Files
Mozilla/mozilla/mailnews/db/msgdb/public/nsMsgDatabase.h
bienvenu%netscape.com 3a64981605 fix threading performance with header cache, r=mscott,a=phil 28233
git-svn-id: svn://10.0.0.236/trunk@61951 18797224-902f-48f8-a5cc-f745e15eee43
2000-03-01 04:15:12 +00:00

363 lines
15 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (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.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef _nsMsgDatabase_H_
#define _nsMsgDatabase_H_
#include "nsIMsgDatabase.h"
#include "nsMsgHdr.h"
#include "nsVoidArray.h"
#include "nsString.h"
#include "nsFileSpec.h"
#include "nsIDBChangeListener.h"
#include "nsIDBChangeAnnouncer.h"
#include "nsMsgMessageFlags.h"
#include "nsISupportsArray.h"
#include "nsDBFolderInfo.h"
#include "nsICollation.h"
#include "nsIMimeConverter.h"
#include "nsCOMPtr.h"
#include "nsHashtable.h"
class ListContext;
class nsMsgKeyArray;
class nsMsgKeySet;
class nsMsgThread;
class nsIMsgThread;
class nsIDBFolderInfo;
class nsIMsgHeaderParser;
class nsMsgDatabase : public nsIMsgDatabase
{
public:
NS_DECL_ISUPPORTS
//////////////////////////////////////////////////////////////////////////////
// nsIDBChangeAnnouncer methods:
NS_IMETHOD AddListener(nsIDBChangeListener *listener);
NS_IMETHOD RemoveListener(nsIDBChangeListener *listener);
NS_IMETHOD NotifyKeyChangeAll(nsMsgKey keyChanged, PRUint32 aOldFlags, PRUint32 aNewFlags,
nsIDBChangeListener *instigator);
NS_IMETHOD NotifyKeyAddedAll(nsMsgKey keyAdded, nsMsgKey parentKey, PRInt32 flags,
nsIDBChangeListener *instigator);
NS_IMETHOD NotifyKeyDeletedAll(nsMsgKey keyDeleted, nsMsgKey parentKey, PRInt32 flags,
nsIDBChangeListener *instigator);
NS_IMETHOD NotifyParentChangedAll(nsMsgKey keyReparented, nsMsgKey oldParent, nsMsgKey newParent,
nsIDBChangeListener *instigator);
NS_IMETHOD NotifyReadChanged(nsIDBChangeListener *instigator);
NS_IMETHOD NotifyAnnouncerGoingAway(void);
//////////////////////////////////////////////////////////////////////////////
// nsIMsgDatabase methods:
NS_IMETHOD Open(nsIFileSpec *folderName, PRBool create, PRBool upgrading, nsIMsgDatabase** pMessageDB);
NS_IMETHOD Close(PRBool forceCommit);
// argh, these two shouldn't be Interface methods, but I can't diddle the interfaces
// until the idl works on windows. grumble grumble.
NS_IMETHOD OpenMDB(const char *dbName, PRBool create);
NS_IMETHOD CloseMDB(PRBool commit);
NS_IMETHOD Commit(nsMsgDBCommit commitType);
// Force closed is evil, and we should see if we can do without it.
// In 4.x, it was mainly used to remove corrupted databases.
NS_IMETHOD ForceClosed(void);
// get a message header for the given key. Caller must release()!
NS_IMETHOD GetMsgHdrForKey(nsMsgKey key, nsIMsgDBHdr **msg);
//Returns whether or not this database contains the given key
NS_IMETHOD ContainsKey(nsMsgKey key, PRBool *containsKey);
// Must call AddNewHdrToDB after creating. The idea is that you create
// a new header, fill in its properties, and then call AddNewHdrToDB.
// AddNewHdrToDB will send notifications to any listeners.
NS_IMETHOD CreateNewHdr(nsMsgKey key, nsIMsgDBHdr **newHdr);
virtual nsresult CreateMsgHdr(nsIMdbRow* hdrRow, nsMsgKey key, nsIMsgDBHdr **result);
NS_IMETHOD CopyHdrFromExistingHdr(nsMsgKey key, nsIMsgDBHdr *existingHdr, nsIMsgDBHdr **newHdr);
NS_IMETHOD AddNewHdrToDB(nsIMsgDBHdr *newHdr, PRBool notify);
NS_IMETHOD ListAllKeys(nsMsgKeyArray &outputKeys);
NS_IMETHOD EnumerateMessages(nsISimpleEnumerator* *result);
NS_IMETHOD EnumerateUnreadMessages(nsISimpleEnumerator* *result);
NS_IMETHOD EnumerateThreads(nsISimpleEnumerator* *result);
// this might just be for debugging - we'll see.
nsresult ListAllThreads(nsMsgKeyArray *threadIds);
// helpers for user command functions like delete, mark read, etc.
NS_IMETHOD MarkHdrRead(nsIMsgDBHdr *msgHdr, PRBool bRead,
nsIDBChangeListener *instigator);
NS_IMETHOD MarkHdrReplied(nsIMsgDBHdr *msgHdr, PRBool bReplied,
nsIDBChangeListener *instigator);
NS_IMETHOD MarkHdrMarked(nsIMsgDBHdr *msgHdr, PRBool mark,
nsIDBChangeListener *instigator);
// MDN support
NS_IMETHOD MarkMDNNeeded(nsMsgKey key, PRBool bNeeded,
nsIDBChangeListener *instigator);
// MarkMDNneeded only used when mail server is a POP3 server
// or when the IMAP server does not support user defined
// PERMANENTFLAGS
NS_IMETHOD IsMDNNeeded(nsMsgKey key, