'T' : 0; }
+  void SetFileIoOpen(mork_bool b)  { mFile_IoOpen = (b)? 'O' : 0; }
+  void SetFileActive(mork_bool b)  { mFile_Active = (b)? 'A' : 0; }
+
+  
+  mork_bool IsOpenActiveAndMutableFile() const
+  { return ( IsOpenNode() && FileActive() && !FileFrozen() ); }
+    // call IsOpenActiveAndMutableFile() before writing a file
+  
+  mork_bool IsOpenAndActiveFile() const
+  { return ( this->IsOpenNode() && this->FileActive() ); }
+    // call IsOpenAndActiveFile() before using a file
+    
+  void SetFileName(morkEnv* ev, const char* inName); // inName can be nil
+  static void NilSlotHeapError(morkEnv* ev);
+  static void NilFileNameError(morkEnv* ev);
+    
+  void NewMissingIoError(morkEnv* ev) const;
+    
+  void NewFileDownError(morkEnv* ev) const;
+    // call NewFileDownError() when either IsOpenAndActiveFile()
+    // is false, or when IsOpenActiveAndMutableFile() is false.
+ 
+   void NewFileErrnoError(morkEnv* ev) const;
+       // call NewFileErrnoError() to convert std C errno into AB fault
+
+  mork_size WriteNewlines(morkEnv* ev, mork_count inNewlines);
+  // WriteNewlines() returns the number of bytes written.
+         
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakFile(morkFile* me,
+    morkEnv* ev, morkFile** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongFile(morkFile* me,
+    morkEnv* ev, morkFile** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+/*=============================================================================
+ * morkStdioFile: concrete file using standard C file io
+ */
+
+#define morkDerived_kStdioFile     /*i*/ 0x7346 /* ascii 'sF' */
+
+class morkStdioFile /*d*/ : public morkFile { /* `` copied from IronDoc `` */
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+protected: // protected morkStdioFile members
+
+  void* mStdioFile_File;
+  // actually type FILE*, but using opaque void* type
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseStdioFile() only if open
+  virtual ~morkStdioFile(); // assert that CloseStdioFile() executed earlier
+  
+public: // morkStdioFile construction & destruction
+  morkStdioFile(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap);
+  void CloseStdioFile(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkStdioFile(const morkStdioFile& other);
+  morkStdioFile& operator=(const morkStdioFile& other);
+
+public: // dynamic type identification
+  mork_bool IsStdioFile() const
+  { return IsNode() && mNode_Derived == morkDerived_kStdioFile; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonStdioFileTypeError(morkEnv* ev);
+    
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // compatible with the morkFile::OpenOldFile() entry point
+
+  static morkStdioFile* OpenOldStdioFile(morkEnv* ev, nsIMdbHeap* ioHeap,
+    const char* inFilePath, mork_bool inFrozen);
+
+  static morkStdioFile* CreateNewStdioFile(morkEnv* ev, nsIMdbHeap* ioHeap,
+    const char* inFilePath);
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // virtual ab_File methods
+
+  virtual void BecomeTrunk(morkEnv* ev);
+  // If this file is a file version branch created by calling AcquireBud(),
+  // BecomeTrunk() causes this file's content to replace the original
+  // file's content, typically by assuming the original file's identity.
+
+  virtual morkFile*  AcquireBud(morkEnv* ev, nsIMdbHeap* ioHeap);
+  // AcquireBud() starts a new "branch" version of the file, empty of content,
+  // so that a new version of the file can be written.  This new file
+  // can later be told to BecomeTrunk() the original file, so the branch
+  // created by budding the file will replace the original file.  Some
+  // file subclasses might initially take the unsafe but expedient
+  // approach of simply truncating this file down to zero length, and
+  // then returning the same morkFile pointer as this, with an extra
+  // reference count increment.  Note that the caller of AcquireBud() is
+  // expected to eventually call CutStrongRef() on the returned file
+  // in order to release the strong reference.  High quality versions
+  // of morkFile subclasses will create entirely new files which later
+  // are renamed to become the old file, so that better transactional
+  // behavior is exhibited by the file, so crashes protect old files.
+  // Note that AcquireBud() is an illegal operation on readonly files.
+
+  virtual mork_pos   Length(morkEnv* ev) const; // eof
+  virtual mork_pos   Tell(morkEnv* ev) const;
+  virtual mork_size  Read(morkEnv* ev, void* outBuf, mork_size inSize);
+  virtual mork_pos   Seek(morkEnv* ev, mork_pos inPos);
+  virtual mork_size  Write(morkEnv* ev, const void* inBuf, mork_size inSize);
+  virtual void       Flush(morkEnv* ev);
+    
+// ````` ````` ````` `````   ````` ````` ````` `````  
+protected: // protected non-poly morkStdioFile methods
+
+  void new_stdio_file_fault(morkEnv* ev) const;
+    
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // public non-poly morkStdioFile methods
+    
+  morkStdioFile(morkEnv* ev, const morkUsage& inUsage, 
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap,
+    const char* inName, const char* inMode);
+    // calls OpenStdio() after construction
+
+  morkStdioFile(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap,
+     void* ioFile, const char* inName, mork_bool inFrozen);
+    // calls UseStdio() after construction
+  
+  void OpenStdio(morkEnv* ev, const char* inName, const char* inMode);
+    // Open a new FILE with name inName, using mode flags from inMode.
+  
+  void UseStdio(morkEnv* ev, void* ioFile, const char* inName,
+    mork_bool inFrozen);
+    // Use an existing file, like stdin/stdout/stderr, which should not
+    // have the io stream closed when the file is closed.  The ioFile
+    // parameter must actually be of type FILE (but we don't want to make
+    // this header file include the stdio.h header file).
+    
+  void CloseStdio(morkEnv* ev);
+    // Close the stream io if both and FileActive() and FileIoOpen(), but
+    // this does not close this instances (like CloseStdioFile() does).
+    // If stream io was made active by means of calling UseStdio(),
+    // then this method does little beyond marking the stream inactive
+    // because FileIoOpen() is false.
+    
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakStdioFile(morkStdioFile* me,
+    morkEnv* ev, morkStdioFile** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongStdioFile(morkStdioFile* me,
+    morkEnv* ev, morkStdioFile** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKFILE_ */

mozilla/db/mork/src/morkHandle.cpp

@@ -0,0 +1,404 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKFACTORY_
+#include "morkFactory.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+#ifndef _MORKHANDLE_
+#include "morkHandle.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkHandle::CloseMorkNode(morkEnv* ev) // CloseHandle() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseHandle(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkHandle::~morkHandle() // assert CloseHandle() executed earlier
+{
+  MORK_ASSERT(mHandle_Env==0);
+  MORK_ASSERT(mHandle_Face==0);
+  MORK_ASSERT(mHandle_Object==0);
+  MORK_ASSERT(mHandle_Magic==0);
+}
+
+/*public non-poly*/
+morkHandle::morkHandle(morkEnv* ev, // note morkUsage is always morkUsage_kPool
+    morkHandleFace* ioFace,  // must not be nil, cookie for this handle
+    morkObject* ioObject,    // must not be nil, the object for this handle
+    mork_magic inMagic)      // magic sig to denote specific subclass
+: morkNode(ev, morkUsage::kPool, (nsIMdbHeap*) 0L)
+, mHandle_Tag( 0 )
+, mHandle_Env( ev )
+, mHandle_Face( ioFace )
+, mHandle_Object( 0 )
+, mHandle_Magic( 0 )
+{
+  if ( ioFace && ioObject )
+  {
+    if ( ev->Good() )
+    {
+      mHandle_Tag = morkHandle_kTag;
+      morkObject::SlotStrongObject(ioObject, ev, &mHandle_Object);
+      morkHandle::SlotWeakHandle(this, ev, &ioObject->mObject_Handle);
+      if ( ev->Good() )
+      {
+        mHandle_Magic = inMagic;
+        mNode_Derived = morkDerived_kHandle;
+      }
+    }
+  }
+  else
+    ev->NilPointerError();
+}
+
+/*public non-poly*/ void
+morkHandle::CloseHandle(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      morkObject* obj = mHandle_Object;
+      mork_bool objDidRefSelf = ( obj && obj->mObject_Handle == this );
+      if ( objDidRefSelf )
+        obj->mObject_Handle = 0; // drop the reference
+      
+      morkObject::SlotStrongObject((morkObject*) 0, ev, &mHandle_Object);
+      mHandle_Magic = 0;
+      // note mHandle_Tag MUST stay morkHandle_kTag for morkNode::ZapOld()
+      this->MarkShut();
+
+      if ( objDidRefSelf )
+        this->CutWeakRef(ev);
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+void morkHandle::NilFactoryError(morkEnv* ev) const
+{
+  ev->NewError("nil mHandle_Factory");
+}
+  
+void morkHandle::NilHandleObjectError(morkEnv* ev) const
+{
+  ev->NewError("nil mHandle_Object");
+}
+  
+void morkHandle::NonNodeObjectError(morkEnv* ev) const
+{
+  ev->NewError("non-node mHandle_Object");
+}
+  
+void morkHandle::NonOpenObjectError(morkEnv* ev) const
+{
+  ev->NewError("non-open mHandle_Object");
+}
+  
+void morkHandle::NewBadMagicHandleError(morkEnv* ev, mork_magic inMagic) const
+{
+  ev->NewError("wrong mHandle_Magic");
+}
+
+void morkHandle::NewDownHandleError(morkEnv* ev) const
+{
+  if ( this->IsHandle() )
+  {
+    if ( this->GoodHandleTag() )
+    {
+      if ( this->IsOpenNode() )
+        ev->NewError("unknown down morkHandle error");
+      else
+        this->NonOpenNodeError(ev);
+    }
+    else
+      ev->NewError("wrong morkHandle tag");
+  }
+  else
+    ev->NewError("non morkHandle");
+}
+
+morkObject* morkHandle::GetGoodHandleObject(morkEnv* ev,
+  mork_bool inMutable, mork_magic inMagicType) const
+{
+  morkObject* outObject = 0;
+  if ( this->IsHandle() && this->GoodHandleTag() && this->IsOpenNode() )
+  {
+    if ( !inMagicType || mHandle_Magic == inMagicType )
+    {
+      morkObject* obj = this->mHandle_Object;
+       if ( obj )
+      {
+        if ( obj->IsNode() )
+        {
+          if ( obj->IsOpenNode() )
+          {
+            if ( this->IsMutable() || !inMutable )
+              outObject = obj;
+            else
+              this->NonMutableNodeError(ev);
+          }
+          else
+            this->NonOpenObjectError(ev);
+        }
+        else
+          this->NonNodeObjectError(ev);
+      }
+      else
+        this->NilHandleObjectError(ev);
+    }
+    else
+      this->NewBadMagicHandleError(ev, inMagicType);
+  }
+  else
+    this->NewDownHandleError(ev);
+  
+  MORK_ASSERT(outObject);
+  return outObject;
+}
+
+
+morkEnv*
+morkHandle::CanUseHandle(nsIMdbEnv* mev, mork_bool inMutable,
+  mdb_err* outErr) const
+{
+  morkEnv* outEnv = 0;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if ( ev )
+  {
+    morkObject* obj = this->GetGoodHandleObject(ev, inMutable, /*magic*/ 0);
+    if ( obj )
+    {
+      outEnv = ev;
+    }
+    *outErr = ev->AsErr();
+  }
+  MORK_ASSERT(outEnv);
+  return outEnv;
+}
+
+// { ===== begin nsIMdbObject methods =====
+
+// { ----- begin attribute methods -----
+/*virtual*/ mdb_err
+morkHandle::Handle_IsFrozenMdbObject(nsIMdbEnv* mev, mdb_bool* outIsReadonly)
+{
+  mdb_err outErr = 0;
+  
+  morkEnv* ev = CanUseHandle(mev, /*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    MORK_ASSERT(outIsReadonly);
+    if ( outIsReadonly )
+      *outIsReadonly = mHandle_Object->IsFrozen();
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+// same as nsIMdbPort::GetIsPortReadonly() when this object is inside a port.
+// } ----- end attribute methods -----
+
+// { ----- begin factory methods -----
+/*virtual*/ mdb_err
+morkHandle::Handle_GetMdbFactory(nsIMdbEnv* mev, nsIMdbFactory** acqFactory)
+{
+  mdb_err outErr = 0;
+  
+  morkEnv* ev = CanUseHandle(mev, /*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    morkFactory* factory = ev->mEnv_Factory;
+    if ( factory )
+    {
+      nsIMdbFactory* handle = factory->AcquireFactoryHandle(ev);
+      MORK_ASSERT(acqFactory);
+      if ( handle && acqFactory )
+        *acqFactory = handle;
+    }
+    else
+      this->NilFactoryError(ev);
+      
+    outErr = ev->AsErr();
+  }
+  return outErr;
+} 
+// } ----- end factory methods -----
+
+// { ----- begin ref counting for well-behaved cyclic graphs -----
+/*virtual*/ mdb_err
+morkHandle::Handle_GetWeakRefCount(nsIMdbEnv* mev, // weak refs
+  mdb_count* outCount)
+{
+  mdb_err outErr = 0;
+  
+  morkEnv* ev = CanUseHandle(mev, /*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    MORK_ASSERT(outCount);
+    if ( outCount )
+      *outCount = this->WeakRefsOnly();
+    
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}  
+/*virtual*/ mdb_err
+morkHandle::Handle_GetStrongRefCount(nsIMdbEnv* mev, // strong refs
+  mdb_count* outCount)
+{
+  mdb_err outErr = 0;
+  
+  morkEnv* ev = CanUseHandle(mev, /*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    MORK_ASSERT(outCount);
+    if ( outCount )
+      *outCount = this->StrongRefsOnly();
+    
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+morkHandle::Handle_AddWeakRef(nsIMdbEnv* mev)
+{
+  mdb_err outErr = 0;
+  
+  morkEnv* ev = CanUseHandle(mev, /*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    this->AddWeakRef(ev);
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}
+/*virtual*/ mdb_err
+morkHandle::Handle_AddStrongRef(nsIMdbEnv* mev)
+{
+  mdb_err outErr = 0;
+  
+  morkEnv* ev = CanUseHandle(mev, /*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    this->AddStrongRef(ev);
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+morkHandle::Handle_CutWeakRef(nsIMdbEnv* mev)
+{
+  mdb_err outErr = 0;
+  
+  morkEnv* ev = CanUseHandle(mev, /*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    this->CutWeakRef(ev);
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}
+/*virtual*/ mdb_err
+morkHandle::Handle_CutStrongRef(nsIMdbEnv* mev)
+{
+  mdb_err outErr = 0;
+  morkEnv* ev = CanUseHandle(mev, /*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    this->CutStrongRef(ev);
+    outErr = ev->AsErr();
+  }
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+morkHandle::Handle_CloseMdbObject(nsIMdbEnv* mev)
+{
+  mdb_err outErr = 0;
+  
+  if ( this->IsNode() && this->IsOpenNode() )
+  {
+    morkEnv* ev = CanUseHandle(mev, /*inMutable*/ morkBool_kFalse, &outErr);
+    if ( ev )
+    {
+      this->CloseMorkNode(ev);
+      outErr = ev->AsErr();
+    }
+  }
+  return outErr;
+} // called at strong refs zero
+
+/*virtual*/ mdb_err
+morkHandle::Handle_IsOpenMdbObject(nsIMdbEnv* mev, mdb_bool* outOpen)
+{
+  mdb_err outErr = 0;
+  
+  MORK_ASSERT(outOpen);
+  if ( outOpen )
+    *outOpen = this->IsOpenNode();
+      
+  return outErr;
+}
+// } ----- end ref counting -----
+
+// } ===== end nsIMdbObject methods =====
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkHandle.h

@@ -0,0 +1,189 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKHANDLE_
+#define _MORKHANDLE_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKDEQUE_
+#include "morkDeque.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+class morkPool;
+class morkObject;
+class morkFactory;
+
+#define morkDerived_kHandle     /*i*/ 0x486E /* ascii 'Hn' */
+#define morkHandle_kTag   0x68416E44 /* ascii 'hAnD' */
+
+/*| morkHandle: 
+|*/
+class morkHandle : public morkNode {
+  
+// public: // slots inherited from morkNode (meant to inform only)
+  // nsIMdbHeap*    mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+
+public: // state is public because the entire Mork system is private
+
+  mork_u4         mHandle_Tag;     // must equal morkHandle_kTag
+  morkEnv*        mHandle_Env;     // pool that allocated this handle
+  morkHandleFace* mHandle_Face;    // cookie from pool containing this
+  morkObject*     mHandle_Object;  // object this handle wraps for MDB API
+  mork_magic      mHandle_Magic;   // magic sig different in each subclass
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseHandle() only if open
+  virtual ~morkHandle(); // assert that CloseHandle() executed earlier
+  
+public: // morkHandle construction & destruction
+  morkHandle(morkEnv* ev, // note morkUsage is always morkUsage_kPool
+    morkHandleFace* ioFace,  // must not be nil, cookie for this handle
+    morkObject* ioObject,    // must not be nil, the object for this handle
+    mork_magic inMagic);     // magic sig to denote specific subclass
+  void CloseHandle(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkHandle(const morkHandle& other);
+  morkHandle& operator=(const morkHandle& other);
+  
+protected: // special case empty construction for morkHandleFrame
+  friend class morkHandleFrame;
+  morkHandle() { }
+
+public: // dynamic type identification
+  mork_bool IsHandle() const
+  { return IsNode() && mNode_Derived == morkDerived_kHandle; }
+// } ===== end morkNode methods =====
+
+public: // morkHandle memory management operators
+  void* operator new(size_t inSize, morkPool& ioPool, morkEnv* ev)
+  { return ioPool.NewHandle(ev, inSize); }
+  
+  void* operator new(size_t inSize, morkHandleFace* ioFace)
+  { return ioFace; }
+  
+  void operator delete(void* ioAddress)
+  { morkNode::OnDeleteAssert(ioAddress); }
+  // do NOT call delete on morkHandle instances.  They are collected.
+
+public: // other handle methods
+  mork_bool GoodHandleTag() const
+  { return mHandle_Tag == morkHandle_kTag; }
+  
+  void NewBadMagicHandleError(morkEnv* ev, mork_magic inMagic) const;
+  void NewDownHandleError(morkEnv* ev) const;
+  void NilFactoryError(morkEnv* ev) const;
+  void NilHandleObjectError(morkEnv* ev) const;
+  void NonNodeObjectError(morkEnv* ev) const;
+  void NonOpenObjectError(morkEnv* ev) const;
+  
+  morkObject* GetGoodHandleObject(morkEnv* ev,
+    mork_bool inMutabl, mork_magic inMagicType) const;
+
+public: // interface supporting mdbObject methods
+
+  morkEnv* CanUseHandle(nsIMdbEnv* mev, mork_bool inMutable,
+    mdb_err* outErr) const;
+    
+  // { ----- begin mdbObject style methods -----
+  mdb_err Handle_IsFrozenMdbObject(nsIMdbEnv* ev, mdb_bool* outIsReadonly);
+
+  mdb_err Handle_GetMdbFactory(nsIMdbEnv* ev, nsIMdbFactory** acqFactory); 
+  mdb_err Handle_GetWeakRefCount(nsIMdbEnv* ev,  mdb_count* outCount);  
+  mdb_err Handle_GetStrongRefCount(nsIMdbEnv* ev, mdb_count* outCount);
+
+  mdb_err Handle_AddWeakRef(nsIMdbEnv* ev);
+  mdb_err Handle_AddStrongRef(nsIMdbEnv* ev);
+
+  mdb_err Handle_CutWeakRef(nsIMdbEnv* ev);
+  mdb_err Handle_CutStrongRef(nsIMdbEnv* ev);
+  
+  mdb_err Handle_CloseMdbObject(nsIMdbEnv* ev);
+  mdb_err Handle_IsOpenMdbObject(nsIMdbEnv* ev, mdb_bool* outOpen);
+  // } ----- end mdbObject style methods -----
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakHandle(morkHandle* me,
+    morkEnv* ev, morkHandle** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongHandle(morkHandle* me,
+    morkEnv* ev, morkHandle** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+#define morkHandleFrame_kPadSlotCount 4
+
+/*| morkHandleFrame: an object format used for allocating and maintaining
+**| instances of morkHandle, with leading slots used to maintain this in a
+**| linked list, and following slots to provide extra footprint that might
+**| be needed by any morkHandle subclasses that include very little extra
+**| space (by virtue of the fact that each morkHandle subclass is expected
+**| to multiply inherit from another base class that has only abstact methods
+**| for space overhead related only to some vtable representation).
+|*/
+class morkHandleFrame {
+public:
+  morkLink    mHandleFrame_Link;    // list storage without trampling Handle
+  morkHandle  mHandleFrame_Handle;
+  mork_ip     mHandleFrame_Padding[ morkHandleFrame_kPadSlotCount ];
+  
+public:
+  morkHandle*  AsHandle() { return &mHandleFrame_Handle; }
+  
+  morkHandleFrame() {}  // actually, morkHandleFrame never gets constructed
+
+private: // copying is not allowed
+  morkHandleFrame(const morkHandleFrame& other);
+  morkHandleFrame& operator=(const morkHandleFrame& other);
+};
+
+#define morkHandleFrame_kHandleOffset \
+  mork_OffsetOf(morkHandleFrame,mHandleFrame_Handle)
+  
+#define morkHandle_AsHandleFrame(h) ((h)->mHandle_Block , \
+ ((morkHandleFrame*) (((mork_u1*)(h)) - morkHandleFrame_kHandleOffset)))
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKHANDLE_ */

mozilla/db/mork/src/morkIntMap.cpp

@@ -0,0 +1,148 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKINTMAP_
+#include "morkIntMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkIntMap::CloseMorkNode(morkEnv* ev) // CloseIntMap() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseIntMap(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkIntMap::~morkIntMap() // assert CloseIntMap() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkIntMap::morkIntMap(morkEnv* ev,
+  const morkUsage& inUsage, mork_size inValSize,
+  nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap, mork_bool inHoldChanges)
+: morkMap(ev, inUsage, ioHeap, sizeof(mork_u4), inValSize,
+  morkIntMap_kStartSlotCount, ioSlotHeap, inHoldChanges)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kIntMap;
+}
+
+/*public non-poly*/ void
+morkIntMap::CloseIntMap(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      this->CloseMap(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+// { ===== begin morkMap poly interface =====
+/*virtual*/ mork_bool // *((mork_u4*) inKeyA) == *((mork_u4*) inKeyB)
+morkIntMap::Equal(morkEnv* ev, const void* inKeyA, const void* inKeyB) const
+{
+  return *((const mork_u4*) inKeyA) == *((const mork_u4*) inKeyB);
+}
+
+/*virtual*/ mork_u4 // some integer function of *((mork_u4*) inKey)
+morkIntMap::Hash(morkEnv* ev, const void* inKey) const
+{
+  return *((const mork_u4*) inKey);
+}
+// } ===== end morkMap poly interface =====
+
+mork_bool
+morkIntMap::AddInt(morkEnv* ev, mork_u4 inKey, void* ioAddress)
+  // the AddInt() method return value equals ev->Good().
+{
+  if ( ev->Good() )
+  {
+    this->Put(ev, &inKey, &ioAddress, 
+      /*key*/ (void*) 0, /*val*/ (void*) 0, (mork_change**) 0);
+  }
+    
+  return ev->Good();
+}
+
+mork_bool
+morkIntMap::CutInt(morkEnv* ev, mork_u4 inKey)
+{
+  return this->Cut(ev, &inKey, /*key*/ (void*) 0, /*val*/ (void*) 0,
+    (mork_change**) 0);
+}
+
+void*
+morkIntMap::GetInt(morkEnv* ev, mork_u4 inKey)
+  // Note the returned val does NOT have an increase in refcount for this.
+{
+  void* val = 0; // old val in the map
+  this->Get(ev, &inKey, /*key*/ (void*) 0, &val, (mork_change**) 0);
+  
+  return val;
+}
+
+mork_bool
+morkIntMap::HasInt(morkEnv* ev, mork_u4 inKey)
+  // Note the returned val does NOT have an increase in refcount for this.
+{
+  return this->Get(ev, &inKey, /*key*/ (void*) 0, /*val*/ (void*) 0, 
+    (mork_change**) 0);
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkIntMap.h

@@ -0,0 +1,87 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKINTMAP_
+#define _MORKINTMAP_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kIntMap  /*i*/ 0x694D /* ascii 'iM' */
+
+#define morkIntMap_kStartSlotCount 512
+
+/*| morkIntMap: maps mork_token -> morkNode
+|*/
+class morkIntMap : public morkMap { // for mapping tokens to maps
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseIntMap() only if open
+  virtual ~morkIntMap(); // assert that CloseIntMap() executed earlier
+  
+public: // morkMap construction & destruction
+
+  // keySize for morkIntMap equals sizeof(mork_u4)
+  morkIntMap(morkEnv* ev, const morkUsage& inUsage, mork_size inValSize,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap, mork_bool inHoldChanges);
+  void CloseIntMap(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsIntMap() const
+  { return IsNode() && mNode_Derived == morkDerived_kIntMap; }
+// } ===== end morkNode methods =====
+
+// { ===== begin morkMap poly interface =====
+  virtual mork_bool // *((mork_u4*) inKeyA) == *((mork_u4*) inKeyB)
+  Equal(morkEnv* ev, const void* inKeyA, const void* inKeyB) const;
+
+  virtual mork_u4 // some integer function of *((mork_u4*) inKey)
+  Hash(morkEnv* ev, const void* inKey) const;
+// } ===== end morkMap poly interface =====
+
+public: // other map methods
+
+  mork_bool  AddInt(morkEnv* ev, mork_u4 inKey, void* ioAddress);
+  // the AddInt() boolean return equals ev->Good().
+
+  mork_bool  CutInt(morkEnv* ev, mork_token inKey);
+  // The CutInt() boolean return indicates whether removal happened. 
+  
+  void*      GetInt(morkEnv* ev, mork_token inKey);
+  // Note the returned node does NOT have an increase in refcount for this.
+  
+  mork_bool  HasInt(morkEnv* ev, mork_u4 inKey);
+  // Note the returned node does NOT have an increase in refcount for this.
+
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKINTMAP_ */

mozilla/db/mork/src/morkMap.cpp

@@ -0,0 +1,937 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+// This code is mostly a port to C++ from public domain IronDoc C sources.
+// Note many code comments here come verbatim from cut-and-pasted IronDoc.
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+
+class morkHashArrays {
+public:
+  nsIMdbHeap*   mHashArrays_Heap;     // copy of mMap_Heap
+  mork_count    mHashArrays_Slots;    // copy of mMap_Slots
+  
+  mork_u1*      mHashArrays_Keys;     // copy of mMap_Keys
+  mork_u1*      mHashArrays_Vals;     // copy of mMap_Vals
+  morkAssoc*    mHashArrays_Assocs;   // copy of mMap_Assocs
+  mork_change*  mHashArrays_Changes;  // copy of mMap_Changes
+  morkAssoc**   mHashArrays_Buckets;  // copy of mMap_Buckets
+  morkAssoc*    mHashArrays_FreeList; // copy of mMap_FreeList
+  
+public:
+  void finalize(morkEnv* ev);
+};
+
+void morkHashArrays::finalize(morkEnv* ev)
+{
+  nsIMdbEnv* menv = ev->AsMdbEnv();
+  nsIMdbHeap* heap = mHashArrays_Heap;
+  
+  if ( heap )
+  {
+    if ( mHashArrays_Keys )
+      heap->Free(menv, mHashArrays_Keys);
+    if ( mHashArrays_Vals )
+      heap->Free(menv, mHashArrays_Vals);
+    if ( mHashArrays_Assocs )
+      heap->Free(menv, mHashArrays_Assocs);
+    if ( mHashArrays_Changes )
+      heap->Free(menv, mHashArrays_Changes);
+    if ( mHashArrays_Buckets )
+      heap->Free(menv, mHashArrays_Buckets);
+  }
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkMap::CloseMorkNode(morkEnv* ev) // CloseMap() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseMap(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkMap::~morkMap() // assert CloseMap() executed earlier
+{
+  MORK_ASSERT(mMap_FreeList==0);
+  MORK_ASSERT(mMap_Buckets==0);
+  MORK_ASSERT(mMap_Keys==0);
+  MORK_ASSERT(mMap_Vals==0);
+  MORK_ASSERT(mMap_Changes==0);
+  MORK_ASSERT(mMap_Assocs==0);
+}
+
+/*public non-poly*/ void
+morkMap::CloseMap(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      nsIMdbHeap* heap = mMap_Heap;
+      if ( heap ) /* need to free the arrays? */
+      {
+        nsIMdbEnv* menv = ev->AsMdbEnv();
+        
+        if ( mMap_Keys )
+          heap->Free(menv, mMap_Keys);
+          
+        if ( mMap_Vals )
+          heap->Free(menv, mMap_Vals);
+          
+        if ( mMap_Assocs )
+          heap->Free(menv, mMap_Assocs);
+          
+        if ( mMap_Buckets )
+          heap->Free(menv, mMap_Buckets);
+          
+        if ( mMap_Changes )
+          heap->Free(menv, mMap_Changes);
+      }
+      mMap_Keys = 0;
+      mMap_Vals = 0;
+      mMap_Buckets = 0;
+      mMap_Assocs = 0;
+      mMap_Changes = 0;
+      mMap_FreeList = 0;
+      MORK_MEMSET(&mMap_Form, 0, sizeof(morkMapForm));
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+void
+morkMap::clear_map(morkEnv* ev, nsIMdbHeap* ioSlotHeap)
+{
+  mMap_Tag = 0;
+  mMap_Seed = 0;
+  mMap_Slots = 0;
+  mMap_Fill = 0;
+  mMap_Keys = 0;
+  mMap_Vals = 0;
+  mMap_Assocs = 0;
+  mMap_Changes = 0;
+  mMap_Buckets = 0;
+  mMap_FreeList = 0;
+  MORK_MEMSET(&mMap_Form, 0, sizeof(morkMapForm));
+  
+  mMap_Heap = 0;
+  if ( ioSlotHeap )
+  {
+    nsIMdbHeap_SlotStrongHeap(ioSlotHeap, ev, &mMap_Heap);
+  }
+  else
+    ev->NilPointerError();
+}
+
+morkMap::morkMap(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap, 
+  mork_size inKeySize, mork_size inValSize,
+  mork_size inSlots, nsIMdbHeap* ioSlotHeap, mork_bool inHoldChanges)
+: morkNode(ev, inUsage, ioHeap)
+, mMap_Heap( 0 )
+{
+  if ( ev->Good() )
+  {
+    this->clear_map(ev, ioSlotHeap);
+    if ( ev->Good() )
+    {
+      mMap_Form.mMapForm_HoldChanges = inHoldChanges;
+      
+      mMap_Form.mMapForm_KeySize = inKeySize;
+      mMap_Form.mMapForm_ValSize = inValSize;
+      mMap_Form.mMapForm_KeyIsIP = ( inKeySize == sizeof(mork_ip) );
+      mMap_Form.mMapForm_ValIsIP = ( inValSize == sizeof(mork_ip) );
+      
+      this->InitMap(ev, inSlots);
+      if ( ev->Good() )
+        mNode_Derived = morkDerived_kMap;
+    }
+  }
+}
+
+void
+morkMap::NewIterOutOfSyncError(morkEnv* ev)
+{
+  ev->NewError("map iter out of sync");
+}
+
+void morkMap::NewBadMapError(morkEnv* ev)
+{
+  ev->NewError("bad morkMap tag");
+  if ( !this )
+    ev->NewError("nil morkMap instance");
+}
+
+void morkMap::NewSlotsUnderflowWarning(morkEnv* ev)
+{
+  ev->NewWarning("member count underflow");
+}
+
+void morkMap::InitMap(morkEnv* ev, mork_size inSlots)
+{
+  if ( ev->Good() )
+  {
+    morkHashArrays old;
+    // MORK_MEMCPY(&mMap_Form, &inForm, sizeof(morkMapForm));
+    if ( inSlots < 3 ) /* requested capacity absurdly small? */
+      inSlots = 3; /* bump it up to a minimum practical level */
+    else if ( inSlots > (128 * 1024) ) /* requested slots absurdly big? */
+      inSlots = (128 * 1024); /* decrease it to a maximum practical level */
+      
+    if ( this->new_arrays(ev, &old, inSlots) )
+      mMap_Tag = morkMap_kTag;
+
+    MORK_MEMSET(&old, 0, sizeof(morkHashArrays)); // do NOT finalize
+  }
+}
+
+morkAssoc**
+morkMap::find(morkEnv* ev, const void* inKey, mork_u4 inHash) const
+{
+  mork_u1* keys = mMap_Keys;
+  mork_num keySize = this->FormKeySize();
+  // morkMap_mEqual equal = this->FormEqual();
+  
+  morkAssoc** ref = mMap_Buckets + (inHash % mMap_Slots);
+  morkAssoc* assoc = *ref;
+  while ( assoc ) /* look at another assoc in the bucket? */
+  {
+    mork_pos i = assoc - mMap_Assocs; /* index of this assoc */
+    if ( this->Equal(ev, keys + (i * keySize), inKey) ) /* found? */
+      return ref;
+      
+    ref = &assoc->mAssoc_Next; /* consider next assoc slot in bucket */
+    assoc = *ref; /* if this is null, then we are done */
+  }
+  return 0;
+}
+
+/*| get_assoc: read the key and/or value at index inPos
+|*/
+void
+morkMap::get_assoc(void* outKey, void* outVal, mork_pos inPos) const
+{
+  mork_num valSize = this->FormValSize();
+  if ( valSize && outVal ) /* map holds values? caller wants the value? */
+  {
+    const mork_u1* value = mMap_Vals + (valSize * inPos);
+    if ( valSize == sizeof(mork_ip) && this->FormValIsIP() ) /* ip case? */
+      *((mork_ip*) outVal) = *((const mork_ip*) value);
+    else
+      MORK_MEMCPY(outVal, value, valSize);
+  }
+  if ( outKey ) /* caller wants the key? */
+  {
+    mork_num keySize = this->FormKeySize();
+    const mork_u1* key = mMap_Keys + (keySize * inPos);
+    if ( keySize == sizeof(mork_ip) && this->FormKeyIsIP() ) /* ip case? */
+      *((mork_ip*) outKey) = *((const mork_ip*) key);
+    else
+      MORK_MEMCPY(outKey, key, keySize);
+  }
+}
+
+/*| put_assoc: write the key and/or value at index inPos
+|*/
+void
+morkMap::put_assoc(const void* inKey, const void* inVal, mork_pos inPos) const
+{
+  mork_num valSize = this->FormValSize();
+  if ( valSize && inVal ) /* map holds values? caller sends a value? */
+  {
+    mork_u1* value = mMap_Vals + (valSize * inPos);
+    if ( valSize == sizeof(mork_ip) && this->FormValIsIP() ) /* ip case? */
+      *((mork_ip*) value) = *((const mork_ip*) inVal);
+    else
+      MORK_MEMCPY(value, inVal, valSize);
+  }
+  if ( inKey ) /* caller sends a key? */
+  {
+    mork_num keySize = this->FormKeySize();
+    mork_u1* key = mMap_Keys + (keySize * inPos);
+    if ( keySize == sizeof(mork_ip) && this->FormKeyIsIP() ) /* ip case? */
+      *((mork_ip*) key) = *((const mork_ip*) inKey);
+    else
+      MORK_MEMCPY(key, inKey, keySize);
+  }
+}
+
+void*
+morkMap::clear_alloc(morkEnv* ev, mork_size inSize)
+{
+  void* p = 0;
+  nsIMdbHeap* heap = mMap_Heap;
+  if ( heap )
+  {
+    if ( heap->Alloc(ev->AsMdbEnv(), inSize, (void**) &p) == 0 && p )
+    {
+      MORK_MEMSET(p, 0, inSize);
+      return p;
+    }
+  }
+  else
+    ev->NilPointerError();
+    
+  return (void*) 0;
+}
+
+void*
+morkMap::alloc(morkEnv* ev, mork_size inSize)
+{
+  void* p = 0;
+  nsIMdbHeap* heap = mMap_Heap;
+  if ( heap )
+  {
+    if ( heap->Alloc(ev->AsMdbEnv(), inSize, (void**) &p) == 0 && p )
+      return p;
+  }
+  else
+    ev->NilPointerError();
+
+  return (void*) 0;
+}
+
+/*| new_keys: allocate an array of inSlots new keys filled with zero.
+|*/
+mork_u1*
+morkMap::new_keys(morkEnv* ev, mork_num inSlots)
+{
+  mork_num size = inSlots * this->FormKeySize();
+  return (mork_u1*) this->clear_alloc(ev, size);
+}
+
+/*| new_values: allocate an array of inSlots new values filled with zero.
+**| When values are zero sized, we just return a null pointer.
+|*/
+mork_u1*
+morkMap::new_values(morkEnv* ev, mork_num inSlots)
+{
+  mork_u1* values = 0;
+  mork_num size = inSlots * this->FormValSize();
+  if ( size )
+    values = (mork_u1*) this->clear_alloc(ev, size);
+  return values;
+}
+
+mork_change*
+morkMap::new_changes(morkEnv* ev, mork_num inSlots)
+{
+  mork_change* changes = 0;
+  mork_num size = inSlots * sizeof(mork_change);
+  if ( size && mMap_Form.mMapForm_HoldChanges )
+    changes = (mork_change*) this->clear_alloc(ev, size);
+  return changes;
+}
+
+/*| new_buckets: allocate an array of inSlots new buckets filled with zero.
+|*/
+morkAssoc**
+morkMap::new_buckets(morkEnv* ev, mork_num inSlots)
+{
+  mork_num size = inSlots * sizeof(morkAssoc*);
+  return (morkAssoc**) this->clear_alloc(ev, size);
+}
+
+/*| new_assocs: allocate an array of inSlots new assocs, with each assoc
+**| linked together in a list with the first array element at the list head
+**| and the last element at the list tail. (morkMap::grow() needs this.)
+|*/
+morkAssoc*
+morkMap::new_assocs(morkEnv* ev, mork_num inSlots)
+{
+  mork_num size = inSlots * sizeof(morkAssoc);
+  morkAssoc* assocs = (morkAssoc*) this->alloc(ev, size);
+  if ( assocs ) /* able to allocate the array? */
+  {
+    morkAssoc* a = assocs + (inSlots - 1); /* the last array element */
+    a->mAssoc_Next = 0; /* terminate tail element of the list with null */
+    while ( --a >= assocs ) /* another assoc to link into the list? */
+      a->mAssoc_Next = a + 1; /* each points to the following assoc */
+  }
+  return assocs;
+}
+
+mork_bool
+morkMap::new_arrays(morkEnv* ev, morkHashArrays* old, mork_num inSlots)
+{
+  mork_bool outNew = morkBool_kFalse;
+    
+  /* see if we can allocate all the new arrays before we go any further: */
+  morkAssoc** newBuckets = this->new_buckets(ev, inSlots);
+  morkAssoc* newAssocs = this->new_assocs(ev, inSlots);
+  mork_u1* newKeys = this->new_keys(ev, inSlots);
+  mork_u1* newValues = this->new_values(ev, inSlots);
+  mork_change* newChanges = this->new_changes(ev, inSlots);
+  
+  /* it is okay for newChanges to be null when changes are not held: */
+  mork_bool okayChanges = ( newChanges || !this->FormHoldChanges() );
+  
+  /* it is okay for newValues to be null when values are zero sized: */
+  mork_bool okayValues = ( newValues || !this->FormValSize() );
+  
+  if ( newBuckets && newAssocs && newKeys && okayChanges && okayValues )
+  {
+    outNew = morkBool_kTrue; /* yes, we created all the arrays we need */
+
+    /* init the old hashArrays with slots from this hash table: */
+    old->mHashArrays_Heap = mMap_Heap;
+    
+    old->mHashArrays_Slots = mMap_Slots;
+    old->mHashArrays_Keys = mMap_Keys;
+    old->mHashArrays_Vals = mMap_Vals;
+    old->mHashArrays_Assocs = mMap_Assocs;
+    old->mHashArrays_Buckets = mMap_Buckets;
+    old->mHashArrays_Changes = mMap_Changes;
+    
+    /* now replace all our array slots with the new structures: */
+    ++mMap_Seed; /* note the map is now changed */
+    mMap_Keys = newKeys;
+    mMap_Vals = newValues;
+    mMap_Buckets = newBuckets;
+    mMap_Assocs = newAssocs;
+    mMap_FreeList = newAssocs; /* all are free to start with */
+    mMap_Changes = newChanges;
+    mMap_Slots = inSlots;
+  }
+  else /* free the partial set of arrays that were actually allocated */
+  {
+    nsIMdbEnv* menv = ev->AsMdbEnv();
+    nsIMdbHeap* heap = mMap_Heap;
+    if ( newBuckets )
+      heap->Free(menv, newBuckets);
+    if ( newAssocs )
+      heap->Free(menv, newAssocs);
+    if ( newKeys )
+      heap->Free(menv, newKeys);
+    if ( newValues )
+      heap->Free(menv, newValues);
+    if ( newChanges )
+      heap->Free(menv, newChanges);
+    
+    MORK_MEMSET(old, 0, sizeof(morkHashArrays));
+  }
+  
+  return outNew;
+}
+
+/*| grow: make the map arrays bigger by 33%.  The old map is completely
+**| full, or else we would not have called grow() to get more space.  This
+**| means the free list is empty, and also means every old key and value is in
+**| use in the old arrays.  So every key and value must be copied to the new
+**| arrays, and since they are contiguous in the old arrays, we can efficiently
+**| bitwise copy them in bulk from the old arrays to the new arrays, without
+**| paying any attention to the structure of the old arrays.
+**|
+**|| The content of the old bucket and assoc arrays need not be copied because
+**| this information is going to be completely rebuilt by rehashing all the
+**| keys into their new buckets, given the new larger map capacity.  The new
+**| bucket array from new_arrays() is assumed to contain all zeroes, which is
+**| necessary to ensure the lists in each bucket stay null terminated as we
+**| build the new linked lists.  (Note no old bucket ordering is preserved.)
+**|
+**|| If the old capacity is N, then in the new arrays the assocs with indexes
+**| from zero to N-1 are still allocated and must be rehashed into the map.
+**| The new free list contains all the following assocs, starting with the new
+**| assoc link at index N.  (We call the links in the link array "assocs"
+**| because allocating a link is the same as allocating the key/value pair
+**| with the same index as the link.)
+**|
+**|| The new free list is initialized simply by pointing at the first new link
+**| in the assoc array after the size of the old assoc array.  This assumes
+**| that FeHashTable_new_arrays() has already linked all the new assocs into a
+**| list with the first at the head of the list and the last at the tail of the
+**| list.  So by making the free list point to the first of the new uncopied
+**| assocs, the list is already well-formed.
+|*/
+mork_bool morkMap::grow(morkEnv* ev)
+{
+  if ( mMap_Heap ) /* can we grow the map? */
+  {
+    mork_num newSlots = ((mMap_Slots * 4) / 3) + 1; /* +33% */
+    morkHashArrays old; /* a place to temporarily hold all the old arrays */
+    if ( this->new_arrays(ev, &old, newSlots) ) /* have more? */
+    {
+      // morkMap_mHash hash = this->FormHash(); /* for terse loop use */
+      
+      /* figure out the bulk volume sizes of old keys and values to move: */
+      mork_num oldSlots = old.mHashArrays_Slots; /* number of old assocs */
+      mork_num keyBulk = oldSlots * this->FormKeySize(); /* key volume */
+      mork_num valBulk = oldSlots * this->FormValSize(); /* values */
+      
+      /* convenient variables for new arrays that need to be rehashed: */
+      morkAssoc** newBuckets = mMap_Buckets; /* new all zeroes */
+      morkAssoc* newAssocs = mMap_Assocs; /* hash into buckets */
+      morkAssoc* newFreeList = newAssocs + oldSlots; /* new room is free */
+      mork_u1* key = mMap_Keys; /* the first key to rehash */
+      --newAssocs; /* back up one before preincrement used in while loop */
+      
+      /* move all old keys and values to the new arrays: */
+      MORK_MEMCPY(mMap_Keys, old.mHashArrays_Keys, keyBulk);
+      if ( valBulk ) /* are values nonzero sized? */
+        MORK_MEMCPY(mMap_Vals, old.mHashArrays_Vals, valBulk);
+        
+      mMap_FreeList = newFreeList; /* remaining assocs are free */
+      
+      while ( ++newAssocs < newFreeList ) /* rehash another old assoc? */
+      {
+        morkAssoc** top = newBuckets + (this->Hash(ev, key) % newSlots);
+        key += this->FormKeySize(); /* the next key to rehash */
+        newAssocs->mAssoc_Next = *top; /* link to prev bucket top */
+        *top = newAssocs; /* push assoc on top of bucket */
+      }
+      ++mMap_Seed; /* note the map has changed */
+      old.finalize(ev); /* remember to free the old arrays */
+    }
+  }
+  else ev->OutOfMemoryError();
+  
+  return ev->Good();
+}
+
+
+mork_bool
+morkMap::Put(morkEnv* ev, const void* inKey, const void* inVal,
+  void* outKey, void* outVal, mork_change** outChange)
+{
+  mork_bool outPut = morkBool_kFalse;
+  
+  if ( this->GoodMap() ) /* looks good? */
+  {
+    mork_u4 hash = this->Hash(ev, inKey);
+    morkAssoc** ref = this->find(ev, inKey, hash);
+    if ( ref ) /* assoc was found? reuse an existing assoc slot? */
+    {
+      outPut = morkBool_kTrue; /* inKey was indeed already inside the map */
+    }
+    else /* assoc not found -- need to allocate a new assoc slot */
+    {
+      morkAssoc* assoc = this->pop_free_assoc();
+      if ( !assoc ) /* no slots remaining in free list? must grow map? */
+      {
+        if ( this->grow(ev) ) /* successfully made map larger? */
+          assoc = this->pop_free_assoc();
+      }
+      if ( assoc ) /* allocated new assoc without error? */
+      {
+        ref = mMap_Buckets + (hash % mMap_Slots);
+        assoc->mAssoc_Next = *ref; /* link to prev bucket top */
+        *ref = assoc; /* push assoc on top of bucket */
+          
+        ++mMap_Fill; /* one more member in the collection */
+        ++mMap_Seed; /* note the map has changed */
+      }
+    }
+    if ( ref ) /* did not have an error during possible growth? */
+    {
+      mork_pos i = (*ref) - mMap_Assocs; /* index of assoc */
+      if ( outPut && (outKey || outVal) ) /* copy old before cobbering? */
+        this->get_assoc(outKey, outVal, i);
+
+      this->put_assoc(inKey, inVal, i);
+      ++mMap_Seed; /* note the map has changed */
+      
+      if ( outChange )
+      {
+        if ( mMap_Changes )
+          *outChange = mMap_Changes + i;
+        else
+          *outChange = this->FormDummyChange();
+      }
+    }
+  }
+  else this->NewBadMapError(ev);
+  
+  return outPut;
+}
+
+mork_num
+morkMap::CutAll(morkEnv* ev)
+{
+  mork_num outCutAll = 0;
+  
+  if ( this->GoodMap() ) /* map looks good? */
+  {
+    mork_num slots = mMap_Slots;
+    morkAssoc* before = mMap_Assocs - 1; /* before first member */
+    morkAssoc* assoc = before + slots; /* the very last member */
+
+    ++mMap_Seed; /* note the map is changed */
+
+    /* make the assoc array a linked list headed by first & tailed by last: */
+    assoc->mAssoc_Next = 0; /* null terminate the new free list */
+    while ( --assoc > before ) /* another assoc to link into the list? */
+      assoc->mAssoc_Next = assoc + 1;
+    mMap_FreeList = mMap_Assocs; /* all are free */
+
+    outCutAll = mMap_Fill; /* we'll cut all of them of course */
+
+    mMap_Fill = 0; /* the map is completely empty */
+  }
+  else this->NewBadMapError(ev);
+  
+  return outCutAll;
+}
+
+mork_bool
+morkMap::Cut(morkEnv* ev, const void* inKey,
+  void* outKey, void* outVal, mork_change** outChange)
+{
+  mork_bool outCut = morkBool_kFalse;
+  
+  if ( this->GoodMap() ) /* looks good? */
+  {
+    mork_u4 hash = this->Hash(ev, inKey);
+    morkAssoc** ref = this->find(ev, inKey, hash);
+    if ( ref ) /* found an assoc for key? */
+    {
+      outCut = morkBool_kTrue;
+      morkAssoc* assoc = *ref;
+      mork_pos i = assoc - mMap_Assocs; /* index of assoc */
+      *ref = assoc->mAssoc_Next; /* unlink the found assoc */
+      this->push_free_assoc(assoc); /* and put it in free list */
+
+      if ( outChange )
+      {
+        if ( mMap_Changes )
+          *outChange = mMap_Changes + i;
+        else
+          *outChange = this->FormDummyChange();
+      }
+      
+      ++mMap_Seed; /* note the map has changed */
+      if ( mMap_Fill ) /* the count shows nonzero members? */
+        --mMap_Fill; /* one less member in the collection */
+      else
+        this->NewSlotsUnderflowWarning(ev);
+    }
+  }
+  else this->NewBadMapError(ev);
+  
+  return outCut;
+}
+
+mork_bool
+morkMap::Get(morkEnv* ev, const void* inKey,
+  void* outKey, void* outVal, mork_change** outChange)
+{
+  mork_bool outGet = morkBool_kFalse;
+  
+  if ( this->GoodMap() ) /* looks good? */
+  {
+    mork_u4 hash = this->Hash(ev, inKey);
+    morkAssoc** ref = this->find(ev, inKey, hash);
+    if ( ref ) /* found an assoc for inKey? */
+    {
+      mork_pos i = (*ref) - mMap_Assocs; /* index of assoc */
+      outGet = morkBool_kTrue;
+      this->get_assoc(outKey, outVal, i);
+      if ( outChange )
+      {
+        if ( mMap_Changes )
+          *outChange = mMap_Changes + i;
+        else
+          *outChange = this->FormDummyChange();
+      }
+    }
+  }
+  else this->NewBadMapError(ev);
+  
+  return outGet;
+}
+
+
+morkMapIter::morkMapIter( )
+: mMapIter_Map( 0 )
+, mMapIter_Seed( 0 )
+  
+, mMapIter_Bucket( 0 )
+, mMapIter_AssocRef( 0 )
+, mMapIter_Assoc( 0 )
+, mMapIter_Next( 0 )
+{
+}
+
+void
+morkMapIter::InitMapIter(morkEnv* ev, morkMap* ioMap)
+{
+  mMapIter_Map = 0;
+  mMapIter_Seed = 0;
+
+  mMapIter_Bucket = 0;
+  mMapIter_AssocRef = 0;
+  mMapIter_Assoc = 0;
+  mMapIter_Next = 0;
+
+  if ( ioMap )
+  {
+    if ( ioMap->GoodMap() )
+    {
+      mMapIter_Map = ioMap;
+      mMapIter_Seed = ioMap->mMap_Seed;
+    }
+    else ioMap->NewBadMapError(ev);
+  }
+  else ev->NilPointerError();
+}
+
+morkMapIter::morkMapIter(morkEnv* ev, morkMap* ioMap)
+: mMapIter_Map( 0 )
+, mMapIter_Seed( 0 )
+  
+, mMapIter_Bucket( 0 )
+, mMapIter_AssocRef( 0 )
+, mMapIter_Assoc( 0 )
+, mMapIter_Next( 0 )
+{
+  if ( ioMap )
+  {
+    if ( ioMap->GoodMap() )
+    {
+      mMapIter_Map = ioMap;
+      mMapIter_Seed = ioMap->mMap_Seed;
+    }
+    else ioMap->NewBadMapError(ev);
+  }
+  else ev->NilPointerError();
+}
+
+void
+morkMapIter::CloseMapIter(morkEnv* ev)
+{
+  mMapIter_Map = 0;
+  mMapIter_Seed = 0;
+  
+  mMapIter_Bucket = 0;
+  mMapIter_AssocRef = 0;
+  mMapIter_Assoc = 0;
+  mMapIter_Next = 0;
+}
+
+mork_change*
+morkMapIter::First(morkEnv* ev, void* outKey, void* outVal)
+{
+  mork_change* outFirst = 0;
+  
+  morkMap* map = mMapIter_Map;
+  
+  if ( map && map->GoodMap() ) /* map looks good? */
+  {
+    morkAssoc** bucket = map->mMap_Buckets;
+    morkAssoc** end = bucket + map->mMap_Slots; /* one past last */
+ 
+    mMapIter_Seed = map->mMap_Seed; /* sync the seeds */
+   
+    while ( bucket < end ) /* another bucket in which to look for assocs? */
+    {
+      morkAssoc* assoc = *bucket++;
+      if ( assoc ) /* found the first map assoc in use? */
+      {
+        mork_pos i = assoc - map->mMap_Assocs;
+        mork_change* c = map->mMap_Changes;
+        outFirst = ( c )? (c + i) : map->FormDummyChange();
+        
+        mMapIter_Assoc = assoc; /* current assoc in iteration */
+        mMapIter_Next = assoc->mAssoc_Next; /* more in bucket */
+        mMapIter_Bucket = --bucket; /* bucket for this assoc */
+        mMapIter_AssocRef = bucket; /* slot referencing assoc */
+        
+        map->get_assoc(outKey, outVal, i);
+          
+        break; /* end while loop */
+      }
+    }
+  }
+  else map->NewBadMapError(ev);
+
+  return outFirst;
+}
+
+mork_change*
+morkMapIter::Next(morkEnv* ev, void* outKey, void* outVal)
+{
+  mork_change* outNext = 0;
+  
+  morkMap* map = mMapIter_Map;
+  
+  if ( map && map->GoodMap() ) /* map looks good? */
+  {
+    if ( mMapIter_Seed == map->mMap_Seed ) /* in sync? */
+    {
+      morkAssoc* here = mMapIter_Assoc; /* current assoc */
+      if ( here ) /* iteration is not yet concluded? */
+      {
+        morkAssoc* next = mMapIter_Next;
+        morkAssoc* assoc = next; /* default new mMapIter_Assoc */  
+        if ( next ) /* there are more assocs in the same bucket after Here? */
+        {
+          morkAssoc** ref = mMapIter_AssocRef;
+          
+          /* (*HereRef) equals Here, except when Here has been cut, after
+          ** which (*HereRef) always equals Next.  So if (*HereRef) is not
+          ** equal to Next, then HereRef still needs to be updated to point
+          ** somewhere else other than Here.  Otherwise it is fine.
+          */
+          if ( *ref != next ) /* Here was not cut? must update HereRef? */
+            mMapIter_AssocRef = &here->mAssoc_Next;
+            
+          mMapIter_Next = next->mAssoc_Next;
+        }
+        else /* look for the next assoc in the next nonempty bucket */
+        {
+          morkAssoc** bucket = map->mMap_Buckets;
+          morkAssoc** end = bucket + map->mMap_Slots; /* beyond */
+          mMapIter_Assoc = 0; /* default to no more assocs */
+          bucket = mMapIter_Bucket; /* last exhausted bucket */
+          mMapIter_Assoc = 0; /* default to iteration ended */
+          
+          while ( ++bucket < end ) /* another bucket to search for assocs? */
+          {
+            assoc = *bucket;
+            if ( assoc ) /* found another map assoc in use? */
+            {
+              mMapIter_Bucket = bucket;
+              mMapIter_AssocRef = bucket; /* ref to assoc */
+              mMapIter_Next = assoc->mAssoc_Next; /* more */
+              
+              break; /* end while loop */
+            }
+          }
+        }
+        if ( assoc ) /* did we find another assoc in the iteration? */
+        {
+          mMapIter_Assoc = assoc; /* current assoc */
+          mork_pos i = assoc - map->mMap_Assocs;
+          mork_change* c = map->mMap_Changes;
+          outNext = ( c )? (c + i) : map->FormDummyChange();
+        
+          map->get_assoc( outKey, outVal, i);
+        }
+      }
+    }
+    else map->NewIterOutOfSyncError(ev);
+  }
+  else map->NewBadMapError(ev);
+  
+  return outNext;
+}
+
+mork_change*
+morkMapIter::Here(morkEnv* ev, void* outKey, void* outVal)
+{
+  mork_change* outHere = 0;
+  
+  morkMap* map = mMapIter_Map;
+  
+  if ( map && map->GoodMap() ) /* map looks good? */
+  {
+    if ( mMapIter_Seed == map->mMap_Seed ) /* in sync? */
+    {
+      morkAssoc* here = mMapIter_Assoc; /* current assoc */
+      if ( here ) /* iteration is not yet concluded? */
+      {
+        mork_pos i = here - map->mMap_Assocs;
+        mork_change* c = map->mMap_Changes;
+        outHere = ( c )? (c + i) : map->FormDummyChange();
+          
+        map->get_assoc(outKey, outVal, i);
+      }
+    }
+    else map->NewIterOutOfSyncError(ev);
+  }
+  else map->NewBadMapError(ev);
+  
+  return outHere;
+}
+
+mork_change*
+morkMapIter::CutHere(morkEnv* ev, void* outKey, void* outVal)
+{
+  mork_change* outCutHere = 0;
+  morkMap* map = mMapIter_Map;
+  
+  if ( map && map->GoodMap() ) /* map looks good? */
+  {
+    if ( mMapIter_Seed == map->mMap_Seed ) /* in sync? */
+    {
+      morkAssoc* here = mMapIter_Assoc; /* current assoc */
+      if ( here ) /* iteration is not yet concluded? */
+      {
+        morkAssoc** ref = mMapIter_AssocRef;
+        if ( *ref != mMapIter_Next ) /* not already cut? */
+        {
+          mork_pos i = here - map->mMap_Assocs;
+          mork_change* c = map->mMap_Changes;
+          outCutHere = ( c )? (c + i) : map->FormDummyChange();
+          if ( outKey || outVal )
+            map->get_assoc(outKey, outVal, i);
+            
+          map->push_free_assoc(here); /* add to free list */
+          *ref = mMapIter_Next; /* unlink here from bucket list */
+          
+          /* note the map has changed, but we are still in sync: */
+          mMapIter_Seed = ++map->mMap_Seed; /* sync */
+          
+          if ( map->mMap_Fill ) /* still has nonzero value? */
+            --map->mMap_Fill; /* one less member in the collection */
+          else
+            map->NewSlotsUnderflowWarning(ev);
+        }
+      }
+    }
+    else map->NewIterOutOfSyncError(ev);
+  }
+  else map->NewBadMapError(ev);
+  
+  return outCutHere;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkMap.h

@@ -0,0 +1,372 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKMAP_
+#define _MORKMAP_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/* (These hash methods closely resemble those in public domain IronDoc.) */
+
+/*| Equal: equal for hash table. Note equal(a,b) implies hash(a)==hash(b).
+|*/
+typedef mork_bool (* morkMap_mEqual)
+(const morkMap* self, morkEnv* ev, const void* inKeyA, const void* inKeyB);
+
+/*| Hash: hash for hash table. Note equal(a,b) implies hash(a)==hash(b).
+|*/
+typedef mork_u4 (* morkMap_mHash)
+(const morkMap* self, morkEnv* ev, const void* inKey);
+
+/*| IsNil: whether a key slot contains a "null" value denoting "no such key".
+|*/
+typedef mork_bool (* morkMap_mIsNil)
+(const morkMap* self, morkEnv* ev, const void* inKey);
+
+/*| Note: notify regarding a refcounting change for a key or a value.
+|*/
+//typedef void (* morkMap_mNote)
+//(morkMap* self, morkEnv* ev, void* inKeyOrVal);
+
+/*| morkMapForm: slots need to initialize a new dict.  (This is very similar
+**| to the config object for public domain IronDoc hash tables.)
+|*/
+class morkMapForm { // a struct of callback method pointers for morkMap
+public:
+  
+  // const void*     mMapForm_NilKey;  // externally defined 'nil' bit pattern
+
+  // void*           mMapForm_NilBuf[ 8 ]; // potential place to put NilKey
+  // If keys are no larger than 8*sizeof(void*), NilKey can be put in NilBuf.
+  // Note this should be true for all Mork subclasses, and we plan usage so.
+  
+  // These three methods must always be provided, so zero will cause errors:
+  
+  // morkMap_mEqual  mMapForm_Equal;   // for comparing two keys for identity
+  // morkMap_mHash   mMapForm_Hash;    // deterministic key to hash method
+  // morkMap_mIsNil  mMapForm_IsNil;   // to query whether a key equals 'nil'
+  
+  // If any of these method slots are nonzero, then morkMap will call the
+  // appropriate one to notify dict users when a key or value is added or cut.
+  // Presumably a caller wants to know this in order to perform refcounting or
+  // some other kind of memory management.  These methods are definitely only
+  // called when references to keys or values are inserted or removed, and are
+  // never called when the actual number of references does not change (such
+  // as when added keys are already present or cut keys are alreading missing).
+  // 
+  // morkMap_mNote   mMapForm_AddKey;  // if nonzero, notify about add key
+  // morkMap_mNote   mMapForm_CutKey;  // if nonzero, notify about cut key
+  // morkMap_mNote   mMapForm_AddVal;  // if nonzero, notify about add val
+  // morkMap_mNote   mMapForm_CutVal;  // if nonzero, notify about cut val
+  //
+  // These note methods have been removed because it seems difficult to
+  // guarantee suitable alignment of objects passed to notification methods.
+  
+  // Note dict clients should pick key and val sizes that provide whatever
+  // alignment will be required for an array of such keys and values.
+  mork_size       mMapForm_KeySize; // size of every key (cannot be zero)
+  mork_size       mMapForm_ValSize; // size of every val (can indeed be zero)
+  
+  mork_bool       mMapForm_HoldChanges; // support changes array in the map
+  mork_change     mMapForm_DummyChange; // change used for false HoldChanges
+  mork_bool       mMapForm_KeyIsIP;     // key is mork_ip sized
+  mork_bool       mMapForm_ValIsIP;     // key is mork_ip sized
+};
+
+/*| morkAssoc: a canonical association slot in a morkMap.  A single assoc
+**| instance does nothing except point to the next assoc in the same bucket
+**| of a hash table.  Each assoc has only two interesting attributes: 1) the
+**| address of the assoc, and 2) the next assoc in a bucket's list.  The assoc
+**| address is interesting because in the context of an array of such assocs,
+**| one can determine the index of a particular assoc in the array by address
+**| arithmetic, subtracting the array address from the assoc address.  And the
+**| index of each assoc is the same index as the associated key and val slots
+**| in the associated arrays
+**|
+**|| Think of an assoc instance as really also containing a key slot and a val
+**| slot, where each key is mMap_Form.mMapForm_KeySize bytes in size, and
+**| each val is mMap_Form.mMapForm_ValSize in size.  But the key and val
+**| slots are stored in separate arrays with indexes that are parallel to the
+**| indexes in the array of morkAssoc instances.  We have taken the variable
+**| sized slots out of the morkAssoc structure, and put them into parallel
+**| arrays associated with each morkAssoc by array index.  And this leaves us
+**| with only the link field to the next assoc in each assoc instance.
+|*/
+class morkAssoc {
+public:
+  morkAssoc*   mAssoc_Next;
+};
+
+
+#define morkDerived_kMap     /*i*/ 0x4D70 /* ascii 'Mp' */
+
+#define morkMap_kTag     /*i*/ 0x6D4D6150 /* ascii 'mMaP' */
+
+/*| morkMap: a hash table based on the public domain IronDoc hash table
+**| (which is in turn rather like a similar OpenDoc hash table).
+|*/
+class morkMap : public morkNode {
+
+// public: // slots inherited from morkNode (meant to inform only)
+  // nsIMdbHeap*       mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+
+public: // state is public because the entire Mork system is private
+
+  nsIMdbHeap*       mMap_Heap; // strong ref to heap allocating all space
+  mork_u4           mMap_Tag; // must equal morkMap_kTag
+
+  // When a morkMap instance is constructed, the dict form slots must be
+  // provided in order to properly configure a dict with all runtime needs:
+  
+  morkMapForm       mMap_Form; // construction time parameterization
+  
+  // Whenever the dict changes structure in a way that would affect any
+  // iteration of the dict associations, the seed increments to show this:
+  
+  mork_seed         mMap_Seed;   // counter for member and structural changes
+  
+  // The current total assoc capacity of the dict is mMap_Slots, where
+  // mMap_Fill of these slots are actually holding content, so mMap_Fill
+  // is the actual membership count, and mMap_Slots is how larger membership
+  // can become before the hash table must grow the buffers being used. 
+  
+  mork_count        mMap_Slots;  // count of slots in the hash table
+  mork_fill         mMap_Fill;   // number of used slots in the hash table
+  
+  // Key and value slots are bound to corresponding mMap_Assocs array slots.
+  // Instead of having a single array like this: {key,val,next}[ mMap_Slots ]
+  // we have instead three parallel arrays with essentially the same meaning:
+  // {key}[ mMap_Slots ], {val}[ mMap_Slots ], {assocs}[ mMap_Slots ]
+  
+  mork_u1*          mMap_Keys;  // mMap_Slots * mMapForm_KeySize buffer
+  mork_u1*          mMap_Vals;  // mMap_Slots * mMapForm_ValSize buffer
+
+  // An assoc is "used" when it appears in a bucket's linked list of assocs.
+  // Until an assoc is used, it appears in the FreeList linked list.  Every
+  // assoc that becomes used goes into the bucket determined by hashing the
+  // key associated with a new assoc.  The key associated with a new assoc
+  // goes in to the slot in mMap_Keys which occupies exactly the same array
+  // index as the array index of the used assoc in the mMap_Assocs array.
+  
+  morkAssoc*        mMap_Assocs;   // mMap_Slots * sizeof(morkAssoc) buffer
+  
+  // The changes array is only needed when the
+
+  mork_change*      mMap_Changes;  // mMap_Slots * sizeof(mork_change) buffer
+  
+  // The Buckets array need not be the same length as the Assocs array, but we
+  // usually do it that way so the average bucket depth is no more than one.
+  // (We could pick a different policy, or make it parameterizable, but that's
+  // tuning we can do some other time.)
+  
+  morkAssoc**       mMap_Buckets;  // mMap_Slots * sizeof(morkAssoc*) buffer
+  
+  // The length of the mMap_FreeList should equal (mMap_Slots - mMap_Fill).
+  // We need a free list instead of a simpler representation because assocs
+  // can be cut and returned to availability in any kind of unknown pattern.
+  // (However, when assocs are first allocated, or when the dict is grown, we
+  // know all new assocs are contiguous and can chain together adjacently.)
+  
+  morkAssoc*        mMap_FreeList; // list of unused mMap_Assocs array slots 
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseMap() only if open
+  virtual ~morkMap(); // assert that CloseMap() executed earlier
+  
+public: // morkMap construction & destruction
+  morkMap(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioNodeHeap, 
+    mork_size inKeySize, mork_size inValSize,
+    mork_size inSlots, nsIMdbHeap* ioSlotHeap, mork_bool inHoldChanges);
+  
+  void CloseMap(morkEnv* ev); // called by 
+  
+public: // dynamic type identification
+  mork_bool IsMap() const
+  { return IsNode() && mNode_Derived == morkDerived_kMap; }
+// } ===== end morkNode methods =====
+
+public: // poly map hash table methods
+
+// { ===== begin morkMap poly interface =====
+  virtual mork_bool // note: equal(a,b) implies hash(a) == hash(b)
+  Equal(morkEnv* ev, const void* inKeyA, const void* inKeyB) const = 0;
+
+  virtual mork_u4 // note: equal(a,b) implies hash(a) == hash(b)
+  Hash(morkEnv* ev, const void* inKey) const = 0;
+// } ===== end morkMap poly interface =====
+
+public: // open utitity methods
+
+  mork_bool GoodMapTag() const { return mMap_Tag == morkMap_kTag; }
+  mork_bool GoodMap() const
+  { return ( IsNode() && GoodMapTag() ); }
+  
+  void NewIterOutOfSyncError(morkEnv* ev);
+  void NewBadMapError(morkEnv* ev);
+  void NewSlotsUnderflowWarning(morkEnv* ev);
+  void InitMap(morkEnv* ev, mork_size inSlots);
+
+protected: // internal utitity methods
+
+  friend class morkMapIter;
+  void clear_map(morkEnv* ev, nsIMdbHeap* ioHeap);
+
+  void* alloc(morkEnv* ev, mork_size inSize);
+  void* clear_alloc(morkEnv* ev, mork_size inSize);
+  
+  void push_free_assoc(morkAssoc* ioAssoc)
+  {
+    ioAssoc->mAssoc_Next = mMap_FreeList;
+    mMap_FreeList = ioAssoc;
+  }
+  
+  morkAssoc* pop_free_assoc()
+  {
+    morkAssoc* assoc = mMap_FreeList;
+    if ( assoc )
+      mMap_FreeList = assoc->mAssoc_Next;
+    return assoc;
+  }
+
+  morkAssoc** find(morkEnv* ev, const void* inKey, mork_u4 inHash) const;
+  
+  mork_u1* new_keys(morkEnv* ev, mork_num inSlots);
+  mork_u1* new_values(morkEnv* ev, mork_num inSlots);
+  mork_change* new_changes(morkEnv* ev, mork_num inSlots);
+  morkAssoc** new_buckets(morkEnv* ev, mork_num inSlots);
+  morkAssoc* new_assocs(morkEnv* ev, mork_num inSlots);
+  mork_bool new_arrays(morkEnv* ev, morkHashArrays* old, mork_num inSlots);
+  
+  mork_bool grow(morkEnv* ev);
+
+  void get_assoc(void* outKey, void* outVal, mork_pos inPos) const;
+  void put_assoc(const void* inKey, const void* inVal, mork_pos inPos) const;
+  
+public: // inlines to form slots
+  // const void*     FormNilKey() const { return mMap_Form.mMapForm_NilKey; }
+  
+  // morkMap_mEqual  FormEqual() const { return mMap_Form.mMapForm_Equal; }
+  // morkMap_mHash   FormHash() const { return mMap_Form.mMapForm_Hash; }
+  // orkMap_mIsNil  FormIsNil() const { return mMap_Form.mMapForm_IsNil; } 
+    
+  // morkMap_mNote   FormAddKey() const { return mMap_Form.mMapForm_AddKey; }
+  // morkMap_mNote   FormCutKey() const { return mMap_Form.mMapForm_CutKey; }
+  // morkMap_mNote   FormAddVal() const { return mMap_Form.mMapForm_AddVal; }
+  // morkMap_mNote   FormCutVal() const { return mMap_Form.mMapForm_CutVal; }
+  
+  mork_size       FormKeySize() const { return mMap_Form.mMapForm_KeySize; }
+  mork_size       FormValSize() const { return mMap_Form.mMapForm_ValSize; }
+
+  mork_bool       FormKeyIsIP() const { return mMap_Form.mMapForm_KeyIsIP; }
+  mork_bool       FormValIsIP() const { return mMap_Form.mMapForm_ValIsIP; }
+
+  mork_bool       FormHoldChanges() const
+  { return mMap_Form.mMapForm_HoldChanges; }
+  
+  mork_change*    FormDummyChange()
+  { return &mMap_Form.mMapForm_DummyChange; }
+
+public: // other map methods
+ 
+  mork_bool Put(morkEnv* ev, const void* inKey, const void* inVal,
+    void* outKey, void* outVal, mork_change** outChange);
+    
+  mork_bool Cut(morkEnv* ev, const void* inKey,
+    void* outKey, void* outVal, mork_change** outChange);
+    
+  mork_bool Get(morkEnv* ev, const void* inKey, 
+    void* outKey, void* outVal, mork_change** outChange);
+    
+  mork_num CutAll(morkEnv* ev);
+
+private: // copying is not allowed
+  morkMap(const morkMap& other);
+  morkMap& operator=(const morkMap& other);
+
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakMap(morkMap* me,
+    morkEnv* ev, morkMap** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongMap(morkMap* me,
+    morkEnv* ev, morkMap** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+/*| morkMapIter: an iterator for morkMap and subclasses.  This is not a node,
+**| and expected usage is as a member of some other node subclass, such as in
+**| a cursor subclass or a thumb subclass.  Also, iters might be as temp stack
+**| objects when scanning the content of a map.
+|*/
+class morkMapIter{  // iterator for hash table map
+
+protected:
+  morkMap*    mMapIter_Map;      // map to iterate, NOT refcounted
+  mork_seed   mMapIter_Seed;     // cached copy of map's seed
+  
+  morkAssoc** mMapIter_Bucket;   // one bucket in mMap_Buckets array
+  morkAssoc** mMapIter_AssocRef; // usually *AtRef equals Here
+  morkAssoc*  mMapIter_Assoc;    // the current assoc in an iteration
+  morkAssoc*  mMapIter_Next;     // mMapIter_Assoc->mAssoc_Next */
+
+public:
+  morkMapIter(morkEnv* ev, morkMap* ioMap);
+  void CloseMapIter(morkEnv* ev);
+ 
+  morkMapIter( ); // everything set to zero -- need to call InitMapIter()
+
+protected: // we want all subclasses to provide typesafe wrappers:
+
+  void InitMapIter(morkEnv* ev, morkMap* ioMap);
+ 
+  // The morkAssoc returned below is always either mork_change* or
+  // else nil (when there is no such assoc).  We return a pointer to
+  // the change rather than a simple bool, because callers might
+  // want to access change info associated with an assoc.
+  
+  mork_change* First(morkEnv* ev, void* outKey, void* outVal);
+  mork_change* Next(morkEnv* ev, void* outKey, void* outVal);
+  mork_change* Here(morkEnv* ev, void* outKey, void* outVal);
+  
+  mork_change* CutHere(morkEnv* ev, void* outKey, void* outVal);
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKMAP_ */

mozilla/db/mork/src/morkNode.cpp

@@ -0,0 +1,576 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKHANDLE_
+#include "morkHandle.h"
+#endif
+
+/*3456789_123456789_123456789_123456789_123456789_123456789_123456789_12345678*/
+
+/* ===== ===== ===== ===== morkUsage ===== ===== ===== ===== */
+
+static morkUsage morkUsage_gHeap; // ensure EnsureReadyStaticUsage()
+const morkUsage& morkUsage::kHeap = morkUsage_gHeap;
+
+static morkUsage morkUsage_gStack; // ensure EnsureReadyStaticUsage()
+const morkUsage& morkUsage::kStack = morkUsage_gStack;
+
+static morkUsage morkUsage_gMember; // ensure EnsureReadyStaticUsage()
+const morkUsage& morkUsage::kMember = morkUsage_gMember;
+
+static morkUsage morkUsage_gGlobal; // ensure EnsureReadyStaticUsage()
+const morkUsage& morkUsage::kGlobal = morkUsage_gGlobal;
+
+static morkUsage morkUsage_gPool; // ensure EnsureReadyStaticUsage()
+const morkUsage& morkUsage::kPool = morkUsage_gPool;
+
+static morkUsage morkUsage_gNone; // ensure EnsureReadyStaticUsage()
+const morkUsage& morkUsage::kNone = morkUsage_gNone;
+
+// This must be structured to allow for non-zero values in global variables
+// just before static init time.  We can only safely check for whether a
+// global has the address of some other global.  Please, do not initialize
+// either of the variables below to zero, because this could break when a zero
+// is assigned at static init time, but after EnsureReadyStaticUsage() runs.
+
+static mork_u4 morkUsage_g_static_init_target; // only address of this matters
+static mork_u4* morkUsage_g_static_init_done; // is address of target above?
+
+#define morkUsage_do_static_init() \
+  ( morkUsage_g_static_init_done = &morkUsage_g_static_init_target )
+
+#define morkUsage_need_static_init() \
+  ( morkUsage_g_static_init_done != &morkUsage_g_static_init_target )
+
+/*static*/
+void morkUsage::EnsureReadyStaticUsage()
+{
+  if ( morkUsage_need_static_init() )
+  {
+    morkUsage_do_static_init();
+
+    morkUsage_gHeap.InitUsage(morkUsage_kHeap);
+    morkUsage_gStack.InitUsage(morkUsage_kStack);
+    morkUsage_gMember.InitUsage(morkUsage_kMember);
+    morkUsage_gGlobal.InitUsage(morkUsage_kGlobal);
+    morkUsage_gPool.InitUsage(morkUsage_kPool);
+    morkUsage_gNone.InitUsage(morkUsage_kNone);
+  }
+}
+
+/*static*/
+const morkUsage& morkUsage::GetHeap()   // kHeap safe at static init time
+{
+  EnsureReadyStaticUsage();
+  return morkUsage_gHeap;
+}
+
+/*static*/
+const morkUsage& morkUsage::GetStack()  // kStack safe at static init time
+{
+  EnsureReadyStaticUsage();
+  return morkUsage_gStack;
+}
+
+/*static*/
+const morkUsage& morkUsage::GetMember() // kMember safe at static init time
+{
+  EnsureReadyStaticUsage();
+  return morkUsage_gMember;
+}
+
+/*static*/
+const morkUsage& morkUsage::GetGlobal() // kGlobal safe at static init time
+{
+  EnsureReadyStaticUsage();
+  return morkUsage_gGlobal;
+}
+
+/*static*/
+const morkUsage& morkUsage::GetPool()  // kPool safe at static init time
+{
+  EnsureReadyStaticUsage();
+  return morkUsage_gPool;
+}
+
+/*static*/
+const morkUsage& morkUsage::GetNone()  // kNone safe at static init time
+{
+  EnsureReadyStaticUsage();
+  return morkUsage_gNone;
+}
+
+morkUsage::morkUsage()
+{
+  if ( morkUsage_need_static_init() )
+  {
+    morkUsage::EnsureReadyStaticUsage();
+  }
+}
+
+morkUsage::morkUsage(mork_usage code)
+  : mUsage_Code(code)
+{
+  if ( morkUsage_need_static_init() )
+  {
+    morkUsage::EnsureReadyStaticUsage();
+  }
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/*static*/ void*
+morkNode::MakeNew(size_t inSize, nsIMdbHeap& ioHeap, morkEnv* ev)
+{
+  void* node = 0;
+  if ( &ioHeap )
+  {
+    ioHeap.Alloc(ev->AsMdbEnv(), inSize, (void **) &node);
+    if ( !node )
+      ev->OutOfMemoryError();
+  }
+  else
+    ev->NilPointerError();
+  
+  return node;
+}
+
+/*static*/ void
+morkNode::OnDeleteAssert(void* ioAddress) // cannot operator delete()
+{
+  MORK_USED_1(ioAddress);
+  MORK_ASSERT(morkBool_kFalse); // tell developer: must not delete nodes
+}
+
+/*public non-poly*/ void
+morkNode::ZapOld(morkEnv* ev, nsIMdbHeap* ioHeap)
+  // relaces operator delete()
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      this->morkNode::~morkNode(); // first call polymorphic destructor
+      if ( ioHeap ) // was this node heap allocated?
+        ioHeap->Free(ev->AsMdbEnv(), this);
+      else if ( mNode_Usage == morkUsage_kPool )
+      {
+        morkHandle* h = (morkHandle*) this;
+        if ( h->IsHandle() && h->GoodHandleTag() )
+        {
+          if ( h->mHandle_Face )
+          {
+            ev->mEnv_HandlePool->ZapHandle(ev, h->mHandle_Face);
+          }
+          else
+            ev->NilPointerError();
+        }
+      }
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+/*public virtual*/ void
+morkNode::CloseMorkNode(morkEnv* ev) // CloseNode() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseNode(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkNode::~morkNode() // assert that CloseNode() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+  mNode_Access = morkAccess_kDead;
+  mNode_Usage = morkUsage_kNone;
+}
+
+/*public virtual*/
+// void CloseMorkNode(morkEnv* ev) = 0; // CloseNode() only if open
+  // CloseMorkNode() is the polymorphic close method called when uses==0,
+  // which must do NOTHING at all when IsOpenNode() is not true.  Otherwise,
+  // CloseMorkNode() should call a static close method specific to an object.
+  // Each such static close method should either call inherited static close
+  // methods, or else perform the consolidated effect of calling them, where
+  // subclasses should closely track any changes in base classes with care.
+  
+
+/*public non-poly*/
+morkNode::morkNode(const morkUsage& inUsage, nsIMdbHeap* ioHeap)
+: mNode_Heap( ioHeap )
+, mNode_Base( morkBase_kNode )
+, mNode_Derived ( 0 ) // until subclass sets appropriately
+, mNode_Access( morkAccess_kOpen )
+, mNode_Usage( inUsage.Code() )
+, mNode_Mutable( morkAble_kEnabled )
+, mNode_Load( morkLoad_kClean )
+, mNode_Uses( 1 )
+, mNode_Refs( 1 )
+{
+}
+
+/*public non-poly*/
+morkNode::morkNode(morkEnv* ev,
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap)
+: mNode_Heap( ioHeap )
+, mNode_Base( morkBase_kNode )
+, mNode_Derived ( 0 ) // until subclass sets appropriately
+, mNode_Access( morkAccess_kOpen )
+, mNode_Usage( inUsage.Code() )
+, mNode_Mutable( morkAble_kEnabled )
+, mNode_Load( morkLoad_kClean )
+, mNode_Uses( 1 )
+, mNode_Refs( 1 )
+{
+  if ( !ioHeap && mNode_Usage == morkUsage_kHeap )
+  {
+    this->NilHeapError(ev);
+  }
+}
+
+/*protected non-poly*/ void
+morkNode::RefsUnderUsesWarning(morkEnv* ev) const 
+{
+  ev->NewError("mNode_Refs < mNode_Uses");
+}
+
+/*protected non-poly*/ void
+morkNode::NonNodeError(morkEnv* ev) const // called when IsNode() is false
+{
+  ev->NewError("non-morkNode");
+}
+
+/*protected non-poly*/ void
+morkNode::NonOpenNodeError(morkEnv* ev) const // when IsOpenNode() is false
+{
+  ev->NewError("non-open-morkNode");
+}
+
+/*protected non-poly*/ void
+morkNode::NonMutableNodeError(morkEnv* ev) const // when IsMutable() is false
+{
+  ev->NewError("non-mutable-morkNode");
+}
+
+/*protected non-poly*/ void
+morkNode::NilHeapError(morkEnv* ev) const // zero mNode_Heap w/ kHeap usage
+{
+  ev->NewError("nil mNode_Heap");
+}
+
+/*protected non-poly*/ void
+morkNode::RefsOverflowWarning(morkEnv* ev) const // mNode_Refs overflow
+{
+  ev->NewWarning("mNode_Refs overflow");
+}
+
+/*protected non-poly*/ void
+morkNode::UsesOverflowWarning(morkEnv* ev) const // mNode_Uses overflow
+{
+  ev->NewWarning("mNode_Uses overflow");
+}
+
+/*protected non-poly*/ void
+morkNode::RefsUnderflowWarning(morkEnv* ev) const // mNode_Refs underflow
+{
+  ev->NewWarning("mNode_Refs underflow");
+}
+
+/*protected non-poly*/ void
+morkNode::UsesUnderflowWarning(morkEnv* ev) const // mNode_Uses underflow
+{
+  ev->NewWarning("mNode_Uses underflow");
+}
+
+/*public non-poly*/ void
+morkNode::CloseNode(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+      this->MarkShut();
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+  
+void // utility method very similar to morkNode::SlotStrongNode():
+nsIMdbHeap_SlotStrongHeap(nsIMdbHeap* self, morkEnv* ev, nsIMdbHeap** ioSlot)
+  // If *ioSlot is non-nil, that heap is released by CutStrongRef() and
+  // then zeroed out.  Then if this is non-nil, this is acquired by
+  // calling AddStrongRef(), and if the return value shows success,
+  // then this is put into slot *ioSlot.  Note self can be nil, so we
+  // permit expression 'nsIMdbHeap_SlotStrongHeap(0, ev, &slot)'.
+{
+  nsIMdbEnv* menv = ev->AsMdbEnv();
+  nsIMdbHeap* heap = *ioSlot;
+  if ( heap )
+  {
+    *ioSlot = 0;
+    heap->CutStrongRef(menv);
+  }
+  if ( self && ev->Good() && (self->AddStrongRef(menv)==0) && ev->Good() )
+    *ioSlot = self;
+}
+
+/*public static*/ void
+morkNode::SlotStrongNode(morkNode* me, morkEnv* ev, morkNode** ioSlot)
+  // If *ioSlot is non-nil, that node is released by CutStrongRef() and
+  // then zeroed out.  Then if me is non-nil, this is acquired by
+  // calling AddStrongRef(), and if positive is returned to show success,
+  // then me is put into slot *ioSlot.  Note me can be nil, so we take
+  // expression 'morkNode::SlotStrongNode((morkNode*) 0, ev, &slot)'.
+{
+  morkNode* node = *ioSlot;
+  if ( node )
+  {
+    *ioSlot = 0;
+    node->CutStrongRef(ev);
+  }
+  if ( me && me->AddStrongRef(ev) )
+    *ioSlot = me;
+}
+
+/*public static*/ void
+morkNode::SlotWeakNode(morkNode* me, morkEnv* ev, morkNode** ioSlot)
+  // If *ioSlot is non-nil, that node is released by CutWeakRef() and
+  // then zeroed out.  Then if me is non-nil, this is acquired by
+  // calling AddWeakRef(), and if positive is returned to show success,
+  // then me is put into slot *ioSlot.  Note me can be nil, so we
+  // expression 'morkNode::SlotWeakNode((morkNode*) 0, ev, &slot)'.
+{
+  morkNode* node = *ioSlot;
+  if ( node )
+  {
+    *ioSlot = 0;
+    node->CutWeakRef(ev);
+  }
+  if ( me && me->AddWeakRef(ev) )
+    *ioSlot = me;
+}
+
+/*public non-poly*/ mork_uses
+morkNode::AddStrongRef(morkEnv* ev)
+{
+  mork_uses outUses = 0;
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mork_uses uses = mNode_Uses;
+      mork_refs refs = mNode_Refs;
+      if ( refs < uses ) // need to fix broken refs/uses relation?
+      { 
+        this->RefsUnderUsesWarning(ev);
+        mNode_Refs = mNode_Uses = refs = uses;
+      }
+      if ( refs < morkNode_kMaxRefCount ) // not too great?
+      {
+        mNode_Refs = ++refs;
+        mNode_Uses = ++uses;
+      }
+      else
+        this->RefsOverflowWarning(ev);
+
+      outUses = uses;
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+  return outUses;
+}
+
+/*private non-poly*/ mork_bool
+morkNode::cut_use_count(morkEnv* ev) // just one part of CutStrongRef()
+{
+  mork_bool didCut = morkBool_kFalse;
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mork_uses uses = mNode_Uses;
+      if ( uses ) // not yet zero?
+        mNode_Uses = --uses;
+      else
+        this->UsesUnderflowWarning(ev);
+
+      didCut = morkBool_kTrue;
+      if ( !mNode_Uses ) // last use gone? time to close node?
+      {
+        if ( this->IsOpenNode() )
+        {
+          if ( !mNode_Refs ) // no outstanding reference?
+          {
+            this->RefsUnderflowWarning(ev);
+            ++mNode_Refs; // prevent potential crash during close
+          }
+          this->CloseMorkNode(ev); // polymorphic self close
+          // (Note CutNode() is not polymorphic -- so don't call that.)
+        }
+      }
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+  return didCut;
+}
+
+/*public non-poly*/ mork_uses
+morkNode::CutStrongRef(morkEnv* ev)
+{
+  mork_refs outRefs = 0;
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      if ( this->cut_use_count(ev) )
+        outRefs = this->CutWeakRef(ev);
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+  return outRefs;
+}
+
+/*public non-poly*/ mork_refs
+morkNode::AddWeakRef(morkEnv* ev)
+{
+  mork_refs outRefs = 0;
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mork_refs refs = mNode_Refs;
+      if ( refs < morkNode_kMaxRefCount ) // not too great?
+        mNode_Refs = ++refs;
+      else
+        this->RefsOverflowWarning(ev);
+        
+      outRefs = refs;
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+  return outRefs;
+}
+
+/*public non-poly*/ mork_refs
+morkNode::CutWeakRef(morkEnv* ev)
+{
+  mork_refs outRefs = 0;
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mork_uses uses = mNode_Uses;
+      mork_refs refs = mNode_Refs;
+      if ( refs ) // not yet zero?
+        mNode_Refs = --refs;
+      else
+        this->RefsUnderflowWarning(ev);
+
+      if ( refs < uses ) // need to fix broken refs/uses relation?
+      { 
+        this->RefsUnderUsesWarning(ev);
+        mNode_Refs = mNode_Uses = refs = uses;
+      }
+        
+      outRefs = refs;
+      if ( !refs ) // last reference gone? time to destroy node?
+        this->ZapOld(ev, mNode_Heap); // self destroy, use this no longer
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+  return outRefs;
+}
+
+static const char* morkNode_kBroken = "broken";
+
+/*public non-poly*/ const char*
+morkNode::GetNodeAccessAsString() const // e.g. "open", "shut", etc.
+{
+  const char* outString = morkNode_kBroken;
+  switch( mNode_Access )
+  {
+    case morkAccess_kOpen: outString = "open"; break;
+    case morkAccess_kClosing: outString = "closing"; break;
+    case morkAccess_kShut: outString = "shut"; break;
+    case morkAccess_kDead: outString = "dead"; break;
+  }
+  return outString;
+}
+
+/*public non-poly*/ const char*
+morkNode::GetNodeUsageAsString() const // e.g. "heap", "stack", etc.
+{
+  const char* outString = morkNode_kBroken;
+  switch( mNode_Usage )
+  {
+    case morkUsage_kHeap: outString = "heap"; break;
+    case morkUsage_kStack: outString = "stack"; break;
+    case morkUsage_kMember: outString = "member"; break;
+    case morkUsage_kGlobal: outString = "global"; break;
+    case morkUsage_kPool: outString = "pool"; break;
+    case morkUsage_kNone: outString = "none"; break;
+  }
+  return outString;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkNode.h

@@ -0,0 +1,274 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKNODE_
+#define _MORKNODE_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkUsage_kHeap    'h'
+#define morkUsage_kStack   's'
+#define morkUsage_kMember  'm'
+#define morkUsage_kGlobal  'g'
+#define morkUsage_kPool    'p'
+#define morkUsage_kNone    'n'
+
+class morkUsage {
+public:
+  mork_usage     mUsage_Code;  // kHeap, kStack, kMember, or kGhost
+  
+public:
+  morkUsage(mork_usage inCode);
+
+  morkUsage(); // does nothing except maybe call EnsureReadyStaticUsage()
+  void InitUsage( mork_usage inCode)
+  { mUsage_Code = inCode; }
+  
+  ~morkUsage() { }
+  mork_usage Code() const { return mUsage_Code; }
+  
+  static void EnsureReadyStaticUsage();
+  
+public:
+  static const morkUsage& kHeap;      // morkUsage_kHeap
+  static const morkUsage& kStack;     // morkUsage_kStack
+  static const morkUsage& kMember;    // morkUsage_kMember
+  static const morkUsage& kGlobal;    // morkUsage_kGlobal
+  static const morkUsage& kPool;      // morkUsage_kPool
+  static const morkUsage& kNone;      // morkUsage_kNone
+  
+  static const morkUsage& GetHeap();   // kHeap, safe at static init time
+  static const morkUsage& GetStack();  // kStack, safe at static init time
+  static const morkUsage& GetMember(); // kMember, safe at static init time
+  static const morkUsage& GetGlobal(); // kGlobal, safe at static init time
+  static const morkUsage& GetPool();   // kPool, safe at static init time
+  static const morkUsage& GetNone();   // kNone, safe at static init time
+    
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkNode_kMaxRefCount 0x0FFFF /* count sticks if it hits this */
+
+#define morkBase_kNode      /*i*/ 0x4E64 /* ascii 'Nd' */
+
+/*| morkNode: several groups of two-byte integers that track the basic
+**| status of an object that can be used to compose in-memory graphs.
+**| This is the base class for nsIMdbObject (which adds members that fit
+**| the needs of an nsIMdbObject subclass).  The morkNode class is also used
+**| as the base class for other Mork db classes with no strong relation to
+**| the MDB class hierarchy.
+**|
+**|| Heap: the heap in which this node was allocated, when the usage equals
+**| morkUsage_kHeap to show dynamic allocation.  Note this heap is NOT ref-
+**| counted, because that would be too great and complex a burden for all
+**| the nodes allocated in that heap.  So heap users should take care to
+**| understand that nodes allocated in that heap are considered protected
+**| by some inclusive context in which all those nodes are allocated, and
+**| that context must maintain at least one strong refcount for the heap.
+**| Occasionally a node subclass will indeed wish to hold a refcounted
+**| reference to a heap, and possibly the same heap that is in mNode_Heap,
+**| but this is always done in a separate slot that explicitly refcounts,
+**| so we avoid confusing what is meant by the mNode_Heap slot.
+|*/
+class morkNode { // base class for constructing Mork object graphs
+
+public: // state is public because the entire Mork system is private
+  
+  nsIMdbHeap*    mNode_Heap;     // NON-refcounted heap pointer
+
+  mork_base      mNode_Base;     // must equal morkBase_kNode
+  mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  mork_able      mNode_Mutable;  // can this node be modified?
+  mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  mork_uses      mNode_Uses;     // refcount for strong refs
+  mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+  
+protected: // special case empty construction for morkHandleFrame
+  friend class morkHandleFrame;
+  morkNode() { }
+  
+public: // inlines for weird mNode_Mutable and mNode_Load constants
+
+  void SetFrozen() { mNode_Mutable = morkAble_kDisabled; }
+  void SetMutable() { mNode_Mutable = morkAble_kEnabled; }
+  void SetAsleep() { mNode_Mutable = morkAble_kAsleep; }
+  
+  mork_bool IsFrozen() const { return mNode_Mutable == morkAble_kDisabled; }
+  mork_bool IsMutable() const { return mNode_Mutable == morkAble_kEnabled; }
+  mork_bool IsAsleep() const { return mNode_Mutable == morkAble_kAsleep; }
+
+  void SetClean() { mNode_Load = morkLoad_kClean; }
+  void SetDirty() { mNode_Load = morkLoad_kDirty; }
+  
+  mork_bool IsClean() const { return mNode_Load == morkLoad_kClean; }
+  mork_bool IsDirty() const { return mNode_Load == morkLoad_kDirty; }
+  
+public: // morkNode memory management methods
+  static void* MakeNew(size_t inSize, nsIMdbHeap& ioHeap, morkEnv* ev);
+  
+  static void OnDeleteAssert(void* ioAddress); // cannot operator delete()
+  void ZapOld(morkEnv* ev, nsIMdbHeap* ioHeap); // replaces operator delete()
+  // this->morkNode::~morkNode(); // first call polymorphic destructor
+  // if ( ioHeap ) // was this node heap allocated?
+  //    ioHeap->Free(ev->AsMdbEnv(), this);
+
+public: // morkNode memory management operators
+  void* operator new(size_t inSize, nsIMdbHeap& ioHeap, morkEnv* ev)
+  { return morkNode::MakeNew(inSize, ioHeap, ev); }
+  
+  void operator delete(void* ioAddress)
+  { morkNode::OnDeleteAssert(ioAddress); }
+  // do NOT call delete on morkNode instances.  Call ZapOld() instead.
+
+protected: // construction without an anv needed for first env constructed:
+  morkNode(const morkUsage& inUsage, nsIMdbHeap* ioHeap);
+
+// { ===== begin basic node interface =====
+public: // morkNode virtual methods
+  // virtual FlushMorkNode(morkEnv* ev, morkStream* ioStream);
+  // virtual WriteMorkNode(morkEnv* ev, morkStream* ioStream);
+  
+  virtual ~morkNode(); // assert that CloseNode() executed earlier
+  virtual void CloseMorkNode(morkEnv* ev); // CloseNode() only if open
+  
+  // CloseMorkNode() is the polymorphic close method called when uses==0,
+  // which must do NOTHING at all when IsOpenNode() is not true.  Otherwise,
+  // CloseMorkNode() should call a static close method specific to an object.
+  // Each such static close method should either call inherited static close
+  // methods, or else perform the consolidated effect of calling them, where
+  // subclasses should closely track any changes in base classes with care.
+  
+public: // morkNode construction
+  morkNode(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap);
+  void CloseNode(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkNode(const morkNode& other);
+  morkNode& operator=(const morkNode& other);
+
+public: // dynamic type identification
+  mork_bool IsNode() const
+  { return mNode_Base == morkBase_kNode; }
+// } ===== end basic node methods =====
+    
+public: // public error & warning methods
+
+  void RefsUnderUsesWarning(morkEnv* ev) const; // call if mNode_Refs < mNode_Uses
+  void NonNodeError(morkEnv* ev) const; // call when IsNode() is false
+  void NilHeapError(morkEnv* ev) const; // zero mNode_Heap when usage is kHeap
+  void NonOpenNodeError(morkEnv* ev) const; // call when IsOpenNode() is false
+
+  void NonMutableNodeError(morkEnv* ev) const; // when IsMutable() is false
+
+  void RefsOverflowWarning(morkEnv* ev) const; // call on mNode_Refs overflow
+  void UsesOverflowWarning(morkEnv* ev) const; // call on mNode_Uses overflow
+  void RefsUnderflowWarning(morkEnv* ev) const; // call on mNode_Refs underflow
+  void UsesUnderflowWarning(morkEnv* ev) const; // call on mNode_Uses underflow
+
+private: // private refcounting methods
+  mork_bool  cut_use_count(morkEnv* ev); // just one part of CutStrongRef()
+
+public: // other morkNode methods
+
+  mork_bool  GoodRefs() const { return mNode_Refs >= mNode_Uses; }
+  mork_bool  BadRefs() const { return mNode_Refs < mNode_Uses; }
+
+  mork_uses  StrongRefsOnly() const { return mNode_Uses; }
+  mork_refs  WeakRefsOnly() const { return ( mNode_Refs - mNode_Uses ); }
+
+  // (this refcounting derives from public domain IronDoc node refcounts)
+  mork_refs    AddStrongRef(morkEnv* ev);
+  mork_refs    CutStrongRef(morkEnv* ev);
+  mork_refs    AddWeakRef(morkEnv* ev);
+  mork_refs    CutWeakRef(morkEnv* ev);
+
+  const char* GetNodeAccessAsString() const; // e.g. "open", "shut", etc.
+  const char* GetNodeUsageAsString() const; // e.g. "heap", "stack", etc.
+
+  mork_usage NodeUsage() const { return mNode_Usage; }
+
+  mork_bool IsHeapNode() const
+  { return mNode_Usage == morkUsage_kHeap; }
+
+  mork_bool IsStackNode() const
+  { return mNode_Usage == morkUsage_kStack; }
+
+  mork_bool IsGlobalNode() const
+  { return mNode_Usage == morkUsage_kGlobal; }
+
+  mork_bool IsMemberNode() const
+  { return mNode_Usage == morkUsage_kMember; }
+
+  mork_bool IsOpenNode() const
+  { return mNode_Access == morkAccess_kOpen; }
+
+  mork_bool IsShutNode() const
+  { return mNode_Access == morkAccess_kShut; }
+
+  mork_bool IsDeadNode() const
+  { return mNode_Access == morkAccess_kDead; }
+
+  mork_bool IsClosingNode() const
+  { return mNode_Access == morkAccess_kClosing; }
+
+  mork_bool IsOpenOrClosingNode() const
+  { return IsOpenNode() || IsClosingNode(); }
+
+  mork_bool HasNodeAccess() const
+  { return ( IsOpenNode() || IsShutNode() || IsClosingNode() ); }
+    
+  void MarkShut() { mNode_Access = morkAccess_kShut; }
+  void MarkClosing() { mNode_Access = morkAccess_kClosing; }
+  void MarkDead() { mNode_Access = morkAccess_kDead; }
+
+public: // refcounting for typesafe subclass inline methods
+  static void SlotWeakNode(morkNode* me, morkEnv* ev, morkNode** ioSlot);
+  // If *ioSlot is non-nil, that node is released by CutWeakRef() and
+  // then zeroed out.  Then if me is non-nil, this is acquired by
+  // calling AddWeakRef(), and if positive is returned to show success,
+  // then this is put into slot *ioSlot.  Note me can be nil, so we
+  // permit expression '((morkNode*) 0L)->SlotWeakNode(ev, &slot)'.
+  
+  static void SlotStrongNode(morkNode* me, morkEnv* ev, morkNode** ioSlot);
+  // If *ioSlot is non-nil, that node is released by CutStrongRef() and
+  // then zeroed out.  Then if me is non-nil, this is acquired by
+  // calling AddStrongRef(), and if positive is returned to show success,
+  // then me is put into slot *ioSlot.  Note me can be nil, so we take
+  // expression 'morkNode::SlotStrongNode((morkNode*) 0, ev, &slot)'.
+};
+
+extern void // utility method very similar to morkNode::SlotStrongNode():
+nsIMdbHeap_SlotStrongHeap(nsIMdbHeap* self, morkEnv* ev, nsIMdbHeap** ioSlot);
+  // If *ioSlot is non-nil, that heap is released by CutStrongRef() and
+  // then zeroed out.  Then if me is non-nil, this is acquired by
+  // calling AddStrongRef(), and if the return value shows success,
+  // then me is put into slot *ioSlot.  Note me can be nil, so we take
+  // expression 'nsIMdbHeap_SlotStrongNode(0, ev, &slot)'.
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKNODE_ */

mozilla/db/mork/src/morkNodeMap.cpp

@@ -0,0 +1,173 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKINTMAP_
+#include "morkIntMap.h"
+#endif
+
+#ifndef _MORKNODEMAP_
+#include "morkNodeMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkNodeMap::CloseMorkNode(morkEnv* ev) // CloseNodeMap() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseNodeMap(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkNodeMap::~morkNodeMap() // assert CloseNodeMap() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkNodeMap::morkNodeMap(morkEnv* ev,
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+: morkIntMap(ev, inUsage, /*valsize*/ sizeof(morkNode*), ioHeap, ioSlotHeap,
+  /*inHoldChanges*/ morkBool_kTrue)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kNodeMap;
+}
+
+/*public non-poly*/ void
+morkNodeMap::CloseNodeMap(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      this->CutAllNodes(ev);
+      this->CloseMap(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+mork_bool
+morkNodeMap::AddNode(morkEnv* ev, mork_token inToken, morkNode* ioNode)
+  // the AddNode() method return value equals ev->Good().
+{
+  if ( ioNode && ev->Good() )
+  {
+    morkNode* node = 0; // old val in the map
+    
+    mork_bool put = this->Put(ev, &inToken, &ioNode,
+      /*key*/ (void*) 0, &node, (mork_change**) 0);
+      
+    if ( put ) // replaced an existing value for key inToken?
+    {
+      if ( node && node != ioNode ) // need to release old node?
+        node->CutStrongRef(ev);
+    }
+    
+    if ( ev->Bad() || !ioNode->AddStrongRef(ev) )
+    {
+      // problems adding node or increasing refcount?
+      this->Cut(ev, &inToken,  // make sure not in map
+        /*key*/ (void*) 0, /*val*/ (void*) 0, (mork_change**) 0);
+    }
+  }
+  else if ( !ioNode )
+    ev->NilPointerError();
+    
+  return ev->Good();
+}
+
+mork_bool
+morkNodeMap::CutNode(morkEnv* ev, mork_token inToken)
+{
+  morkNode* node = 0; // old val in the map
+  mork_bool outCutNode = this->Cut(ev, &inToken, 
+    /*key*/ (void*) 0, &node, (mork_change**) 0);
+  if ( node )
+    node->CutStrongRef(ev);
+  
+  return outCutNode;
+}
+
+morkNode*
+morkNodeMap::GetNode(morkEnv* ev, mork_token inToken)
+  // Note the returned node does NOT have an increase in refcount for this.
+{
+  morkNode* node = 0; // old val in the map
+  this->Get(ev, &inToken, /*key*/ (void*) 0, &node, (mork_change**) 0);
+  
+  return node;
+}
+
+mork_num
+morkNodeMap::CutAllNodes(morkEnv* ev)
+  // CutAllNodes() releases all the reference node values.
+{
+  mork_num outSlots = mMap_Slots;
+  mork_token key = 0; // old key token in the map
+  morkNode* val = 0; // old val node in the map
+  
+  mork_change* c = 0;
+  morkNodeMapIter i(ev, this);
+  for ( c = i.FirstNode(ev, &key, &val); c ; c = i.NextNode(ev, &key, &val) )
+  {
+    if ( val )
+      val->CutStrongRef(ev);
+    i.CutHereNode(ev, /*key*/ (mork_token*) 0, /*val*/ (morkNode**) 0);
+  }
+  
+  return outSlots;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+

mozilla/db/mork/src/morkNodeMap.h

@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKNODEMAP_
+#define _MORKNODEMAP_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKINTMAP_
+#include "morkIntMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kNodeMap  /*i*/ 0x6E4D /* ascii 'nM' */
+
+#define morkNodeMap_kStartSlotCount 512
+
+/*| morkNodeMap: maps mork_token -> morkNode
+|*/
+class morkNodeMap : public morkIntMap { // for mapping tokens to nodes
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseNodeMap() only if open
+  virtual ~morkNodeMap(); // assert that CloseNodeMap() executed earlier
+  
+public: // morkMap construction & destruction
+  morkNodeMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap);
+  void CloseNodeMap(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsNodeMap() const
+  { return IsNode() && mNode_Derived == morkDerived_kNodeMap; }
+// } ===== end morkNode methods =====
+
+// { ===== begin morkMap poly interface =====
+  // use the Equal() and Hash() for mork_u4 inherited from morkIntMap
+// } ===== end morkMap poly interface =====
+
+protected: // we want all subclasses to provide typesafe wrappers:
+
+  mork_bool  AddNode(morkEnv* ev, mork_token inToken, morkNode* ioNode);
+  // the AddNode() boolean return equals ev->Good().
+
+  mork_bool  CutNode(morkEnv* ev, mork_token inToken);
+  // The CutNode() boolean return indicates whether removal happened. 
+  
+  morkNode*  GetNode(morkEnv* ev, mork_token inToken);
+  // Note the returned node does NOT have an increase in refcount for this.
+
+  mork_num CutAllNodes(morkEnv* ev);
+  // CutAllNodes() releases all the reference node values.
+};
+
+class morkNodeMapIter: public morkMapIter{ // typesafe wrapper class
+
+public:
+  morkNodeMapIter(morkEnv* ev, morkNodeMap* ioMap)
+  : morkMapIter(ev, ioMap) { }
+ 
+  morkNodeMapIter( ) : morkMapIter()  { }
+  void InitNodeMapIter(morkEnv* ev, morkNodeMap* ioMap)
+  { this->InitMapIter(ev, ioMap); }
+   
+  mork_change*
+  FirstNode(morkEnv* ev, mork_token* outToken, morkNode** outNode)
+  { return this->First(ev, outToken, outNode); }
+  
+  mork_change*
+  NextNode(morkEnv* ev, mork_token* outToken, morkNode** outNode)
+  { return this->Next(ev, outToken, outNode); }
+  
+  mork_change*
+  HereNode(morkEnv* ev, mork_token* outToken, morkNode** outNode)
+  { return this->Here(ev, outToken, outNode); }
+  
+  mork_change*
+  CutHereNode(morkEnv* ev, mork_token* outToken, morkNode** outNode)
+  { return this->CutHere(ev, outToken, outNode); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKNODEMAP_ */

mozilla/db/mork/src/morkObject.cpp

@@ -0,0 +1,119 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+#ifndef _MORKHANDLE_
+#include "morkHandle.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkObject::CloseMorkNode(morkEnv* ev) // CloseObject() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseObject(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkObject::~morkObject() // assert CloseObject() executed earlier
+{
+  MORK_ASSERT(mObject_Handle==0);
+}
+
+/*public non-poly*/
+morkObject::morkObject(const morkUsage& inUsage, nsIMdbHeap* ioHeap)
+: morkNode(inUsage, ioHeap)
+, mObject_Handle( 0 )
+{
+}
+
+/*public non-poly*/
+morkObject::morkObject(morkEnv* ev,
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap, morkHandle* ioHandle)
+: morkNode(ev, inUsage, ioHeap)
+, mObject_Handle( 0 )
+{
+  if ( ev->Good() )
+  {
+    if ( ioHandle )
+      morkHandle::SlotWeakHandle(ioHandle, ev, &mObject_Handle);
+      
+    if ( ev->Good() )
+      mNode_Derived = morkDerived_kObject;
+  }
+}
+
+/*public non-poly*/ void
+morkObject::CloseObject(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      if ( !this->IsShutNode() )
+      {
+        if ( mObject_Handle )
+          morkHandle::SlotWeakHandle((morkHandle*) 0L, ev, &mObject_Handle);
+        this->MarkShut();
+      }
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+
+//void morkObject::NewNilHandleError(morkEnv* ev) // mObject_Handle is nil
+//{
+//  ev->NewError("nil mObject_Handle");
+//}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkObject.h

@@ -0,0 +1,94 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKOBJECT_
+#define _MORKOBJECT_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kObject   /*i*/ 0x6F42 /* ascii 'oB' */
+
+/*| morkObject: subclass of morkNode that adds knowledge of db suite factory
+**| and containing port to those objects that are exposed as instances of
+**| nsIMdbObject in the public interface.
+|*/
+class morkObject : public morkNode { 
+
+// public: // slots inherited from morkNode (meant to inform only)
+  // nsIMdbHeap*    mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+  
+public: // state is public because the entire Mork system is private
+
+  morkHandle*      mObject_Handle;   // weak ref to handle for this object
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseObject() only if open
+  virtual ~morkObject(); // assert that CloseObject() executed earlier
+  
+protected: // special case construction of first env without preceding env
+  morkObject(const morkUsage& inUsage, nsIMdbHeap* ioHeap);
+  
+public: // morkEnv construction & destruction
+  morkObject(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap, 
+     morkHandle* ioHandle); // ioHandle can be nil
+  void CloseObject(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkObject(const morkObject& other);
+  morkObject& operator=(const morkObject& other);
+
+public: // dynamic type identification
+  mork_bool IsObject() const
+  { return IsNode() && mNode_Derived == morkDerived_kObject; }
+// } ===== end morkNode methods =====
+
+  // void NewNilHandleError(morkEnv* ev); // mObject_Handle is nil
+  
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakObject(morkObject* me,
+    morkEnv* ev, morkObject** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongObject(morkObject* me,
+    morkEnv* ev, morkObject** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKOBJECT_ */

mozilla/db/mork/src/morkParser.cpp

@@ -0,0 +1,412 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKPARSER_
+#include "morkParser.h"
+#endif
+
+#ifndef _MORKSTREAM_
+#include "morkStream.h"
+#endif
+
+#ifndef _MORKBLOB_
+#include "morkBlob.h"
+#endif
+
+#ifndef _MORKSINK_
+#include "morkSink.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkParser::CloseMorkNode(morkEnv* ev) /*i*/ // CloseParser() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseParser(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkParser::~morkParser() /*i*/ // assert CloseParser() executed earlier
+{
+  MORK_ASSERT(mParser_Heap==0);
+  MORK_ASSERT(mParser_Stream==0);
+}
+
+/*public non-poly*/
+morkParser::morkParser(morkEnv* ev, /*i*/
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap, 
+  morkStream* ioStream, mdb_count inBytesPerParseSegment,
+  nsIMdbHeap* ioSlotHeap)
+: morkNode(ev, inUsage, ioHeap)
+, mParser_Heap( 0 )
+, mParser_Stream( 0 )
+, mParser_MoreGranularity( inBytesPerParseSegment )
+, mParser_State( morkParser_kStartState )
+
+, mParser_GroupContentStartPos( 0 )
+
+, mParser_TableId( 0 )
+, mParser_RowId( 0 )
+    
+, mParser_InPort( morkBool_kFalse )
+, mParser_InDict( morkBool_kFalse )
+, mParser_InCell( morkBool_kFalse )
+, mParser_InMeta( morkBool_kFalse )
+    
+, mParser_InPortRow( morkBool_kFalse )
+, mParser_IsBroken( morkBool_kFalse )
+, mParser_IsDone( morkBool_kFalse )
+    
+, mParser_Alias()
+
+, mParser_ScopeSpool(ev, ioHeap)
+, mParser_ValueSpool(ev, ioHeap)
+, mParser_ColumnSpool(ev, ioHeap)
+, mParser_StringSpool(ev, ioHeap)
+
+, mParser_ScopeSink(ev, &mParser_ScopeSpool)
+, mParser_ValueSink(ev, &mParser_ValueSpool)
+, mParser_ColumnSink(ev, &mParser_ColumnSpool)
+, mParser_StringSink(ev, &mParser_StringSpool)
+
+, mParser_AliasYarn(ev, morkUsage_kMember, ioHeap)
+{
+  ev->StubMethodOnlyError();
+  
+  if ( inBytesPerParseSegment < morkParser_kMinGranularity )
+    inBytesPerParseSegment = morkParser_kMinGranularity;
+  else if ( inBytesPerParseSegment > morkParser_kMaxGranularity )
+    inBytesPerParseSegment = morkParser_kMaxGranularity;
+    
+  mParser_MoreGranularity = inBytesPerParseSegment;
+  
+  if ( ev->Good() )
+  {
+    mParser_Tag = morkParser_kTag;
+    mNode_Derived = morkDerived_kParser;
+  }
+}
+
+/*public non-poly*/ void
+morkParser::CloseParser(morkEnv* ev) /*i*/ // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      if ( !this->IsShutNode() )
+      {
+        mParser_ScopeSpool.CloseSpool(ev);
+        mParser_ValueSpool.CloseSpool(ev);
+        mParser_ColumnSpool.CloseSpool(ev);
+        mParser_StringSpool.CloseSpool(ev);
+        nsIMdbHeap_SlotStrongHeap((nsIMdbHeap*) 0, ev, &mParser_Heap);
+        morkStream::SlotStrongStream((morkStream*) 0, ev, &mParser_Stream);
+        this->MarkShut();
+      }
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*public non-poly*/ void
+morkParser::SetParserStream(morkEnv* ev, morkStream* ioStream)
+{
+  morkStream* stream = mParser_Stream;
+  if ( stream )
+  {
+    mParser_Stream = 0;
+    stream->CutStrongRef(ev);
+  }
+  if ( ioStream && ioStream->AddStrongRef(ev) )
+    mParser_Stream = ioStream;
+}
+
+/*protected non-poly*/ void
+morkParser::NonGoodParserError(morkEnv* ev) // when GoodParserTag() is false
+{
+  ev->NewError("non-morkNode");
+}
+
+/*protected non-poly*/ void
+morkParser::NonUsableParserError(morkEnv* ev) //
+{
+  if ( this->IsNode() )
+  {
+    if ( this->IsOpenNode() )
+    {
+      if (  this->GoodParserTag() )
+      {
+         // okay
+      }
+      else
+        this->NonGoodParserError(ev);
+    }
+    else
+      this->NonOpenNodeError(ev);
+  }
+  else
+    this->NonNodeError(ev);
+}
+
+
+/*protected non-poly*/ void
+morkParser::StartParse(morkEnv* ev)
+{
+}
+
+/*protected non-poly*/ void
+morkParser::StopParse(morkEnv* ev)
+{
+   if ( mParser_InCell )
+   {
+      mParser_InCell = morkBool_kFalse;
+      mParser_CellSpan.SetEndWithEnd(mParser_PortSpan);
+      this->OnCellEnd(ev, mParser_CellSpan);
+   }
+   if ( mParser_InMeta )
+   {
+      mParser_InMeta = morkBool_kFalse;
+      mParser_MetaSpan.SetEndWithEnd(mParser_PortSpan);
+      this->OnMetaEnd(ev, mParser_MetaSpan);
+   }
+   if ( mParser_InPortRow )
+   {
+      mParser_InPortRow = morkBool_kFalse;
+      mParser_RowSpan.SetEndWithEnd(mParser_PortSpan);
+      this->OnPortRowEnd(ev, mParser_RowSpan);
+   }
+   if ( mParser_RowId )
+   {
+      mParser_RowId = 0;
+      mParser_RowSpan.SetEndWithEnd(mParser_PortSpan);
+      this->OnRowEnd(ev, mParser_RowSpan);
+   }
+   if ( mParser_TableId )
+   {
+      mParser_TableId = 0;
+      mParser_TableSpan.SetEndWithEnd(mParser_PortSpan);
+      this->OnTableEnd(ev, mParser_TableSpan);
+   }
+   if ( mParser_GroupId )
+   {
+      mParser_GroupId = 0;
+      mParser_GroupSpan.SetEndWithEnd(mParser_PortSpan);
+      this->OnGroupAbortEnd(ev, mParser_GroupSpan);
+   }
+   if ( mParser_InPort )
+   {
+      mParser_InPort = morkBool_kFalse;
+      this->OnPortEnd(ev, mParser_PortSpan);
+   }
+}
+
+///*protected non-poly*/ int
+//morkParser::NextChar(morkEnv* ev)
+//{
+//}
+
+/*protected non-poly*/ int
+morkParser::NextChar(morkEnv* ev) // next non-white content
+{
+  register int c; // the most heavily used character variable
+  int outChar = -1; // the byte to return from this method
+  int d; // the byte after c on some occasions
+  morkStream* s = mParser_Stream;
+  if ( s )
+  {
+    while ( outChar == -1 && ev->Good() )
+    {
+      while ( (c = s->Getc(ev)) != EOF && ev->Good() )
+      {
+        if ( c == 0xA || c == 0xD ) // end of line?
+        {
+          this->AddLine();
+          d = s->Getc(ev); // look for another byte in #xA #xD, or  #xD #xA
+          if (( d == 0xA || d == 0xD ) && c != d ) // eat this one too?
+          {
+          }
+          else if ( d != EOF ) // not trying to push back end of file
+            s->Ungetc(d);
+        }
+      }
+
+      if ( c == '/' ) // maybe start of comment?
+      {
+        int depth = 0;
+      }
+      else if ( c == '\\' ) // maybe start of line continuation?
+      {
+        if ( (c = s->Getc(ev)) == 0xA || c == 0xD )
+         ;
+      }
+      
+      if ( c == EOF ) // reached end of file?
+      {
+        if ( outChar == -1 )
+          outChar = 1; // end while loop
+        mParser_DoMore = morkBool_kFalse;
+        mParser_IsDone = morkBool_kTrue;
+      }
+    }
+
+    this->SetHerePos(s->Tell(ev));
+  }
+  else // nil stream pointer
+  {
+    ev->NilPointerError();
+    mParser_State = morkParser_kBrokenState;
+    mParser_DoMore = morkBool_kFalse;
+    mParser_IsDone = morkBool_kTrue;
+    mParser_IsBroken = morkBool_kTrue;
+  }
+  return outChar;
+}
+
+/*protected non-poly*/ void
+morkParser::ParseLoop(morkEnv* ev)
+{
+  mParser_Change = morkChange_kNil;
+  mParser_DoMore = morkBool_kTrue;
+            
+  while ( mParser_DoMore )
+  {
+    switch ( mParser_State )
+    {
+      case morkParser_kCellState: // 0
+        break;
+      case morkParser_kMetaState: // 1
+        break;
+      case morkParser_kRowState: // 2
+        break;
+      case morkParser_kTableState: // 3
+        break;
+      case morkParser_kDictState: // 4
+        break;
+      case morkParser_kPortState: // 5
+        break;
+        
+      case morkParser_kStartState: // 6
+        {
+          morkStream* s = mParser_Stream;
+          if ( s && s->IsNode() && s->IsOpenNode() )
+          {
+            this->StartParse(ev);
+            mParser_State = morkParser_kPortState;
+          }
+          else
+          {
+            mParser_State = morkParser_kBrokenState;
+            ev->NilPointerError();
+          }
+        }
+        break;
+       
+      case morkParser_kDoneState: // 7
+        mParser_DoMore = morkBool_kFalse;
+        mParser_IsDone = morkBool_kTrue;
+        this->StopParse(ev);
+        break;
+      case morkParser_kBrokenState: // 8
+        mParser_DoMore = morkBool_kFalse;
+        mParser_IsBroken = morkBool_kTrue;
+        this->StopParse(ev);
+        break;
+      default: // ?
+        MORK_ASSERT(morkBool_kFalse);
+        mParser_State = morkParser_kBrokenState;
+        break;
+    }
+  }
+}
+    
+/*public non-poly*/ mdb_count
+morkParser::ParseMore( // return count of bytes consumed now
+    morkEnv* ev,          // context
+    mork_pos* outPos,     // current byte pos in the stream afterwards
+    mork_bool* outDone,   // is parsing finished?
+    mork_bool* outBroken  // is parsing irreparably dead and broken?
+  )
+{
+  mdb_count outCount = 0;
+  if ( this->IsNode() && this->GoodParserTag() && this->IsOpenNode() )
+  {
+    mork_pos startPos = this->HerePos();
+
+    if ( !mParser_IsDone && !mParser_IsBroken )
+      this->ParseLoop(ev);
+  
+    mork_pos endPos = this->HerePos();
+    if ( outDone )
+      *outDone = mParser_IsDone;
+    if ( outBroken )
+      *outBroken = mParser_IsBroken;
+    if ( outPos )
+      *outPos = endPos;
+      
+    if ( endPos > startPos )
+      outCount = endPos - startPos;
+  }
+  else
+  {
+    this->NonUsableParserError(ev);
+    if ( outDone )
+      *outDone = morkBool_kTrue;
+    if ( outBroken )
+      *outBroken = morkBool_kTrue;
+    if ( outPos )
+      *outPos = 0;
+  }
+  return outCount;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkParser.h

@@ -0,0 +1,450 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKPARSER_
+#define _MORKPARSER_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKPARSER_
+#include "morkParser.h"
+#endif
+
+#ifndef _MORKBLOB_
+#include "morkBlob.h"
+#endif
+
+#ifndef _MORKSINK_
+#include "morkSink.h"
+#endif
+
+#ifndef _MORKYARN_
+#include "morkYarn.h"
+#endif
+
+#ifndef _MORKCELL_
+#include "morkCell.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+ 
+/*=============================================================================
+ * morkPlace: stream byte position and stream line count
+ */
+
+class morkPlace {
+public:
+  mork_pos   mPlace_Pos;   // byte offset in an input stream
+  mork_line  mPlace_Line;  // line count in an input stream
+  
+  void ClearPlace()
+  {
+    mPlace_Pos = 0; mPlace_Line = 0;
+  }
+
+  void SetPlace(mork_pos inPos, mork_line inLine)
+  {
+    mPlace_Pos = inPos; mPlace_Line = inLine;
+  }
+
+  morkPlace() { mPlace_Pos = 0; mPlace_Line = 0; }
+  
+  morkPlace(mork_pos inPos, mork_line inLine)
+  { mPlace_Pos = inPos; mPlace_Line = inLine; }
+};
+
+/*=============================================================================
+ * morkGlitch: stream place and error comment describing a parsing error
+ */
+
+class morkGlitch {
+public:
+  morkPlace    mGlitch_Place;   // place in stream where problem happened
+  const char*  mGlitch_Comment; // null-terminated ASCII C string
+
+  morkGlitch() { mGlitch_Comment = 0; }
+};
+
+/*=============================================================================
+ * morkAlias: all possible ways needed to express an alias ID in Mork syntax
+ */
+
+/*| morkAlias: an abstraction of all the variations we might need to support
+**| in order to present an ID through the parser interface most cheaply and
+**| with minimum transformation away from the original text format.
+**|
+**|| An ID can have one of four forms:
+**| 1) idHex            (mAlias_Oid.mOid_Id <- idHex)
+**| 2) idHex:^scopeHex  (mAlias_Oid.mOid_Id <- idHex, mOid_Scope <- scopeHex)
+**| 3) idHex:scopeName  (mAlias_Oid.mOid_Id <- idHex, mAlias_Buf <- scopeName)
+**| 4) columnName       (mAlias_Buf <- columnName, for columns in cells only)
+**|
+**|| Typically, mAlias_Oid.mOid_Id will hold a nonzero integer value for
+**| an ID, but we might have an optional scope specified by either an integer
+**| in hex format, or a string name.  (Note that while the first ID can be
+**| scoped variably, any integer ID for a scope is assumed always located in
+**| the same scope, so the second ID need not be disambiguated.)
+**|
+**|| The only time mAlias_Oid.mOid_Id is ever zero is when mAlias_Buf alone
+**| is nonzero, to indicate an explicit string instead of an alias appeared.
+**| This case happens to make the representation of columns in cells somewhat
+**| easier to represent, since columns can just appear as a string name; and
+**| this unifies those interfaces with row and table APIs expecting IDs.
+**|
+**|| So when the parser passes an instance of morkAlias to a subclass, the 
+**| mAlias_Oid.mOid_Id slot should usually be nonzero.  And the other two
+**| slots, mAlias_Oid.mOid_Scope and mAlias_Buf, might both be zero, or at
+**| most one of them will be nonzero to indicate an explicit scope; the
+**| parser is responsible for ensuring at most one of these is nonzero.
+|*/
+class morkAlias {
+public:
+  mdbOid          mAlias_Oid;  // mOid_Scope is zero when not specified
+  const morkBuf*  mAlias_Buf;  // points to some specific buf subclass
+  
+  morkAlias()
+  { mAlias_Oid.mOid_Scope = 0; mAlias_Oid.mOid_Id = morkId_kMinusOne;
+   mAlias_Buf = 0; }
+};
+
+/*=============================================================================
+ * morkSpan: start and end stream byte position and stream line count
+ */
+
+class morkSpan {
+public:
+  morkPlace   mSpan_Start;
+  morkPlace   mSpan_End;
+
+public: // methods
+  
+public: // inlines
+  morkSpan() { } // use inline empty constructor for each place
+  
+  void SetSpan(mork_pos inFromPos, mork_line inFromLine,
+    mork_pos inToPos, mork_line inToLine)
+  {
+    mSpan_Start.SetPlace(inFromPos, inFromLine);
+    mSpan_End.SetPlace(inToPos,inToLine);
+  }
+
+  // setting end, useful to terminate a span using current port span end:
+  void SetEndWithEnd(const morkSpan& inSpan) // end <- span.end
+  { mSpan_End = inSpan.mSpan_End; }
+
+  // setting start, useful to initiate a span using current port span end:
+  void SetStartWithEnd(const morkSpan& inSpan) // start <- span.end
+  { mSpan_Start = inSpan.mSpan_End; }
+  
+  void ClearSpan()
+  {
+    mSpan_Start.mPlace_Pos = 0; mSpan_Start.mPlace_Line = 0;
+    mSpan_End.mPlace_Pos = 0; mSpan_End.mPlace_Line = 0;
+  }
+
+  morkSpan(mork_pos inFromPos, mork_line inFromLine,
+    mork_pos inToPos, mork_line inToLine)
+  : mSpan_Start(inFromPos, inFromLine), mSpan_End(inToPos, inToLine)
+  {  /* empty implementation */ }
+};
+
+/*=============================================================================
+ * morkParser: for parsing Mork text syntax
+ */
+
+#define morkParser_kMinGranularity 512 /* parse at least half 0.5K at once */
+#define morkParser_kMaxGranularity (64 * 1024) /* parse at most 64 K at once */
+
+#define morkDerived_kParser     /*i*/ 0x5073 /* ascii 'Ps' */
+#define morkParser_kTag     /*i*/ 0x70417253 /* ascii 'pArS' */
+
+// These are states for the simple parsing virtual machine.  Needless to say,
+// these must be distinct, and preferrably in a contiguous integer range.
+// Don't change these constants without looking at switch statements in code.
+#define morkParser_kCellState      0 /* cell is tightest scope */
+#define morkParser_kMetaState      1 /* meta is tightest scope */
+#define morkParser_kRowState       2 /* row is tightest scope */
+#define morkParser_kTableState     3 /* table is tightest scope */
+#define morkParser_kDictState      4 /* dict is tightest scope */
+#define morkParser_kPortState      5 /* port is tightest scope */
+
+#define morkParser_kStartState     6 /* parsing has not yet begun */
+#define morkParser_kDoneState      7 /* parsing is complete */
+#define morkParser_kBrokenState    8 /* parsing is to broken to work */
+
+class morkParser /*d*/ : public morkNode {
+
+// public: // slots inherited from morkNode (meant to inform only)
+  // nsIMdbHeap*       mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+protected: // protected morkParser members
+  
+  nsIMdbHeap*      mParser_Heap;   // refcounted heap used for allocation
+  morkStream*   mParser_Stream; // refcounted input stream
+
+  mork_u4       mParser_Tag; // must equal morkParser_kTag
+  mork_count    mParser_MoreGranularity; // constructor inBytesPerParseSegment
+
+  mork_u4       mParser_State; // state where parser should resume
+
+  // after finding ends of group transactions, we can re-seek the start:
+  mork_pos      mParser_GroupContentStartPos; // start of this group
+
+  mork_gid      mParser_GroupId; // group ID if inside a group
+  mork_tid      mParser_TableId; // table ID if inside a table
+  mork_rid      mParser_RowId;   // row ID if inside a row
+
+  mork_bool     mParser_InPort;  // called OnNewPort but not OnPortEnd?
+  mork_bool     mParser_InDict;  // called OnNewDict but not OnDictEnd?
+  mork_bool     mParser_InCell;  // called OnNewCell but not OnCellEnd?
+  mork_bool     mParser_InMeta;  // called OnNewMeta but not OnMetaEnd?
+
+  mork_bool     mParser_InPortRow;  // called OnNewPortRow but not OnPortRowEnd?
+  mork_bool     mParser_IsBroken;   // has the parse become broken?
+  mork_bool     mParser_IsDone;     // has the parse finished?
+  mork_bool     mParser_DoMore;     // mParser_MoreGranularity not exhausted? 
+
+  mork_change   mParser_Change;  // driven by modifier in text 
+
+  morkAlias     mParser_Alias;   // current alias being parsed
+  // note that mParser_Alias.mAlias_Buf points at mParser_ScopeSpool below:
+
+  // blob spools allocated in mParser_Heap
+  morkSpool     mParser_ScopeSpool;   // place to accumulate ID scope blobs
+  morkSpool     mParser_ValueSpool;   // place to accumulate value blobs
+  morkSpool     mParser_ColumnSpool;  // place to accumulate column blobs
+  morkSpool     mParser_StringSpool;  // place to accumulate string blobs
+
+  morkSpoolSink mParser_ScopeSink;  // writes to mParser_ScopeSpool
+  morkSpoolSink mParser_ValueSink;  // writes to mParser_ValueSpool
+  morkSpoolSink mParser_ColumnSink; // writes to mParser_ColumnSpool
+  morkSpoolSink mParser_StringSink; // writes to mParser_StringSpool
+
+  // yarns allocated in mParser_Heap
+  morkYarn      mParser_AliasYarn;   // place to receive from AliasToYarn()
+
+  // span showing current ongoing file position status:
+  morkSpan      mParser_PortSpan; // span of current db port file
+
+  // various spans denoting nested subspaces inside the file's port span:
+  morkSpan      mParser_GroupSpan; // span of current transaction group
+  morkSpan      mParser_DictSpan;
+  morkSpan      mParser_AliasSpan;
+  morkSpan      mParser_MetaSpan;
+  morkSpan      mParser_TableSpan;
+  morkSpan      mParser_RowSpan;
+  morkSpan      mParser_CellSpan;
+  morkSpan      mParser_ColumnSpan;
+  morkSpan      mParser_SlotSpan;
+
+private: // convenience inlines
+
+  mork_pos HerePos() const
+  { return mParser_PortSpan.mSpan_End.mPlace_Pos; }
+
+  void SetHerePos(mork_pos inPos)
+  { mParser_PortSpan.mSpan_End.mPlace_Pos = inPos; }
+
+  void AddLine()
+  { ++ mParser_PortSpan.mSpan_End.mPlace_Line; }
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseParser() only if open
+  virtual ~morkParser(); // assert that CloseParser() executed earlier
+  
+public: // morkYarn construction & destruction
+  morkParser(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+    morkStream* ioStream,  // the readonly stream for input bytes
+    mdb_count inBytesPerParseSegment, // target for ParseMore()
+    nsIMdbHeap* ioSlotHeap);
+      
+  void CloseParser(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkParser(const morkParser& other);
+  morkParser& operator=(const morkParser& other);
+
+public: // dynamic type identification
+  mork_bool IsParser() const
+  { return IsNode() && mNode_Derived == morkDerived_kParser; }
+  
+// } ===== end morkNode methods =====
+
+public: // typing
+  void NonParserTypeError(morkEnv* ev);
+
+public: // other type methods
+  mork_bool GoodParserTag() const { return mParser_Tag == morkParser_kTag; }
+  void NonGoodParserError(morkEnv* ev);
+  void NonUsableParserError(morkEnv* ev);
+  // call when IsNode() or GoodParserTag() is false
+  
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // in virtual morkParser methods, data flow subclass to parser
+
+    virtual void AliasToYarn(morkEnv* ev,
+      const morkAlias& inAlias,  // typically an alias to concat with strings
+      mdbYarn* outYarn) = 0;
+    // The parser might ask that some aliases be turned into yarns, so they
+    // can be concatenated into longer blobs under some circumstances.  This
+    // is an alternative to using a long and complex callback for many parts
+    // for a single cell value.
+  
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // out virtual morkParser methods, data flow parser to subclass
+
+// The virtual methods below will be called in a pattern corresponding
+// to the following grammar isomorphic to the Mork grammar.  There should
+// be no exceptions, so subclasses can rely on seeing an appropriate "end"
+// method whenever some "new" method has been seen earlier.  In the event
+// that some error occurs that causes content to be flushed, or sudden early
+// termination of a larger containing entity, we will always call a more
+// enclosed "end" method before we call an "end" method with greater scope.
+
+// Note the "mp" prefix stands for "Mork Parser":
+
+// mp:Start     ::= OnNewPort mp:PortItem* OnPortEnd
+// mp:PortItem  ::= mp:Content | mp:Group | OnPortGlitch
+// mp:Group     ::= OnNewGroup mp:GroupItem* mp:GroupEnd
+// mp:GroupItem ::= mp:Content | OnGroupGlitch
+// mp:GroupEnd  ::= OnGroupCommitEnd | OnGroupAbortEnd
+// mp:Content   ::= mp:PortRow | mp:Dict | mp:Table | mp:Row
+// mp:PortRow   ::= OnNewPortRow mp:RowItem* OnPortRowEnd
+// mp:Dict      ::= OnNewDict mp:DictItem* OnDictEnd
+// mp:DictItem  ::= OnAlias | OnAliasGlitch | mp:Meta | OnDictGlitch
+// mp:Table     ::= OnNewTable mp:TableItem* OnTableEnd
+// mp:TableItem ::= mp:Row | mp:Meta | OnTableGlitch
+// mp:Meta      ::= OnNewMeta mp:MetaItem* OnMetaEnd
+// mp:MetaItem  ::= mp:Cell | OnMetaGlitch
+// mp:Row       ::= OnNewRow mp:RowItem* OnRowEnd
+// mp:RowItem   ::= mp:Cell | mp:Meta | OnRowGlitch
+// mp:Cell      ::= OnNewCell mp:CellItem? OnCellEnd
+// mp:CellItem  ::= mp:Slot | OnCellForm | OnCellGlitch
+// mp:Slot      ::= OnValue | OnValueAlias | OnRowAlias | OnTableAlias
+
+
+  // Note that in interfaces below, mork_change parameters kAdd and kNil
+  // both mean about the same thing by default.  Only kCut is interesting,
+  // because this usually means to remove members instead of adding them.
+
+  virtual void OnNewPort(morkEnv* ev, const morkPlace& inPlace) = 0;
+  virtual void OnPortGlitch(morkEnv* ev, const morkGlitch& inGlitch) = 0;  
+  virtual void OnPortEnd(morkEnv* ev, const morkSpan& inSpan) = 0;  
+
+  virtual void OnNewGroup(morkEnv* ev, const morkPlace& inPlace, mork_gid inGid) = 0;
+  virtual void OnGroupGlitch(morkEnv* ev, const morkGlitch& inGlitch) = 0;  
+  virtual void OnGroupCommitEnd(morkEnv* ev, const morkSpan& inSpan) = 0;  
+  virtual void OnGroupAbortEnd(morkEnv* ev, const morkSpan& inSpan) = 0;  
+
+  virtual void OnNewPortRow(morkEnv* ev, const morkPlace& inPlace, 
+    const morkAlias& inAlias, mork_change inChange) = 0;
+  virtual void OnPortRowGlitch(morkEnv* ev, const morkGlitch& inGlitch) = 0;  
+  virtual void OnPortRowEnd(morkEnv* ev, const morkSpan& inSpan) = 0;  
+
+  virtual void OnNewTable(morkEnv* ev, const morkPlace& inPlace,
+    const morkAlias& inAlias, mork_change inChange) = 0;
+  virtual void OnTableGlitch(morkEnv* ev, const morkGlitch& inGlitch) = 0;
+  virtual void OnTableEnd(morkEnv* ev, const morkSpan& inSpan) = 0;
+    
+  virtual void OnNewMeta(morkEnv* ev, const morkPlace& inPlace) = 0;
+  virtual void OnMetaGlitch(morkEnv* ev, const morkGlitch& inGlitch) = 0;
+  virtual void OnMetaEnd(morkEnv* ev, const morkSpan& inSpan) = 0;
+
+  virtual void OnNewRow(morkEnv* ev, const morkPlace& inPlace, 
+    const morkAlias& inAlias, mork_change inChange) = 0;
+  virtual void OnRowGlitch(morkEnv* ev, const morkGlitch& inGlitch) = 0;  
+  virtual void OnRowEnd(morkEnv* ev, const morkSpan& inSpan) = 0;  
+
+  virtual void OnNewDict(morkEnv* ev, const morkPlace& inPlace) = 0;
+  virtual void OnDictGlitch(morkEnv* ev, const morkGlitch& inGlitch) = 0;  
+  virtual void OnDictEnd(morkEnv* ev, const morkSpan& inSpan) = 0;  
+
+  virtual void OnAlias(morkEnv* ev, const morkSpan& inSpan,
+    const morkAlias& inAlias) = 0;
+
+  virtual void OnAliasGlitch(morkEnv* ev, const morkGlitch& inGlitch) = 0;
+
+  virtual void OnNewCell(morkEnv* ev, const morkPlace& inPlace,
+    const morkAlias& inAlias, mork_change inChange) = 0;
+  virtual void OnCellGlitch(morkEnv* ev, const morkGlitch& inGlitch) = 0;
+  virtual void OnCellForm(morkEnv* ev, mork_cscode inCharsetFormat) = 0;
+  virtual void OnCellEnd(morkEnv* ev, const morkSpan& inSpan) = 0;
+    
+  virtual void OnValue(morkEnv* ev, const morkSpan& inSpan,
+    const morkBuf& inBuf) = 0;
+
+  virtual void OnValueAlias(morkEnv* ev, const morkSpan& inSpan,
+    const morkAlias& inAlias) = 0;
+
+  virtual void OnRowAlias(morkEnv* ev, const morkSpan& inSpan,
+    const morkAlias& inAlias) = 0;
+
+  virtual void OnTableAlias(morkEnv* ev, const morkSpan& inSpan,
+    const morkAlias& inAlias) = 0;
+  
+// ````` ````` ````` `````   ````` ````` ````` `````  
+protected: // protected parser helper methods
+
+   void ParseLoop(morkEnv* ev); // find parse continuation and resume
+   
+   void StartParse(morkEnv* ev); // prepare for parsing
+   void StopParse(morkEnv* ev); // terminate parsing & call needed methods
+  
+   int NextChar(morkEnv* ev); // next non-white content
+  
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // public non-poly morkParser methods
+
+  void SetParserStream(morkEnv* ev, morkStream* ioStream);
+    
+  mdb_count ParseMore( // return count of bytes consumed now
+    morkEnv* ev,          // context
+    mork_pos* outPos,     // current byte pos in the stream afterwards
+    mork_bool* outDone,   // is parsing finished?
+    mork_bool* outBroken  // is parsing irreparably dead and broken?
+  );
+  
+  
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakParser(morkParser* me,
+    morkEnv* ev, morkParser** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongParser(morkParser* me,
+    morkEnv* ev, morkParser** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKPARSER_ */

mozilla/db/mork/src/morkPool.cpp

@@ -0,0 +1,366 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+#ifndef _MORKATOM_
+#include "morkAtom.h"
+#endif
+
+#ifndef _MORKHANDLE_
+#include "morkHandle.h"
+#endif
+
+#ifndef _MORKCELL_
+#include "morkCell.h"
+#endif
+
+#ifndef _MORKROW_
+#include "morkRow.h"
+#endif
+
+#ifndef _MORKBLOB_
+#include "morkBlob.h"
+#endif
+
+#ifndef _MORKDEQUE_
+#include "morkDeque.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkPool::CloseMorkNode(morkEnv* ev) // ClosePool() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->ClosePool(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkPool::~morkPool() // assert ClosePool() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkPool::morkPool(const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+  nsIMdbHeap* ioSlotHeap)
+: morkNode(inUsage, ioHeap)
+, mPool_Heap( ioSlotHeap )
+{
+  // mPool_Heap is NOT refcounted
+  MORK_ASSERT(ioSlotHeap);
+  if ( ioSlotHeap )
+    mNode_Derived = morkDerived_kPool;
+}
+
+/*public non-poly*/
+morkPool::morkPool(morkEnv* ev,
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+: morkNode(ev, inUsage, ioHeap)
+, mPool_Heap( ioSlotHeap )
+{
+  if ( ioSlotHeap )
+  {
+    // mPool_Heap is NOT refcounted:
+    // nsIMdbHeap_SlotStrongHeap(ioSlotHeap, ev, &mPool_Heap);
+    if ( ev->Good() )
+      mNode_Derived = morkDerived_kPool;
+  }
+  else
+    ev->NilPointerError();
+}
+
+/*public non-poly*/ void
+morkPool::ClosePool(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      // mPool_Heap is NOT refcounted:
+      // nsIMdbHeap_SlotStrongHeap((nsIMdbHeap*) 0, ev, &mPool_Heap);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+
+// alloc and free individual instances of handles (inside hand frames):
+morkHandleFace*
+morkPool::NewHandle(morkEnv* ev, mork_size inSize)
+{
+  void* newBlock = 0;
+  mPool_Heap->Alloc(ev->AsMdbEnv(), inSize, (void**) &newBlock);
+  return (morkHandleFace*) newBlock;
+}
+
+void
+morkPool::ZapHandle(morkEnv* ev, morkHandleFace* ioHandle)
+{
+  if ( ioHandle )
+    mPool_Heap->Free(ev->AsMdbEnv(), ioHandle);
+}
+
+// alloc and free individual instances of rows:
+morkRow*
+morkPool::NewRow(morkEnv* ev) // allocate a new row instance
+{
+  morkRow* newRow = 0;
+  mPool_Heap->Alloc(ev->AsMdbEnv(), sizeof(morkRow), (void**) &newRow);
+  if ( newRow )
+    MORK_MEMSET(newRow, 0, sizeof(morkRow));
+  
+  if ( newRow )
+  {
+  }
+  return newRow;
+}
+
+void
+morkPool::ZapRow(morkEnv* ev, morkRow* ioRow) // free old row instance
+{
+  if ( ioRow )
+    mPool_Heap->Free(ev->AsMdbEnv(), ioRow);
+}
+
+// alloc and free entire vectors of cells (not just one cell at a time)
+morkCell*
+morkPool::NewCells(morkEnv* ev, mork_size inSize)
+{
+  morkCell* newCells = 0;
+  mork_size size = inSize * sizeof(morkCell);
+  if ( size )
+    mPool_Heap->Alloc(ev->AsMdbEnv(), size, (void**) &newCells);
+    
+  // note morkAtom depends on having nil stored in all new mCell_Atom slots:
+  if ( newCells )
+    MORK_MEMSET(newCells, 0, size);
+  return newCells;
+}
+
+void
+morkPool::ZapCells(morkEnv* ev, morkCell* ioVector, mork_size inSize)
+{
+  if ( ioVector )
+    mPool_Heap->Free(ev->AsMdbEnv(), ioVector);
+}
+
+// resize (grow or trim) cell vectors inside a containing row instance
+mork_bool
+morkPool::AddRowCells(morkEnv* ev, morkRow* ioRow, mork_size inNewSize)
+{
+  // note strong implementation similarity to morkArray::Grow()
+
+  mork_fill fill = ioRow->mRow_Length;
+  if ( ev->Good() && fill < inNewSize ) // need more cells?
+  {
+    morkCell* newCells = this->NewCells(ev, inNewSize);
+    if ( newCells )
+    {
+      morkCell* c = newCells; // for iterating during copy
+      morkCell* oldCells = ioRow->mRow_Cells;
+      morkCell* end = oldCells + fill; // copy all the old cells
+      while ( oldCells < end )
+      {
+        *c++ = *oldCells++; // bitwise copy each old cell struct
+      }
+      oldCells = ioRow->mRow_Cells;
+      ioRow->mRow_Cells = newCells;
+      ioRow->mRow_Length = inNewSize;
+      ++ioRow->mRow_Seed;
+      
+      this->ZapCells(ev, oldCells, fill);
+    }
+  }
+  return ( ev->Good() && ioRow->mRow_Length >= inNewSize );
+}
+
+mork_bool
+morkPool::CutRowCells(morkEnv* ev, morkRow* ioRow,
+  mork_size inNewSize)
+{
+  mork_fill fill = ioRow->mRow_Length;
+  if ( ev->Good() && fill > inNewSize ) // need fewer cells?
+  {
+    morkCell* newCells = this->NewCells(ev, inNewSize);
+    if ( newCells )
+    {
+      morkCell* oldCells = ioRow->mRow_Cells;
+      morkCell* oldEnd = oldCells + fill; // one past all old cells
+      morkCell* newEnd = oldCells + inNewSize; // copy only kept old cells
+      while ( oldCells < newEnd )
+      {
+        *newCells++ = *oldCells++; // bitwise copy each old cell struct
+      }
+      while ( oldCells < oldEnd )
+      {
+        if ( oldCells->mCell_Atom ) // need to unref old cell atom?
+          oldCells->SetAtom(ev, (morkAtom*) 0, this); // unref cell atom
+        ++oldCells;
+      }
+      oldCells = ioRow->mRow_Cells;
+      ioRow->mRow_Cells = newCells;
+      ioRow->mRow_Length = inNewSize;
+      ++ioRow->mRow_Seed;
+      
+      this->ZapCells(ev, oldCells, fill);
+    }
+  }
+  return ( ev->Good() && ioRow->mRow_Length <= inNewSize );
+}
+
+// alloc & free individual instances of atoms (lots of atom subclasses):
+void
+morkPool::ZapAtom(morkEnv* ev, morkAtom* ioAtom) // any subclass (by kind)
+{
+  if ( ioAtom )
+    mPool_Heap->Free(ev->AsMdbEnv(), ioAtom);
+}
+
+morkOidAtom*
+morkPool::NewRowOidAtom(morkEnv* ev, const mdbOid& inOid)
+{
+  morkOidAtom* newAtom = 0;
+  mPool_Heap->Alloc(ev->AsMdbEnv(), sizeof(morkOidAtom),(void**) &newAtom);
+  if ( newAtom )
+    newAtom->InitRowOidAtom(ev, inOid);
+  return newAtom;
+}
+
+morkOidAtom*
+morkPool::NewTableOidAtom(morkEnv* ev, const mdbOid& inOid)
+{
+  morkOidAtom* newAtom = 0;
+  mPool_Heap->Alloc(ev->AsMdbEnv(), sizeof(morkOidAtom), (void**) &newAtom);
+  if ( newAtom )
+    newAtom->InitTableOidAtom(ev, inOid);
+  return newAtom;
+}
+
+morkAtom*
+morkPool::NewAnonAtom(morkEnv* ev, const morkBuf& inBuf,
+  mork_cscode inForm)
+// if inForm is zero, and inBuf.mBuf_Fill is less than 256, then a 'wee'
+// anon atom will be created, and otherwise a 'big' anon atom.
+{
+  morkAtom* newAtom = 0;
+  mork_bool needBig = ( inForm || inBuf.mBuf_Fill > 255 );
+  mork_size size = ( needBig )?
+    morkBigAnonAtom::SizeForFill(inBuf.mBuf_Fill) :
+    morkWeeAnonAtom::SizeForFill(inBuf.mBuf_Fill);
+
+  mPool_Heap->Alloc(ev->AsMdbEnv(), size, (void**) &newAtom);
+  if ( newAtom )
+  {
+    if ( needBig )
+      ((morkBigAnonAtom*) newAtom)->InitBigAnonAtom(ev, inBuf, inForm);
+    else
+      ((morkWeeAnonAtom*) newAtom)->InitWeeAnonAtom(ev, inBuf);
+  }
+  return newAtom;
+}
+
+morkBookAtom*
+morkPool::NewBookAtom(morkEnv* ev, const morkBuf& inBuf,
+  mork_cscode inForm, morkAtomSpace* ioSpace, mork_aid inAid)
+// if inForm is zero, and inBuf.mBuf_Fill is less than 256, then a 'wee'
+// book atom will be created, and otherwise a 'big' book atom.
+{
+  morkBookAtom* newAtom = 0;
+  mork_bool needBig = ( inForm || inBuf.mBuf_Fill > 255 );
+  mork_size size = ( needBig )?
+    morkBigBookAtom::SizeForFill(inBuf.mBuf_Fill) :
+    morkWeeBookAtom::SizeForFill(inBuf.mBuf_Fill);
+
+  mPool_Heap->Alloc(ev->AsMdbEnv(), size, (void**) &newAtom);
+  if ( newAtom )
+  {
+    if ( needBig )
+      ((morkBigBookAtom*) newAtom)->InitBigBookAtom(ev,
+        inBuf, inForm, ioSpace, inAid);
+    else
+      ((morkWeeBookAtom*) newAtom)->InitWeeBookAtom(ev,
+        inBuf, ioSpace, inAid);
+  }
+  return newAtom;
+}
+
+morkBookAtom*
+morkPool::NewBookAtomCopy(morkEnv* ev, const morkBigBookAtom& inAtom)
+  // make the smallest kind of book atom that can hold content in inAtom.
+  // The inAtom parameter is often expected to be a staged book atom in
+  // the store, which was used to search an atom space for existing atoms.
+{
+  morkBookAtom* newAtom = 0;
+  mork_cscode form = inAtom.mBigBookAtom_Form;
+  mork_fill fill = inAtom.mBigBookAtom_Size;
+  mork_bool needBig = ( form || fill > 255 );
+  mork_size size = ( needBig )?
+    morkBigBookAtom::SizeForFill(fill) :
+    morkWeeBookAtom::SizeForFill(fill);
+
+  mPool_Heap->Alloc(ev->AsMdbEnv(), size, (void**) &newAtom);
+  if ( newAtom )
+  {
+    morkBuf buf(inAtom.mBigBookAtom_Body, fill);
+    if ( needBig )
+      ((morkBigBookAtom*) newAtom)->InitBigBookAtom(ev,
+        buf, form, inAtom.mBookAtom_Space, inAtom.mBookAtom_Id);
+    else
+      ((morkWeeBookAtom*) newAtom)->InitWeeBookAtom(ev,
+        buf, inAtom.mBookAtom_Space, inAtom.mBookAtom_Id);
+  }
+  return newAtom;
+}
+
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkPool.h

@@ -0,0 +1,158 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKPOOL_
+#define _MORKPOOL_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKDEQUE_
+#include "morkDeque.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+class morkHandle;
+class morkHandleFrame;
+class morkHandleFace; // just an opaque cookie type
+class morkBigBookAtom;
+
+#define morkDerived_kPool     /*i*/ 0x706C /* ascii 'pl' */
+
+/*| morkPool: a place to manage pools of non-node objects that are memory
+**| managed out of large chunks of space, so that per-object management
+**| space overhead has no signficant cost.
+|*/
+class morkPool : public morkNode {
+  
+// public: // slots inherited from morkNode (meant to inform only)
+  // nsIMdbHeap*       mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+
+public: // state is public because the entire Mork system is private
+  nsIMdbHeap*  mPool_Heap; // NON-refcounted heap instance
+  
+  morkDeque    mPool_Blocks;      // linked list of large blocks from heap
+  
+  // These two lists contain instances of morkHandleFrame:
+  morkDeque    mPool_UsedHandleFrames; // handle frames currently being used
+  morkDeque    mPool_FreeHandleFrames; // handle frames currently in free list
+    
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // ClosePool() only if open
+  virtual ~morkPool(); // assert that ClosePool() executed earlier
+  
+public: // morkPool construction & destruction
+  morkPool(const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+    nsIMdbHeap* ioSlotHeap);
+  morkPool(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+    nsIMdbHeap* ioSlotHeap);
+  void ClosePool(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkPool(const morkPool& other);
+  morkPool& operator=(const morkPool& other);
+
+public: // dynamic type identification
+  mork_bool IsPool() const
+  { return IsNode() && mNode_Derived == morkDerived_kPool; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  void NonPoolTypeError(morkEnv* ev);
+
+public: // morkNode memory management operators
+  void* operator new(size_t inSize, nsIMdbHeap& ioHeap, morkEnv* ev)
+  { return morkNode::MakeNew(inSize, ioHeap, ev); }
+  
+  void* operator new(size_t inSize)
+  { return ::operator new(inSize); }
+  
+  void operator delete(void* ioAddress)
+  { morkNode::OnDeleteAssert(ioAddress); }
+  // do NOT call delete on morkNode instances.  Call ZapOld() instead.
+
+public: // other pool methods
+
+  // alloc and free individual instances of handles (inside hand frames):
+  morkHandleFace*  NewHandle(morkEnv* ev, mork_size inSize);
+  void             ZapHandle(morkEnv* ev, morkHandleFace* ioHandle);
+
+  // alloc and free individual instances of rows:
+  morkRow*  NewRow(morkEnv* ev); // allocate a new row instance
+  void      ZapRow(morkEnv* ev, morkRow* ioRow); // free old row instance
+
+  // alloc and free entire vectors of cells (not just one cell at a time)
+  morkCell* NewCells(morkEnv* ev, mork_size inSize);
+  void      ZapCells(morkEnv* ev, morkCell* ioVector, mork_size inSize);
+  
+  // resize (grow or trim) cell vectors inside a containing row instance
+  mork_bool AddRowCells(morkEnv* ev, morkRow* ioRow, mork_size inNewSize);
+  mork_bool CutRowCells(morkEnv* ev, morkRow* ioRow, mork_size inNewSize);
+  
+  // alloc & free individual instances of atoms (lots of atom subclasses):
+  void ZapAtom(morkEnv* ev, morkAtom* ioAtom); // any subclass (by kind)
+  
+  morkOidAtom* NewRowOidAtom(morkEnv* ev, const mdbOid& inOid); 
+  morkOidAtom* NewTableOidAtom(morkEnv* ev, const mdbOid& inOid);
+  
+  morkAtom* NewAnonAtom(morkEnv* ev, const morkBuf& inBuf,
+    mork_cscode inForm);
+    // if inForm is zero, and inBuf.mBuf_Fill is less than 256, then a 'wee'
+    // anon atom will be created, and otherwise a 'big' anon atom.
+    
+  morkBookAtom* NewBookAtom(morkEnv* ev, const morkBuf& inBuf,
+    mork_cscode inForm, morkAtomSpace* ioSpace, mork_aid inAid);
+    // if inForm is zero, and inBuf.mBuf_Fill is less than 256, then a 'wee'
+    // book atom will be created, and otherwise a 'big' book atom.
+    
+  morkBookAtom* NewBookAtomCopy(morkEnv* ev, const morkBigBookAtom& inAtom);
+    // make the smallest kind of book atom that can hold content in inAtom.
+    // The inAtom parameter is often expected to be a staged book atom in
+    // the store, which was used to search an atom space for existing atoms.
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakPool(morkPool* me,
+    morkEnv* ev, morkPool** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongPool(morkPool* me,
+    morkEnv* ev, morkPool** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKPOOL_ */

mozilla/db/mork/src/morkPortTableCursor.cpp

@@ -0,0 +1,145 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKCURSOR_
+#include "morkCursor.h"
+#endif
+
+#ifndef _MORKPORTTABLECURSOR_
+#include "morkPortTableCursor.h"
+#endif
+
+#ifndef _ORKINPORTTABLECURSOR_
+#include "orkinPortTableCursor.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkPortTableCursor::CloseMorkNode(morkEnv* ev) // ClosePortTableCursor() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->ClosePortTableCursor(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkPortTableCursor::~morkPortTableCursor() // ClosePortTableCursor() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkPortTableCursor::morkPortTableCursor(morkEnv* ev,
+  const morkUsage& inUsage,
+  nsIMdbHeap* ioHeap, morkStore* ioStore, mdb_scope inRowScope,
+  mdb_kind inTableKind, nsIMdbHeap* ioSlotHeap)
+: morkCursor(ev, inUsage, ioHeap)
+, mPortTableCursor_Store( 0 )
+, mPortTableCursor_RowScope( inRowScope )
+, mPortTableCursor_TableKind( inTableKind )
+{
+  if ( ev->Good() )
+  {
+    if ( ioStore )
+    {
+      mCursor_Pos = -1;
+      mCursor_Seed = 0; // let the iterator do it's own seed handling
+      morkStore::SlotWeakStore(ioStore, ev, &mPortTableCursor_Store);
+      if ( ev->Good() )
+        mNode_Derived = morkDerived_kPortTableCursor;
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkPortTableCursor::ClosePortTableCursor(morkEnv* ev) 
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mCursor_Pos = -1;
+      mCursor_Seed = 0;
+      morkStore::SlotWeakStore((morkStore*) 0, ev, &mPortTableCursor_Store);
+      this->CloseCursor(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void
+morkPortTableCursor::NonPortTableCursorTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkPortTableCursor");
+}
+
+orkinPortTableCursor*
+morkPortTableCursor::AcquirePortTableCursorHandle(morkEnv* ev)
+{
+  orkinPortTableCursor* outCursor = 0;
+  orkinPortTableCursor* c = (orkinPortTableCursor*) mObject_Handle;
+  if ( c ) // have an old handle?
+    c->AddStrongRef(ev->AsMdbEnv());
+  else // need new handle?
+  {
+    c = orkinPortTableCursor::MakePortTableCursor(ev, this);
+    mObject_Handle = c;
+  }
+  if ( c )
+    outCursor = c;
+  return outCursor;
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkPortTableCursor.h

@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKPORTTABLECURSOR_
+#define _MORKPORTTABLECURSOR_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKCURSOR_
+#include "morkCursor.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+class orkinPortTableCursor;
+#define morkDerived_kPortTableCursor  /*i*/ 0x7443 /* ascii 'tC' */
+
+class morkPortTableCursor : public morkCursor { // row iterator
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*     mNode_Heap;
+  // mork_able    mNode_Mutable; // can this node be modified?
+  // mork_load    mNode_Load;    // is this node clean or dirty?
+  // mork_base    mNode_Base;    // must equal morkBase_kNode
+  // mork_derived mNode_Derived; // depends on specific node subclass
+  // mork_access  mNode_Access;  // kOpen, kClosing, kShut, or kDead
+  // mork_usage   mNode_Usage;   // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_uses    mNode_Uses;    // refcount for strong refs
+  // mork_refs    mNode_Refs;    // refcount for strong refs + weak refs
+
+  // morkFactory* mObject_Factory;  // weak ref to suite factory
+
+  // mork_seed  mCursor_Seed;
+  // mork_pos   mCursor_Pos;
+  // mork_bool  mCursor_DoFailOnSeedOutOfSync;
+  // mork_u1    mCursor_Pad[ 3 ]; // explicitly pad to u4 alignment
+
+public: // state is public because the entire Mork system is private
+  morkStore*    mPortTableCursor_Store;  // weak ref to store
+  
+  mdb_scope     mPortTableCursor_RowScope;
+  mdb_kind      mPortTableCursor_TableKind;
+  
+  // $$$ need use a map iter for covering tables in port map (hash table)
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // ClosePortTableCursor()
+  virtual ~morkPortTableCursor(); // assert that close executed earlier
+  
+public: // morkPortTableCursor construction & destruction
+  morkPortTableCursor(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, morkStore* ioStore, mdb_scope inRowScope,
+      mdb_kind inTableKind, nsIMdbHeap* ioSlotHeap);
+  void ClosePortTableCursor(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkPortTableCursor(const morkPortTableCursor& other);
+  morkPortTableCursor& operator=(const morkPortTableCursor& other);
+
+public: // dynamic type identification
+  mork_bool IsPortTableCursor() const
+  { return IsNode() && mNode_Derived == morkDerived_kPortTableCursor; }
+// } ===== end morkNode methods =====
+
+public: // other cell cursor methods
+
+  static void NonPortTableCursorTypeError(morkEnv* ev);
+  
+  orkinPortTableCursor* AcquirePortTableCursorHandle(morkEnv* ev);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakPortTableCursor(morkPortTableCursor* me,
+    morkEnv* ev, morkPortTableCursor** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongPortTableCursor(morkPortTableCursor* me,
+    morkEnv* ev, morkPortTableCursor** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKPORTTABLECURSOR_ */

mozilla/db/mork/src/morkRow.cpp

@@ -0,0 +1,388 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKROW_
+#include "morkRow.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKROWSPACE_
+#include "morkRowSpace.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+#ifndef _MORKROWOBJECT_
+#include "morkRowObject.h"
+#endif
+
+#ifndef _MORKCELLOBJECT_
+#include "morkCellObject.h"
+#endif
+
+#ifndef _MORKCELL_
+#include "morkCell.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+#ifndef _MORKROWCELLCURSOR_
+#include "morkRowCellCursor.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+mork_u2
+morkRow::AddTableUse(morkEnv* ev)
+{
+  if ( mRow_TableUses < morkRow_kMaxTableUses ) // not already maxed out?
+    ++mRow_TableUses;
+    
+  return mRow_TableUses;
+}
+
+mork_u2
+morkRow::CutTableUse(morkEnv* ev)
+{
+  if ( mRow_TableUses ) // any outstanding uses to cut?
+  {
+    if ( mRow_TableUses < morkRow_kMaxTableUses ) // not frozen at max?
+      --mRow_TableUses;
+  }
+  else
+    this->TableUsesUnderflowWarning(ev);
+    
+  return mRow_TableUses;
+}
+
+/*static*/ void
+morkRow::TableUsesUnderflowWarning(morkEnv* ev)
+{
+  ev->NewWarning("mRow_TableUses underflow");
+}
+
+
+/*static*/ void
+morkRow::NonRowTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkRow");
+}
+
+/*static*/ void
+morkRow::NonRowTypeWarning(morkEnv* ev)
+{
+  ev->NewWarning("non morkRow");
+}
+
+/*static*/ void
+morkRow::LengthBeyondMaxError(morkEnv* ev)
+{
+  ev->NewError("mRow_Length over max");
+}
+
+/*static*/ void
+morkRow::ZeroColumnError(morkEnv* ev)
+{
+  ev->NewError(" zero mork_column");
+}
+
+/*static*/ void
+morkRow::NilCellsError(morkEnv* ev)
+{
+  ev->NewError("nil mRow_Cells");
+}
+
+void
+morkRow::InitRow(morkEnv* ev, const mdbOid* inOid, morkRowSpace* ioSpace,
+  mork_size inLength, morkPool* ioPool)
+  // if inLength is nonzero, cells will be allocated from ioPool
+{
+  if ( ioSpace && ioPool && inOid )
+  {
+    if ( inLength <= morkRow_kMaxLength )
+    {
+      if ( inOid->mOid_Id != morkRow_kMinusOneRid )
+      {
+        mRow_Space = ioSpace;
+        mRow_Object = 0;
+        mRow_Cells = 0;
+        mRow_Oid = *inOid;
+
+        mRow_Length = inLength;
+        mRow_Seed = (mork_u2) this; // "random" assignment
+
+        mRow_TableUses = 0;
+        mRow_Load = morkLoad_kClean;
+        mRow_Tag = morkRow_kTag;
+
+        if ( inLength )
+          mRow_Cells = ioPool->NewCells(ev, inLength);
+      }
+      else
+        ioSpace->MinusOneRidError(ev);
+    }
+    else
+      this->LengthBeyondMaxError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+morkRowObject*
+morkRow::GetRowObject(morkEnv* ev, morkStore* ioStore)
+{
+  morkRowObject* ro = mRow_Object;
+  if ( !ro ) // need new row object?
+  {
+    nsIMdbHeap* heap = ioStore->mPort_Heap;
+    ro = new (*heap, ev)
+      morkRowObject(ev, morkUsage::kHeap, heap, this, ioStore);
+    mRow_Object = ro;
+  }
+  return ro;
+}
+
+nsIMdbRow*
+morkRow::AcquireRowHandle(morkEnv* ev, morkStore* ioStore)
+{
+  morkRowObject* object = this->GetRowObject(ev, ioStore);
+  if ( object )
+    return object->AcquireRowHandle(ev);
+    
+  return (nsIMdbRow*) 0;
+}
+
+nsIMdbCell*
+morkRow::AcquireCellHandle(morkEnv* ev, morkCell* ioCell,
+  mdb_column inCol, mork_pos inPos)
+{
+  nsIMdbHeap* heap = ev->mEnv_Heap;
+  morkCellObject* cellObj = new (*heap, ev)
+    morkCellObject(ev, morkUsage::kHeap, heap, this, ioCell, inCol, inPos);
+  if ( cellObj )
+    return cellObj->AcquireCellHandle(ev);
+    
+  return (nsIMdbCell*) 0;
+}
+
+morkCell*
+morkRow::NewCell(morkEnv* ev, mdb_column inColumn,
+  mork_pos* outPos, morkStore* ioStore)
+{
+  ++mRow_Seed; // intend to change structure of mRow_Cells
+  mork_pos length = (mork_pos) mRow_Length;
+  *outPos = length;
+  morkPool* pool = ioStore->StorePool();
+  if ( pool->AddRowCells(ev, this, length + 1) )
+  {
+    morkCell* cell = mRow_Cells + length;
+    cell->SetColumnAndChange(inColumn, morkChange_kAdd);
+    return cell;
+  }
+    
+  return (morkCell*) 0;
+}
+
+morkCell*
+morkRow::CellAt(morkEnv* ev, mork_pos inPos) const
+{
+  morkCell* cells = mRow_Cells;
+  if ( cells && inPos < mRow_Length )
+  {
+    return cells + inPos;
+  }
+  return (morkCell*) 0;
+}
+
+morkCell*
+morkRow::GetCell(morkEnv* ev, mdb_column inColumn, mork_pos* outPos) const
+{
+  morkCell* cells = mRow_Cells;
+  if ( cells )
+  {
+    morkCell* end = cells + mRow_Length;
+    while ( cells < end )
+    {
+      mork_column col = cells->GetColumn();
+      if ( col == inColumn ) // found the desired column?
+      {
+        *outPos = cells - mRow_Cells;
+        return cells;
+      }
+      else
+        ++cells;
+    }
+  }
+  *outPos = -1;
+  return (morkCell*) 0;
+}
+
+void
+morkRow::EmptyAllCells(morkEnv* ev)
+{
+  morkCell* cells = mRow_Cells;
+  if ( cells )
+  {
+    morkStore* store = this->GetRowSpaceStore(ev);
+    if ( store )
+    {
+      morkPool* pool = store->StorePool();
+      morkCell* end = cells + mRow_Length;
+      --cells; // prepare for preincrement:
+      while ( ++cells < end )
+      {
+        if ( cells->mCell_Atom )
+          cells->SetAtom(ev, (morkAtom*) 0, pool);
+      }
+    }
+  }
+}
+
+void
+morkRow::AddRow(morkEnv* ev, const morkRow* inSourceRow)
+{
+  ev->StubMethodOnlyError();
+  // $$$$$ need to iterate over inSourceRow cells adding them to this row.
+  // When the atoms are book atoms, we can just incr the use count.
+}
+
+void
+morkRow::OnZeroTableUse(morkEnv* ev)
+// OnZeroTableUse() is called when CutTableUse() returns zero.
+{
+	// OK, this is a P1 showstopper bug, so I'll comment it out.
+//  ev->NewWarning("need to implement OnZeroTableUse");
+}
+
+void
+morkRow::DirtyAllRowContent(morkEnv* ev)
+{
+  this->SetRowDirty();
+
+  morkCell* cells = mRow_Cells;
+  if ( cells )
+  {
+    morkCell* end = cells + mRow_Length;
+    --cells; // prepare for preincrement:
+    while ( ++cells < end )
+    {
+      cells->SetCellDirty();
+    }
+  }
+}
+
+morkStore*
+morkRow::GetRowSpaceStore(morkEnv* ev) const
+{
+  morkRowSpace* rowSpace = mRow_Space;
+  if ( rowSpace )
+  {
+    morkStore* store = rowSpace->mSpace_Store;
+    if ( store )
+    {
+      if ( store->IsStore() )
+      {
+        return store;
+      }
+      else
+        store->NonStoreTypeError(ev);
+    }
+    else
+      ev->NilPointerError();
+  }
+  else
+    ev->NilPointerError();
+    
+  return (morkStore*) 0;
+}
+
+void morkRow::AddColumn(morkEnv* ev, mdb_column inColumn,
+  const mdbYarn* inYarn, morkStore* ioStore)
+{
+  if ( ev->Good() )
+  {
+    mork_pos pos = -1;
+    morkCell* cell = this->GetCell(ev, inColumn, &pos);
+    if ( !cell ) // column does not yet exist?
+      cell = this->NewCell(ev, inColumn, &pos, ioStore);
+    else
+      ++mRow_Seed;
+    
+    if ( cell )
+    {
+      // cell->SetYarn(ev, inYarn, ioStore);
+      morkAtom* atom = ioStore->YarnToAtom(ev, inYarn);
+      if ( atom )
+        cell->SetAtom(ev, atom, ioStore->StorePool()); // refcounts atom
+    }
+  }
+}
+
+morkRowCellCursor*
+morkRow::NewRowCellCursor(morkEnv* ev, mdb_pos inPos)
+{
+  morkRowCellCursor* outCursor = 0;
+  if ( ev->Good() )
+  {
+    morkStore* store = this->GetRowSpaceStore(ev);
+    if ( store )
+    {
+      morkRowObject* rowObj = this->GetRowObject(ev, store);
+      if ( rowObj )
+      {
+        nsIMdbHeap* heap = store->mPort_Heap;
+        morkRowCellCursor* cursor = new (*heap, ev)
+          morkRowCellCursor(ev, morkUsage::kHeap, heap, rowObj);
+         
+        if ( cursor )
+        {
+          if ( ev->Good() )
+          {
+            cursor->mCursor_Pos = inPos;
+            outCursor = cursor;
+          }
+          else
+            cursor->CutStrongRef(ev);
+        }
+      }
+    }
+  }
+  return outCursor;
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkRow.h

@@ -0,0 +1,143 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKROW_
+#define _MORKROW_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+class nsIMdbRow;
+class nsIMdbCell;
+#define morkDerived_kRow  /*i*/ 0x5277 /* ascii 'Rw' */
+
+#define morkRow_kMaxTableUses 0x0FFFF /* max for 16-bit unsigned int */
+#define morkRow_kMaxLength 0x0FFFF /* max for 16-bit unsigned int */
+#define morkRow_kMinusOneRid ((mork_rid) -1)
+
+#define morkRow_kTag 'r' /* magic signature for mRow_Tag */
+
+
+class morkRow { // row of cells
+
+public: // state is public because the entire Mork system is private
+  morkRowSpace*   mRow_Space;  // mRow_Space->mSpace_Scope is the row scope 
+  morkRowObject*  mRow_Object; // refcount & other state for object sharing
+  morkCell*       mRow_Cells;
+  mdbOid          mRow_Oid;
+
+  mork_u2         mRow_Length;     // physical count of cells in mRow_Cells 
+  mork_u2         mRow_Seed;       // count changes in mRow_Cells structure
+
+  mork_u2         mRow_TableUses;  // persistent references from tables
+  mork_load       mRow_Load;       // is this row clean or dirty?
+  mork_u1         mRow_Tag;        // one-byte tag (need u4 alignment pad)
+  
+public: // other row methods
+  morkRow( ) { }
+  morkRow(const mdbOid* inOid) :mRow_Oid(*inOid) { }
+  void InitRow(morkEnv* ev, const mdbOid* inOid, morkRowSpace* ioSpace,
+    mork_size inLength, morkPool* ioPool);
+    // if inLength is nonzero, cells will be allocated from ioPool
+
+  morkRowObject* GetRowObject(morkEnv* ev, morkStore* ioStore);
+  nsIMdbRow* AcquireRowHandle(morkEnv* ev, morkStore* ioStore);
+  nsIMdbCell* AcquireCellHandle(morkEnv* ev, morkCell* ioCell,
+    mdb_column inColumn, mork_pos inPos);
+  
+  mork_u2 AddTableUse(morkEnv* ev);
+  mork_u2 CutTableUse(morkEnv* ev);
+
+  void SetRowClean() { mRow_Load = morkLoad_kClean; }
+  void SetRowDirty() { mRow_Load = morkLoad_kDirty; }
+  
+  mork_bool IsRowClean() const { return mRow_Load == morkLoad_kClean; }
+  mork_bool IsRowDirty() const { return mRow_Load == morkLoad_kDirty; }
+
+public: // internal row methods
+
+  morkCell* NewCell(morkEnv* ev, mdb_column inColumn, mork_pos* outPos,
+    morkStore* ioStore);
+  morkCell* GetCell(morkEnv* ev, mdb_column inColumn, mork_pos* outPos) const;
+  morkCell* CellAt(morkEnv* ev, mork_pos inPos) const;
+
+public: // external row methods
+
+  void DirtyAllRowContent(morkEnv* ev);
+
+  morkStore* GetRowSpaceStore(morkEnv* ev) const;
+
+  void AddColumn(morkEnv* ev, mdb_column inColumn,
+    const mdbYarn* inYarn, morkStore* ioStore);
+
+  morkRowCellCursor* NewRowCellCursor(morkEnv* ev, mdb_pos inPos);
+  
+  void EmptyAllCells(morkEnv* ev);
+  void AddRow(morkEnv* ev, const morkRow* inSourceRow);
+
+  void OnZeroTableUse(morkEnv* ev);
+  // OnZeroTableUse() is called when CutTableUse() returns zero.
+
+public: // dynamic typing
+
+  mork_bool IsRow() const { return mRow_Tag == morkRow_kTag; }
+
+public: // hash and equal
+
+  mork_u4 HashRow() const
+  {
+    return (mRow_Oid.mOid_Scope << 16) ^ mRow_Oid.mOid_Id;
+  }
+
+  mork_u4 EqualRow(const morkRow* ioRow) const
+  {
+    return
+    (
+      ( mRow_Oid.mOid_Scope == ioRow->mRow_Oid.mOid_Scope ) 
+      && ( mRow_Oid.mOid_Id == ioRow->mRow_Oid.mOid_Id )
+    );
+  }
+
+  mork_u4 EqualOid(const mdbOid* ioOid) const
+  {
+    return
+    (
+      ( mRow_Oid.mOid_Scope == ioOid->mOid_Scope ) 
+      && ( mRow_Oid.mOid_Id == ioOid->mOid_Id )
+    );
+  }
+
+public: // errors
+  static void ZeroColumnError(morkEnv* ev);
+  static void LengthBeyondMaxError(morkEnv* ev);
+  static void NilCellsError(morkEnv* ev);
+  static void NonRowTypeError(morkEnv* ev);
+  static void NonRowTypeWarning(morkEnv* ev);
+  static void TableUsesUnderflowWarning(morkEnv* ev);
+
+private: // copying is not allowed
+  morkRow(const morkRow& other);
+  morkRow& operator=(const morkRow& other);
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKROW_ */

mozilla/db/mork/src/morkRowCellCursor.cpp

@@ -0,0 +1,165 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKCURSOR_
+#include "morkCursor.h"
+#endif
+
+#ifndef _MORKROWCELLCURSOR_
+#include "morkRowCellCursor.h"
+#endif
+
+#ifndef _ORKINROWCELLCURSOR_
+#include "orkinRowCellCursor.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+#ifndef _MORKROWOBJECT_
+#include "morkRowObject.h"
+#endif
+
+#ifndef _MORKROW_
+#include "morkRow.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkRowCellCursor::CloseMorkNode(morkEnv* ev) // CloseRowCellCursor() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseRowCellCursor(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkRowCellCursor::~morkRowCellCursor() // CloseRowCellCursor() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkRowCellCursor::morkRowCellCursor(morkEnv* ev,
+  const morkUsage& inUsage,
+  nsIMdbHeap* ioHeap, morkRowObject* ioRowObject)
+: morkCursor(ev, inUsage, ioHeap)
+, mRowCellCursor_RowObject( 0 )
+, mRowCellCursor_Col( 0 )
+{
+  if ( ev->Good() )
+  {
+    if ( ioRowObject )
+    {
+      morkRow* row = ioRowObject->mRowObject_Row;
+      if ( row )
+      {
+        if ( row->IsRow() )
+        {
+          mCursor_Pos = -1;
+          mCursor_Seed = row->mRow_Seed;
+          
+          morkRowObject::SlotStrongRowObject(ioRowObject, ev,
+            &mRowCellCursor_RowObject);
+          if ( ev->Good() )
+            mNode_Derived = morkDerived_kRowCellCursor;
+        }
+        else
+          row->NonRowTypeError(ev);
+      }
+      else
+        ioRowObject->NilRowError(ev);
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkRowCellCursor::CloseRowCellCursor(morkEnv* ev) 
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mCursor_Pos = -1;
+      mCursor_Seed = 0;
+      morkRowObject::SlotStrongRowObject((morkRowObject*) 0, ev,
+        &mRowCellCursor_RowObject);
+      this->CloseCursor(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void
+morkRowCellCursor::NonRowCellCursorTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkRowCellCursor");
+}
+
+orkinRowCellCursor*
+morkRowCellCursor::AcquireRowCellCursorHandle(morkEnv* ev)
+{
+  orkinRowCellCursor* outCursor = 0;
+  orkinRowCellCursor* c = (orkinRowCellCursor*) mObject_Handle;
+  if ( c ) // have an old handle?
+    c->AddStrongRef(ev->AsMdbEnv());
+  else // need new handle?
+  {
+    c = orkinRowCellCursor::MakeRowCellCursor(ev, this);
+    mObject_Handle = c;
+  }
+  if ( c )
+    outCursor = c;
+  return outCursor;
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkRowCellCursor.h

@@ -0,0 +1,97 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKROWCELLCURSOR_
+#define _MORKROWCELLCURSOR_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKCURSOR_
+#include "morkCursor.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+class orkinRowCellCursor;
+#define morkDerived_kRowCellCursor  /*i*/ 0x6343 /* ascii 'cC' */
+
+class morkRowCellCursor : public morkCursor { // row iterator
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*     mNode_Heap;
+  // mork_able    mNode_Mutable; // can this node be modified?
+  // mork_load    mNode_Load;    // is this node clean or dirty?
+  // mork_base    mNode_Base;    // must equal morkBase_kNode
+  // mork_derived mNode_Derived; // depends on specific node subclass
+  // mork_access  mNode_Access;  // kOpen, kClosing, kShut, or kDead
+  // mork_usage   mNode_Usage;   // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_uses    mNode_Uses;    // refcount for strong refs
+  // mork_refs    mNode_Refs;    // refcount for strong refs + weak refs
+
+  // morkFactory* mObject_Factory;  // weak ref to suite factory
+
+  // mork_seed  mCursor_Seed;
+  // mork_pos   mCursor_Pos;
+  // mork_bool  mCursor_DoFailOnSeedOutOfSync;
+  // mork_u1    mCursor_Pad[ 3 ]; // explicitly pad to u4 alignment
+
+public: // state is public because the entire Mork system is private
+
+  morkRowObject*   mRowCellCursor_RowObject;  // strong ref to row
+  mork_column      mRowCellCursor_Col;        // col of cell last at mCursor_Pos
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseRowCellCursor()
+  virtual ~morkRowCellCursor(); // assert that close executed earlier
+  
+public: // morkRowCellCursor construction & destruction
+  morkRowCellCursor(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, morkRowObject* ioRowObject);
+  void CloseRowCellCursor(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkRowCellCursor(const morkRowCellCursor& other);
+  morkRowCellCursor& operator=(const morkRowCellCursor& other);
+
+public: // dynamic type identification
+  mork_bool IsRowCellCursor() const
+  { return IsNode() && mNode_Derived == morkDerived_kRowCellCursor; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonRowCellCursorTypeError(morkEnv* ev);
+
+public: // other cell cursor methods
+  orkinRowCellCursor* AcquireRowCellCursorHandle(morkEnv* ev);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakRowCellCursor(morkRowCellCursor* me,
+    morkEnv* ev, morkRowCellCursor** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongRowCellCursor(morkRowCellCursor* me,
+    morkEnv* ev, morkRowCellCursor** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKROWCELLCURSOR_ */

mozilla/db/mork/src/morkRowMap.cpp

@@ -0,0 +1,171 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKROWMAP_
+#include "morkRowMap.h"
+#endif
+
+#ifndef _MORKROW_
+#include "morkRow.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkRowMap::CloseMorkNode(morkEnv* ev) // CloseRowMap() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseRowMap(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkRowMap::~morkRowMap() // assert CloseRowMap() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkRowMap::morkRowMap(morkEnv* ev, const morkUsage& inUsage,
+  nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap, mork_size inSlots)
+: morkMap(ev, inUsage,  ioHeap,
+  /*inKeySize*/ sizeof(morkRow*), /*inValSize*/ 0,
+  inSlots, ioSlotHeap, /*inHoldChanges*/ morkBool_kFalse)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kRowMap;
+}
+
+/*public non-poly*/ void
+morkRowMap::CloseRowMap(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      this->CloseMap(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+
+// { ===== begin morkMap poly interface =====
+/*virtual*/ mork_bool // 
+morkRowMap::Equal(morkEnv* ev, const void* inKeyA,
+  const void* inKeyB) const
+{
+  return (*(const morkRow**) inKeyA)->EqualRow(*(const morkRow**) inKeyB);
+}
+
+/*virtual*/ mork_u4 // 
+morkRowMap::Hash(morkEnv* ev, const void* inKey) const
+{
+  return (*(const morkRow**) inKey)->HashRow();
+}
+// } ===== end morkMap poly interface =====
+
+
+mork_bool
+morkRowMap::AddRow(morkEnv* ev, morkRow* ioRow)
+{
+  if ( ev->Good() )
+  {
+    this->Put(ev, &ioRow, /*val*/ (void*) 0, 
+      /*key*/ (void*) 0, /*val*/ (void*) 0, (mork_change**) 0);
+  }
+  return ev->Good();
+}
+
+morkRow*
+morkRowMap::CutOid(morkEnv* ev, const mdbOid* inOid)
+{
+  morkRow row(inOid);
+  morkRow* key = &row;
+  morkRow* oldKey = 0;
+  this->Cut(ev, &key, &oldKey, /*val*/ (void*) 0,
+    (mork_change**) 0);
+    
+  return oldKey;
+}
+
+morkRow*
+morkRowMap::CutRow(morkEnv* ev, const morkRow* ioRow)
+{
+  morkRow* oldKey = 0;
+  this->Cut(ev, &ioRow, &oldKey, /*val*/ (void*) 0,
+    (mork_change**) 0);
+    
+  return oldKey;
+}
+
+morkRow*
+morkRowMap::GetOid(morkEnv* ev, const mdbOid* inOid)
+{
+  morkRow row(inOid);
+  morkRow* key = &row;
+  morkRow* oldKey = 0;
+  this->Get(ev, &key, &oldKey, /*val*/ (void*) 0, (mork_change**) 0);
+  
+  return oldKey;
+}
+
+morkRow*
+morkRowMap::GetRow(morkEnv* ev, const morkRow* ioRow)
+{
+  morkRow* oldKey = 0;
+  this->Get(ev, &ioRow, &oldKey, /*val*/ (void*) 0, (mork_change**) 0);
+  
+  return oldKey;
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkRowMap.h

@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKROWMAP_
+#define _MORKROWMAP_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kRowMap  /*i*/ 0x724D /* ascii 'rM' */
+
+/*| morkRowMap: maps a set of morkRow by contained Oid
+|*/
+class morkRowMap : public morkMap { // for mapping row IDs to rows
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseRowMap() only if open
+  virtual ~morkRowMap(); // assert that CloseRowMap() executed earlier
+  
+public: // morkMap construction & destruction
+  morkRowMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap, mork_size inSlots);
+  void CloseRowMap(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsRowMap() const
+  { return IsNode() && mNode_Derived == morkDerived_kRowMap; }
+// } ===== end morkNode methods =====
+
+// { ===== begin morkMap poly interface =====
+  virtual mork_bool // note: equal(a,b) implies hash(a) == hash(b)
+  Equal(morkEnv* ev, const void* inKeyA, const void* inKeyB) const;
+  // implemented using morkRow::EqualRow()
+
+  virtual mork_u4 // note: equal(a,b) implies hash(a) == hash(b)
+  Hash(morkEnv* ev, const void* inKey) const;
+  // implemented using morkRow::HashRow()
+// } ===== end morkMap poly interface =====
+
+public: // other map methods
+
+  mork_bool AddRow(morkEnv* ev, morkRow* ioRow);
+  // AddRow() returns ev->Good()
+
+  morkRow*  CutOid(morkEnv* ev, const mdbOid* inOid);
+  // CutRid() returns the row removed equal to inRid, if there was one
+
+  morkRow*  CutRow(morkEnv* ev, const morkRow* ioRow);
+  // CutRow() returns the row removed equal to ioRow, if there was one
+  
+  morkRow*  GetOid(morkEnv* ev, const mdbOid* inOid);
+  // GetOid() returns the row equal to inRid, or else nil
+  
+  morkRow*  GetRow(morkEnv* ev, const morkRow* ioRow);
+  // GetRow() returns the row equal to ioRow, or else nil
+  
+  // note the rows are owned elsewhere, usuall by morkRowSpace
+};
+
+class morkRowMapIter: public morkMapIter{ // typesafe wrapper class
+
+public:
+  morkRowMapIter(morkEnv* ev, morkRowMap* ioMap)
+  : morkMapIter(ev, ioMap) { }
+ 
+  morkRowMapIter( ) : morkMapIter()  { }
+  void InitRowMapIter(morkEnv* ev, morkRowMap* ioMap)
+  { this->InitMapIter(ev, ioMap); }
+   
+  mork_change* FirstRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->First(ev, outRowPtr, /*val*/ (void*) 0); }
+  
+  mork_change* NextRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->Next(ev, outRowPtr, /*val*/ (void*) 0); }
+  
+  mork_change* HereRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->Here(ev, outRowPtr, /*val*/ (void*) 0); }
+  
+  mork_change* CutHereRow(morkEnv* ev, morkRow** outRowPtr)
+  { return this->CutHere(ev, outRowPtr, /*val*/ (void*) 0); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKROWMAP_ */

mozilla/db/mork/src/morkRowObject.cpp

@@ -0,0 +1,170 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKROWOBJECT_
+#include "morkRowObject.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _ORKINROW_
+#include "orkinRow.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkRowObject::CloseMorkNode(morkEnv* ev) // CloseRowObject() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseRowObject(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkRowObject::~morkRowObject() // assert CloseRowObject() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkRowObject::morkRowObject(morkEnv* ev,
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+     morkRow* ioRow, morkStore* ioStore)
+: morkObject(ev, inUsage, ioHeap, (morkHandle*) 0)
+, mRowObject_Row( 0 )
+, mRowObject_Store( 0 )
+{
+  if ( ev->Good() )
+  {
+    if ( ioRow && ioStore )
+    {
+      mRowObject_Row = ioRow;
+      morkStore::SlotWeakStore(ioStore, ev, &mRowObject_Store);
+      
+      if ( ev->Good() )
+        mNode_Derived = morkDerived_kRowObject;
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkRowObject::CloseRowObject(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      morkRow* row = mRowObject_Row;
+      mRowObject_Row = 0;
+      this->CloseObject(ev);
+      this->MarkShut();
+
+      if ( row )
+      {
+        if ( row->mRow_Object == this )
+        {
+          morkRowObject::SlotWeakRowObject((morkRowObject*) 0, ev,
+            &row->mRow_Object);
+          morkStore::SlotWeakStore((morkStore*) 0, ev,
+            &mRowObject_Store);
+        }
+        else
+          MORK_ASSERT(morkBool_kFalse);
+      }
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void
+morkRowObject::NonRowObjectTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkRowObject");
+}
+
+/*static*/ void
+morkRowObject::NilRowError(morkEnv* ev)
+{
+  ev->NewError("nil mRowObject_Row");
+}
+
+/*static*/ void
+morkRowObject::NilStoreError(morkEnv* ev)
+{
+  ev->NewError("nil mRowObject_Store");
+}
+
+/*static*/ void
+morkRowObject::RowObjectRowNotSelfError(morkEnv* ev)
+{
+  ev->NewError("mRowObject_Row->mRow_Object != self");
+}
+
+
+nsIMdbRow*
+morkRowObject::AcquireRowHandle(morkEnv* ev) // mObject_Handle
+{
+  nsIMdbRow* outRow = 0;
+  orkinRow* r = (orkinRow*) mObject_Handle;
+  if ( r ) // have an old handle?
+    r->AddStrongRef(ev->AsMdbEnv());
+  else // need new handle?
+  {
+    r = orkinRow::MakeRow(ev, this);
+    mObject_Handle = r;
+  }
+  if ( r )
+    outRow = r;
+  return outRow;
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkRowObject.h

@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKROWOBJECT_
+#define _MORKROWOBJECT_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+class nsIMdbRow;
+#define morkDerived_kRowObject  /*i*/ 0x724F /* ascii 'rO' */
+
+class morkRowObject : public morkObject { //
+
+public: // state is public because the entire Mork system is private
+  morkRow*    mRowObject_Row;     // non-refcounted alias to morkRow
+  morkStore*  mRowObject_Store;   // weak ref to store containing row
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseRowObject() only if open
+  virtual ~morkRowObject(); // assert that CloseRowObject() executed earlier
+  
+public: // morkRowObject construction & destruction
+  morkRowObject(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, morkRow* ioRow, morkStore* ioStore);
+  void CloseRowObject(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkRowObject(const morkRowObject& other);
+  morkRowObject& operator=(const morkRowObject& other);
+
+public: // dynamic type identification
+  mork_bool IsRowObject() const
+  { return IsNode() && mNode_Derived == morkDerived_kRowObject; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonRowObjectTypeError(morkEnv* ev);
+  static void NilRowError(morkEnv* ev);
+  static void NilStoreError(morkEnv* ev);
+  static void RowObjectRowNotSelfError(morkEnv* ev);
+
+public: // other row node methods
+
+  nsIMdbRow* AcquireRowHandle(morkEnv* ev); // mObject_Handle
+  
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakRowObject(morkRowObject* me,
+    morkEnv* ev, morkRowObject** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongRowObject(morkRowObject* me,
+    morkEnv* ev, morkRowObject** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKROWOBJECT_ */

mozilla/db/mork/src/morkRowSpace.cpp

@@ -0,0 +1,382 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKSPACE_
+#include "morkSpace.h"
+#endif
+
+#ifndef _MORKNODEMAP_
+#include "morkNodeMap.h"
+#endif
+
+#ifndef _MORKROWMAP_
+#include "morkRowMap.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKROWSPACE_
+#include "morkRowSpace.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+#ifndef _MORKTABLE_
+#include "morkTable.h"
+#endif
+
+#ifndef _MORKROW_
+#include "morkRow.h"
+#endif
+
+#ifndef _MORKROWOBJECT_
+#include "morkRowObject.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkRowSpace::CloseMorkNode(morkEnv* ev) // CloseRowSpace() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseRowSpace(ev);
+    this->MarkShut();  
+  }
+}
+
+/*public virtual*/
+morkRowSpace::~morkRowSpace() // assert CloseRowSpace() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkRowSpace::morkRowSpace(morkEnv* ev, 
+  const morkUsage& inUsage, mork_scope inScope, morkStore* ioStore,
+  nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+: morkSpace(ev, inUsage, inScope, ioStore, ioHeap, ioSlotHeap)
+, mRowSpace_Tables(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioSlotHeap)
+, mRowSpace_Rows(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioSlotHeap,
+  morkRowSpace_kStartRowMapSlotCount)
+, mRowSpace_NextTableId( 1 )
+, mRowSpace_NextRowId( 1 )
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kRowSpace;
+}
+
+/*public non-poly*/ void
+morkRowSpace::CloseRowSpace(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mRowSpace_Tables.CloseMorkNode(ev);
+      
+      morkStore* store = mSpace_Store;
+      if ( store )
+          this->CutAllRows(ev, &store->mStore_Pool);
+      
+      mRowSpace_Rows.CloseMorkNode(ev);
+      this->CloseSpace(ev);
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void
+morkRowSpace::NonRowSpaceTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkRowSpace");
+}
+
+/*static*/ void
+morkRowSpace::ZeroKindError(morkEnv* ev)
+{
+  ev->NewError("zero table kind");
+}
+
+/*static*/ void
+morkRowSpace::ZeroScopeError(morkEnv* ev)
+{
+  ev->NewError("zero row scope");
+}
+
+/*static*/ void
+morkRowSpace::ZeroTidError(morkEnv* ev)
+{
+  ev->NewError("zero table ID");
+}
+
+/*static*/ void
+morkRowSpace::MinusOneRidError(morkEnv* ev)
+{
+  ev->NewError("row ID is -1");
+}
+
+///*static*/ void
+//morkRowSpace::ExpectAutoIdOnlyError(morkEnv* ev)
+//{
+//  ev->NewError("zero row ID");
+//}
+
+///*static*/ void
+//morkRowSpace::ExpectAutoIdNeverError(morkEnv* ev)
+//{
+//}
+
+mork_num
+morkRowSpace::CutAllRows(morkEnv* ev, morkPool* ioPool)
+{
+  mork_num outSlots = mRowSpace_Rows.mMap_Fill;
+  morkRow* r = 0; // old key row in the map
+  
+  mork_change* c = 0;
+  morkRowMapIter i(ev, &mRowSpace_Rows);
+  for ( c = i.FirstRow(ev, &r); c && ev->Good();
+        c = i.NextRow(ev, &r) )
+  {
+    if ( r->IsRow() )
+    {
+      if ( r->mRow_Object )
+      {
+        morkRowObject::SlotWeakRowObject((morkRowObject*) 0, ev,
+          &r->mRow_Object);
+      }
+      if ( r )
+        ioPool->ZapRow(ev, r);
+    }
+    else
+      r->NonRowTypeWarning(ev);
+    
+    i.CutHereRow(ev, /*key*/ (morkRow**) 0);
+  }
+  
+  return outSlots;
+}
+
+
+morkTable*
+morkRowSpace::FindTableByKind(morkEnv* ev, mork_kind inTableKind)
+{
+  if ( inTableKind )
+  {
+    mork_tid* key = 0; // nil pointer to suppress key access
+    morkTable* table = 0; // old table in the map
+
+    mork_change* c = 0;
+    morkTableMapIter i(ev, &mRowSpace_Tables);
+    for ( c = i.FirstTable(ev, key, &table); c && ev->Good();
+          c = i.NextTable(ev, key, &table) )
+    {
+      if ( table->mTable_Kind == inTableKind )
+        return table;
+    }
+  }
+  else
+    this->ZeroKindError(ev);
+    
+  return (morkTable*) 0;
+}
+
+morkTable*
+morkRowSpace::NewTable(morkEnv* ev, mork_kind inTableKind,
+  mdb_bool inMustBeUnique)
+{
+  morkTable* outTable = 0;
+  
+  if ( inTableKind )
+  {
+    if ( inMustBeUnique ) // need to look for existing table first?
+      outTable = this->FindTableByKind(ev, inTableKind);
+      
+    if ( !outTable && ev->Good() )
+    {
+      mork_tid id = this->MakeNewTableId(ev);
+      if ( id )
+      {
+        nsIMdbHeap* heap = mSpace_Store->mPort_Heap;
+        morkTable* table = new(*heap, ev)
+          morkTable(ev, morkUsage::kHeap, heap, mSpace_Store, heap, this,
+            id, inTableKind, inMustBeUnique);
+        if ( table )
+        {
+          if ( mRowSpace_Tables.AddTable(ev, table) )
+            outTable = table;
+          else
+            table->CutStrongRef(ev);
+        }
+      }
+    }
+  }
+  else
+    this->ZeroKindError(ev);
+    
+  return outTable;
+}
+
+mork_tid
+morkRowSpace::MakeNewTableId(morkEnv* ev)
+{
+  mork_tid outTid = 0;
+  mork_tid id = mRowSpace_NextTableId;
+  mork_num count = 9; // try up to eight times
+  
+  while ( !outTid && --count ) // still trying to find an unused table ID?
+  {
+    if ( !mRowSpace_Tables.GetTable(ev, id) )
+      outTid = id;
+    else
+    {
+      MORK_ASSERT(morkBool_kFalse); // alert developer about ID problems
+      ++id;
+    }
+  }
+  
+  mRowSpace_NextTableId = id + 1;
+  return outTid;
+}
+
+mork_rid
+morkRowSpace::MakeNewRowId(morkEnv* ev)
+{
+  mork_rid outRid = 0;
+  mork_rid id = mRowSpace_NextRowId;
+  mork_num count = 9; // try up to eight times
+  mdbOid oid;
+  oid.mOid_Scope = mSpace_Scope;
+  
+  while ( !outRid && --count ) // still trying to find an unused row ID?
+  {
+    oid.mOid_Id = id;
+    if ( !mRowSpace_Rows.GetOid(ev, &oid) )
+      outRid = id;
+    else
+    {
+      MORK_ASSERT(morkBool_kFalse); // alert developer about ID problems
+      ++id;
+    }
+  }
+  
+  mRowSpace_NextRowId = id + 1;
+  return outRid;
+}
+
+
+morkRow*
+morkRowSpace::NewRowWithOid(morkEnv* ev, const mdbOid* inOid)
+{
+  morkRow* outRow = mRowSpace_Rows.GetOid(ev, inOid);
+  MORK_ASSERT(outRow==0);
+  if ( !outRow && ev->Good() )
+  {
+    morkPool* pool = this->GetSpaceStorePool();
+    morkRow* row = pool->NewRow(ev);
+    if ( row )
+    {
+      row->InitRow(ev, inOid, this, /*length*/ 0, pool);
+      
+      if ( ev->Good() && mRowSpace_Rows.AddRow(ev, row) )
+        outRow = row;
+      else
+        pool->ZapRow(ev, row);
+    }
+  }
+  return outRow;
+}
+
+morkRow*
+morkRowSpace::NewRow(morkEnv* ev)
+{
+  morkRow* outRow = 0;
+  if ( ev->Good() )
+  {
+    mork_rid id = this->MakeNewRowId(ev);
+    if ( id )
+    {
+      mdbOid oid;
+      oid.mOid_Scope = mSpace_Scope;
+      oid.mOid_Id = id;
+      morkPool* pool = this->GetSpaceStorePool();
+      morkRow* row = pool->NewRow(ev);
+      if ( row )
+      {
+        row->InitRow(ev, &oid, this, /*length*/ 0, pool);
+        
+        if ( ev->Good() && mRowSpace_Rows.AddRow(ev, row) )
+          outRow = row;
+        else
+          pool->ZapRow(ev, row);
+      }
+    }
+  }
+  return outRow;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+morkRowSpaceMap::~morkRowSpaceMap()
+{
+}
+
+morkRowSpaceMap::morkRowSpaceMap(morkEnv* ev, const morkUsage& inUsage,
+  nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+  : morkNodeMap(ev, inUsage, ioHeap, ioSlotHeap)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kRowSpaceMap;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkRowSpace.h

@@ -0,0 +1,203 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKROWSPACE_
+#define _MORKROWSPACE_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKSPACE_
+#include "morkSpace.h"
+#endif
+
+#ifndef _MORKNODEMAP_
+#include "morkNodeMap.h"
+#endif
+
+#ifndef _MORKROWMAP_
+#include "morkRowMap.h"
+#endif
+
+#ifndef _MORKTABLE_
+#include "morkTable.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kRowSpace  /*i*/ 0x7253 /* ascii 'rS' */
+
+#define morkRowSpace_kStartRowMapSlotCount 512
+
+/*| morkRowSpace:
+|*/
+class morkRowSpace : public morkSpace { // 
+
+// public: // slots inherited from morkSpace (meant to inform only)
+  // nsIMdbHeap*    mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+  
+  // morkStore*  mSpace_Store; // weak ref to containing store
+  // mork_scope  mSpace_Scope; // the scope for this space
+  
+  // mork_bool   mSpace_DoAutoIDs;    // whether db should assign member IDs
+  // mork_bool   mSpace_HaveDoneAutoIDs; // whether actually auto assigned IDs
+  // mork_u1     mSpace_Pad[ 2 ];     // pad to u4 alignment
+
+public: // state is public because the entire Mork system is private
+
+  morkRowMap   mRowSpace_Rows;   // hash table of morkRow instances
+  morkTableMap mRowSpace_Tables; // all the tables in this row scope
+
+  mork_tid     mRowSpace_NextTableId; // for auto-assigning table IDs
+  mork_rid     mRowSpace_NextRowId;   // for auto-assigning row IDs
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseRowSpace() only if open
+  virtual ~morkRowSpace(); // assert that CloseRowSpace() executed earlier
+  
+public: // morkMap construction & destruction
+  morkRowSpace(morkEnv* ev, const morkUsage& inUsage, mork_scope inScope,
+    morkStore* ioStore, nsIMdbHeap* ioNodeHeap, nsIMdbHeap* ioSlotHeap);
+  void CloseRowSpace(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsRowSpace() const
+  { return IsNode() && mNode_Derived == morkDerived_kRowSpace; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonRowSpaceTypeError(morkEnv* ev);
+  static void ZeroScopeError(morkEnv* ev);
+  static void ZeroKindError(morkEnv* ev);
+  static void ZeroTidError(morkEnv* ev);
+  static void MinusOneRidError(morkEnv* ev);
+
+  //static void ExpectAutoIdOnlyError(morkEnv* ev);
+  //static void ExpectAutoIdNeverError(morkEnv* ev);
+
+public: // other space methods
+
+  mork_num CutAllRows(morkEnv* ev, morkPool* ioPool);
+  // CutAllRows() puts all rows and cells back into the pool.
+  
+  morkTable* NewTable(morkEnv* ev, mork_kind inTableKind,
+    mdb_bool inMustBeUnique);
+  
+  morkTable* FindTableByKind(morkEnv* ev, mork_kind inTableKind);
+  morkTable* FindTableByTid(morkEnv* ev, mork_tid inTid)
+  { return mRowSpace_Tables.GetTable(ev, inTid); }
+
+  mork_tid MakeNewTableId(morkEnv* ev);
+  mork_rid MakeNewRowId(morkEnv* ev);
+
+  // morkRow* FindRowByRid(morkEnv* ev, mork_rid inRid)
+  // { return (morkRow*) mRowSpace_Rows.GetRow(ev, inRid); }
+
+  morkRow* NewRowWithOid(morkEnv* ev, const mdbOid* inOid);
+  morkRow* NewRow(morkEnv* ev);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakRowSpace(morkRowSpace* me,
+    morkEnv* ev, morkRowSpace** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongRowSpace(morkRowSpace* me,
+    morkEnv* ev, morkRowSpace** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kRowSpaceMap  /*i*/ 0x725A /* ascii 'rZ' */
+
+/*| morkRowSpaceMap: maps mork_scope -> morkRowSpace
+|*/
+class morkRowSpaceMap : public morkNodeMap { // for mapping tokens to tables
+
+public:
+
+  virtual ~morkRowSpaceMap();
+  morkRowSpaceMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap);
+
+public: // other map methods
+
+  mork_bool  AddRowSpace(morkEnv* ev, morkRowSpace* ioRowSpace)
+  { return this->AddNode(ev, ioRowSpace->mSpace_Scope, ioRowSpace); }
+  // the AddRowSpace() boolean return equals ev->Good().
+
+  mork_bool  CutRowSpace(morkEnv* ev, mork_scope inScope)
+  { return this->CutNode(ev, inScope); }
+  // The CutRowSpace() boolean return indicates whether removal happened. 
+  
+  morkRowSpace*  GetRowSpace(morkEnv* ev, mork_scope inScope)
+  { return (morkRowSpace*) this->GetNode(ev, inScope); }
+  // Note the returned space does NOT have an increase in refcount for this.
+
+  mork_num CutAllRowSpaces(morkEnv* ev)
+  { return this->CutAllNodes(ev); }
+  // CutAllRowSpaces() releases all the referenced table values.
+};
+
+class morkRowSpaceMapIter: public morkMapIter{ // typesafe wrapper class
+
+public:
+  morkRowSpaceMapIter(morkEnv* ev, morkRowSpaceMap* ioMap)
+  : morkMapIter(ev, ioMap) { }
+ 
+  morkRowSpaceMapIter( ) : morkMapIter()  { }
+  void InitRowSpaceMapIter(morkEnv* ev, morkRowSpaceMap* ioMap)
+  { this->InitMapIter(ev, ioMap); }
+   
+  mork_change*
+  FirstRowSpace(morkEnv* ev, mork_scope* outScope, morkRowSpace** outRowSpace)
+  { return this->First(ev, outScope, outRowSpace); }
+  
+  mork_change*
+  NextRowSpace(morkEnv* ev, mork_scope* outScope, morkRowSpace** outRowSpace)
+  { return this->Next(ev, outScope, outRowSpace); }
+  
+  mork_change*
+  HereRowSpace(morkEnv* ev, mork_scope* outScope, morkRowSpace** outRowSpace)
+  { return this->Here(ev, outScope, outRowSpace); }
+  
+  mork_change*
+  CutHereRowSpace(morkEnv* ev, mork_scope* outScope, morkRowSpace** outRowSpace)
+  { return this->CutHere(ev, outScope, outRowSpace); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKROWSPACE_ */

mozilla/db/mork/src/morkSink.cpp

@@ -0,0 +1,113 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKSINK_
+#include "morkSink.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/*virtual*/ morkSink::~morkSink()
+{
+  mSink_At = 0;
+  mSink_End = 0;
+}
+
+/*virtual*/ void
+morkSpoolSink::FlushSink(morkEnv* ev) // probably does nothing
+{
+  ev->StubMethodOnlyError();
+}
+
+/*virtual*/ void
+morkSpoolSink::SpillPutc(morkEnv* ev, int c) // grow spool and write byte
+{
+  ev->StubMethodOnlyError();
+}
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+// public: // public non-poly morkSink methods
+
+/*virtual*/
+morkSpoolSink::~morkSpoolSink()
+// Zero all slots to show this sink is disabled, but destroy no memory.
+// Note it is typically unnecessary to flush this spool sink, since all
+// content is written directly to the spool without any buffering.
+{
+}
+
+morkSpoolSink::morkSpoolSink(morkEnv* ev, morkSpool* ioSpool)
+// After installing the spool, calls Seek(ev, 0) to prepare for writing.
+: morkSink()
+, mSpoolSink_Spool( 0 )
+{
+  if ( ev->Good() )
+  {
+    if ( ioSpool )
+    {
+      // ev->StubMethodOnlyError();
+      mSink_At = 0;
+      mSink_End = 0;
+      mSpoolSink_Spool = ioSpool;
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+// ----- All boolean return values below are equal to ev->Good(): -----
+
+mork_bool
+morkSpoolSink::Seek(morkEnv* ev, mork_pos inPos)
+// Changed the current write position in spool's buffer to inPos.
+// For example, to start writing the spool from scratch, use inPos==0.
+{
+  ev->StubMethodOnlyError();
+  return ev->Good();
+}
+
+mork_bool
+morkSpoolSink::Write(morkEnv* ev, const void* inBuf, mork_size inSize)
+// write inSize bytes of inBuf to current position inside spool's buffer
+{
+  ev->StubMethodOnlyError();
+  return ev->Good();
+}
+
+mork_bool
+morkSpoolSink::PutString(morkEnv* ev, const char* inString)
+// call Write() with inBuf=inString and inSize=strlen(inString),
+// unless inString is null, in which case we then do nothing at all.
+{
+  ev->StubMethodOnlyError();
+  return ev->Good();
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkSink.h

@@ -0,0 +1,169 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKSINK_
+#define _MORKSINK_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKBLOB_
+#include "morkBlob.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/*| morkSink is intended to be a very cheap buffered i/o sink which
+**| writes to bufs and other strings a single byte at a time.  The
+**| basic idea is that writing a single byte has a very cheap average
+**| cost, because a polymophic function call need only occur when the
+**| space between At and End is exhausted.  The rest of the time a
+**| very cheap inline method will write a byte, and then bump a pointer.
+**|
+**|| At: the current position in some sequence of bytes at which to
+**| write the next byte put into the sink.  Presumably At points into
+**| the private storage of some space which is not yet filled (except
+**| when At reaches End, and the overflow must then spill).  Note both
+**| At and End are zeroed in the destructor to help show that a sink
+**| is no longer usable; this is safe because At==End causes the case
+**| where SpillPutc() is called to handled an exhausted buffer space.
+**|
+**|| End: an address one byte past the last byte which can be written
+**| without needing to make a buffer larger than previously.  When At
+**| and End are equal, this means there is no space to write a byte,
+**| and that some underlying buffer space must be grown before another
+**| byte can be written.  Note At must always be less than or equal to
+**| End, and otherwise an important invariant has failed severely.
+**|
+**|| Buf: this original class slot has been commented out in the new
+**| and more abstract version of this sink class, but the general idea
+**| behind this slot should be explained to help design subclasses.
+**| Each subclass should provide space into which At and End can point,
+**| where End is beyond the last writable byte, and At is less than or
+**| equal to this point inside the same buffer.  With some kinds of
+**| medium, such as writing to an instance of morkBlob, it is feasible
+**| to point directly into the final resting place for all the content
+**| written to the medium.  Other mediums such as files, which write
+**| only through function calls, will typically need a local buffer
+**| to efficiently accumulate many bytes between such function calls.
+**|
+**|| FlushSink: this flush method should move any buffered content to 
+**| it's final destination.  For example, for buffered writes to a
+**| string medium, where string methods are function calls and not just
+**| inline macros, it is faster to accumulate many bytes in a small
+**| local buffer and then move these en masse later in a single call.
+**|
+**|| SpillPutc: when At is greater than or equal to End, this means an
+**| underlying buffer has become full, so the buffer must be flushed
+**| before a new byte can be written.  The intention is that SpillPutc()
+**| will be equivalent to calling FlushSink() followed by another call
+**| to Putc(), where the flush is expected to make At less then End once
+**| again.  Except that FlushSink() need not make the underlying buffer
+**| any larger, and SpillPutc() typically must make room for more bytes.
+**| Note subclasses might want to guard against the case that both At
+**| and End are null, which happens when a sink is destroyed, which sets
+**| both these pointers to null as an indication the sink is disabled.
+|*/
+class morkSink {
+    
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // public sink virtual methods
+
+  virtual void FlushSink(morkEnv* ev) = 0;
+  virtual void SpillPutc(morkEnv* ev, int c) = 0;
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // member variables
+
+  mork_u1*     mSink_At;     // pointer into mSink_Buf
+  mork_u1*     mSink_End;    // one byte past last content byte
+
+// define morkSink_kBufSize 256 /* small enough to go on stack */
+
+  // mork_u1      mSink_Buf[ morkSink_kBufSize + 4 ];
+  // want plus one for any needed end null byte; use plus 4 for alignment
+   
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // public non-poly morkSink methods
+
+  virtual ~morkSink(); // zero both At and End; virtual for subclasses
+  morkSink() { } // does nothing; subclasses must set At and End suitably
+
+  void Putc(morkEnv* ev, int c)
+  { 
+    if ( mSink_At < mSink_End )
+      *mSink_At++ = (mork_u1) c;
+    else
+      this->SpillPutc(ev, c);
+  }
+};
+
+/*| morkSpoolSink: an output sink that efficiently writes individual bytes
+**| or entire byte sequences to a spool instance, which grows as needed by
+**| using the heap instance in the spool to grow the internal buffer.
+**|
+**|| Note we do not "own" the spool referenced by mSpoolSink_Spool, and
+**| the lifetime of the spool is expected to equal or exceed that of this
+**| sink by some external means.  Typical usage might involve keeping an
+**| instance of morkSpool and an instance of morkSpoolSink in the same
+**| owning parent object, which uses the sink with the associated spool.
+|*/
+class morkSpoolSink : public morkSink { // for buffered i/o to a morkSpool
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // public sink virtual methods
+
+  virtual void FlushSink(morkEnv* ev); // probably does nothing
+  virtual void SpillPutc(morkEnv* ev, int c); // grow spool and write byte
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // member variables
+  morkSpool*   mSpoolSink_Spool; // destination medium for written bytes
+    
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // public non-poly morkSink methods
+
+  virtual ~morkSpoolSink();
+  // Zero all slots to show this sink is disabled, but destroy no memory.
+  // Note it is typically unnecessary to flush this spool sink, since all
+  // content is written directly to the spool without any buffering.
+  
+  morkSpoolSink(morkEnv* ev, morkSpool* ioSpool);
+  // After installing the spool, calls Seek(ev, 0) to prepare for writing.
+  
+  // ----- All boolean return values below are equal to ev->Good(): -----
+
+  mork_bool Seek(morkEnv* ev, mork_pos inPos);
+  // Changed the current write position in spool's buffer to inPos.
+  // For example, to start writing the spool from scratch, use inPos==0.
+
+  mork_bool Write(morkEnv* ev, const void* inBuf, mork_size inSize);
+  // write inSize bytes of inBuf to current position inside spool's buffer
+
+  mork_bool PutBuf(morkEnv* ev, const morkBuf& inBuffer)
+  { return this->Write(ev, inBuffer.mBuf_Body, inBuffer.mBuf_Fill); }
+  
+  mork_bool PutString(morkEnv* ev, const char* inString);
+  // call Write() with inBuf=inString and inSize=strlen(inString),
+  // unless inString is null, in which case we then do nothing at all.
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKSINK_ */

mozilla/db/mork/src/morkSpace.cpp

@@ -0,0 +1,141 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKSPACE_
+#include "morkSpace.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkSpace::CloseMorkNode(morkEnv* ev) // CloseSpace() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseSpace(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkSpace::~morkSpace() // assert CloseSpace() executed earlier
+{
+  MORK_ASSERT(mSpace_Scope==0);
+  MORK_ASSERT(mSpace_Store==0);
+  MORK_ASSERT(this->IsShutNode());
+}    
+
+/*public non-poly*/
+//morkSpace::morkSpace(morkEnv* ev, const morkUsage& inUsage,
+//  nsIMdbHeap* ioNodeHeap, const morkMapForm& inForm,
+//  nsIMdbHeap* ioSlotHeap)
+//: morkNode(ev, inUsage, ioNodeHeap)
+//, mSpace_Map(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioSlotHeap)
+//{
+//  ev->StubMethodOnlyError();
+//}
+
+/*public non-poly*/
+morkSpace::morkSpace(morkEnv* ev,
+  const morkUsage& inUsage, mork_scope inScope, morkStore* ioStore,
+  nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+: morkNode(ev, inUsage, ioHeap)
+, mSpace_Store( 0 )
+, mSpace_Scope( inScope )
+, mSpace_DoAutoIDs( morkBool_kFalse )
+, mSpace_HaveDoneAutoIDs( morkBool_kFalse )
+{
+  if ( ev->Good() )
+  {
+    if ( ioStore )
+    {
+      morkStore::SlotWeakStore(ioStore, ev, &mSpace_Store);
+      if ( ev->Good() )
+        mNode_Derived = morkDerived_kSpace;
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkSpace::CloseSpace(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      morkStore::SlotWeakStore((morkStore*) 0, ev, &mSpace_Store);
+      mSpace_Scope = 0;
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void 
+morkSpace::NonAsciiSpaceScopeName(morkEnv* ev)
+{
+  ev->NewError("mSpace_Scope > 0x7F");
+}
+
+morkPool* morkSpace::GetSpaceStorePool() const
+{
+  return &mSpace_Store->mStore_Pool;
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkSpace.h

@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKSPACE_
+#define _MORKSPACE_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkSpace_kInitialSpaceSlots  /*i*/ 1024 /* default */
+#define morkDerived_kSpace  /*i*/ 0x5370 /* ascii 'Sp' */
+
+/*| morkSpace:
+|*/
+class morkSpace : public morkNode { // 
+
+// public: // slots inherited from morkNode (meant to inform only)
+  // nsIMdbHeap*       mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+
+public: // state is public because the entire Mork system is private
+
+  morkStore*  mSpace_Store; // weak ref to containing store
+  
+  mork_scope  mSpace_Scope; // the scope for this space
+  
+  mork_bool   mSpace_DoAutoIDs;    // whether db should assign member IDs
+  mork_bool   mSpace_HaveDoneAutoIDs; // whether actually auto assigned IDs
+  mork_u1     mSpace_Pad[ 2 ];     // pad to u4 alignment
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseSpace() only if open
+  virtual ~morkSpace(); // assert that CloseSpace() executed earlier
+  
+public: // morkMap construction & destruction
+  //morkSpace(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioNodeHeap,
+  //  const morkMapForm& inForm, nsIMdbHeap* ioSlotHeap);
+  
+  morkSpace(morkEnv* ev, const morkUsage& inUsage,mork_scope inScope, 
+    morkStore* ioStore, nsIMdbHeap* ioNodeHeap, nsIMdbHeap* ioSlotHeap);
+  void CloseSpace(morkEnv* ev); // called by CloseMorkNode();
+
+public: // dynamic type identification
+  mork_bool IsSpace() const
+  { return IsNode() && mNode_Derived == morkDerived_kSpace; }
+// } ===== end morkNode methods =====
+
+public: // other space methods
+
+  static void NonAsciiSpaceScopeName(morkEnv* ev);
+
+  morkPool* GetSpaceStorePool() const;
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakSpace(morkSpace* me,
+    morkEnv* ev, morkSpace** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongSpace(morkSpace* me,
+    morkEnv* ev, morkSpace** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKSPACE_ */

mozilla/db/mork/src/morkStore.cpp

@@ -0,0 +1,818 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+  
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKBLOB_
+#include "morkBlob.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+#ifndef _ORKINSTORE_
+#include "orkinStore.h"
+#endif
+
+#ifndef _MORKFACTORY_
+#include "morkFactory.h"
+#endif
+
+#ifndef _MORKNODEMAP_
+#include "morkNodeMap.h"
+#endif
+
+#ifndef _MORKFILE_
+#include "morkFile.h"
+#endif
+
+#ifndef _MORKBUILDER_
+#include "morkBuilder.h"
+#endif
+
+#ifndef _MORKATOMSPACE_
+#include "morkAtomSpace.h"
+#endif
+
+#ifndef _MORKSTREAM_
+#include "morkStream.h"
+#endif
+
+#ifndef _MORKATOMSPACE_
+#include "morkAtomSpace.h"
+#endif
+
+#ifndef _MORKROWSPACE_
+#include "morkRowSpace.h"
+#endif
+
+#ifndef _MORKPORTTABLECURSOR_
+#include "morkPortTableCursor.h"
+#endif
+
+#ifndef _MORKTABLE_
+#include "morkTable.h"
+#endif
+
+#ifndef _MORKROWMAP_
+#include "morkRowMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkPort::CloseMorkNode(morkEnv* ev) // ClosePort() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->ClosePort(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkPort::~morkPort() // assert ClosePort() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+  MORK_ASSERT(mPort_Factory==0);
+  MORK_ASSERT(mPort_Heap==0);
+}
+
+/*public non-poly*/
+morkPort::morkPort(morkEnv* ev, const morkUsage& inUsage,
+   nsIMdbHeap* ioNodeHeap, // the heap (if any) for this node instance
+   morkFactory* inFactory, // the factory for this
+   nsIMdbHeap* ioPortHeap  // the heap to hold all content in the port
+   )
+: morkObject(ev, inUsage, ioNodeHeap, (morkHandle*) 0)
+, mPort_Env( ev )
+, mPort_Factory( 0 )
+, mPort_Heap( 0 )
+{
+  if ( ev->Good() )
+  {
+    if ( inFactory && ioPortHeap )
+    {
+      morkFactory::SlotWeakFactory(inFactory, ev, &mPort_Factory);
+      nsIMdbHeap_SlotStrongHeap(ioPortHeap, ev, &mPort_Heap);
+      if ( ev->Good() )
+        mNode_Derived = morkDerived_kPort;
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkPort::ClosePort(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      morkFactory::SlotWeakFactory((morkFactory*) 0, ev, &mPort_Factory);
+      nsIMdbHeap_SlotStrongHeap((nsIMdbHeap*) 0, ev, &mPort_Heap);
+      this->CloseObject(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkStore::CloseMorkNode(morkEnv* ev) // ClosePort() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseStore(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkStore::~morkStore() // assert CloseStore() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+  MORK_ASSERT(mStore_File==0);
+  MORK_ASSERT(mStore_InStream==0);
+  MORK_ASSERT(mStore_OutStream==0);
+  MORK_ASSERT(mStore_Builder==0);
+  MORK_ASSERT(mStore_OidAtomSpace==0);
+  MORK_ASSERT(mStore_GroundAtomSpace==0);
+  MORK_ASSERT(mStore_GroundColumnSpace==0);
+  MORK_ASSERT(mStore_RowSpaces.IsShutNode());
+  MORK_ASSERT(mStore_AtomSpaces.IsShutNode());
+  MORK_ASSERT(mStore_Pool.IsShutNode());
+}
+
+/*public non-poly*/
+morkStore::morkStore(morkEnv* ev, const morkUsage& inUsage,
+     nsIMdbHeap* ioNodeHeap, // the heap (if any) for this node instance
+     morkFactory* inFactory, // the factory for this
+     nsIMdbHeap* ioPortHeap  // the heap to hold all content in the port
+     )
+: morkPort(ev, inUsage, ioNodeHeap, inFactory, ioPortHeap)
+, mStore_File( 0 )
+, mStore_InStream( 0 )
+, mStore_OutStream( 0 )
+, mStore_Builder( 0 )
+, mStore_OidAtomSpace( 0 )
+, mStore_GroundAtomSpace( 0 )
+, mStore_GroundColumnSpace( 0 )
+, mStore_RowSpaces(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioPortHeap)
+, mStore_AtomSpaces(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioPortHeap)
+, mStore_Pool(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioPortHeap)
+{
+  if ( ev->Good() )
+  {
+    mNode_Derived = morkDerived_kStore;
+    
+    if ( ev->Good() )
+      mStore_CharsetToken = this->StringToToken(ev, "charset");
+
+    if ( ev->Good() )
+      mStore_AtomScopeToken = this->StringToToken(ev, "atomScope");
+
+    if ( ev->Good() )
+      mStore_RowScopeToken = this->StringToToken(ev, "rowScope");
+
+    if ( ev->Good() )
+      mStore_TableScopeToken = this->StringToToken(ev, "tableScope");
+
+    if ( ev->Good() )
+      mStore_ColumnScopeToken = this->StringToToken(ev, "columnScope");
+
+    if ( ev->Good() )
+      mStore_TableKindToken = this->StringToToken(ev, "tableKind");
+  }
+}
+
+/*public non-poly*/ void
+morkStore::CloseStore(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      morkFile* file = mStore_File;
+      if ( file && file->IsOpenNode() )
+        file->CloseMorkNode(ev);
+
+      morkAtomSpace::SlotStrongAtomSpace((morkAtomSpace*) 0, ev,
+        &mStore_OidAtomSpace);
+      morkAtomSpace::SlotStrongAtomSpace((morkAtomSpace*) 0, ev,
+        &mStore_GroundAtomSpace);
+      morkAtomSpace::SlotStrongAtomSpace((morkAtomSpace*) 0, ev,
+        &mStore_GroundColumnSpace);
+      mStore_RowSpaces.CloseMorkNode(ev);
+      mStore_AtomSpaces.CloseMorkNode(ev);
+      morkBuilder::SlotStrongBuilder((morkBuilder*) 0, ev, &mStore_Builder);
+      morkFile::SlotStrongFile((morkFile*) 0, ev, &mStore_File);
+      morkStream::SlotStrongStream((morkStream*) 0, ev, &mStore_InStream);
+      morkStream::SlotStrongStream((morkStream*) 0, ev, &mStore_OutStream);
+
+      mStore_Pool.CloseMorkNode(ev);
+      this->ClosePort(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+void
+morkStore::RenumberAllCollectableContent(morkEnv* ev)
+{
+  // do nothing currently
+}
+
+nsIMdbStore*
+morkStore::AcquireStoreHandle(morkEnv* ev)
+{
+  nsIMdbStore* outStore = 0;
+  orkinStore* s = (orkinStore*) mObject_Handle;
+  if ( s ) // have an old handle?
+    s->AddStrongRef(ev->AsMdbEnv());
+  else // need new handle?
+  {
+    s = orkinStore::MakeStore(ev, this);
+    mObject_Handle = s;
+  }
+  if ( s )
+    outStore = s;
+  return outStore;
+}
+
+
+morkMaxBookAtom*
+morkStore::StageYarnAsBookAtom(morkEnv* ev, const mdbYarn* inYarn,
+   morkAtomSpace* ioSpace)
+{
+  if ( inYarn && inYarn->mYarn_Buf )
+  {
+    mork_size length = inYarn->mYarn_Fill;
+    if ( length <= morkBookAtom_kMaxBodySize )
+    {
+      morkBuf buf(inYarn->mYarn_Buf, length);
+      mork_aid dummyAid = 1;
+      mStore_BookAtom.InitMaxBookAtom(ev, buf, 
+        inYarn->mYarn_Form, ioSpace, dummyAid);
+      return &mStore_BookAtom;
+    }
+  }
+  else
+    ev->NilPointerError();
+    
+  return (morkMaxBookAtom*) 0;
+}
+
+morkMaxBookAtom*
+morkStore::StageStringAsBookAtom(morkEnv* ev, const char* inString,
+   mork_cscode inForm, morkAtomSpace* ioSpace)
+// StageStringAsBookAtom() returns &mStore_BookAtom if inString is small
+// enough, such that strlen(inString) < morkBookAtom_kMaxBodySize.  And
+// content inside mStore_BookAtom will be the valid atom format for
+// inString. This method is the standard way to stage a string as an
+// atom for searching or adding new atoms into an atom space hash table.
+{
+  if ( inString )
+  {
+    mork_size length = MORK_STRLEN(inString);
+    if ( length <= morkBookAtom_kMaxBodySize )
+    {
+      morkBuf buf(inString, length);
+      mork_aid dummyAid = 1;
+      mStore_BookAtom.InitMaxBookAtom(ev, buf, inForm, ioSpace, dummyAid);
+      return &mStore_BookAtom;
+    }
+  }
+  else
+    ev->NilPointerError();
+    
+  return (morkMaxBookAtom*) 0;
+}
+
+morkAtomSpace* morkStore::LazyGetOidAtomSpace(morkEnv* ev)
+{
+  if ( !mStore_OidAtomSpace )
+  {
+  }
+  return mStore_OidAtomSpace;
+}
+
+morkAtomSpace* morkStore::LazyGetGroundAtomSpace(morkEnv* ev)
+{
+  if ( !mStore_GroundAtomSpace )
+  {
+    mork_scope atomScope = morkStore_kGroundAtomSpace;
+    nsIMdbHeap* heap = mPort_Heap;
+    morkAtomSpace* space = new(*heap, ev) 
+      morkAtomSpace(ev, morkUsage::kHeap, atomScope, this, heap, heap);
+      
+    if ( space ) // successful space creation?
+    {
+      mStore_GroundAtomSpace = space; // transfer strong ref to this slot
+      mStore_AtomSpaces.AddAtomSpace(ev, space);
+    }
+  }
+  return mStore_GroundAtomSpace;
+}
+
+morkAtomSpace* morkStore::LazyGetGroundColumnSpace(morkEnv* ev)
+{
+  if ( !mStore_GroundColumnSpace )
+  {
+    mork_scope atomScope = morkStore_kGroundColumnSpace;
+    nsIMdbHeap* heap = mPort_Heap;
+    morkAtomSpace* space = new(*heap, ev) 
+      morkAtomSpace(ev, morkUsage::kHeap, atomScope, this, heap, heap);
+      
+    if ( space ) // successful space creation?
+    {
+      mStore_GroundColumnSpace = space; // transfer strong ref to this slot
+      mStore_AtomSpaces.AddAtomSpace(ev, space);
+    }
+  }
+  return mStore_GroundColumnSpace;
+}
+
+morkStream* morkStore::LazyGetInStream(morkEnv* ev)
+{
+  if ( !mStore_InStream )
+  {
+    morkFile* file = mStore_File;
+    if ( file )
+    {
+      morkStream* stream = new(*mPort_Heap, ev) 
+        morkStream(ev, morkUsage::kHeap, mPort_Heap, file,
+          morkStore_kStreamBufSize, /*frozen*/ morkBool_kTrue);
+      if ( stream )
+      {
+        mStore_InStream = stream; // transfer strong ref to this slot
+      }
+    }
+    else
+      this->NilStoreFileError(ev);
+  }
+  return mStore_InStream;
+}
+
+morkStream* morkStore::LazyGetOutStream(morkEnv* ev)
+{
+  if ( !mStore_OutStream )
+  {
+    morkFile* file = mStore_File;
+    if ( file )
+    {
+      morkStream* stream = new(*mPort_Heap, ev) 
+        morkStream(ev, morkUsage::kHeap, mPort_Heap, file,
+          morkStore_kStreamBufSize, /*frozen*/ morkBool_kFalse);
+      if ( stream )
+      {
+        mStore_InStream = stream; // transfer strong ref to this slot
+      }
+    }
+    else
+      this->NilStoreFileError(ev);
+  }
+  return mStore_OutStream;
+}
+
+morkBuilder* morkStore::LazyGetBuilder(morkEnv* ev)
+{
+  if ( !mStore_Builder )
+  {
+    morkStream* stream = this->LazyGetInStream(ev);
+    if ( stream )
+    {
+      nsIMdbHeap* heap = mPort_Heap;
+      morkBuilder* builder = new(*heap, ev) 
+        morkBuilder(ev, morkUsage::kHeap, heap, stream,
+          morkBuilder_kDefaultBytesPerParseSegment, heap, this);
+      if ( builder )
+      {
+        mStore_Builder = builder; // transfer strong ref to this slot
+      }
+    }
+  }
+  return mStore_Builder;
+}
+
+morkRowSpace*
+morkStore::LazyGetRowSpace(morkEnv* ev, mdb_scope inRowScope)
+{
+  morkRowSpace* outSpace = mStore_RowSpaces.GetRowSpace(ev, inRowScope);
+  if ( !outSpace && ev->Good() ) // try to make new space?
+  {
+    nsIMdbHeap* heap = mPort_Heap;
+    outSpace = new(*heap, ev) 
+      morkRowSpace(ev, morkUsage::kHeap, inRowScope, this, heap, heap);
+      
+    if ( outSpace ) // successful space creation?
+    {
+      // note adding to node map creates it's own strong ref...
+      if ( mStore_RowSpaces.AddRowSpace(ev, outSpace) )
+        outSpace->CutStrongRef(ev); // ...so we can drop our strong ref
+    }
+  }
+  return outSpace;
+}
+
+morkAtomSpace*
+morkStore::LazyGetAtomSpace(morkEnv* ev, mdb_scope inAtomScope)
+{
+  morkAtomSpace* outSpace = mStore_AtomSpaces.GetAtomSpace(ev, inAtomScope);
+  if ( !outSpace && ev->Good() ) // try to make new space?
+  {
+    if ( inAtomScope == morkStore_kGroundAtomSpace )
+      outSpace = this->LazyGetGroundAtomSpace(ev);
+      
+    else if ( inAtomScope == morkStore_kGroundColumnSpace )
+      outSpace = this->LazyGetGroundColumnSpace(ev);
+    else
+    {
+      nsIMdbHeap* heap = mPort_Heap;
+      outSpace = new(*heap, ev) 
+        morkAtomSpace(ev, morkUsage::kHeap, inAtomScope, this, heap, heap);
+        
+      if ( outSpace ) // successful space creation?
+      {
+        // note adding to node map creates it's own strong ref...
+        if ( mStore_AtomSpaces.AddAtomSpace(ev, outSpace) )
+          outSpace->CutStrongRef(ev); // ...so we can drop our strong ref
+      }
+    }
+  }
+  return outSpace;
+}
+
+/*static*/ void
+morkStore::NonStoreTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkStore");
+}
+
+/*static*/ void
+morkStore::NilStoreFileError(morkEnv* ev)
+{
+  ev->NewError("nil mStore_File");
+}
+
+
+mork_bool
+morkStore::OpenStoreFile(morkEnv* ev, mork_bool inFrozen,
+    const char* inFilePath, const mdbOpenPolicy* inOpenPolicy)
+{
+  morkFile::SlotStrongFile((morkFile*) 0, ev, &mStore_File);
+  if ( ev->Good() )
+  {
+    morkFile* file = morkFile::OpenOldFile(ev, mPort_Heap,
+      inFilePath, inFrozen);
+    if ( file )
+    {
+      if ( ev->Good() )
+        morkFile::SlotStrongFile(file, ev, &mStore_File);
+      else
+        file->CutStrongRef(ev);
+    }
+  }
+  return ev->Good();
+}
+
+mork_bool
+morkStore::CreateStoreFile(morkEnv* ev,
+    const char* inFilePath, const mdbOpenPolicy* inOpenPolicy)
+{
+  morkFile::SlotStrongFile((morkFile*) 0, ev, &mStore_File);
+  if ( ev->Good() )
+  {
+    morkFile* file = morkFile::CreateNewFile(ev, mPort_Heap,
+      inFilePath);
+    if ( file )
+    {
+      if ( ev->Good() )
+        morkFile::SlotStrongFile(file, ev, &mStore_File);
+      else
+        file->CutStrongRef(ev);
+    }
+  }
+  return ev->Good();
+}
+  
+morkAtom*
+morkStore::YarnToAtom(morkEnv* ev, const mdbYarn* inYarn)
+{
+  morkAtom* outAtom = 0;
+  if ( ev->Good() )
+  {
+    morkAtomSpace* groundSpace = this->LazyGetGroundAtomSpace(ev);
+    if ( groundSpace )
+    {
+      morkMaxBookAtom* keyAtom =
+        this->StageYarnAsBookAtom(ev, inYarn, groundSpace);
+        
+      if ( keyAtom )
+      {
+        morkAtomBodyMap* map = &groundSpace->mAtomSpace_AtomBodies;
+        outAtom = map->GetAtom(ev, keyAtom);
+        if ( !outAtom )
+          outAtom = groundSpace->MakeBookAtomCopy(ev, *keyAtom);
+      }
+      else if ( ev->Good() )
+      {
+        morkBuf buf(inYarn->mYarn_Buf, inYarn->mYarn_Fill);
+        outAtom = mStore_Pool.NewAnonAtom(ev, buf, inYarn->mYarn_Form);
+      }
+    }
+  }
+  return outAtom;
+}
+
+// mork_bool
+// morkStore::CutBookAtom(morkEnv* ev, morkBookAtom* ioAtom)
+// {
+// }
+
+void
+morkStore::TokenToString(morkEnv* ev, mdb_token inToken, mdbYarn* outTokenName)
+{
+  if ( inToken > morkAtomSpace_kMaxSevenBitAid )
+  {
+    morkBookAtom* atom = 0;
+    morkAtomSpace* space = mStore_GroundColumnSpace;
+    if ( space )
+      atom = space->mAtomSpace_AtomAids.GetAid(ev, (mork_aid) inToken);
+      
+    atom->GetYarn(outTokenName); // note this is safe even when atom==nil
+  }
+  else // token is an "immediate" single byte string representation?
+  {
+    mdbYarn* y = outTokenName;
+    if ( y->mYarn_Buf && y->mYarn_Size ) // any space in yarn at all?
+    {
+      mork_u1* buf = (mork_u1*) y->mYarn_Buf; // for byte arithmetic
+      buf[ 0 ] = (mork_u1) inToken; // write the single byte
+      y->mYarn_Fill = 1;
+      y->mYarn_More = 0;
+    }
+    else // just record we could not write the single byte
+    {
+      y->mYarn_More = 1;
+      y->mYarn_Fill = 0;
+    }
+  }
+}
+
+mork_token
+morkStore::StringToToken(morkEnv* ev, const char* inTokenName)
+{
+  mork_token outToken = 0;
+  if ( ev->Good() )
+  {
+    const mork_u1* s = (const mork_u1*) inTokenName;
+    mork_bool nonAscii = ( *s > 0x7F );
+    if ( nonAscii || ( *s && s[ 1 ] ) ) // more than one byte?
+    {
+      mork_cscode form = 0; // default charset
+      morkAtomSpace* groundSpace = this->LazyGetGroundColumnSpace(ev);
+      if ( groundSpace )
+      {
+        morkMaxBookAtom* keyAtom =
+          this->StageStringAsBookAtom(ev, inTokenName, form, groundSpace);
+        if ( keyAtom )
+        {
+          morkAtomBodyMap* map = &groundSpace->mAtomSpace_AtomBodies;
+          morkBookAtom* bookAtom = map->GetAtom(ev, keyAtom);
+          if ( bookAtom )
+            outToken = bookAtom->mBookAtom_Id;
+          else
+          {
+            bookAtom = groundSpace->MakeBookAtomCopy(ev, *keyAtom);
+            if ( bookAtom )
+            {
+              outToken = bookAtom->mBookAtom_Id;
+              bookAtom->MakeCellUseForever(ev);
+            }
+          }
+        }
+      }
+    }
+    else // only a single byte in inTokenName string:
+      outToken = *s;
+  }
+  
+  return outToken;
+}
+
+mork_token
+morkStore::QueryToken(morkEnv* ev, const char* inTokenName)
+{
+  mork_token outToken = 0;
+  if ( ev->Good() )
+  {
+    const mork_u1* s = (const mork_u1*) inTokenName;
+    mork_bool nonAscii = ( *s > 0x7F );
+    if ( nonAscii || ( *s && s[ 1 ] ) ) // more than one byte?
+    {
+      mork_cscode form = 0; // default charset
+      morkAtomSpace* groundSpace = this->LazyGetGroundColumnSpace(ev);
+      if ( groundSpace )
+      {
+        morkMaxBookAtom* keyAtom =
+          this->StageStringAsBookAtom(ev, inTokenName, form, groundSpace);
+        if ( keyAtom )
+        {
+          morkAtomBodyMap* map = &groundSpace->mAtomSpace_AtomBodies;
+          morkBookAtom* bookAtom = map->GetAtom(ev, keyAtom);
+          if ( bookAtom )
+          {
+            outToken = bookAtom->mBookAtom_Id;
+            bookAtom->MakeCellUseForever(ev);
+          }
+        }
+      }
+    }
+    else // only a single byte in inTokenName string:
+      outToken = *s;
+  }
+  
+  return outToken;
+}
+
+mork_bool
+morkStore::HasTableKind(morkEnv* ev, mdb_scope inRowScope, 
+  mdb_kind inTableKind, mdb_count* outTableCount)
+{
+  mork_bool outBool = morkBool_kFalse;
+  
+  return outBool;
+}
+
+morkTable*
+morkStore::GetTableKind(morkEnv* ev, mdb_scope inRowScope, 
+  mdb_kind inTableKind, mdb_count* outTableCount,
+  mdb_bool* outMustBeUnique)
+{
+  morkTable* outTable = 0;
+  if ( ev->Good() )
+  {
+    morkRowSpace* rowSpace = this->LazyGetRowSpace(ev, inRowScope);
+    if ( rowSpace )
+    {
+      outTable = rowSpace->FindTableByKind(ev, inTableKind);
+      if ( outTable )
+      {
+        if ( outTableCount )
+          *outTableCount = outTable->GetRowCount();
+        if ( outMustBeUnique )
+          *outMustBeUnique = outTable->mTable_MustBeUnique;
+      }
+    }
+  }
+  return outTable;
+}
+
+morkRow*
+morkStore::GetRow(morkEnv* ev, const mdbOid* inOid)
+{
+  morkRow* outRow = 0;
+  if ( ev->Good() )
+  {
+    morkRowSpace* rowSpace = this->LazyGetRowSpace(ev, inOid->mOid_Scope);
+    if ( rowSpace )
+    {
+      outRow = rowSpace->mRowSpace_Rows.GetOid(ev, inOid);
+    }
+  }
+  return outRow;
+}
+
+morkTable*
+morkStore::GetTable(morkEnv* ev, const mdbOid* inOid)
+{
+  morkTable* outTable = 0;
+  if ( ev->Good() )
+  {
+    morkRowSpace* rowSpace = this->LazyGetRowSpace(ev, inOid->mOid_Scope);
+    if ( rowSpace )
+    {
+      outTable = rowSpace->FindTableByTid(ev, inOid->mOid_Id);
+    }
+  }
+  return outTable;
+}
+  
+morkTable*
+morkStore::NewTable(morkEnv* ev, mdb_scope inRowScope,
+  mdb_kind inTableKind, mdb_bool inMustBeUnique)
+{
+  morkTable* outTable = 0;
+  if ( ev->Good() )
+  {
+    morkRowSpace* rowSpace = this->LazyGetRowSpace(ev, inRowScope);
+    if ( rowSpace )
+      outTable = rowSpace->NewTable(ev, inTableKind, inMustBeUnique);
+  }
+  return outTable;
+}
+
+morkPortTableCursor*
+morkStore::GetPortTableCursor(morkEnv* ev, mdb_scope inRowScope,
+  mdb_kind inTableKind)
+{
+  morkPortTableCursor* outCursor = 0;
+  if ( ev->Good() )
+  {
+    nsIMdbHeap* heap = mPort_Heap;
+    outCursor = new(*heap, ev) 
+      morkPortTableCursor(ev, morkUsage::kHeap, heap, this,
+        inRowScope, inTableKind, heap);
+  }
+  return outCursor;
+}
+
+morkRow*
+morkStore::NewRowWithOid(morkEnv* ev, const mdbOid* inOid)
+{
+  morkRow* outRow = 0;
+  if ( ev->Good() )
+  {
+    morkRowSpace* rowSpace = this->LazyGetRowSpace(ev, inOid->mOid_Scope);
+    if ( rowSpace )
+      outRow = rowSpace->NewRowWithOid(ev, inOid);
+  }
+  return outRow;
+}
+
+morkRow*
+morkStore::NewRow(morkEnv* ev, mdb_scope inRowScope)
+{
+  morkRow* outRow = 0;
+  if ( ev->Good() )
+  {
+    morkRowSpace* rowSpace = this->LazyGetRowSpace(ev, inRowScope);
+    if ( rowSpace )
+      outRow = rowSpace->NewRow(ev);
+  }
+  return outRow;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkStore.h

@@ -0,0 +1,292 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKSTORE_
+#define _MORKSTORE_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+#ifndef _MORKNODEMAP_
+#include "morkNodeMap.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+#ifndef _MORKATOM_
+#include "morkAtom.h"
+#endif
+
+#ifndef _MORKROWSPACE_
+#include "morkRowSpace.h"
+#endif
+
+#ifndef _MORKATOMSPACE_
+#include "morkAtomSpace.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kPort  /*i*/ 0x7054 /* ascii 'pT' */
+
+/*| morkPort: 
+|*/
+class morkPort : public morkObject { // private mork port
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*     mNode_Heap;
+  // mork_able    mNode_Mutable; // can this node be modified?
+  // mork_load    mNode_Load;    // is this node clean or dirty?
+  // mork_base    mNode_Base;    // must equal morkBase_kNode
+  // mork_derived mNode_Derived; // depends on specific node subclass
+  // mork_access  mNode_Access;  // kOpen, kClosing, kShut, or kDead
+  // mork_usage   mNode_Usage;   // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_uses    mNode_Uses;    // refcount for strong refs
+  // mork_refs    mNode_Refs;    // refcount for strong refs + weak refs
+
+  // morkHandle*      mObject_Handle;   // weak ref to handle for this object
+
+public: // state is public because the entire Mork system is private
+  morkEnv*        mPort_Env;      // non-refcounted env which created port
+  morkFactory*    mPort_Factory;  // weak ref to suite factory
+  nsIMdbHeap*     mPort_Heap;     // heap in which this port allocs objects
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // ClosePort() only if open
+  virtual ~morkPort(); // assert that ClosePort() executed earlier
+  
+public: // morkPort construction & destruction
+  morkPort(morkEnv* ev, const morkUsage& inUsage,
+     nsIMdbHeap* ioNodeHeap, // the heap (if any) for this node instance
+     morkFactory* inFactory, // the factory for this
+     nsIMdbHeap* ioPortHeap  // the heap to hold all content in the port
+     );
+  void ClosePort(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkPort(const morkPort& other);
+  morkPort& operator=(const morkPort& other);
+
+public: // dynamic type identification
+  mork_bool IsPort() const
+  { return IsNode() && mNode_Derived == morkDerived_kPort; }
+// } ===== end morkNode methods =====
+
+public: // other port methods
+
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakPort(morkPort* me,
+    morkEnv* ev, morkPort** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongPort(morkPort* me,
+    morkEnv* ev, morkPort** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+#define morkDerived_kStore  /*i*/ 0x7354 /* ascii 'sT' */
+
+/*| kGroundColumnSpace: we use the 'column space' as the default scope
+**| for grounding column name IDs, and this is also the default scope for
+**| all other explicitly tokenized strings.
+|*/
+#define morkStore_kGroundColumnSpace 'c' /* for mStore_GroundColumnSpace*/
+#define morkStore_kGroundAtomSpace 'a' /* for mStore_GroundAtomSpace*/
+#define morkStore_kStreamBufSize (8 * 1024) /* okay buffer size */
+
+/*| morkStore: 
+|*/
+class morkStore : public morkPort {
+
+// public: // slots inherited from morkPort (meant to inform only)
+  // nsIMdbHeap*     mNode_Heap;
+  // mork_able    mNode_Mutable; // can this node be modified?
+  // mork_load    mNode_Load;    // is this node clean or dirty?
+  // mork_base    mNode_Base;    // must equal morkBase_kNode
+  // mork_derived mNode_Derived; // depends on specific node subclass
+  // mork_access  mNode_Access;  // kOpen, kClosing, kShut, or kDead
+  // mork_usage   mNode_Usage;   // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_uses    mNode_Uses;    // refcount for strong refs
+  // mork_refs    mNode_Refs;    // refcount for strong refs + weak refs
+ 
+  // morkEnv*        mPort_Env;      // non-refcounted env which created port
+  // morkFactory*    mPort_Factory;  // weak ref to suite factory
+  // nsIMdbHeap*     mPort_Heap;     // heap in which this port allocs objects
+
+public: // state is public because the entire Mork system is private
+
+// mStore_OidAtomSpace might be unnecessary; I don't remember why I wanted it.
+  morkAtomSpace*   mStore_OidAtomSpace;   // ground atom space for oids
+  morkAtomSpace*   mStore_GroundAtomSpace; // ground atom space for scopes
+  morkAtomSpace*   mStore_GroundColumnSpace; // ground column space for scopes
+
+  morkFile*        mStore_File; // the file containing Mork text
+  morkStream*      mStore_InStream; // stream using file used by the builder
+  morkBuilder*     mStore_Builder; // to parse Mork text and build structures 
+
+  morkStream*      mStore_OutStream; // stream using file used by the writer
+  
+  mork_column      mStore_CharsetToken; // token for "charset"
+  mork_column      mStore_AtomScopeToken; // token for "atomScope"
+  mork_column      mStore_RowScopeToken; // token for "rowScope"
+  mork_column      mStore_TableScopeToken; // token for "tableScope"
+  mork_column      mStore_ColumnScopeToken; // token for "columnScope"
+  mork_kind        mStore_TableKindToken; // token for "tableKind"
+
+  morkRowSpaceMap  mStore_RowSpaces;  // maps mork_scope -> morkSpace
+  morkAtomSpaceMap mStore_AtomSpaces; // maps mork_scope -> morkSpace
+  
+  morkPool         mStore_Pool;
+
+  // we alloc a max size book atom to reuse space for atom map key searches:
+  morkMaxBookAtom  mStore_BookAtom; // staging area for atom map searches
+
+public: // building an atom inside mStore_BookAtom from a char* string
+
+  morkMaxBookAtom* StageYarnAsBookAtom(morkEnv* ev,
+    const mdbYarn* inYarn, morkAtomSpace* ioSpace);
+
+  morkMaxBookAtom* StageStringAsBookAtom(morkEnv* ev,
+    const char* inString, mork_cscode inForm, morkAtomSpace* ioSpace);
+  // StageStringAsBookAtom() returns &mStore_BookAtom if inString is small
+  // enough, such that strlen(inString) < morkBookAtom_kMaxBodySize.  And
+  // content inside mStore_BookAtom will be the valid atom format for
+  // inString. This method is the standard way to stage a string as an
+  // atom for searching or adding new atoms into an atom space hash table.
+
+public: // lazy creation of members and nested row or atom spaces
+
+  morkAtomSpace*   LazyGetOidAtomSpace(morkEnv* ev);
+  morkAtomSpace*   LazyGetGroundAtomSpace(morkEnv* ev);
+  morkAtomSpace*   LazyGetGroundColumnSpace(morkEnv* ev);
+
+  morkStream*      LazyGetInStream(morkEnv* ev);
+  morkBuilder*     LazyGetBuilder(morkEnv* ev); 
+
+  morkStream*      LazyGetOutStream(morkEnv* ev);
+  
+  morkRowSpace*    LazyGetRowSpace(morkEnv* ev, mdb_scope inRowScope);
+  morkAtomSpace*   LazyGetAtomSpace(morkEnv* ev, mdb_scope inAtomScope);
+ 
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseStore() only if open
+  virtual ~morkStore(); // assert that CloseStore() executed earlier
+  
+public: // morkStore construction & destruction
+  morkStore(morkEnv* ev, const morkUsage& inUsage,
+     nsIMdbHeap* ioNodeHeap, // the heap (if any) for this node instance
+     morkFactory* inFactory, // the factory for this
+     nsIMdbHeap* ioPortHeap  // the heap to hold all content in the port
+     );
+  void CloseStore(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkStore(const morkStore& other);
+  morkStore& operator=(const morkStore& other);
+
+public: // dynamic type identification
+  mork_bool IsStore() const
+  { return IsNode() && mNode_Derived == morkDerived_kStore; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonStoreTypeError(morkEnv* ev);
+  static void NilStoreFileError(morkEnv* ev);
+
+public: //  store utilties
+  
+  morkAtom* YarnToAtom(morkEnv* ev, const mdbYarn* inYarn);
+
+public: // other store methods
+
+  void RenumberAllCollectableContent(morkEnv* ev);
+
+  nsIMdbStore* AcquireStoreHandle(morkEnv* ev); // mObject_Handle
+
+  morkPool* StorePool() { return &mStore_Pool; }
+
+  mork_bool OpenStoreFile(morkEnv* ev, // return value equals ev->Good()
+    mork_bool inFrozen,
+    const char* inFilePath,
+    const mdbOpenPolicy* inOpenPolicy);
+
+  mork_bool CreateStoreFile(morkEnv* ev, // return value equals ev->Good()
+    const char* inFilePath,
+    const mdbOpenPolicy* inOpenPolicy);
+    
+  // mork_bool CutBookAtom(morkEnv* ev, morkBookAtom* ioAtom);
+  mork_token StringToToken(morkEnv* ev, const char* inTokenName);
+  mork_token QueryToken(morkEnv* ev, const char* inTokenName);
+  void TokenToString(morkEnv* ev, mdb_token inToken, mdbYarn* outTokenName);
+  
+  mork_bool HasTableKind(morkEnv* ev, mdb_scope inRowScope, 
+    mdb_kind inTableKind, mdb_count* outTableCount);
+  
+  morkTable* GetTableKind(morkEnv* ev, mdb_scope inRowScope, 
+    mdb_kind inTableKind, mdb_count* outTableCount,
+    mdb_bool* outMustBeUnique);
+  
+  morkRow* GetRow(morkEnv* ev, const mdbOid* inOid);
+  morkTable* GetTable(morkEnv* ev, const mdbOid* inOid);
+    
+  morkTable* NewTable(morkEnv* ev, mdb_scope inRowScope,
+    mdb_kind inTableKind, mdb_bool inMustBeUnique);
+
+  morkPortTableCursor* GetPortTableCursor(morkEnv* ev, mdb_scope inRowScope,
+    mdb_kind inTableKind) ;
+
+  morkRow* NewRowWithOid(morkEnv* ev, const mdbOid* inOid);
+  morkRow* NewRow(morkEnv* ev, mdb_scope inRowScope);
+
+  morkThumb* MakeCompressCommitThumb(morkEnv* ev, mork_bool inDoCollect);
+
+public: // commit related methods
+
+  mork_bool MarkAllStoreContentDirty(morkEnv* ev);
+  // MarkAllStoreContentDirty() visits every object in the store and marks 
+  // them dirty, including every table, row, cell, and atom.  The return
+  // equals ev->Good(), to show whether any error happened.  This method is
+  // intended for use in the beginning of a "compress commit" which writes
+  // all store content, whether dirty or not.  We dirty everything first so
+  // that later iterations over content can mark things clean as they are
+  // written, and organize the process of serialization so that objects are
+  // written only at need (because of being dirty).
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakStore(morkStore* me,
+    morkEnv* ev, morkStore** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongStore(morkStore* me,
+    morkEnv* ev, morkStore** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKSTORE_ */

mozilla/db/mork/src/morkStream.cpp

@@ -0,0 +1,859 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKFILE_
+#include "morkFile.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKSTREAM_
+#include "morkStream.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkStream::CloseMorkNode(morkEnv* ev) // CloseStream() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseStream(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkStream::~morkStream() // assert CloseStream() executed earlier
+{
+  MORK_ASSERT(mStream_ContentFile==0);
+  MORK_ASSERT(mStream_Buf==0);
+}
+
+/*public non-poly*/
+morkStream::morkStream(morkEnv* ev, const morkUsage& inUsage,
+  nsIMdbHeap* ioHeap,
+  morkFile* ioContentFile, mork_size inBufSize, mork_bool inFrozen)
+: morkFile(ev, inUsage, ioHeap, ioHeap)
+, mStream_At( 0 )
+, mStream_ReadEnd( 0 )
+, mStream_WriteEnd( 0 )
+
+, mStream_ContentFile( 0 )
+
+, mStream_Buf( 0 )
+, mStream_BufSize( 0 )
+, mStream_BufPos( 0 )
+, mStream_Dirty( morkBool_kFalse )
+, mStream_HitEof( morkBool_kFalse )
+{
+  if ( ev->Good() )
+  {
+    if ( inBufSize < morkStream_kMinBufSize )
+      mStream_BufSize = inBufSize = morkStream_kMinBufSize;
+    else if ( inBufSize > morkStream_kMaxBufSize )
+      mStream_BufSize = inBufSize = morkStream_kMaxBufSize;
+    
+    if ( ioContentFile && ioHeap )
+    {
+      if ( ioContentFile->FileFrozen() ) // forced to be readonly?
+        inFrozen = morkBool_kTrue; // override the input value
+        
+      morkFile::SlotStrongFile(ioContentFile, ev, &mStream_ContentFile);
+      if ( ev->Good() )
+      {
+        mork_u1* buf = 0;
+        ioHeap->Alloc(ev->AsMdbEnv(), inBufSize, (void**) &buf);
+        if ( buf )
+        {
+          mStream_At = mStream_Buf = buf;
+          
+          if ( !inFrozen )
+          {
+            // physical buffer end never moves:
+            mStream_WriteEnd = buf + inBufSize;
+          }
+          else
+            mStream_WriteEnd = 0; // no writing is allowed
+          
+          if ( inFrozen )
+          {
+            // logical buffer end starts at Buf with no content:
+            mStream_ReadEnd = buf;
+            this->SetFileFrozen(inFrozen);
+          }
+          else
+            mStream_ReadEnd = 0; // no reading is allowed
+          
+          this->SetFileActive(morkBool_kTrue);
+          this->SetFileIoOpen(morkBool_kTrue);
+        }
+        if ( ev->Good() )
+          mNode_Derived = morkDerived_kStream;
+      }
+    }
+    else ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkStream::CloseStream(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      morkFile::SlotStrongFile((morkFile*) 0, ev, &mStream_ContentFile);
+      nsIMdbHeap* heap = mFile_SlotHeap;
+      mork_u1* buf = mStream_Buf;
+      mStream_Buf = 0;
+      
+      if ( heap && buf )
+        heap->Free(ev->AsMdbEnv(), buf);
+
+      this->CloseFile(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+  
+#define morkStream_kSpacesPerIndent 1 /* one space per indent */
+#define morkStream_kMaxIndentDepth 70 /* max indent of 70 space bytes */
+static const char* morkStream_kSpaces // next line to ease length perception
+= "                                                                        ";
+// 123456789_123456789_123456789_123456789_123456789_123456789_123456789_
+// morkStream_kSpaces above must contain (at least) 70 spaces (ASCII 0x20)
+ 
+mork_size
+morkStream::PutIndent(morkEnv* ev, mork_count inDepth)
+  // PutIndent() puts a linebreak, and then
+  // "indents" by inDepth, and returns the line length after indentation.
+{
+  mork_size outLength = 0;
+
+  if ( ev->Good() )
+  {
+    this->PutLineBreak(ev);
+    if ( ev->Good() )
+    {
+      outLength = inDepth;
+      if ( inDepth )
+        this->Write(ev, morkStream_kSpaces, inDepth);
+    }
+  }
+  return outLength;
+}
+
+mork_size
+morkStream::PutByteThenIndent(morkEnv* ev, int inByte, mork_count inDepth)
+  // PutByteThenIndent() puts the byte, then a linebreak, and then
+  // "indents" by inDepth, and returns the line length after indentation.
+{
+  mork_size outLength = 0;
+  
+  if ( inDepth > morkStream_kMaxIndentDepth )
+    inDepth = morkStream_kMaxIndentDepth;
+  
+  this->Putc(ev, inByte);
+  if ( ev->Good() )
+  {
+    this->PutLineBreak(ev);
+    if ( ev->Good() )
+    {
+      outLength = inDepth;
+      if ( inDepth )
+        this->Write(ev, morkStream_kSpaces, inDepth);
+    }
+  }
+  return outLength;
+}
+  
+mork_size
+morkStream::PutStringThenIndent(morkEnv* ev,
+  const char* inString, mork_count inDepth)
+// PutStringThenIndent() puts the string, then a linebreak, and then
+// "indents" by inDepth, and returns the line length after indentation.
+{
+  mork_size outLength = 0;
+  
+  if ( inDepth > morkStream_kMaxIndentDepth )
+    inDepth = morkStream_kMaxIndentDepth;
+  
+  if ( inString )
+  {
+    mork_size length = MORK_STRLEN(inString);
+    if ( length && ev->Good() ) // any bytes to write?
+      this->Write(ev, inString, length);
+  }
+  
+  if ( ev->Good() )
+  {
+    this->PutLineBreak(ev);
+    if ( ev->Good() )
+    {
+      outLength = inDepth;
+      if ( inDepth )
+        this->Write(ev, morkStream_kSpaces, inDepth);
+    }
+  }
+  return outLength;
+}
+
+mork_size
+morkStream::PutString(morkEnv* ev, const char* inString)
+{
+  mork_size outSize = 0;
+  if ( inString )
+  {
+    outSize = MORK_STRLEN(inString);
+    if ( outSize && ev->Good() ) // any bytes to write?
+    {
+      this->Write(ev, inString, outSize);
+    }
+  }
+  return outSize;
+}
+
+mork_size
+morkStream::PutStringThenNewline(morkEnv* ev, const char* inString)
+  // PutStringThenNewline() returns total number of bytes written.
+{
+  mork_size outSize = 0;
+  if ( inString )
+  {
+    outSize = MORK_STRLEN(inString);
+    if ( outSize && ev->Good() ) // any bytes to write?
+    {
+      this->Write(ev, inString, outSize);
+      if ( ev->Good() )
+        outSize += this->PutLineBreak(ev);
+    }
+  }
+  return outSize;
+}
+
+mork_size
+morkStream::PutStringThenNewlineThenSpace(morkEnv* ev, const char* inString)
+  // PutStringThenNewlineThenSpace() returns total number of bytes written.
+{
+  mork_size outSize = 0;
+  if ( inString )
+  {
+    outSize = MORK_STRLEN(inString);
+    if ( outSize && ev->Good() ) // any bytes to write?
+    {
+      this->Write(ev, inString, outSize);
+      if ( ev->Good() )
+      {
+        outSize += this->PutLineBreak(ev);
+        if ( ev->Good() )
+        {
+          this->Putc(ev, ' ');
+          ++outSize;
+        }
+      }
+    }
+  }
+  return outSize;
+}
+
+mork_size
+morkStream::PutByteThenNewline(morkEnv* ev, int inByte)
+  // PutByteThenNewline() returns total number of bytes written.
+{
+  mork_size outSize = 1; // one for the following byte
+  this->Putc(ev, inByte);
+  if ( ev->Good() )
+    outSize += this->PutLineBreak(ev);
+  return outSize;
+}
+
+mork_size
+morkStream::PutByteThenNewlineThenSpace(morkEnv* ev, int inByte)
+  // PutByteThenNewlineThenSpace() returns total number of bytes written.
+{
+  mork_size outSize = 1; // one for the following byte
+  this->Putc(ev, inByte);
+  if ( ev->Good() )
+  {
+    outSize += this->PutLineBreak(ev);
+    if ( ev->Good() )
+    {
+      this->Putc(ev, ' ');
+      ++outSize;
+    }
+  }
+  return outSize;
+}
+
+mork_size
+morkStream::PutLineBreak(morkEnv* ev)
+{
+#ifdef MORK_MAC
+
+  this->Putc(ev, mork_kCR);
+  return 1;
+  
+#else
+#  if defined(MORK_WIN) || defined(MORK_OS2)
+  
+  this->Putc(ev, mork_kCR);
+  this->Putc(ev, mork_kLF);
+  return 2;
+  
+#  else
+#    ifdef MORK_UNIX
+  
+  this->Putc(ev, mork_kLF);
+  return 1;
+  
+#    endif /* MORK_UNIX */
+#  endif /* MORK_WIN */
+#endif /* MORK_MAC */
+}
+// ````` ````` ````` `````   ````` ````` ````` `````  
+// public: // virtual morkFile methods
+
+
+/*public virtual*/ void
+morkStream::BecomeTrunk(morkEnv* ev)
+  // If this file is a file version branch created by calling AcquireBud(),
+  // BecomeTrunk() causes this file's content to replace the original
+  // file's content, typically by assuming the original file's identity.
+{
+  ev->StubMethodOnlyError();
+}
+
+/*public virtual*/ morkFile*
+morkStream::AcquireBud(morkEnv* ev, nsIMdbHeap* ioHeap)
+  // AcquireBud() starts a new "branch" version of the file, empty of content,
+  // so that a new version of the file can be written.  This new file
+  // can later be told to BecomeTrunk() the original file, so the branch
+  // created by budding the file will replace the original file.  Some
+  // file subclasses might initially take the unsafe but expedient
+  // approach of simply truncating this file down to zero length, and
+  // then returning the same morkFile pointer as this, with an extra
+  // reference count increment.  Note that the caller of AcquireBud() is
+  // expected to eventually call CutStrongRef() on the returned file
+  // in order to release the strong reference.  High quality versions
+  // of morkFile subclasses will create entirely new files which later
+  // are renamed to become the old file, so that better transactional
+  // behavior is exhibited by the file, so crashes protect old files.
+  // Note that AcquireBud() is an illegal operation on readonly files.
+{
+  morkFile* outFile = 0;
+  morkFile* file = mStream_ContentFile;
+  if ( this->IsOpenAndActiveFile() && file )
+  {
+    // figure out how this interacts with buffering and mStream_WriteEnd:
+    ev->StubMethodOnlyError();
+  }
+  else this->NewFileDownError(ev);
+  
+  return outFile;
+}
+
+/*public virtual*/ mork_pos
+morkStream::Length(morkEnv* ev) const // eof
+{
+  mork_pos outPos = 0;
+  
+  morkFile* file = mStream_ContentFile;
+  if ( this->IsOpenAndActiveFile() && file )
+  {
+    mork_pos contentEof = file->Length(ev);
+    
+    if ( mStream_WriteEnd ) // this stream supports writing?
+    {
+      // the local buffer might have buffered content past content eof
+      if ( ev->Good() ) // no error happened during Length() above?
+      {
+        mork_u1* at = mStream_At;
+        mork_u1* buf = mStream_Buf;
+        if ( at >= buf ) // expected cursor order?
+        {
+          mork_pos localContent = mStream_BufPos + (at - buf);
+          if ( localContent > contentEof ) // buffered past eof?
+            contentEof = localContent; // return new logical eof
+
+          outPos = contentEof;
+        }
+        else this->NewBadCursorOrderError(ev);
+      }
+    }
+    else
+      outPos = contentEof; // frozen files get length from content file
+  }
+  else this->NewFileDownError(ev);
+
+  return outPos;
+}
+
+void morkStream::NewBadCursorSlotsError(morkEnv* ev) const
+{ ev->NewError("bad stream cursor slots"); }
+
+void morkStream::NewNullStreamBufferError(morkEnv* ev) const
+{ ev->NewError("null stream buffer"); }
+
+void morkStream::NewCantReadSinkError(morkEnv* ev) const
+{ ev->NewError("cant read stream sink"); }
+
+void morkStream::NewCantWriteSourceError(morkEnv* ev) const
+{ ev->NewError("cant write stream source"); }
+
+void morkStream::NewPosBeyondEofError(morkEnv* ev) const
+{ ev->NewError("stream pos beyond eof"); }
+
+void morkStream::NewBadCursorOrderError(morkEnv* ev) const
+{ ev->NewError("bad stream cursor order"); }
+
+/*public virtual*/ mork_pos   
+morkStream::Tell(morkEnv* ev) const
+{
+  mork_pos outPos = 0;
+  
+  morkFile* file = mStream_ContentFile;
+  if ( this->IsOpenAndActiveFile() && file )
+  {
+    mork_u1* buf = mStream_Buf;
+    mork_u1* at = mStream_At;
+    
+    mork_u1* readEnd = mStream_ReadEnd;   // nonzero only if readonly
+    mork_u1* writeEnd = mStream_WriteEnd; // nonzero only if writeonly
+    
+    if ( writeEnd )
+    {
+      if ( buf && at >= buf && at <= writeEnd ) 
+      {
+        outPos = mStream_BufPos + (at - buf);
+      }
+      else this->NewBadCursorOrderError(ev);
+    }
+    else if ( readEnd )
+    {
+      if ( buf && at >= buf && at <= readEnd ) 
+      {
+        outPos = mStream_BufPos + (at - buf);
+      }
+      else this->NewBadCursorOrderError(ev);
+    }
+  }
+  else this->NewFileDownError(ev);
+
+  return outPos;
+}
+
+/*public virtual*/ mork_size  
+morkStream::Read(morkEnv* ev, void* outBuf, mork_size inSize)
+{
+  // First we satisfy the request from buffered bytes, if any.  Then
+  // if additional bytes are needed, we satisfy these by direct reads
+  // from the content file without any local buffering (but we still need
+  // to adjust the buffer position to reflect the current i/o point).
+
+  mork_pos outActual = 0;
+
+  morkFile* file = mStream_ContentFile;
+  if ( this->IsOpenAndActiveFile() && file )
+  {
+    mork_u1* end = mStream_ReadEnd; // byte after last buffered byte
+    if ( end ) // file is open for read access?
+    {
+      if ( inSize ) // caller wants any output?
+      {
+        mork_u1* sink = (mork_u1*) outBuf; // where we plan to write bytes
+        if ( sink ) // caller passed good buffer address?
+        {
+          mork_u1* at = mStream_At;
+          mork_u1* buf = mStream_Buf;
+          if ( at >= buf && at <= end ) // expected cursor order?
+          {
+            mork_num remaining = end - at; // bytes left in buffer
+            
+            mork_num quantum = inSize; // number of bytes to copy
+            if ( quantum > remaining ) // more than buffer content?
+              quantum = remaining; // restrict to buffered bytes
+              
+            if ( quantum ) // any bytes left in the buffer?
+            {
+              MORK_MEMCPY(sink, at, quantum); // from buffer bytes
+              
+              at += quantum; // advance past read bytes
+              mStream_At = at;
+              outActual += quantum;  // this much copied so far
+
+              sink += quantum;   // in case we need to copy more
+              inSize -= quantum; // filled this much of request
+              mStream_HitEof = morkBool_kFalse;
+            }
+            
+            if ( inSize ) // we still need to read more content?
+            {
+              // We need to read more bytes directly from the
+              // content file, without local buffering.  We have
+              // exhausted the local buffer, so we need to show
+              // it is now empty, and adjust the current buf pos.
+              
+              mork_num posDelta = (at - buf); // old buf content
+              mStream_BufPos += posDelta;   // past now empty buf
+              
+              mStream_At = mStream_ReadEnd = buf; // empty buffer
+              
+              file->Seek(ev, mStream_BufPos); // set file pos
+              if ( ev->Good() ) // no seek error?
+              {
+                mork_num actual = file->Read(ev, sink, inSize);
+                if ( ev->Good() ) // no read error?
+                {
+                  if ( actual )
+                  {
+                    outActual += actual;
+                    mStream_BufPos += actual;
+                    mStream_HitEof = morkBool_kFalse;
+                  }
+                  else if ( !outActual )
+                    mStream_HitEof = morkBool_kTrue;
+                }
+              }
+            }
+          }
+          else this->NewBadCursorOrderError(ev);
+        }
+        else this->NewNullStreamBufferError(ev);
+      }
+    }
+    else this->NewCantReadSinkError(ev);
+  }
+  else this->NewFileDownError(ev);
+  
+  if ( ev->Bad() )
+    outActual = 0;
+
+  return outActual;
+}
+
+/*public virtual*/ mork_pos   
+morkStream::Seek(morkEnv* ev, mork_pos inPos)
+{
+  mork_pos outPos = 0;
+
+  morkFile* file = mStream_ContentFile;
+  if ( this->IsOpenOrClosingNode() && this->FileActive() && file )
+  {
+    mork_u1* at = mStream_At;             // current position in buffer
+    mork_u1* buf = mStream_Buf;           // beginning of buffer 
+    mork_u1* readEnd = mStream_ReadEnd;   // nonzero only if readonly
+    mork_u1* writeEnd = mStream_WriteEnd; // nonzero only if writeonly
+    
+    if ( writeEnd ) // file is mutable/writeonly?
+    {
+      if ( mStream_Dirty ) // need to commit buffer changes?
+        this->Flush(ev);
+
+      if ( ev->Good() ) // no errors during flush or earlier?
+      {
+        if ( at == buf ) // expected post flush cursor value?
+        {
+          if ( mStream_BufPos != inPos ) // need to change pos?
+          {
+            mork_pos eof = file->Length(ev);
+            if ( ev->Good() ) // no errors getting length?
+            {
+              if ( inPos <= eof ) // acceptable new position?
+              {
+                mStream_BufPos = inPos; // new stream position
+                outPos = inPos;
+              }
+              else this->NewPosBeyondEofError(ev);
+            }
+          }
+        }
+        else this->NewBadCursorOrderError(ev);
+      }
+    }
+    else if ( readEnd ) // file is frozen/readonly?
+    {
+      if ( at >= buf && at <= readEnd ) // expected cursor order?
+      {
+        mork_pos eof = file->Length(ev);
+        if ( ev->Good() ) // no errors getting length?
+        {
+          if ( inPos <= eof ) // acceptable new position?
+          {
+            outPos = inPos;
+            mStream_BufPos = inPos; // new stream position
+            mStream_At = mStream_ReadEnd = buf; // empty buffer
+            if ( inPos == eof ) // notice eof reached?
+              mStream_HitEof = morkBool_kTrue;
+          }
+          else this->NewPosBeyondEofError(ev);
+        }
+      }
+      else this->NewBadCursorOrderError(ev);
+    }
+      
+  }
+  else this->NewFileDownError(ev);
+
+  return outPos;
+}
+
+/*public virtual*/ mork_size  
+morkStream::Write(morkEnv* ev, const void* inBuf, mork_size inSize)
+{
+  mork_num outActual = 0;
+
+  morkFile* file = mStream_ContentFile;
+  if ( this->IsOpenActiveAndMutableFile() && file )
+  {
+    mork_u1* end = mStream_WriteEnd; // byte after last buffered byte
+    if ( end ) // file is open for write access?
+    {
+      if ( inSize ) // caller provided any input?
+      {
+        const mork_u1* source = (const mork_u1*) inBuf; // from where
+        if ( source ) // caller passed good buffer address?
+        {
+          mork_u1* at = mStream_At;
+          mork_u1* buf = mStream_Buf;
+          if ( at >= buf && at <= end ) // expected cursor order?
+          {
+            mork_num space = end - at; // space left in buffer
+            
+            mork_num quantum = inSize; // number of bytes to write
+            if ( quantum > space ) // more than buffer size?
+              quantum = space; // restrict to avail space
+              
+            if ( quantum ) // any space left in the buffer?
+            {
+              mStream_Dirty = morkBool_kTrue; // to ensure later flush
+              MORK_MEMCPY(at, source, quantum); // into buffer
+              
+              mStream_At += quantum; // advance past written bytes
+              outActual += quantum;  // this much written so far
+
+              source += quantum; // in case we need to write more
+              inSize -= quantum; // filled this much of request
+            }
+            
+            if ( inSize ) // we still need to write more content?
+            {
+              // We need to write more bytes directly to the
+              // content file, without local buffering.  We have
+              // exhausted the local buffer, so we need to flush
+              // it and empty it, and adjust the current buf pos.
+              // After flushing, if the rest of the write fits
+              // inside the buffer, we will put bytes into the
+              // buffer rather than write them to content file.
+              
+              if ( mStream_Dirty )
+                this->Flush(ev); // will update mStream_BufPos
+
+              at = mStream_At;
+              if ( at < buf || at > end ) // bad cursor?
+                this->NewBadCursorOrderError(ev);
+                
+              if ( ev->Good() ) // no errors?
+              {
+                space = end - at; // space left in buffer
+                if ( space > inSize ) // write to buffer?
+                {
+                  mStream_Dirty = morkBool_kTrue; // ensure flush
+                  MORK_MEMCPY(at, source, inSize); // copy
+                  
+                  mStream_At += inSize; // past written bytes
+                  outActual += inSize;  // this much written
+                }
+                else // directly to content file instead
+                {
+                  file->Seek(ev, mStream_BufPos); // set pos
+                    
+                  if ( ev->Good() ) // no seek error?
+                  {
+                    mork_num actual =
+                      file->Write(ev, source, inSize);
+                    if ( ev->Good() ) // no write error?
+                    {
+                      outActual += actual;
+                      mStream_BufPos += actual;
+                    }
+                  }
+                }
+              }
+            }
+          }
+          else this->NewBadCursorOrderError(ev);
+        }
+        else this->NewNullStreamBufferError(ev);
+      }
+    }
+    else this->NewCantWriteSourceError(ev);
+  }
+  else this->NewFileDownError(ev);
+  
+  if ( ev->Bad() )
+    outActual = 0;
+
+  return outActual;
+}
+
+/*public virtual*/ void       
+morkStream::Flush(morkEnv* ev)
+{
+  morkFile* file = mStream_ContentFile;
+  if ( this->IsOpenOrClosingNode() && this->FileActive() && file )
+  {
+    if ( mStream_Dirty )
+      this->spill_buf(ev);
+    file->Flush(ev);
+  }
+  else this->NewFileDownError(ev);
+}
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+// protected: // protected non-poly morkStream methods (for char io)
+
+int
+morkStream::fill_getc(morkEnv* ev)
+{
+  int c = EOF;
+  
+  morkFile* file = mStream_ContentFile;
+  if ( this->IsOpenAndActiveFile() && file )
+  {
+    mork_u1* buf = mStream_Buf;
+    mork_u1* end = mStream_ReadEnd; // beyond buf after earlier read
+    if ( end > buf ) // any earlier read bytes buffered?
+    {
+      mStream_BufPos += ( end - buf ); // advance past old read
+    }
+      
+    if ( ev->Good() ) // no errors yet?
+    {
+      file->Seek(ev, mStream_BufPos); // set file pos
+      if ( ev->Good() ) // no seek error?
+      {
+        mork_num actual = file->Read(ev, buf, mStream_BufSize);
+        if ( ev->Good() ) // no read errors?
+        {
+          if ( actual > mStream_BufSize ) // more than asked for??
+            actual = mStream_BufSize;
+          
+          mStream_At = buf;
+          mStream_ReadEnd = buf + actual;
+          if ( actual ) // any bytes actually read?
+          {
+            c = *mStream_At++; // return first byte from buffer
+            mStream_HitEof = morkBool_kFalse;
+          }
+          else
+            mStream_HitEof = morkBool_kTrue;
+        }
+      }
+    }
+  }
+  else this->NewFileDownError(ev);
+  
+  return c;
+}
+
+void
+morkStream::spill_putc(morkEnv* ev, int c)
+{
+  this->spill_buf(ev);
+  if ( ev->Good() && mStream_At < mStream_WriteEnd )
+    this->Putc(ev, c);
+}
+
+void
+morkStream::spill_buf(morkEnv* ev) // spill/flush from buffer to file
+{
+  morkFile* file = mStream_ContentFile;
+  if ( this->IsOpenOrClosingNode() && this->FileActive() && file )
+  {
+    mork_u1* buf = mStream_Buf;
+    if ( mStream_Dirty )
+    {
+      mork_u1* at = mStream_At;
+      if ( at >= buf && at <= mStream_WriteEnd ) // order?
+      {
+        mork_num count = at - buf; // the number of bytes buffered
+        if ( count ) // anything to write to the string?
+        {
+          if ( count > mStream_BufSize ) // no more than max?
+          {
+            count = mStream_BufSize;
+            mStream_WriteEnd = buf + mStream_BufSize;
+            this->NewBadCursorSlotsError(ev);
+          }
+          if ( ev->Good() )
+          {
+            file->Seek(ev, mStream_BufPos);
+            if ( ev->Good() )
+            {
+              file->Write(ev, buf, count);
+              if ( ev->Good() )
+              {
+                mStream_BufPos += count; // past bytes written
+                mStream_At = buf; // reset buffer cursor
+                mStream_Dirty = morkBool_kFalse;
+              }
+            }
+          }
+        }
+      }
+      else this->NewBadCursorOrderError(ev);
+    }
+    else
+    {
+#ifdef MORK_DEBUG
+      ev->NewWarning("stream:spill:not:dirty");
+#endif /*MORK_DEBUG*/
+    }
+  }
+  else this->NewFileDownError(ev);
+
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkStream.h

@@ -0,0 +1,242 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKSTREAM_
+#define _MORKSTREAM_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKFILE_
+#include "morkFile.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/*=============================================================================
+ * morkStream: buffered file i/o
+ */
+
+/*| morkStream exists to define an morkFile subclass that provides buffered
+**| i/o for an underlying content file.  Naturally this arrangement only makes
+**| sense when the underlying content file is itself not efficiently buffered
+**| (especially for character by character i/o).
+**|
+**|| morkStream is intended for either reading use or writing use, but not
+**| both simultaneously or interleaved.  Pick one when the stream is created
+**| and don't change your mind.  This restriction is intended to avoid obscure
+**| and complex bugs that might arise from interleaved reads and writes -- so
+**| just don't do it.  A stream is either a sink or a source, but not both.
+**|
+**|| (When the underlying content file is intended to support both reading and
+**| writing, a developer might use two instances of morkStream where one is for
+**| reading and the other is for writing.  In this case, a developer must take
+**| care to keep the two streams in sync because each will maintain a separate
+**| buffer representing a cache consistency problem for the other.  A simple
+**| approach is to invalidate the buffer of one when one uses the other, with
+**| the assumption that closely mixed reading and writing is not expected, so
+**| that little cost is associated with changing read/write streaming modes.)
+**|
+**|| Exactly one of mStream_ReadEnd or mStream_WriteEnd must be a null pointer,
+**| and this will cause the right thing to occur when inlines use them, because
+**| mStream_At < mStream_WriteEnd (for example) will always be false and the
+**| else branch of the statement calls a function that raises an appropriate
+**| error to complain about either reading a sink or writing a source.
+**|
+**|| morkStream is a direct clone of ab_Stream from Communicator 4.5's
+**| address book code, which in turn was based on the stream class in the
+**| public domain Mithril programming language.
+|*/
+
+#define morkStream_kPrintBufSize /*i*/ 512 /* buffer size used by printf() */ 
+
+#define morkStream_kMinBufSize /*i*/ 512 /* buffer no fewer bytes */ 
+#define morkStream_kMaxBufSize /*i*/ (32 * 1024) /* buffer no more bytes */ 
+
+#define morkDerived_kStream     /*i*/ 0x7A74 /* ascii 'zt' */
+
+class morkStream /*d*/ : public morkFile { /* from Mithril's AgStream class */
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+protected: // protected morkStream members
+  mork_u1*    mStream_At;       // pointer into mStream_Buf
+  mork_u1*    mStream_ReadEnd;  // null or one byte past last readable byte
+  mork_u1*    mStream_WriteEnd; // null or mStream_Buf + mStream_BufSize
+
+  morkFile*   mStream_ContentFile;  // where content is read and written
+
+  mork_u1*    mStream_Buf;      // dynamically allocated memory to buffer io
+  mork_size   mStream_BufSize;  // requested buf size (fixed by min and max)
+  mork_pos    mStream_BufPos;   // logical position of byte at mStream_Buf
+  mork_bool   mStream_Dirty;    // does the buffer need to be flushed?
+  mork_bool   mStream_HitEof;   // has eof been reached? (only frozen streams)
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseStream() only if open
+  virtual ~morkStream(); // assert that CloseStream() executed earlier
+  
+public: // morkStream construction & destruction
+  morkStream(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+      morkFile* ioContentFile, mork_size inBufSize, mork_bool inFrozen);
+  void CloseStream(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkStream(const morkStream& other);
+  morkStream& operator=(const morkStream& other);
+
+public: // dynamic type identification
+  mork_bool IsStream() const
+  { return IsNode() && mNode_Derived == morkDerived_kStream; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  void NonStreamTypeError(morkEnv* ev);
+
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // virtual morkFile methods
+
+  virtual void BecomeTrunk(morkEnv* ev);
+  // If this file is a file version branch created by calling AcquireBud(),
+  // BecomeTrunk() causes this file's content to replace the original
+  // file's content, typically by assuming the original file's identity.
+
+  virtual morkFile*  AcquireBud(morkEnv* ev, nsIMdbHeap* ioHeap);
+  // AcquireBud() starts a new "branch" version of the file, empty of content,
+  // so that a new version of the file can be written.  This new file
+  // can later be told to BecomeTrunk() the original file, so the branch
+  // created by budding the file will replace the original file.  Some
+  // file subclasses might initially take the unsafe but expedient
+  // approach of simply truncating this file down to zero length, and
+  // then returning the same morkFile pointer as this, with an extra
+  // reference count increment.  Note that the caller of AcquireBud() is
+  // expected to eventually call CutStrongRef() on the returned file
+  // in order to release the strong reference.  High quality versions
+  // of morkFile subclasses will create entirely new files which later
+  // are renamed to become the old file, so that better transactional
+  // behavior is exhibited by the file, so crashes protect old files.
+  // Note that AcquireBud() is an illegal operation on readonly files.
+  
+  virtual mork_pos   Length(morkEnv* ev) const; // eof
+  virtual mork_pos   Tell(morkEnv* ev) const;
+  virtual mork_size  Read(morkEnv* ev, void* outBuf, mork_size inSize);
+  virtual mork_pos   Seek(morkEnv* ev, mork_pos inPos);
+  virtual mork_size  Write(morkEnv* ev, const void* inBuf, mork_size inSize);
+  virtual void       Flush(morkEnv* ev);
+    
+// ````` ````` ````` `````   ````` ````` ````` `````  
+protected: // protected non-poly morkStream methods (for char io)
+
+  int     fill_getc(morkEnv* ev);
+  void    spill_putc(morkEnv* ev, int c);
+  void    spill_buf(morkEnv* ev); // spill/flush from buffer to file
+      
+// ````` ````` ````` `````   ````` ````` ````` `````  
+public: // public non-poly morkStream methods
+    
+  void NewBadCursorSlotsError(morkEnv* ev) const;
+  void NewBadCursorOrderError(morkEnv* ev) const;
+  void NewNullStreamBufferError(morkEnv* ev) const;
+  void NewCantReadSinkError(morkEnv* ev) const;
+  void NewCantWriteSourceError(morkEnv* ev) const;
+  void NewPosBeyondEofError(morkEnv* ev) const;
+      
+  morkFile*  GetStreamContentFile() const { return mStream_ContentFile; }
+  mork_size   GetStreamBufferSize() const { return mStream_BufSize; }
+  
+  mork_size  PutIndent(morkEnv* ev, mork_count inDepth);
+  // PutIndent() puts a linebreak, and then
+  // "indents" by inDepth, and returns the line length after indentation.
+  
+  mork_size  PutByteThenIndent(morkEnv* ev, int inByte, mork_count inDepth);
+  // PutByteThenIndent() puts the byte, then a linebreak, and then
+  // "indents" by inDepth, and returns the line length after indentation.
+  
+  mork_size  PutStringThenIndent(morkEnv* ev,
+    const char* inString, mork_count inDepth);
+  // PutStringThenIndent() puts the string, then a linebreak, and then
+  // "indents" by inDepth, and returns the line length after indentation.
+  
+  mork_size  PutString(morkEnv* ev, const char* inString);
+  // PutString() returns the length of the string written.
+  
+  mork_size  PutStringThenNewline(morkEnv* ev, const char* inString);
+  // PutStringThenNewline() returns total number of bytes written.
+
+  mork_size  PutStringThenNewlineThenSpace(morkEnv* ev, const char* inString);
+  // PutStringThenNewlineThenSpace() returns total number of bytes written.
+
+  mork_size  PutByteThenNewline(morkEnv* ev, int inByte);
+  // PutByteThenNewline() returns total number of bytes written.
+
+  mork_size  PutByteThenNewlineThenSpace(morkEnv* ev, int inByte);
+  // PutByteThenNewlineThenSpace() returns total number of bytes written.
+  
+  // ````` ````` stdio type methods ````` ````` 
+  void    Printf(morkEnv* ev, const char* inFormat, ...);
+  
+  mork_pos  Ftell(morkEnv* ev) /*i*/ { return this->Tell(ev); }
+  
+  void    Fsetpos(morkEnv* ev, mork_pos inPos) /*i*/ { this->Seek(ev, inPos); }
+  
+  void    Rewind(morkEnv* ev) /*i*/ { this->Fsetpos(ev, 0); }
+  
+  void    Fflush(morkEnv* ev) /*i*/ { this->Flush(ev); }
+  
+  mork_bool Feof() /*i*/ { return mStream_HitEof; }
+    // Feof() is never true for writable stream output sinks 
+  
+  void    Puts(morkEnv* ev, const char* inString) /*i*/
+  { this->PutString(ev, inString); }
+
+  void    Ungetc(int c) /*i*/
+  { if ( mStream_At > mStream_Buf && c > 0 ) *--mStream_At = c; }
+  
+  int     Getc(morkEnv* ev) /*i*/
+  { return ( mStream_At < mStream_ReadEnd )? *mStream_At++ : fill_getc(ev); }
+  
+  void    Putc(morkEnv* ev, int c) /*i*/
+  { 
+    mStream_Dirty = morkBool_kTrue;
+    if ( mStream_At < mStream_WriteEnd )
+      *mStream_At++ = c;
+    else
+      spill_putc(ev, c);
+  }
+
+  mork_size PutLineBreak(morkEnv* ev);
+  
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakStream(morkStream* me,
+    morkEnv* ev, morkStream** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongStream(morkStream* me,
+    morkEnv* ev, morkStream** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKSTREAM_ */

mozilla/db/mork/src/morkTable.cpp

@@ -0,0 +1,318 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKTABLE_
+#include "morkTable.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+#ifndef _MORKROWSPACE_
+#include "morkRowSpace.h"
+#endif
+
+#ifndef _MORKARRAY_
+#include "morkArray.h"
+#endif
+
+#ifndef _MORKROW_
+#include "morkRow.h"
+#endif
+
+#ifndef _ORKINTABLE_
+#include "orkinTable.h"
+#endif
+
+#ifndef _MORKTABLEROWCURSOR_
+#include "morkTableRowCursor.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkTable::CloseMorkNode(morkEnv* ev) /*i*/ // CloseTable() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseTable(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkTable::~morkTable() /*i*/ // assert CloseTable() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+  MORK_ASSERT(mTable_Store==0);
+  MORK_ASSERT(mTable_RowSpace==0);
+}
+
+/*public non-poly*/
+morkTable::morkTable(morkEnv* ev, /*i*/
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap, 
+  morkStore* ioStore, nsIMdbHeap* ioSlotHeap, morkRowSpace* ioRowSpace,
+  mork_tid inTid, mork_kind inKind, mork_bool inMustBeUnique)
+: morkObject(ev, inUsage, ioHeap, (morkHandle*) 0)
+, mTable_Store( 0 )
+, mTable_RowSpace( 0 )
+, mTable_Id( inTid )
+, mTable_RowMap(ev, morkUsage::kMember, (nsIMdbHeap*) 0, ioSlotHeap,
+  morkTable_kStartRowMapSlotCount)
+, mTable_RowArray(ev, morkUsage::kMember, (nsIMdbHeap*) 0,
+  morkTable_kStartRowArraySize, ioSlotHeap)
+, mTable_Kind( inKind )
+, mTable_MustBeUnique( inMustBeUnique )
+{
+  if ( ev->Good() )
+  {
+    if ( ioStore && ioSlotHeap && ioRowSpace )
+    {
+      if ( inKind )
+      {
+        morkStore::SlotWeakStore(ioStore, ev, &mTable_Store);
+        morkRowSpace::SlotWeakRowSpace(ioRowSpace, ev, &mTable_RowSpace);
+        if ( ev->Good() )
+          mNode_Derived = morkDerived_kTable;
+      }
+      else
+        ioRowSpace->ZeroKindError(ev);
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkTable::CloseTable(morkEnv* ev) /*i*/ // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mTable_RowMap.CloseMorkNode(ev);
+      mTable_RowArray.CloseMorkNode(ev);
+      morkStore::SlotWeakStore((morkStore*) 0, ev, &mTable_Store);
+      morkRowSpace::SlotStrongRowSpace((morkRowSpace*) 0,
+         ev, &mTable_RowSpace);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void
+morkTable::NonTableTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkTable");
+}
+
+/*static*/ void
+morkTable::NonTableTypeWarning(morkEnv* ev)
+{
+  ev->NewWarning("non morkTable");
+}
+
+/*static*/ void
+morkTable::NilRowSpaceError(morkEnv* ev)
+{
+  ev->NewError("nil mTable_RowSpace");
+}
+
+void
+morkTable::GetTableOid(morkEnv* ev, mdbOid* outOid)
+{
+  morkRowSpace* space = mTable_RowSpace;
+  if ( space )
+  {
+    outOid->mOid_Scope = space->mSpace_Scope;
+    outOid->mOid_Id = mTable_Id;
+  }
+  else
+    this->NilRowSpaceError(ev);
+}
+
+nsIMdbTable*
+morkTable::AcquireTableHandle(morkEnv* ev)
+{
+  nsIMdbTable* outTable = 0;
+  orkinTable* t = (orkinTable*) mObject_Handle;
+  if ( t ) // have an old handle?
+    t->AddStrongRef(ev->AsMdbEnv());
+  else // need new handle?
+  {
+    t = orkinTable::MakeTable(ev, this);
+    mObject_Handle = t;
+  }
+  if ( t )
+    outTable = t;
+  return outTable;
+}
+
+mork_pos
+morkTable::ArrayHasOid(morkEnv* ev, const mdbOid* inOid)
+{
+  mork_count count = mTable_RowArray.mArray_Fill;
+  mork_pos pos = -1;
+  while ( ++pos < count )
+  {
+    morkRow* row = (morkRow*) mTable_RowArray.At(pos);
+    MORK_ASSERT(row);
+    if ( row && row->EqualOid(inOid) )
+    {
+      return pos;
+    }
+  }
+  return -1;
+}
+
+mork_pos
+morkTable::MapHasOid(morkEnv* ev, const mdbOid* inOid)
+{
+  morkRow* row = mTable_RowMap.GetOid(ev, inOid);
+  if ( row )
+    return 1;
+    
+  return -1;
+}
+
+mork_bool
+morkTable::AddRow(morkEnv* ev, morkRow* ioRow)
+{
+  morkRow* row = mTable_RowMap.GetRow(ev, ioRow);
+  if ( !row && ev->Good() )
+  {
+    mork_pos pos = mTable_RowArray.AppendSlot(ev, ioRow);
+    if ( ev->Good() && pos > 0 )
+    {
+      ioRow->AddTableUse(ev);
+      if ( mTable_RowMap.AddRow(ev, ioRow) )
+      {
+        // okay, anything else?
+      }
+      else
+        mTable_RowArray.CutSlot(ev, pos);
+    }
+  }
+  return ev->Good();
+}
+
+mork_bool
+morkTable::CutRow(morkEnv* ev, morkRow* ioRow)
+{
+  morkRow* row = mTable_RowMap.GetRow(ev, ioRow);
+  if ( row )
+  {
+    mork_count count = mTable_RowArray.mArray_Fill;
+    morkRow** rowSlots = (morkRow**) mTable_RowArray.mArray_Slots;
+    if ( rowSlots ) // array has vector as expected?
+    {
+      mork_pos pos = -1;
+      morkRow** end = rowSlots + count;
+      morkRow** slot = rowSlots - 1; // prepare for preincrement:
+      while ( ++slot < end ) // another slot to check?
+      {
+        if ( *slot == row ) // found the slot containing row?
+        {
+          pos = slot - rowSlots; // record absolute position
+          break; // end while loop
+        }
+      }
+      if ( pos >= 0 ) // need to cut if from the array?
+        mTable_RowArray.CutSlot(ev, pos);
+      else
+        ev->NewWarning("row not found in array");
+    }
+    else
+      mTable_RowArray.NilSlotsAddressError(ev);
+      
+    mTable_RowMap.CutRow(ev, ioRow);
+    if ( ioRow->CutTableUse(ev) == 0 )
+      ioRow->OnZeroTableUse(ev);
+  }
+  return ev->Good();
+}
+
+morkTableRowCursor*
+morkTable::NewTableRowCursor(morkEnv* ev, mork_pos inRowPos)
+{
+  morkTableRowCursor* outCursor = 0;
+  if ( ev->Good() )
+  {
+    nsIMdbHeap* heap = mTable_Store->mPort_Heap;
+    morkTableRowCursor* cursor = new(*heap, ev)
+      morkTableRowCursor(ev, morkUsage::kHeap, heap, this, inRowPos);
+    if ( cursor )
+    {
+      if ( ev->Good() )
+        outCursor = cursor;
+      else
+        cursor->CutStrongRef(ev);
+    }
+  }
+  return outCursor;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+morkTableMap::~morkTableMap()
+{
+}
+
+morkTableMap::morkTableMap(morkEnv* ev, const morkUsage& inUsage,
+  nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap)
+  : morkNodeMap(ev, inUsage, ioHeap, ioSlotHeap)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kTableMap;
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkTable.h

@@ -0,0 +1,207 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKTABLE_
+#define _MORKTABLE_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+#ifndef _MORKARRAY_
+#include "morkArray.h"
+#endif
+
+#ifndef _MORKROWMAP_
+#include "morkRowMap.h"
+#endif
+
+#ifndef _MORKNODEMAP_
+#include "morkNodeMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+class nsIMdbTable;
+#define morkDerived_kTable  /*i*/ 0x5462 /* ascii 'Tb' */
+
+#define morkTable_kStartRowArraySize 11 /* modest starting size for array */
+
+#define morkTable_kStartRowMapSlotCount 128
+
+class morkTable : public morkObject { 
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*    mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+
+  // morkHandle*    mObject_Handle;   // weak ref to handle for this object
+
+public: // state is public because the entire Mork system is private
+
+  morkStore*      mTable_Store;   // weak ref to port
+  // mork_seed       mTable_Seed; // use TableSeed() instead
+
+  // mTable_RowSpace->mSpace_Scope is row scope 
+  morkRowSpace*   mTable_RowSpace; // weak ref to containing space
+  
+  morkRowMap      mTable_RowMap;    // hash table of all members
+  morkArray       mTable_RowArray;   // array of morkRow pointers
+  
+  mork_tid        mTable_Id;
+  mork_kind       mTable_Kind;
+  
+  mork_bool       mTable_MustBeUnique;
+  mork_u1         mTable_Pad[ 3 ]; // padding to u4 alignment
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseTable() if open
+  virtual ~morkTable(); // assert that close executed earlier
+  
+public: // morkTable construction & destruction
+  morkTable(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioNodeHeap, morkStore* ioStore,
+    nsIMdbHeap* ioSlotHeap, morkRowSpace* ioRowSpace,
+    mork_tid inTableId,
+    mork_kind inKind, mork_bool inMustBeUnique);
+  void CloseTable(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkTable(const morkTable& other);
+  morkTable& operator=(const morkTable& other);
+
+public: // dynamic type identification
+  mork_bool IsTable() const
+  { return IsNode() && mNode_Derived == morkDerived_kTable; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonTableTypeError(morkEnv* ev);
+  static void NonTableTypeWarning(morkEnv* ev);
+  static void NilRowSpaceError(morkEnv* ev);
+
+public: // other table methods
+
+  // void DirtyAllTableContent(morkEnv* ev);
+
+  mork_seed TableSeed() const { return mTable_RowArray.mArray_Seed; }
+
+  nsIMdbTable* AcquireTableHandle(morkEnv* ev); // mObject_Handle
+  
+  mork_count GetRowCount() const { return mTable_RowArray.mArray_Fill; }
+
+  void GetTableOid(morkEnv* ev, mdbOid* outOid);
+  mork_pos  ArrayHasOid(morkEnv* ev, const mdbOid* inOid);
+  mork_pos  MapHasOid(morkEnv* ev, const mdbOid* inOid);
+  mork_bool AddRow(morkEnv* ev, morkRow* ioRow); // returns ev->Good()
+  mork_bool CutRow(morkEnv* ev, morkRow* ioRow); // returns ev->Good()
+  
+  morkTableRowCursor* NewTableRowCursor(morkEnv* ev, mork_pos inRowPos);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakTable(morkTable* me,
+    morkEnv* ev, morkTable** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongTableS(morkTable* me,
+    morkEnv* ev, morkTable** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkDerived_kTableMap  /*i*/ 0x744D /* ascii 'tM' */
+
+/*| morkTableMap: maps mork_token -> morkTable
+|*/
+class morkTableMap : public morkNodeMap { // for mapping tokens to tables
+
+public:
+
+  virtual ~morkTableMap();
+  morkTableMap(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap);
+
+public: // other map methods
+
+  mork_bool  AddTable(morkEnv* ev, morkTable* ioTable)
+  { return this->AddNode(ev, ioTable->mTable_Id, ioTable); }
+  // the AddTable() boolean return equals ev->Good().
+
+  mork_bool  CutTable(morkEnv* ev, mork_tid inTid)
+  { return this->CutNode(ev, inTid); }
+  // The CutTable() boolean return indicates whether removal happened. 
+  
+  morkTable*  GetTable(morkEnv* ev, mork_tid inTid)
+  { return (morkTable*) this->GetNode(ev, inTid); }
+  // Note the returned table does NOT have an increase in refcount for this.
+
+  mork_num CutAllTables(morkEnv* ev)
+  { return this->CutAllNodes(ev); }
+  // CutAllTables() releases all the referenced table values.
+};
+
+class morkTableMapIter: public morkMapIter{ // typesafe wrapper class
+
+public:
+  morkTableMapIter(morkEnv* ev, morkTableMap* ioMap)
+  : morkMapIter(ev, ioMap) { }
+ 
+  morkTableMapIter( ) : morkMapIter()  { }
+  void InitTableMapIter(morkEnv* ev, morkTableMap* ioMap)
+  { this->InitMapIter(ev, ioMap); }
+   
+  mork_change*
+  FirstTable(morkEnv* ev, mork_tid* outTid, morkTable** outTable)
+  { return this->First(ev, outTid, outTable); }
+  
+  mork_change*
+  NextTable(morkEnv* ev, mork_tid* outTid, morkTable** outTable)
+  { return this->Next(ev, outTid, outTable); }
+  
+  mork_change*
+  HereTable(morkEnv* ev, mork_tid* outTid, morkTable** outTable)
+  { return this->Here(ev, outTid, outTable); }
+  
+  mork_change*
+  CutHereTable(morkEnv* ev, mork_tid* outTid, morkTable** outTable)
+  { return this->CutHere(ev, outTid, outTable); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKTABLE_ */

mozilla/db/mork/src/morkTableRowCursor.cpp

@@ -0,0 +1,208 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKCURSOR_
+#include "morkCursor.h"
+#endif
+
+#ifndef _MORKTABLEROWCURSOR_
+#include "morkTableRowCursor.h"
+#endif
+
+#ifndef _ORKINTABLEROWCURSOR_
+#include "orkinTableRowCursor.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+#ifndef _MORKTABLE_
+#include "morkTable.h"
+#endif
+
+#ifndef _MORKROW_
+#include "morkRow.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkTableRowCursor::CloseMorkNode(morkEnv* ev) // CloseTableRowCursor() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseTableRowCursor(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkTableRowCursor::~morkTableRowCursor() // CloseTableRowCursor() executed earlier
+{
+  MORK_ASSERT(this->IsShutNode());
+}
+
+/*public non-poly*/
+morkTableRowCursor::morkTableRowCursor(morkEnv* ev,
+  const morkUsage& inUsage,
+  nsIMdbHeap* ioHeap, morkTable* ioTable, mork_pos inRowPos)
+: morkCursor(ev, inUsage, ioHeap)
+, mTableRowCursor_Table( 0 )
+{
+  if ( ev->Good() )
+  {
+    if ( ioTable )
+    {
+      mCursor_Pos = inRowPos;
+      mCursor_Seed = ioTable->TableSeed();
+      morkTable::SlotWeakTable(ioTable, ev, &mTableRowCursor_Table);
+      if ( ev->Good() )
+        mNode_Derived = morkDerived_kTableRowCursor;
+    }
+    else
+      ev->NilPointerError();
+  }
+}
+
+/*public non-poly*/ void
+morkTableRowCursor::CloseTableRowCursor(morkEnv* ev) 
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mCursor_Pos = -1;
+      mCursor_Seed = 0;
+      morkTable::SlotWeakTable((morkTable*) 0, ev, &mTableRowCursor_Table);
+      this->CloseCursor(ev);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void
+morkTableRowCursor::NonTableRowCursorTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkTableRowCursor");
+}
+
+orkinTableRowCursor*
+morkTableRowCursor::AcquireTableRowCursorHandle(morkEnv* ev)
+{
+  orkinTableRowCursor* outCursor = 0;
+  orkinTableRowCursor* c = (orkinTableRowCursor*) mObject_Handle;
+  if ( c ) // have an old handle?
+    c->AddStrongRef(ev->AsMdbEnv());
+  else // need new handle?
+  {
+    c = orkinTableRowCursor::MakeTableRowCursor(ev, this);
+    mObject_Handle = c;
+  }
+  if ( c )
+    outCursor = c;
+  return outCursor;
+}
+
+mdb_pos
+morkTableRowCursor::NextRowOid(morkEnv* ev, mdbOid* outOid)
+{
+  mdb_pos outPos = -1;
+  (void) this->NextRow(ev, outOid, &outPos);
+  return outPos;
+}
+
+morkRow*
+morkTableRowCursor::NextRow(morkEnv* ev, mdbOid* outOid, mdb_pos* outPos)
+{
+  morkRow* outRow = 0;
+  mork_pos pos = -1;
+  
+  morkTable* table = mTableRowCursor_Table;
+  if ( table )
+  {
+    if ( table->IsOpenNode() )
+    {
+      morkArray* array = &table->mTable_RowArray;
+      pos = mCursor_Pos;
+      if ( pos < 0 )
+        pos = 0;
+      else
+        ++pos;
+        
+      if ( pos < array->mArray_Fill )
+      {
+        mCursor_Pos = pos; // update for next time
+        morkRow* row = (morkRow*) array->At(pos);
+        if ( row )
+        {
+          if ( row->IsRow() )
+          {
+            outRow = row;
+            *outOid = row->mRow_Oid;
+          }
+          else
+            row->NonRowTypeError(ev);
+        }
+        else
+          ev->NilPointerError();
+      }
+      else
+      {
+        outOid->mOid_Scope = 0;
+        outOid->mOid_Id = morkId_kMinusOne;
+      }
+    }
+    else
+      table->NonOpenNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+
+  *outPos = pos;
+  return outRow;
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkTableRowCursor.h

@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKTABLEROWCURSOR_
+#define _MORKTABLEROWCURSOR_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKCURSOR_
+#include "morkCursor.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+class orkinTableRowCursor;
+#define morkDerived_kTableRowCursor  /*i*/ 0x7243 /* ascii 'rC' */
+
+class morkTableRowCursor : public morkCursor { // row iterator
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*     mNode_Heap;
+  // mork_able    mNode_Mutable; // can this node be modified?
+  // mork_load    mNode_Load;    // is this node clean or dirty?
+  // mork_base    mNode_Base;    // must equal morkBase_kNode
+  // mork_derived mNode_Derived; // depends on specific node subclass
+  // mork_access  mNode_Access;  // kOpen, kClosing, kShut, or kDead
+  // mork_usage   mNode_Usage;   // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_uses    mNode_Uses;    // refcount for strong refs
+  // mork_refs    mNode_Refs;    // refcount for strong refs + weak refs
+
+  // morkFactory* mObject_Factory;  // weak ref to suite factory
+
+  // mork_seed  mCursor_Seed;
+  // mork_pos   mCursor_Pos;
+  // mork_bool  mCursor_DoFailOnSeedOutOfSync;
+  // mork_u1    mCursor_Pad[ 3 ]; // explicitly pad to u4 alignment
+
+public: // state is public because the entire Mork system is private
+  morkTable*  mTableRowCursor_Table; // weak ref to table
+    
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseTableRowCursor()
+  virtual ~morkTableRowCursor(); // assert that close executed earlier
+  
+public: // morkTableRowCursor construction & destruction
+  morkTableRowCursor(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, morkTable* ioTable, mork_pos inRowPos);
+  void CloseTableRowCursor(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkTableRowCursor(const morkTableRowCursor& other);
+  morkTableRowCursor& operator=(const morkTableRowCursor& other);
+
+public: // dynamic type identification
+  mork_bool IsTableRowCursor() const
+  { return IsNode() && mNode_Derived == morkDerived_kTableRowCursor; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonTableRowCursorTypeError(morkEnv* ev);
+
+public: // other table row cursor methods
+
+  orkinTableRowCursor* AcquireTableRowCursorHandle(morkEnv* ev);
+  
+  mdb_pos NextRowOid(morkEnv* ev, mdbOid* outOid);
+  morkRow* NextRow(morkEnv* ev, mdbOid* outOid, mdb_pos* outPos);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakTableRowCursor(morkTableRowCursor* me,
+    morkEnv* ev, morkTableRowCursor** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongTableRowCursor(morkTableRowCursor* me,
+    morkEnv* ev, morkTableRowCursor** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKTABLEROWCURSOR_ */

mozilla/db/mork/src/morkThumb.cpp

@@ -0,0 +1,406 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKTHUMB_
+#include "morkThumb.h"
+#endif
+
+#ifndef _ORKINTHUMB_
+#include "orkinThumb.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+#ifndef _MORKFILE_
+#include "morkFile.h"
+#endif
+
+#ifndef _MORKWRITER_
+#include "morkWriter.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkThumb::CloseMorkNode(morkEnv* ev) // CloseThumb() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseThumb(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkThumb::~morkThumb() // assert CloseThumb() executed earlier
+{
+  MORK_ASSERT(mThumb_Magic==0);
+  MORK_ASSERT(mThumb_Store==0);
+  MORK_ASSERT(mThumb_File==0);
+}
+
+/*public non-poly*/
+morkThumb::morkThumb(morkEnv* ev,
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap,
+  nsIMdbHeap* ioSlotHeap, mork_magic inMagic)
+: morkObject(ev, inUsage, ioHeap, (morkHandle*) 0)
+, mThumb_Magic( 0 )
+, mThumb_Total( 0 )
+, mThumb_Current( 0 )
+
+, mThumb_Done( morkBool_kFalse )
+, mThumb_Broken( morkBool_kFalse )
+, mThumb_Seed( 0 )
+
+, mThumb_Store( 0 )
+, mThumb_File( 0 )
+, mThumb_Writer( 0 )
+, mThumb_SourcePort( 0 )
+
+, mThumb_DoCollect( morkBool_kFalse )
+{
+  if ( ev->Good() )
+  {
+    mThumb_Magic = inMagic;
+    mNode_Derived = morkDerived_kThumb;
+  }
+}
+
+/*public non-poly*/ void
+morkThumb::CloseThumb(morkEnv* ev) // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+    {
+      mThumb_Magic = 0;
+      morkWriter::SlotStrongWriter((morkWriter*) 0, ev, &mThumb_Writer);
+      morkFile::SlotStrongFile((morkFile*) 0, ev, &mThumb_File);
+      morkStore::SlotWeakStore((morkStore*) 0, ev, &mThumb_Store);
+      morkPort::SlotStrongPort((morkPort*) 0, ev, &mThumb_SourcePort);
+      this->MarkShut();
+    }
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void morkThumb::NonThumbTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkThumb");
+}
+
+/*static*/ void morkThumb::UnsupportedThumbMagicError(morkEnv* ev)
+{
+  ev->NewError("unsupported mThumb_Magic");
+}
+
+/*static*/ void morkThumb::NilThumbStoreError(morkEnv* ev)
+{
+  ev->NewError("nil mThumb_Store");
+}
+
+/*static*/ void morkThumb::NilThumbFileError(morkEnv* ev)
+{
+  ev->NewError("nil mThumb_File");
+}
+
+/*static*/ void morkThumb::NilThumbWriterError(morkEnv* ev)
+{
+  ev->NewError("nil mThumb_Writer");
+}
+
+/*static*/ void morkThumb::NilThumbSourcePortError(morkEnv* ev)
+{
+  ev->NewError("nil mThumb_SourcePort");
+}
+
+nsIMdbThumb*
+morkThumb::AcquireThumbHandle(morkEnv* ev)
+{
+  nsIMdbThumb* outThumb = 0;
+  orkinThumb* t = (orkinThumb*) mObject_Handle;
+  if ( t ) // have an old handle?
+    t->AddStrongRef(ev->AsMdbEnv());
+  else // need new handle?
+  {
+    t = orkinThumb::MakeThumb(ev, this);
+    mObject_Handle = t;
+  }
+  if ( t )
+    outThumb = t;
+  return outThumb;
+}
+
+/*static*/ morkThumb*
+morkThumb::Make_OpenFileStore(morkEnv* ev, nsIMdbHeap* ioHeap, 
+  morkStore* ioStore)
+{
+  morkThumb* outThumb = 0;
+  if ( ioHeap && ioStore )
+  {
+    outThumb = new(*ioHeap, ev)
+      morkThumb(ev, morkUsage::kHeap, ioHeap, ioHeap,
+        morkThumb_kMagic_OpenFileStore);
+        
+    if ( outThumb )
+    {
+      morkStore::SlotWeakStore(ioStore, ev, &outThumb->mThumb_Store);
+    }
+  }
+  else
+    ev->NilPointerError();
+    
+  return outThumb;
+}
+
+
+/*static*/ morkThumb*
+morkThumb::Make_CompressCommit(morkEnv* ev, 
+  nsIMdbHeap* ioHeap, morkStore* ioStore, mork_bool inDoCollect)
+{
+  morkThumb* outThumb = 0;
+  if ( ioHeap && ioStore )
+  {
+    morkFile* file = ioStore->mStore_File;
+    if ( file )
+    {
+      outThumb = new(*ioHeap, ev)
+        morkThumb(ev, morkUsage::kHeap, ioHeap, ioHeap,
+          morkThumb_kMagic_CompressCommit);
+          
+      if ( outThumb )
+      {
+        morkWriter* writer = new(*ioHeap, ev)
+          morkWriter(ev, morkUsage::kHeap, ioHeap, ioStore, file, ioHeap);
+        if ( writer )
+        {
+          writer->mWriter_NeedDirtyAll = morkBool_kTrue;
+          outThumb->mThumb_DoCollect = inDoCollect;
+          morkStore::SlotWeakStore(ioStore, ev, &outThumb->mThumb_Store);
+          morkFile::SlotStrongFile(file, ev, &outThumb->mThumb_File);
+          morkWriter::SlotStrongWriter(writer, ev, &outThumb->mThumb_Writer);
+        }
+      }
+    }
+    else
+      ioStore->NilStoreFileError(ev);
+  }
+  else
+    ev->NilPointerError();
+    
+  return outThumb;
+}
+
+// { ===== begin non-poly methods imitating nsIMdbThumb =====
+void morkThumb::GetProgress(morkEnv* ev, mdb_count* outTotal,
+  mdb_count* outCurrent, mdb_bool* outDone, mdb_bool* outBroken)
+{
+  if ( outTotal )
+    *outTotal = mThumb_Total;
+  if ( outCurrent )
+    *outCurrent = mThumb_Current;
+  if ( outDone )
+    *outDone = mThumb_Done;
+  if ( outBroken )
+    *outBroken = mThumb_Broken;
+}
+
+void morkThumb::DoMore(morkEnv* ev, mdb_count* outTotal,
+  mdb_count* outCurrent, mdb_bool* outDone, mdb_bool* outBroken)
+{
+  if ( !mThumb_Done && !mThumb_Broken )
+  {
+    switch ( mThumb_Magic )
+    {
+      case morkThumb_kMagic_OpenFilePort: // 1 /* factory method */
+        this->DoMore_OpenFilePort(ev); break;
+
+      case morkThumb_kMagic_OpenFileStore: // 2 /* factory method */
+        this->DoMore_OpenFileStore(ev); break;
+
+      case morkThumb_kMagic_ExportToFormat: // 3 /* port method */
+        this->DoMore_ExportToFormat(ev); break;
+
+      case morkThumb_kMagic_ImportContent: // 4 /* store method */
+        this->DoMore_ImportContent(ev); break;
+
+      case morkThumb_kMagic_LargeCommit: // 5 /* store method */
+        this->DoMore_LargeCommit(ev); break;
+
+      case morkThumb_kMagic_SessionCommit: // 6 /* store method */
+        this->DoMore_SessionCommit(ev); break;
+
+      case morkThumb_kMagic_CompressCommit: // 7 /* store method */
+        this->DoMore_CompressCommit(ev); break;
+
+      case morkThumb_kMagic_SearchManyColumns: // 8 /* table method */
+        this->DoMore_SearchManyColumns(ev); break;
+
+      case morkThumb_kMagic_NewSortColumn: // 9 /* table metho) */
+        this->DoMore_NewSortColumn(ev); break;
+
+      case morkThumb_kMagic_NewSortColumnWithCompare: // 10 /* table method */
+        this->DoMore_NewSortColumnWithCompare(ev); break;
+
+      case morkThumb_kMagic_CloneSortColumn: // 11 /* table method */
+        this->DoMore_CloneSortColumn(ev); break;
+
+      case morkThumb_kMagic_AddIndex: // 12 /* table method */
+        this->DoMore_AddIndex(ev); break;
+
+      case morkThumb_kMagic_CutIndex: // 13 /* table method */
+        this->DoMore_CutIndex(ev); break;
+
+      default:
+        this->UnsupportedThumbMagicError(ev);
+        break;
+    }
+  }
+  if ( outTotal )
+    *outTotal = mThumb_Total;
+  if ( outCurrent )
+    *outCurrent = mThumb_Current;
+  if ( outDone )
+    *outDone = mThumb_Done;
+  if ( outBroken )
+    *outBroken = mThumb_Broken;
+}
+
+void morkThumb::CancelAndBreakThumb(morkEnv* ev)
+{
+  mThumb_Broken = morkBool_kTrue;
+}
+
+// } ===== end non-poly methods imitating nsIMdbThumb =====
+
+morkStore*
+morkThumb::ThumbToOpenStore(morkEnv* ev)
+// for orkinFactory::ThumbToOpenStore() after OpenFileStore()
+{
+  return mThumb_Store;
+}
+
+void morkThumb::DoMore_OpenFilePort(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_OpenFileStore(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_ExportToFormat(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_ImportContent(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_LargeCommit(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_SessionCommit(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_CompressCommit(morkEnv* ev)
+{
+  morkWriter* writer = mThumb_Writer;
+  if ( writer )
+  {
+    writer->WriteMore(ev);
+    mThumb_Total = writer->mWriter_TotalCount;
+    mThumb_Current = writer->mWriter_DoneCount;
+    mThumb_Done = ( ev->Bad() || writer->IsWritingDone() );
+    mThumb_Broken = ev->Bad();
+  }
+  else
+  {
+    this->NilThumbWriterError(ev);
+    mThumb_Broken = morkBool_kTrue;
+    mThumb_Done = morkBool_kTrue;
+  }
+}
+
+void morkThumb::DoMore_SearchManyColumns(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_NewSortColumn(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_NewSortColumnWithCompare(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_CloneSortColumn(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_AddIndex(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+void morkThumb::DoMore_CutIndex(morkEnv* ev)
+{
+  this->UnsupportedThumbMagicError(ev);
+}
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkThumb.h

@@ -0,0 +1,176 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKTHUMB_
+#define _MORKTHUMB_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKOBJECT_
+#include "morkObject.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+#define morkThumb_kMagic_OpenFilePort               1 /* factory method */
+#define morkThumb_kMagic_OpenFileStore              2 /* factory method */
+#define morkThumb_kMagic_ExportToFormat             3 /* port method */
+#define morkThumb_kMagic_ImportContent              4 /* store method */
+#define morkThumb_kMagic_LargeCommit                5 /* store method */
+#define morkThumb_kMagic_SessionCommit              6 /* store method */
+#define morkThumb_kMagic_CompressCommit             7 /* store method */
+#define morkThumb_kMagic_SearchManyColumns          8 /* table method */
+#define morkThumb_kMagic_NewSortColumn              9 /* table metho) */
+#define morkThumb_kMagic_NewSortColumnWithCompare  10 /* table method */
+#define morkThumb_kMagic_CloneSortColumn           11 /* table method */
+#define morkThumb_kMagic_AddIndex                  12 /* table method */
+#define morkThumb_kMagic_CutIndex                  13 /* table method */
+
+#define morkDerived_kThumb     /*i*/ 0x5468 /* ascii 'Th' */
+
+/*| morkThumb: 
+|*/
+class morkThumb : public morkObject {
+
+// public: // slots inherited from morkNode (meant to inform only)
+  // nsIMdbHeap*    mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+
+  // morkHandle*      mObject_Handle;   // weak ref to handle for this object
+
+public: // state is public because the entire Mork system is private
+  // might as well include all the return values here:
+  
+  mork_magic   mThumb_Magic;   // magic sig different in each thumb type
+  mork_count   mThumb_Total;
+  mork_count   mThumb_Current;
+
+  mork_bool    mThumb_Done;
+  mork_bool    mThumb_Broken;
+  mork_u2      mThumb_Seed;  // optional seed for u4 alignment padding
+  
+  morkStore*   mThumb_Store; // weak ref to created store
+  morkFile*    mThumb_File;  // strong ref to file (store, import, export)
+  morkWriter*  mThumb_Writer;  // strong ref to writer (for commit)
+  morkPort*    mThumb_SourcePort;  // strong ref to port for import
+  
+  mork_bool    mThumb_DoCollect; // influence whether a collect happens
+  mork_bool    mThumb_Pad[ 3 ]; // padding for u4 alignment
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseThumb() only if open
+  virtual ~morkThumb(); // assert that CloseThumb() executed earlier
+  
+public: // morkThumb construction & destruction
+  morkThumb(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, nsIMdbHeap* ioSlotHeap, mork_magic inMagic);
+  void CloseThumb(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkThumb(const morkThumb& other);
+  morkThumb& operator=(const morkThumb& other);
+
+public: // dynamic type identification
+  mork_bool IsThumb() const
+  { return IsNode() && mNode_Derived == morkDerived_kThumb; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonThumbTypeError(morkEnv* ev);
+  static void UnsupportedThumbMagicError(morkEnv* ev);
+
+  static void NilThumbStoreError(morkEnv* ev);
+  static void NilThumbFileError(morkEnv* ev);
+  static void NilThumbWriterError(morkEnv* ev);
+  static void NilThumbSourcePortError(morkEnv* ev);
+
+public: // 'do more' methods
+
+  void DoMore_OpenFilePort(morkEnv* ev);
+  void DoMore_OpenFileStore(morkEnv* ev);
+  void DoMore_ExportToFormat(morkEnv* ev);
+  void DoMore_ImportContent(morkEnv* ev);
+  void DoMore_LargeCommit(morkEnv* ev);
+  void DoMore_SessionCommit(morkEnv* ev);
+  void DoMore_CompressCommit(morkEnv* ev);
+  void DoMore_SearchManyColumns(morkEnv* ev);
+  void DoMore_NewSortColumn(morkEnv* ev);
+  void DoMore_NewSortColumnWithCompare(morkEnv* ev);
+  void DoMore_CloneSortColumn(morkEnv* ev);
+  void DoMore_AddIndex(morkEnv* ev);
+  void DoMore_CutIndex(morkEnv* ev);
+
+public: // other thumb methods
+
+  nsIMdbThumb* AcquireThumbHandle(morkEnv* ev); // mObject_Handle
+
+  morkStore* ThumbToOpenStore(morkEnv* ev);
+  // for orkinFactory::ThumbToOpenStore() after OpenFileStore()
+
+public: // assorted thumb constructors
+
+  static morkThumb* Make_OpenFileStore(morkEnv* ev, 
+    nsIMdbHeap* ioHeap,morkStore* ioStore);
+
+  static morkThumb* Make_CompressCommit(morkEnv* ev, 
+    nsIMdbHeap* ioHeap,morkStore* ioStore, mork_bool inDoCollect);
+
+// { ===== begin non-poly methods imitating nsIMdbThumb =====
+  void GetProgress(morkEnv* ev, mdb_count* outTotal,
+    mdb_count* outCurrent, mdb_bool* outDone, mdb_bool* outBroken);
+  
+  void DoMore(morkEnv* ev, mdb_count* outTotal,
+    mdb_count* outCurrent, mdb_bool* outDone, mdb_bool* outBroken);
+  
+  void CancelAndBreakThumb(morkEnv* ev);
+// } ===== end non-poly methods imitating nsIMdbThumb =====
+
+
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakThumb(morkThumb* me,
+    morkEnv* ev, morkThumb** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongThumb(morkThumb* me,
+    morkEnv* ev, morkThumb** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKTHUMB_ */

mozilla/db/mork/src/morkWriter.h

@@ -0,0 +1,297 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKWRITER_
+#define _MORKWRITER_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKMAP_
+#include "morkMap.h"
+#endif
+
+#ifndef _MORKROWMAP_
+#include "morkRowMap.h"
+#endif
+
+#ifndef _MORKTABLE_
+#include "morkTable.h"
+#endif
+
+#ifndef _MORKATOMMAP_
+#include "morkAtomMap.h"
+#endif
+
+#ifndef _MORKATOMSPACE_
+#include "morkAtomSpace.h"
+#endif
+
+#ifndef _MORKROWSPACE_
+#include "morkRowSpace.h"
+#endif
+
+#ifndef _MORKSTREAM_
+#include "morkStream.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+#define morkWriter_kStreamBufSize /*i*/ (16) /* buffer size for stream */ 
+
+#define morkDerived_kWriter  /*i*/ 0x5772 /* ascii 'Wr' */
+
+#define morkWriter_kPhaseNothingDone          0 /* nothing has yet been done */
+#define morkWriter_kPhaseDirtyAllDone         1 /* DirtyAll() is done */
+#define morkWriter_kPhasePutHeaderDone        2 /* PutHeader() is done */
+
+#define morkWriter_kPhaseRenumberAllDone      3 /* RenumberAll() is done */
+
+#define morkWriter_kPhaseStoreAtomSpaces      4 /*mWriter_StoreAtomSpacesIter*/
+#define morkWriter_kPhaseAtomSpaceAtomAids    5 /*mWriter_AtomSpaceAtomAidsIter*/
+
+#define morkWriter_kPhaseStoreRowSpacesTables 6 /*mWriter_StoreRowSpacesIter*/
+#define morkWriter_kPhaseRowSpaceTables       7 /*mWriter_RowSpaceTablesIter*/
+#define morkWriter_kPhaseTableRowArray        8 /*mWriter_TableRowArrayPos */
+
+#define morkWriter_kPhaseStoreRowSpacesRows   9 /*mWriter_StoreRowSpacesIter*/
+#define morkWriter_kPhaseRowSpaceRows        10 /*mWriter_RowSpaceRowsIter*/
+
+#define morkWriter_kPhaseContentDone         11 /* all content written */
+#define morkWriter_kPhaseWritingDone         12 /* everthing has been done */
+
+#define morkWriter_kCountNumberOfPhases      13 /* part of mWrite_TotalCount */
+
+#define morkWriter_kMaxColumnNameSize        128 /* longest writable col name */
+
+#define morkWriter_kMaxIndent 48 /* default value for mWriter_MaxIndent */
+
+#define morkWriter_kTableMetaCellDepth 4 /* */
+#define morkWriter_kTableMetaCellValueDepth 6 /* */
+
+#define morkWriter_kDictMetaCellDepth 4 /* */
+#define morkWriter_kDictMetaCellValueDepth 6 /* */
+
+#define morkWriter_kDictAliasDepth 2 /* */
+#define morkWriter_kDictAliasValueDepth 4 /* */
+
+#define morkWriter_kRowDepth 2 /* */
+#define morkWriter_kRowCellDepth 4 /* */
+#define morkWriter_kRowCellValueDepth 6 /* */
+
+class morkWriter : public morkNode { // row iterator
+
+// public: // slots inherited from morkObject (meant to inform only)
+  // nsIMdbHeap*     mNode_Heap;
+  // mork_able    mNode_Mutable; // can this node be modified?
+  // mork_load    mNode_Load;    // is this node clean or dirty?
+  // mork_base    mNode_Base;    // must equal morkBase_kNode
+  // mork_derived mNode_Derived; // depends on specific node subclass
+  // mork_access  mNode_Access;  // kOpen, kClosing, kShut, or kDead
+  // mork_usage   mNode_Usage;   // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_uses    mNode_Uses;    // refcount for strong refs
+  // mork_refs    mNode_Refs;    // refcount for strong refs + weak refs
+
+public: // state is public because the entire Mork system is private
+
+  morkStore*   mWriter_Store;      // weak ref to committing store
+  morkFile*    mWriter_File;       // strong ref to store's file
+  morkFile*    mWriter_Bud;        // strong ref to bud of mWriter_File
+  morkStream*  mWriter_Stream;     // strong ref to stream on bud file
+  nsIMdbHeap*  mWriter_SlotHeap;   // strong ref to slot heap
+  
+  mork_count   mWriter_TotalCount;  // count of all things to be written
+  mork_count   mWriter_DoneCount;   // count of things already written
+  
+  mork_size    mWriter_LineSize;  // length of current line being written
+  mork_size    mWriter_MaxIndent; // line size forcing a line break
+  
+  mork_cscode  mWriter_TableCharset;     // current charset metainfo
+  mork_scope   mWriter_TableAtomScope;   // current atom scope
+  mork_scope   mWriter_TableRowScope;    // current row scope
+  mork_scope   mWriter_TableTableScope;  // current table scope
+  mork_scope   mWriter_TableColumnScope; // current column scope
+  mork_kind    mWriter_TableKind;        // current table kind
+  
+  mork_cscode  mWriter_RowCharset;      // current charset metainfo
+  mork_scope   mWriter_RowAtomScope;    // current atom scope
+  mork_scope   mWriter_RowScope;        // current row scope
+  
+  mork_cscode  mWriter_DictCharset;      // current charset metainfo
+  mork_scope   mWriter_DictAtomScope;    // current atom scope
+ 
+  mork_bool    mWriter_NeedDirtyAll;  // need to call DirtyAll()
+  mork_u1      mWriter_Phase;         // status of writing process
+  mork_bool    mWriter_DidStartDict;  // true when a dict has been started
+  mork_bool    mWriter_DidEndDict;    // true when a dict has been ended
+
+  mork_pos     mWriter_TableRowArrayPos;  // index into mTable_RowArray
+   
+  char         mWriter_SafeNameBuf[ (morkWriter_kMaxColumnNameSize * 2) + 4 ];
+  // Note: extra four bytes in ColNameBuf means we can always append to yarn
+
+  char         mWriter_ColNameBuf[ morkWriter_kMaxColumnNameSize + 4 ];
+  // Note: extra four bytes in ColNameBuf means we can always append to yarn
+  
+  mdbYarn      mWriter_ColYarn; // a yarn to describe space in ColNameBuf:
+  // mYarn_Buf == mWriter_ColNameBuf, mYarn_Size == morkWriter_kMaxColumnNameSize
+  
+  mdbYarn      mWriter_SafeYarn; // a yarn to describe space in ColNameBuf:
+  // mYarn_Buf == mWriter_SafeNameBuf, mYarn_Size == (kMaxColumnNameSize * 2)
+
+  morkAtomSpaceMapIter  mWriter_StoreAtomSpacesIter;   // for mStore_AtomSpaces
+  morkAtomAidMapIter  mWriter_AtomSpaceAtomAidsIter; // for AtomSpace_AtomAids
+  
+  morkRowSpaceMapIter  mWriter_StoreRowSpacesIter;    // for mStore_RowSpaces
+  morkTableMapIter  mWriter_RowSpaceTablesIter;    // for mRowSpace_Tables
+  morkRowMapIter  mWriter_RowSpaceRowsIter;      // for mRowSpace_Rows
+   
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseWriter()
+  virtual ~morkWriter(); // assert that close executed earlier
+  
+public: // morkWriter construction & destruction
+  morkWriter(morkEnv* ev, const morkUsage& inUsage,
+    nsIMdbHeap* ioHeap, morkStore* ioStore, morkFile* ioFile,
+    nsIMdbHeap* ioSlotHeap);
+  void CloseWriter(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkWriter(const morkWriter& other);
+  morkWriter& operator=(const morkWriter& other);
+
+public: // dynamic type identification
+  mork_bool IsWriter() const
+  { return IsNode() && mNode_Derived == morkDerived_kWriter; }
+// } ===== end morkNode methods =====
+
+public: // typing & errors
+  static void NonWriterTypeError(morkEnv* ev);
+  static void NilWriterStoreError(morkEnv* ev);
+  static void NilWriterBudError(morkEnv* ev);
+  static void NilWriterStreamError(morkEnv* ev);
+  static void UnsupportedPhaseError(morkEnv* ev);
+
+public: // inlines
+  mork_bool DidStartDict() const { return mWriter_DidStartDict; }
+  mork_bool DidEndDict() const { return mWriter_DidEndDict; }
+  
+  mork_bool NeedLineBreak() const
+  { return ( mWriter_LineSize > mWriter_MaxIndent ); }
+  
+  void IndentAsNeeded(morkEnv* ev, mork_size inDepth)
+  { 
+    if ( mWriter_LineSize > mWriter_MaxIndent )
+      mWriter_LineSize = mWriter_Stream->PutIndent(ev, inDepth);
+  }
+
+public: // iterative/asynchronouse writing
+  
+  mork_bool WriteMore(morkEnv* ev); // call until IsWritingDone() is true
+  
+  mork_bool IsWritingDone() const // don't call WriteMore() any longer?
+  { return mWriter_Phase == morkWriter_kPhaseWritingDone; }
+
+public: // marking all content dirty
+  mork_bool DirtyAll(morkEnv* ev);
+  // DirtyAll() visits every store sub-object and marks 
+  // them dirty, including every table, row, cell, and atom.  The return
+  // equals ev->Good(), to show whether any error happened.  This method is
+  // intended for use in the beginning of a "compress commit" which writes
+  // all store content, whether dirty or not.  We dirty everything first so
+  // that later iterations over content can mark things clean as they are
+  // written, and organize the process of serialization so that objects are
+  // written only at need (because of being dirty).  Note the method can 
+  // stop early when any error happens, since this will abort any commit.
+
+public: // phase methods
+  mork_bool OnNothingDone(morkEnv* ev);
+  mork_bool OnDirtyAllDone(morkEnv* ev);
+  mork_bool OnPutHeaderDone(morkEnv* ev);
+
+  mork_bool OnRenumberAllDone(morkEnv* ev);
+
+  mork_bool OnStoreAtomSpaces(morkEnv* ev);
+  mork_bool OnAtomSpaceAtomAids(morkEnv* ev);
+
+  mork_bool OnStoreRowSpacesTables(morkEnv* ev);
+  mork_bool OnRowSpaceTables(morkEnv* ev);
+  mork_bool OnTableRowArray(morkEnv* ev);
+
+  mork_bool OnStoreRowSpacesRows(morkEnv* ev);
+  mork_bool OnRowSpaceRows(morkEnv* ev);
+
+  mork_bool OnContentDone(morkEnv* ev);
+  mork_bool OnWritingDone(morkEnv* ev);
+
+public: // writing dict items first pass
+  mork_bool PutTableDict(morkEnv* ev, morkTable* ioTable);
+  mork_bool PutRowDict(morkEnv* ev, morkRow* ioRow);
+
+public: // writing node content second pass
+  mork_bool PutTable(morkEnv* ev, morkTable* ioTable);
+  mork_bool PutRow(morkEnv* ev, morkRow* ioRow);
+  mork_bool PutRowCells(morkEnv* ev, morkRow* ioRow);
+
+public: // other writer methods
+
+  mork_size WriteYarn(morkEnv* ev, const mdbYarn* inYarn);
+  // return number of atom bytes written on the current line (which
+  // implies that escaped line breaks will make the size value smaller
+  // than the entire yarn's size, since only part goes on a last line).
+
+  mork_size WriteAtom(morkEnv* ev, const morkAtom* inAtom);
+  // return number of atom bytes written on the current line (which
+  // implies that escaped line breaks will make the size value smaller
+  // than the entire atom's size, since only part goes on a last line).
+
+  void WriteAllStoreTables(morkEnv* ev);
+  void WriteAtomSpaceAsDict(morkEnv* ev, morkAtomSpace* ioSpace);
+  
+  void WriteTokenToTokenMetaCell(morkEnv* ev, mork_token inCol,
+    mork_token inValue);
+  void WriteStringToTokenDictCell(morkEnv* ev, const char* inCol, 
+    mork_token inValue);
+  // Note inCol should begin with '(' and end with '=', with col in between.
+
+   void StartDict(morkEnv* ev);
+  void EndDict(morkEnv* ev);
+
+   void StartTable(morkEnv* ev, morkTable* ioTable);
+  void EndTable(morkEnv* ev);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakWriter(morkWriter* me,
+    morkEnv* ev, morkWriter** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongWriter(morkWriter* me,
+    morkEnv* ev, morkWriter** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKTABLEROWCURSOR_ */

mozilla/db/mork/src/morkYarn.cpp

@@ -0,0 +1,93 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKYARN_
+#include "morkYarn.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+// ````` ````` ````` ````` ````` 
+// { ===== begin morkNode interface =====
+
+/*public virtual*/ void
+morkYarn::CloseMorkNode(morkEnv* ev) /*i*/ // CloseYarn() only if open
+{
+  if ( this->IsOpenNode() )
+  {
+    this->MarkClosing();
+    this->CloseYarn(ev);
+    this->MarkShut();
+  }
+}
+
+/*public virtual*/
+morkYarn::~morkYarn() /*i*/ // assert CloseYarn() executed earlier
+{
+  MORK_ASSERT(mYarn_Body.mYarn_Buf==0);
+}
+
+/*public non-poly*/
+morkYarn::morkYarn(morkEnv* ev, /*i*/
+  const morkUsage& inUsage, nsIMdbHeap* ioHeap)
+  : morkNode(ev, inUsage, ioHeap)
+{
+  if ( ev->Good() )
+    mNode_Derived = morkDerived_kYarn;
+}
+
+/*public non-poly*/ void
+morkYarn::CloseYarn(morkEnv* ev) /*i*/ // called by CloseMorkNode();
+{
+  if ( this )
+  {
+    if ( this->IsNode() )
+      this->MarkShut();
+    else
+      this->NonNodeError(ev);
+  }
+  else
+    ev->NilPointerError();
+}
+
+// } ===== end morkNode methods =====
+// ````` ````` ````` ````` ````` 
+
+/*static*/ void
+morkYarn::NonYarnTypeError(morkEnv* ev)
+{
+  ev->NewError("non morkYarn");
+}
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/morkYarn.h

@@ -0,0 +1,88 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MORKYARN_
+#define _MORKYARN_ 1
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+#define morkDerived_kYarn     /*i*/ 0x7952 /* ascii 'yR' */
+
+/*| morkYarn: a reference counted nsIMdbYarn C struct.  This is for use in those
+**| few cases where single instances of reference counted buffers are needed
+**| in Mork, and we expect few enough instances that overhead is not a factor
+**| in decided whether to use such a thing.
+|*/
+class morkYarn : public morkNode { // refcounted yarn
+  
+// public: // slots inherited from morkNode (meant to inform only)
+  // nsIMdbHeap*       mNode_Heap;
+
+  // mork_base      mNode_Base;     // must equal morkBase_kNode
+  // mork_derived   mNode_Derived;  // depends on specific node subclass
+  
+  // mork_access    mNode_Access;   // kOpen, kClosing, kShut, or kDead
+  // mork_usage     mNode_Usage;    // kHeap, kStack, kMember, kGlobal, kNone
+  // mork_able      mNode_Mutable;  // can this node be modified?
+  // mork_load      mNode_Load;     // is this node clean or dirty?
+  
+  // mork_uses      mNode_Uses;     // refcount for strong refs
+  // mork_refs      mNode_Refs;     // refcount for strong refs + weak refs
+
+public: // state is public because the entire Mork system is private
+  mdbYarn  mYarn_Body;
+  
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  virtual void CloseMorkNode(morkEnv* ev); // CloseYarn() only if open
+  virtual ~morkYarn(); // assert that CloseYarn() executed earlier
+  
+public: // morkYarn construction & destruction
+  morkYarn(morkEnv* ev, const morkUsage& inUsage, nsIMdbHeap* ioHeap);
+  void CloseYarn(morkEnv* ev); // called by CloseMorkNode();
+
+private: // copying is not allowed
+  morkYarn(const morkYarn& other);
+  morkYarn& operator=(const morkYarn& other);
+
+public: // dynamic type identification
+  mork_bool IsYarn() const
+  { return IsNode() && mNode_Derived == morkDerived_kYarn; }
+// } ===== end morkNode methods =====
+
+public: // typing
+  static void NonYarnTypeError(morkEnv* ev);
+
+public: // typesafe refcounting inlines calling inherited morkNode methods
+  static void SlotWeakYarn(morkYarn* me,
+    morkEnv* ev, morkYarn** ioSlot)
+  { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+  
+  static void SlotStrongYarn(morkYarn* me,
+    morkEnv* ev, morkYarn** ioSlot)
+  { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); }
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _MORKYARN_ */

mozilla/db/mork/src/orkinCell.cpp

@@ -0,0 +1,673 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKHANDLE_
+#include "morkHandle.h"
+#endif
+
+#ifndef _MORKCELL_
+#include "morkCell.h"
+#endif
+
+#ifndef _MORKCELLOBJECT_
+#include "morkCellObject.h"
+#endif
+
+#ifndef _MORKROWOBJECT_
+#include "morkRowObject.h"
+#endif
+
+#ifndef _ORKINCELL_
+#include "orkinCell.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _MORKPOOL_
+#include "morkPool.h"
+#endif
+
+#ifndef _MORKROW_
+#include "morkRow.h"
+#endif
+
+#ifndef _MORKATOM_
+#include "morkAtom.h"
+#endif
+
+#ifndef _MORKSPACE_
+#include "morkSpace.h"
+#endif
+
+#ifndef _MORKROWSPACE_
+#include "morkRowSpace.h"
+#endif
+
+#ifndef _MORKSTORE_
+#include "morkStore.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/* public virtual*/
+orkinCell:: ~orkinCell() // morkHandle destructor does everything
+{
+}
+
+/*protected non-poly construction*/
+orkinCell::orkinCell(morkEnv* ev, // morkUsage is morkUsage_kPool
+    morkHandleFace* ioFace,    // must not be nil, cookie for this handle
+    morkCellObject* ioObject)  // must not be nil, the object for this handle
+: morkHandle(ev, ioFace, ioObject, morkMagic_kCell)
+{
+  // do not modify mNode_Derived; leave it equal to morkDerived_kHandle
+}
+
+
+/*static */ orkinCell*
+orkinCell::MakeCell(morkEnv* ev, morkCellObject* ioObject)
+{
+  mork_bool isEnv = ev->IsEnv();
+  MORK_ASSERT(isEnv);
+  if ( isEnv )
+  {
+    morkHandleFace* face = ev->NewHandle(sizeof(orkinCell));
+    if ( face )
+      return new(face) orkinCell(ev, face, ioObject);
+    else
+      ev->OutOfMemoryError();
+  }
+    
+  return (orkinCell*) 0;
+}
+
+// ResyncWithRow() moved to the morkCellObject class:
+// mork_bool
+// orkinCell::ResyncWithRow(morkEnv* ev)
+// {
+//   morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+//   morkRow* row = cellObj->mCellObject_Row;
+//   mork_pos pos = 0;
+//   morkCell* cell = row->GetCell(ev, cellObj->mCellObject_Col, &pos);
+//   if ( cell )
+//   {
+//     cellObj->mCellObject_Pos = pos;
+//     cellObj->mCellObject_Cell = cell;
+//     cellObj->mCellObject_RowSeed = row->mRow_Seed;
+//   }
+//   else
+//   {
+//     cellObj->mCellObject_Cell = 0;
+//     cellObj->MissingRowColumnError(ev);
+//   }
+//   return ev->Good();
+// }
+
+morkEnv*
+orkinCell::CanUseCell(nsIMdbEnv* mev, mork_bool inMutable,
+  mdb_err* outErr, morkCell** outCell) const
+{
+  morkEnv* outEnv = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*)
+      this->GetGoodHandleObject(ev, inMutable, morkMagic_kCell);
+    if ( cellObj )
+    {
+      if ( cellObj->IsCellObject() )
+      {
+        if ( cellObj->IsMutable() || !inMutable )
+        {
+          morkRowObject* rowObj = cellObj->mCellObject_RowObject;
+          if ( rowObj )
+          {
+            morkRow* row = cellObj->mCellObject_Row;
+            if ( row )
+            {
+              if ( rowObj->mRowObject_Row == row )
+              {
+                mork_u2 oldSeed = cellObj->mCellObject_RowSeed;
+                if ( row->mRow_Seed == oldSeed || cellObj->ResyncWithRow(ev) )
+                {
+                  cell = cellObj->mCellObject_Cell;
+                  if ( cell )
+                  {
+                    outEnv = ev;
+                  }
+                  else
+                    cellObj->NilCellError(ev);
+                }
+              }
+              else
+                cellObj->WrongRowObjectRowError(ev);
+            }
+            else
+              cellObj->NilRowError(ev);
+          }
+          else
+            cellObj->NilRowObjectError(ev);
+        }
+        else
+          cellObj->NonMutableNodeError(ev);
+      }
+      else
+        cellObj->NonCellObjectTypeError(ev);
+    }
+    *outErr = ev->AsErr();
+  }
+  MORK_ASSERT(outEnv);
+  *outCell = cell;
+  
+  return outEnv;
+}
+
+
+// { ===== begin nsIMdbISupports methods =====
+/*virtual*/ mdb_err
+orkinCell::AddRef() // add strong ref with no
+{
+  morkEnv* ev = mHandle_Env;
+  if ( ev && ev->IsEnv() )
+    return this->Handle_AddStrongRef(ev->AsMdbEnv());
+  else
+    return morkEnv_kNonEnvTypeError;
+}
+
+/*virtual*/ mdb_err
+orkinCell::Release() // cut strong ref
+{
+  morkEnv* ev = mHandle_Env;
+  if ( ev && ev->IsEnv() )
+    return this->Handle_CutStrongRef(ev->AsMdbEnv());
+  else
+    return morkEnv_kNonEnvTypeError;
+}
+// } ===== end nsIMdbISupports methods =====
+
+// { ===== begin nsIMdbObject methods =====
+
+// { ----- begin attribute methods -----
+/*virtual*/ mdb_err
+orkinCell::IsFrozenMdbObject(nsIMdbEnv* mev, mdb_bool* outIsReadonly)
+{
+  return this->Handle_IsFrozenMdbObject(mev, outIsReadonly);
+}
+// same as nsIMdbPort::GetIsPortReadonly() when this object is inside a port.
+// } ----- end attribute methods -----
+
+// { ----- begin factory methods -----
+/*virtual*/ mdb_err
+orkinCell::GetMdbFactory(nsIMdbEnv* mev, nsIMdbFactory** acqFactory)
+{
+  return this->Handle_GetMdbFactory(mev, acqFactory);
+} 
+// } ----- end factory methods -----
+
+// { ----- begin ref counting for well-behaved cyclic graphs -----
+/*virtual*/ mdb_err
+orkinCell::GetWeakRefCount(nsIMdbEnv* mev, // weak refs
+  mdb_count* outCount)
+{
+  return this->Handle_GetWeakRefCount(mev, outCount);
+}  
+/*virtual*/ mdb_err
+orkinCell::GetStrongRefCount(nsIMdbEnv* mev, // strong refs
+  mdb_count* outCount)
+{
+  return this->Handle_GetStrongRefCount(mev, outCount);
+}
+
+/*virtual*/ mdb_err
+orkinCell::AddWeakRef(nsIMdbEnv* mev)
+{
+  return this->Handle_AddWeakRef(mev);
+}
+/*virtual*/ mdb_err
+orkinCell::AddStrongRef(nsIMdbEnv* mev)
+{
+  return this->Handle_AddStrongRef(mev);
+}
+
+/*virtual*/ mdb_err
+orkinCell::CutWeakRef(nsIMdbEnv* mev)
+{
+  return this->Handle_CutWeakRef(mev);
+}
+/*virtual*/ mdb_err
+orkinCell::CutStrongRef(nsIMdbEnv* mev)
+{
+  return this->Handle_CutStrongRef(mev);
+}
+
+/*virtual*/ mdb_err
+orkinCell::CloseMdbObject(nsIMdbEnv* mev)
+{
+  return this->Handle_CloseMdbObject(mev);
+}
+
+/*virtual*/ mdb_err
+orkinCell::IsOpenMdbObject(nsIMdbEnv* mev, mdb_bool* outOpen)
+{
+  return this->Handle_IsOpenMdbObject(mev, outOpen);
+}
+// } ----- end ref counting -----
+
+// } ===== end nsIMdbObject methods =====
+
+// { ===== begin nsIMdbBlob methods =====
+
+// { ----- begin attribute methods -----
+/*virtual*/ mdb_err
+orkinCell::SetBlob(nsIMdbEnv* mev,
+  nsIMdbBlob* ioBlob)
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    ev->StubMethodOnlyError();
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+} // reads inBlob slots
+// when inBlob is in the same suite, this might be fastest cell-to-cell
+
+/*virtual*/ mdb_err
+orkinCell::ClearBlob( // make empty (so content has zero length)
+  nsIMdbEnv* mev)
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    ev->StubMethodOnlyError();
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}
+// clearing a yarn is like SetYarn() with empty yarn instance content
+
+/*virtual*/ mdb_err
+orkinCell::GetBlobFill(nsIMdbEnv* mev,
+  mdb_fill* outFill)
+// Same value that would be put into mYarn_Fill, if one called GetYarn()
+// with a yarn instance that had mYarn_Buf==nil and mYarn_Size==0.
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    ev->StubMethodOnlyError();
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}  // size of blob 
+
+/*virtual*/ mdb_err
+orkinCell::SetYarn(nsIMdbEnv* mev, 
+  const mdbYarn* inYarn)
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    morkRow* row = cellObj->mCellObject_Row;
+    if ( row )
+    {
+      morkStore* store = row->GetRowSpaceStore(ev);
+      if ( store )
+        cell->SetYarn(ev, inYarn, store);
+    }
+    else
+      ev->NilPointerError();
+
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}   // reads from yarn slots
+// make this text object contain content from the yarn's buffer
+
+/*virtual*/ mdb_err
+orkinCell::GetYarn(nsIMdbEnv* mev, 
+  mdbYarn* outYarn)
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkAtom* atom = cell->GetAtom();
+    atom->GetYarn(outYarn);
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}  // writes some yarn slots 
+// copy content into the yarn buffer, and update mYarn_Fill and mYarn_Form
+
+/*virtual*/ mdb_err
+orkinCell::AliasYarn(nsIMdbEnv* mev, 
+  mdbYarn* outYarn)
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkAtom* atom = cell->GetAtom();
+    atom->AliasYarn(outYarn);
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+} // writes ALL yarn slots
+
+// } ----- end attribute methods -----
+
+// } ===== end nsIMdbBlob methods =====
+
+// { ===== begin nsIMdbCell methods =====
+
+// { ----- begin attribute methods -----
+/*virtual*/ mdb_err
+orkinCell::SetColumn(nsIMdbEnv* mev, mdb_column inColumn)
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    ev->StubMethodOnlyError();
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+} 
+
+/*virtual*/ mdb_err
+orkinCell::GetColumn(nsIMdbEnv* mev, mdb_column* outColumn)
+{
+  mdb_err outErr = 0;
+  mdb_column col = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    col = cellObj->mCellObject_Col;
+    outErr = ev->AsErr();
+  }
+  if ( outColumn )
+    *outColumn = col;
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinCell::GetCellInfo(  // all cell metainfo except actual content
+  nsIMdbEnv* mev, 
+  mdb_column* outColumn,           // the column in the containing row
+  mdb_fill*   outBlobFill,         // the size of text content in bytes
+  mdbOid*     outChildOid,         // oid of possible row or table child
+  mdb_bool*   outIsRowChild)  // nonzero if child, and a row child
+// Checking all cell metainfo is a good way to avoid forcing a large cell
+// in to memory when you don't actually want to use the content.
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    ev->StubMethodOnlyError();
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}
+
+
+/*virtual*/ mdb_err
+orkinCell::GetRow(nsIMdbEnv* mev, // parent row for this cell
+  nsIMdbRow** acqRow)
+{
+  mdb_err outErr = 0;
+  nsIMdbRow* outRow = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    morkRowObject* rowObj = cellObj->mCellObject_RowObject;
+    outRow = rowObj->AcquireRowHandle(ev);
+    
+    outErr = ev->AsErr();
+  }
+  if ( acqRow )
+    *acqRow = outRow;
+  return outErr;
+}
+/*virtual*/ mdb_err
+orkinCell::GetPort(nsIMdbEnv* mev, // port containing cell
+  nsIMdbPort** acqPort)
+{
+  mdb_err outErr = 0;
+  nsIMdbPort* outPort = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    morkRow* row = cellObj->mCellObject_Row;
+    if ( row )
+    {
+      morkStore* store = row->GetRowSpaceStore(ev);
+      if ( store )
+        outPort = store->AcquireStoreHandle(ev);
+    }
+    else
+      ev->NilPointerError();
+
+    outErr = ev->AsErr();
+  }
+  if ( acqPort )
+    *acqPort = outPort;
+  return outErr;
+}
+// } ----- end attribute methods -----
+
+// { ----- begin children methods -----
+/*virtual*/ mdb_err
+orkinCell::HasAnyChild( // does cell have a child instead of text?
+  nsIMdbEnv* mev,
+  mdbOid* outOid,  // out id of row or table (or unbound if no child)
+  mdb_bool* outIsRow) // nonzero if child is a row (rather than a table)
+{
+  mdb_err outErr = 0;
+  mdb_bool isRow = morkBool_kFalse;
+  outOid->mOid_Scope = 0;
+  outOid->mOid_Id = morkId_kMinusOne;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    morkAtom* atom = cellObj->GetCellAtom(ev);
+    if ( atom )
+    {
+      isRow = atom->IsRowOid();
+      if ( isRow || atom->IsTableOid() )
+        *outOid = ((morkOidAtom*) atom)->mOidAtom_Oid;
+    }
+      
+    outErr = ev->AsErr();
+  }
+  if ( outIsRow )
+    *outIsRow = isRow;
+    
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinCell::GetAnyChild( // access table of specific attribute
+  nsIMdbEnv* mev, // context
+  nsIMdbRow** acqRow, // child row (or null)
+  nsIMdbTable** acqTable) // child table (or null)
+{
+  mdb_err outErr = 0;
+  nsIMdbRow* outRow = 0;
+  nsIMdbTable* outTable = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    ev->StubMethodOnlyError();
+    outErr = ev->AsErr();
+  }
+  MORK_ASSERT(acqTable);
+  if ( acqTable )
+    *acqTable = outTable;
+  MORK_ASSERT(acqRow);
+  if ( acqRow )
+    *acqRow = outRow;
+    
+  return outErr;
+}
+
+
+/*virtual*/ mdb_err
+orkinCell::SetChildRow( // access table of specific attribute
+  nsIMdbEnv* mev, // context
+  nsIMdbRow* ioRow)
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    ev->StubMethodOnlyError();
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+} // inRow must be bound inside this same db port
+
+/*virtual*/ mdb_err
+orkinCell::GetChildRow( // access row of specific attribute
+  nsIMdbEnv* mev, // context
+  nsIMdbRow** acqRow) // acquire child row (or nil if no child)
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    ev->StubMethodOnlyError();
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}
+
+
+/*virtual*/ mdb_err
+orkinCell::SetChildTable( // access table of specific attribute
+  nsIMdbEnv* mev, // context
+  nsIMdbTable* inTable) // table must be bound inside this same db port
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    ev->StubMethodOnlyError();
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinCell::GetChildTable( // access table of specific attribute
+  nsIMdbEnv* mev, // context
+  nsIMdbTable** acqTable) // acquire child tabdle (or nil if no chil)
+{
+  mdb_err outErr = 0;
+  morkCell* cell = 0;
+  morkEnv* ev = this->CanUseCell(mev, /*inMutable*/ morkBool_kTrue,
+    &outErr, &cell);
+  if ( ev )
+  {
+    morkCellObject* cellObj = (morkCellObject*) mHandle_Object;
+    ev->StubMethodOnlyError();
+    outErr = ev->AsErr();
+  }
+    
+  return outErr;
+}
+// } ----- end children methods -----
+
+// } ===== end nsIMdbCell methods =====
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/orkinCell.h

@@ -0,0 +1,253 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _ORKINCELL_
+#define _ORKINCELL_ 1
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKHANDLE_
+#include "morkHandle.h"
+#endif
+
+#ifndef _MORKCELL_
+#include "morkCell.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkMagic_kCell 0x43656C6C /* ascii 'Cell' */
+
+class orkinCell : public morkHandle, public nsIMdbCell { // nsIMdbBlob
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  // virtual void CloseMorkNode(morkEnv* ev); // morkHandle is fine
+  virtual ~orkinCell(); // morkHandle destructor does everything
+  
+protected: // construction is protected (use the static Make() method)
+  orkinCell(morkEnv* ev, // note morkUsage is always morkUsage_kPool
+    morkHandleFace* ioFace,    // must not be nil, cookie for this handle
+    morkCellObject* ioObject); // must not be nil, the object for this handle
+    
+  // void CloseHandle(morkEnv* ev); // don't need to specialize closing
+
+private: // copying is not allowed
+  orkinCell(const morkHandle& other);
+  orkinCell& operator=(const morkHandle& other);
+
+// public: // dynamic type identification
+  // mork_bool IsHandle() const //
+  // { return IsNode() && mNode_Derived == morkDerived_kHandle; }
+// } ===== end morkNode methods =====
+
+protected: // morkHandle memory management operators
+  void* operator new(size_t inSize, morkPool& ioPool, morkEnv* ev)
+  { return ioPool.NewHandle(ev, inSize); }
+  
+  void* operator new(size_t inSize, morkHandleFace* ioFace)
+  { return ioFace; }
+  
+  void operator delete(void* ioAddress)
+  { morkNode::OnDeleteAssert(ioAddress); }
+  // do NOT call delete on morkHandle instances.  They are collected.
+  
+public: // construction:
+
+  static orkinCell* MakeCell(morkEnv* ev, morkCellObject* ioObject);
+
+public: // utilities:
+
+  // ResyncWithRow() moved to the morkCellObject class:
+  // mork_bool ResyncWithRow(morkEnv* ev); // return ev->Good()
+
+  morkEnv* CanUseCell(nsIMdbEnv* ev, mork_bool inMutable,
+    mdb_err* outErr, morkCell** outCell) const;
+
+public: // type identification
+  mork_bool IsOrkinCell() const
+  { return mHandle_Magic == morkMagic_kCell; }
+
+  mork_bool IsOrkinCellHandle() const
+  { return this->IsHandle() && this->IsOrkinCell(); }
+
+// { ===== begin nsIMdbISupports methods =====
+  virtual mdb_err AddRef(); // add strong ref with no
+  virtual mdb_err Release(); // cut strong ref
+// } ===== end nsIMdbObject methods =====
+
+// { ===== begin nsIMdbObject methods =====
+
+  // { ----- begin attribute methods -----
+  virtual mdb_err IsFrozenMdbObject(nsIMdbEnv* ev, mdb_bool* outIsReadonly);
+  // same as nsIMdbPort::GetIsPortReadonly() when this object is inside a port.
+  // } ----- end attribute methods -----
+
+  // { ----- begin factory methods -----
+  virtual mdb_err GetMdbFactory(nsIMdbEnv* ev, nsIMdbFactory** acqFactory); 
+  // } ----- end factory methods -----
+
+  // { ----- begin ref counting for well-behaved cyclic graphs -----
+  virtual mdb_err GetWeakRefCount(nsIMdbEnv* ev, // weak refs
+    mdb_count* outCount);  
+  virtual mdb_err GetStrongRefCount(nsIMdbEnv* ev, // strong refs
+    mdb_count* outCount);
+
+  virtual mdb_err AddWeakRef(nsIMdbEnv* ev);
+  virtual mdb_err AddStrongRef(nsIMdbEnv* ev);
+
+  virtual mdb_err CutWeakRef(nsIMdbEnv* ev);
+  virtual mdb_err CutStrongRef(nsIMdbEnv* ev);
+  
+  virtual mdb_err CloseMdbObject(nsIMdbEnv* ev); // called at strong refs zero
+  virtual mdb_err IsOpenMdbObject(nsIMdbEnv* ev, mdb_bool* outOpen);
+  // } ----- end ref counting -----
+  
+// } ===== end nsIMdbObject methods =====
+
+// { ===== begin nsIMdbBlob methods =====
+
+  // { ----- begin attribute methods -----
+  virtual mdb_err SetBlob(nsIMdbEnv* ev,
+    nsIMdbBlob* ioBlob); // reads inBlob slots
+  // when inBlob is in the same suite, this might be fastest cell-to-cell
+  
+  virtual mdb_err ClearBlob( // make empty (so content has zero length)
+    nsIMdbEnv* ev);
+  // clearing a yarn is like SetYarn() with empty yarn instance content
+  
+  virtual mdb_err GetBlobFill(nsIMdbEnv* ev,
+    mdb_fill* outFill);  // size of blob 
+  // Same value that would be put into mYarn_Fill, if one called GetYarn()
+  // with a yarn instance that had mYarn_Buf==nil and mYarn_Size==0.
+  
+  virtual mdb_err SetYarn(nsIMdbEnv* ev, 
+    const mdbYarn* inYarn);   // reads from yarn slots
+  // make this text object contain content from the yarn's buffer
+  
+  virtual mdb_err GetYarn(nsIMdbEnv* ev, 
+    mdbYarn* outYarn);  // writes some yarn slots 
+  // copy content into the yarn buffer, and update mYarn_Fill and mYarn_Form
+  
+  virtual mdb_err AliasYarn(nsIMdbEnv* ev, 
+    mdbYarn* outYarn); // writes ALL yarn slots
+  // AliasYarn() reveals sensitive internal text buffer state to the caller
+  // by setting mYarn_Buf to point into the guts of this text implementation.
+  //
+  // The caller must take great care to avoid writing on this space, and to
+  // avoid calling any method that would cause the state of this text object
+  // to change (say by directly or indirectly setting the text to hold more
+  // content that might grow the size of the buffer and free the old buffer).
+  // In particular, callers should scrupulously avoid making calls into the
+  // mdb interface to write any content while using the buffer pointer found
+  // in the returned yarn instance.  Best safe usage involves copying content
+  // into some other kind of external content representation beyond mdb.
+  //
+  // (The original design of this method a week earlier included the concept
+  // of very fast and efficient cooperative locking via a pointer to some lock
+  // member slot.  But let's ignore that complexity in the current design.)
+  //
+  // AliasYarn() is specifically intended as the first step in transferring
+  // content from nsIMdbBlob to a nsString representation, without forcing extra
+  // allocations and/or memory copies. (A standard nsIMdbBlob_AsString() utility
+  // will use AliasYarn() as the first step in setting a nsString instance.)
+  //
+  // This is an alternative to the GetYarn() method, which has copy semantics
+  // only; AliasYarn() relaxes a robust safety principle only for performance
+  // reasons, to accomodate the need for callers to transform text content to
+  // some other canonical representation that would necessitate an additional
+  // copy and transformation when such is incompatible with the mdbYarn format.
+  //
+  // The implementation of AliasYarn() should have extremely little overhead
+  // besides the virtual dispatch to the method implementation, and the code
+  // necessary to populate all the mdbYarn member slots with internal buffer
+  // address and metainformation that describes the buffer content.  Note that
+  // mYarn_Grow must always be set to nil to indicate no resizing is allowed.
+  
+  // } ----- end attribute methods -----
+
+// } ===== end nsIMdbBlob methods =====
+
+// { ===== begin nsIMdbCell methods =====
+
+  // { ----- begin attribute methods -----
+  virtual mdb_err SetColumn(nsIMdbEnv* ev, mdb_column inColumn); 
+  virtual mdb_err GetColumn(nsIMdbEnv* ev, mdb_column* outColumn);
+  
+  virtual mdb_err GetCellInfo(  // all cell metainfo except actual content
+    nsIMdbEnv* ev, 
+    mdb_column* outColumn,           // the column in the containing row
+    mdb_fill*   outBlobFill,         // the size of text content in bytes
+    mdbOid*     outChildOid,         // oid of possible row or table child
+    mdb_bool*   outIsRowChild);  // nonzero if child, and a row child
+
+  // Checking all cell metainfo is a good way to avoid forcing a large cell
+  // in to memory when you don't actually want to use the content.
+  
+  virtual mdb_err GetRow(nsIMdbEnv* ev, // parent row for this cell
+    nsIMdbRow** acqRow);
+  virtual mdb_err GetPort(nsIMdbEnv* ev, // port containing cell
+    nsIMdbPort** acqPort);
+  // } ----- end attribute methods -----
+
+  // { ----- begin children methods -----
+  virtual mdb_err HasAnyChild( // does cell have a child instead of text?
+    nsIMdbEnv* ev,
+    mdbOid* outOid,  // out id of row or table (or unbound if no child)
+    mdb_bool* outIsRow); // nonzero if child is a row (rather than a table)
+
+  virtual mdb_err GetAnyChild( // access table of specific attribute
+    nsIMdbEnv* ev, // context
+    nsIMdbRow** acqRow, // child row (or null)
+    nsIMdbTable** acqTable); // child table (or null)
+
+
+  virtual mdb_err SetChildRow( // access table of specific attribute
+    nsIMdbEnv* ev, // context
+    nsIMdbRow* ioRow); // inRow must be bound inside this same db port
+
+  virtual mdb_err GetChildRow( // access row of specific attribute
+    nsIMdbEnv* ev, // context
+    nsIMdbRow** acqRow); // acquire child row (or nil if no child)
+
+
+  virtual mdb_err SetChildTable( // access table of specific attribute
+    nsIMdbEnv* ev, // context
+    nsIMdbTable* inTable); // table must be bound inside this same db port
+
+  virtual mdb_err GetChildTable( // access table of specific attribute
+    nsIMdbEnv* ev, // context
+    nsIMdbTable** acqTable); // acquire child table (or nil if no child)
+  // } ----- end children methods -----
+
+// } ===== end nsIMdbCell methods =====
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _ORKINCELL_ */

mozilla/db/mork/src/orkinEnv.cpp

@@ -0,0 +1,405 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKHANDLE_
+#include "morkHandle.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+#ifndef _ORKINENV_
+#include "orkinEnv.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+/* public virtual*/
+orkinEnv:: ~orkinEnv() // morkHandle destructor does everything
+{
+}
+
+/*protected non-poly construction*/
+orkinEnv::orkinEnv(morkEnv* ev, // morkUsage is morkUsage_kPool
+    morkHandleFace* ioFace,    // must not be nil, cookie for this handle
+    morkEnv* ioObject)  // must not be nil, the object for this handle
+: morkHandle(ev, ioFace, ioObject, morkMagic_kEnv)
+{
+  // do not modify mNode_Derived; leave it equal to morkDerived_kHandle
+}
+
+
+/*static */ orkinEnv*
+orkinEnv::MakeEnv(morkEnv* ev, morkEnv* ioObject)
+{
+  mork_bool isEnv = ev->IsEnv();
+  MORK_ASSERT(isEnv);
+  if ( isEnv )
+  {
+    morkHandleFace* face = ev->NewHandle(sizeof(orkinEnv));
+    if ( face )
+      return new(face) orkinEnv(ev, face, ioObject);
+    else
+      ev->OutOfMemoryError();
+  }
+    
+  return (orkinEnv*) 0;
+}
+
+morkEnv*
+orkinEnv::CanUseEnv(mork_bool inMutable, mdb_err* outErr) const
+{
+  morkEnv* outEnv = 0;
+  mdb_err err = morkEnv_kBadEnvError;
+  if ( this->IsHandle() )
+  {
+    if ( this->IsOpenNode() )
+    {
+      morkEnv* ev = (morkEnv*) this->mHandle_Object;
+      if ( ev && ev->IsEnv() )
+      {
+        outEnv = ev;
+        err = 0;
+      }
+      else
+      {
+        err = morkEnv_kNonEnvTypeError;
+        MORK_ASSERT(outEnv);
+      }
+    }
+    else
+    {
+      err = morkEnv_kNonOpenNodeError;
+      MORK_ASSERT(outEnv);
+    }
+  }
+  else
+  {
+    err = morkEnv_kNonHandleTypeError;
+    MORK_ASSERT(outEnv);
+  }
+  *outErr = err;
+  return outEnv;
+}
+
+
+// { ===== begin nsIMdbISupports methods =====
+/*virtual*/ mdb_err
+orkinEnv::AddRef() // add strong ref with no
+{
+  morkEnv* ev = mHandle_Env;
+  if ( ev && ev->IsEnv() )
+    return this->Handle_AddStrongRef(ev->AsMdbEnv());
+  else
+    return morkEnv_kNonEnvTypeError;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::Release() // cut strong ref
+{
+  morkEnv* ev = mHandle_Env;
+  if ( ev && ev->IsEnv() )
+    return this->Handle_CutStrongRef(ev->AsMdbEnv());
+  else
+    return morkEnv_kNonEnvTypeError;
+}
+// } ===== end nsIMdbObject methods =====
+
+// { ===== begin nsIMdbObject methods =====
+
+// { ----- begin attribute methods -----
+/*virtual*/ mdb_err
+orkinEnv::IsFrozenMdbObject(nsIMdbEnv* mev, mdb_bool* outIsReadonly)
+{
+  return this->Handle_IsFrozenMdbObject(mev, outIsReadonly);
+}
+// same as nsIMdbPort::GetIsPortReadonly() when this object is inside a port.
+// } ----- end attribute methods -----
+
+// { ----- begin factory methods -----
+/*virtual*/ mdb_err
+orkinEnv::GetMdbFactory(nsIMdbEnv* mev, nsIMdbFactory** acqFactory)
+{
+  return this->Handle_GetMdbFactory(mev, acqFactory);
+} 
+// } ----- end factory methods -----
+
+// { ----- begin ref counting for well-behaved cyclic graphs -----
+/*virtual*/ mdb_err
+orkinEnv::GetWeakRefCount(nsIMdbEnv* mev, // weak refs
+  mdb_count* outCount)
+{
+  return this->Handle_GetWeakRefCount(mev, outCount);
+}  
+/*virtual*/ mdb_err
+orkinEnv::GetStrongRefCount(nsIMdbEnv* mev, // strong refs
+  mdb_count* outCount)
+{
+  return this->Handle_GetStrongRefCount(mev, outCount);
+}
+
+/*virtual*/ mdb_err
+orkinEnv::AddWeakRef(nsIMdbEnv* mev)
+{
+  return this->Handle_AddWeakRef(mev);
+}
+/*virtual*/ mdb_err
+orkinEnv::AddStrongRef(nsIMdbEnv* mev)
+{
+  return this->Handle_AddStrongRef(mev);
+}
+
+/*virtual*/ mdb_err
+orkinEnv::CutWeakRef(nsIMdbEnv* mev)
+{
+  return this->Handle_CutWeakRef(mev);
+}
+/*virtual*/ mdb_err
+orkinEnv::CutStrongRef(nsIMdbEnv* mev)
+{
+  return this->Handle_CutStrongRef(mev);
+}
+
+/*virtual*/ mdb_err
+orkinEnv::CloseMdbObject(nsIMdbEnv* mev)
+{
+  return this->Handle_CloseMdbObject(mev);
+}
+
+/*virtual*/ mdb_err
+orkinEnv::IsOpenMdbObject(nsIMdbEnv* mev, mdb_bool* outOpen)
+{
+  return this->Handle_IsOpenMdbObject(mev, outOpen);
+}
+// } ----- end ref counting -----
+
+// } ===== end nsIMdbObject methods =====
+
+// { ===== begin nsIMdbEnv methods =====
+
+// { ----- begin attribute methods -----
+/*virtual*/ mdb_err
+orkinEnv::GetErrorCount(mdb_count* outCount,
+  mdb_bool* outShouldAbort)
+{
+  mdb_err outErr = 0;
+  mdb_count count = 1;
+  mork_bool shouldAbort = morkBool_kFalse;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    count = (mdb_count) ev->mEnv_ErrorCount;
+    shouldAbort = ev->mEnv_ShouldAbort;
+  }
+  if ( outCount )
+    *outCount = count;
+  if ( outShouldAbort )
+    *outShouldAbort = shouldAbort;
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::GetWarningCount(mdb_count* outCount,
+  mdb_bool* outShouldAbort)
+{
+  mdb_err outErr = 0;
+  mdb_count count = 1;
+  mork_bool shouldAbort = morkBool_kFalse;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    count = (mdb_count) ev->mEnv_WarningCount;
+    shouldAbort = ev->mEnv_ShouldAbort;
+  }
+  if ( outCount )
+    *outCount = count;
+  if ( outShouldAbort )
+    *outShouldAbort = shouldAbort;
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::GetDoTrace(mdb_bool* outDoTrace)
+{
+  mdb_err outErr = 0;
+  mork_bool doTrace = morkBool_kFalse;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    doTrace = ev->mEnv_DoTrace;
+  }
+  if ( outDoTrace )
+    *outDoTrace = doTrace;
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::SetDoTrace(mdb_bool inDoTrace)
+{
+  mdb_err outErr = 0;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kTrue, &outErr);
+  if ( ev )
+  {
+    ev->mEnv_DoTrace = inDoTrace;
+  }
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::GetAutoClear(mdb_bool* outAutoClear)
+{
+  mdb_err outErr = 0;
+  mork_bool autoClear = morkBool_kFalse;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    autoClear = ev->DoAutoClear();
+  }
+  if ( outAutoClear )
+    *outAutoClear = autoClear;
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::SetAutoClear(mdb_bool inAutoClear)
+{
+  mdb_err outErr = 0;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kTrue, &outErr);
+  if ( ev )
+  {
+    if ( inAutoClear )
+      ev->EnableAutoClear();
+    else
+      ev->DisableAutoClear();
+  }
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::GetErrorHook(nsIMdbErrorHook** acqErrorHook)
+{
+  mdb_err outErr = 0;
+  nsIMdbErrorHook* outErrorHook = 0;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    outErrorHook = ev->mEnv_ErrorHook;
+  }
+  if ( acqErrorHook )
+    *acqErrorHook = outErrorHook;
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::SetErrorHook(
+  nsIMdbErrorHook* ioErrorHook) // becomes referenced
+{
+  mdb_err outErr = 0;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kTrue, &outErr);
+  if ( ev )
+  {
+    ev->mEnv_ErrorHook = ioErrorHook;
+  }
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::GetHeap(nsIMdbHeap** acqHeap)
+{
+  mdb_err outErr = 0;
+  nsIMdbHeap* outHeap = 0;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kFalse, &outErr);
+  if ( ev )
+  {
+    nsIMdbHeap* heap = ev->mEnv_Heap;
+    if ( heap && heap->AddStrongRef(this) == 0 )
+      outHeap = heap;
+  }
+  if ( acqHeap )
+    *acqHeap = outHeap;
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::SetHeap(
+  nsIMdbHeap* ioHeap) // becomes referenced
+{
+  mdb_err outErr = 0;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kTrue, &outErr);
+  if ( ev )
+  {
+    nsIMdbHeap_SlotStrongHeap(ioHeap, ev, &ev->mEnv_Heap);
+  }
+  return outErr;
+}
+// } ----- end attribute methods -----
+
+/*virtual*/ mdb_err
+orkinEnv::ClearErrors() // clear errors beore re-entering db API
+{
+  mdb_err outErr = 0;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kTrue, &outErr);
+  if ( ev )
+  {
+    ev->mEnv_ErrorCount = 0;
+    ev->mEnv_ErrorCode = 0;
+    ev->mEnv_ShouldAbort = morkBool_kFalse;
+  }
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::ClearWarnings() // clear warning
+{
+  mdb_err outErr = 0;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kTrue, &outErr);
+  if ( ev )
+  {
+    ev->mEnv_WarningCount = 0;
+  }
+  return outErr;
+}
+
+/*virtual*/ mdb_err
+orkinEnv::ClearErrorsAndWarnings() // clear both errors & warnings
+{
+  mdb_err outErr = 0;
+  morkEnv* ev = this->CanUseEnv(/*inMutable*/ morkBool_kTrue, &outErr);
+  if ( ev )
+  {
+    ev->ClearMorkErrorsAndWarnings();
+  }
+  return outErr;
+}
+// } ===== end nsIMdbEnv methods =====
+
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789

mozilla/db/mork/src/orkinEnv.h

@@ -0,0 +1,164 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _ORKINENV_
+#define _ORKINENV_ 1
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _MORKNODE_
+#include "morkNode.h"
+#endif
+
+#ifndef _MORKHANDLE_
+#include "morkHandle.h"
+#endif
+
+#ifndef _MORKEnv_
+#include "morkEnv.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#define morkMagic_kEnv 0x456E7669 /* ascii 'Envi' */
+
+/*| orkinEnv:
+|*/
+class orkinEnv : public morkHandle, public nsIMdbEnv { // nsIMdbObject
+
+// { ===== begin morkNode interface =====
+public: // morkNode virtual methods
+  // virtual void CloseMorkNode(morkEnv* ev); // morkHandle is fine
+  virtual ~orkinEnv(); // morkHandle destructor does everything
+  
+protected: // construction is protected (use the static Make() method)
+  orkinEnv(morkEnv* ev, // note morkUsage is always morkUsage_kPool
+    morkHandleFace* ioFace,    // must not be nil, cookie for this handle
+    morkEnv* ioObject); // must not be nil, the object for this handle
+    
+  // void CloseHandle(morkEnv* ev); // don't need to specialize closing
+
+private: // copying is not allowed
+  orkinEnv(const morkHandle& other);
+  orkinEnv& operator=(const morkHandle& other);
+
+// public: // dynamic type identification
+  // mork_bool IsHandle() const //
+  // { return IsNode() && mNode_Derived == morkDerived_kHandle; }
+// } ===== end morkNode methods =====
+
+protected: // morkHandle memory management operators
+  void* operator new(size_t inSize, morkPool& ioPool, morkEnv* ev)
+  { return ioPool.NewHandle(ev, inSize); }
+  
+  void* operator new(size_t inSize, morkHandleFace* ioFace)
+  { return ioFace; }
+  
+  void operator delete(void* ioAddress)
+  { morkNode::OnDeleteAssert(ioAddress); }
+  // do NOT call delete on morkHandle instances.  They are collected.
+  
+public: // construction:
+
+  static orkinEnv* MakeEnv(morkEnv* ev, morkEnv* ioObject);
+
+public: // utilities:
+
+  morkEnv* CanUseEnv(mork_bool inMutable, mdb_err* outErr) const;
+
+public: // type identification
+  mork_bool IsOrkinEnv() const
+  { return mHandle_Magic == morkMagic_kEnv; }
+
+  mork_bool IsOrkinEnvHandle() const
+  { return this->IsHandle() && this->IsOrkinEnv(); }
+
+public:
+
+// { ===== begin nsIMdbISupports methods =====
+  virtual mdb_err AddRef(); // add strong ref with no
+  virtual mdb_err Release(); // cut strong ref
+// } ===== end nsIMdbObject methods =====
+
+// { ===== begin nsIMdbObject methods =====
+
+  // { ----- begin attribute methods -----
+  virtual mdb_err IsFrozenMdbObject(nsIMdbEnv* ev, mdb_bool* outIsReadonly);
+  // same as nsIMdbPort::GetIsPortReadonly() when this object is inside a port.
+  // } ----- end attribute methods -----
+
+  // { ----- begin factory methods -----
+  virtual mdb_err GetMdbFactory(nsIMdbEnv* ev, nsIMdbFactory** acqFactory); 
+  // } ----- end factory methods -----
+
+  // { ----- begin ref counting for well-behaved cyclic graphs -----
+  virtual mdb_err GetWeakRefCount(nsIMdbEnv* ev, // weak refs
+    mdb_count* outCount);  
+  virtual mdb_err GetStrongRefCount(nsIMdbEnv* ev, // strong refs
+    mdb_count* outCount);
+
+  virtual mdb_err AddWeakRef(nsIMdbEnv* ev);
+  virtual mdb_err AddStrongRef(nsIMdbEnv* ev);
+
+  virtual mdb_err CutWeakRef(nsIMdbEnv* ev);
+  virtual mdb_err CutStrongRef(nsIMdbEnv* ev);
+  
+  virtual mdb_err CloseMdbObject(nsIMdbEnv* ev); // called at strong refs zero
+  virtual mdb_err IsOpenMdbObject(nsIMdbEnv* ev, mdb_bool* outOpen);
+  // } ----- end ref counting -----
+  
+// } ===== end nsIMdbObject methods =====
+
+// { ===== begin nsIMdbEnv methods =====
+
+  // { ----- begin attribute methods -----
+  virtual mdb_err GetErrorCount(mdb_count* outCount,
+    mdb_bool* outShouldAbort);
+  virtual mdb_err GetWarningCount(mdb_count* outCount,
+    mdb_bool* outShouldAbort);
+  
+  virtual mdb_err GetDoTrace(mdb_bool* outDoTrace);
+  virtual mdb_err SetDoTrace(mdb_bool inDoTrace);
+  
+  virtual mdb_err GetAutoClear(mdb_bool* outAutoClear);
+  virtual mdb_err SetAutoClear(mdb_bool inAutoClear);
+  
+  virtual mdb_err GetErrorHook(nsIMdbErrorHook** acqErrorHook);
+  virtual mdb_err SetErrorHook(
+    nsIMdbErrorHook* ioErrorHook); // becomes referenced
+  
+  virtual mdb_err GetHeap(nsIMdbHeap** acqHeap);
+  virtual mdb_err SetHeap(
+    nsIMdbHeap* ioHeap); // becomes referenced
+  // } ----- end attribute methods -----
+  
+  virtual mdb_err ClearErrors(); // clear errors beore re-entering db API
+  virtual mdb_err ClearWarnings(); // clear warnings
+  virtual mdb_err ClearErrorsAndWarnings(); // clear both errors & warnings
+// } ===== end nsIMdbEnv methods =====
+};
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+#endif /* _ORKINENV_ */

mozilla/db/mork/src/orkinErrorHook.cpp

@@ -0,0 +1,91 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- 
+ * 
+ * The contents of this file are subject to the Netscape Public License 
+ * Version 1.0 (the "NPL"); you may not use this file except in 
+ * compliance with the NPL.  You may obtain a copy of the NPL at 
+ * http://www.mozilla.org/NPL/ 
+ * 
+ * Software distributed under the NPL is distributed on an "AS IS" basis, 
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL 
+ * for the specific language governing rights and limitations under the 
+ * NPL. 
+ * 
+ * The Initial Developer of this code under the NPL is Netscape 
+ * Communications Corporation.  Portions created by Netscape are 
+ * Copyright (C) 1999 Netscape Communications Corporation.  All Rights 
+ * Reserved. 
+ */
+
+#ifndef _MDB_
+#include "mdb.h"
+#endif
+
+#ifndef _MORK_
+#include "mork.h"
+#endif
+
+#ifndef _ORKINERRORHOOK_
+#include "orkinErrorHook.h"
+#endif
+
+#ifndef _MORKENV_
+#include "morkEnv.h"
+#endif
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
+
+
+orkinHeap::orkinHeap() // does nothing
+{
+}
+
+/*virtual*/
+orkinHeap::~orkinHeap() // does nothing
+{
+}
+
+// { ===== begin nsIMdbHeap methods =====
+/*virtual*/ mdb_err
+orkinHeap::Alloc(nsIMdbEnv* ev, // allocate a piece of memory
+  mdb_size inSize,   // requested size of new memory block 
+  void** outBlock)  // memory block of inSize bytes, or nil
+{
+  mdb_err outErr = 0;
+  void* block = new char[ inSize ];
+  if ( !block )
+    outErr = morkEnv_kOutOfMemoryError;
+    
+  MORK_ASSERT(outBlock);
+  if ( outBlock )
+    *outBlock = block;
+  return outErr;
+}
+  
+/*virtual*/ mdb_err
+orkinHeap::Free(nsIMdbEnv* ev, // free block allocated earlier by Alloc()
+  void* inBlock)
+{
+  MORK_ASSERT(inBlock);
+  if ( inBlock )
+    delete [] inBlock;
+    
+  return 0;
+}
+
+/*virtual*/ mdb_err
+orkinHeap::AddStrongRef(nsIMdbEnv* ev) // does nothing
+{
+  MORK_USED_1(ev);
+  return 0;
+}
+
+/*virtual*/ mdb_err
+orkinHeap::CutStrongRef(nsIMdbEnv* ev) // does nothing
+{
+  MORK_USED_1(ev);
+  return 0;
+}
+
+// } ===== end nsIMdbHeap methods =====
+
+//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789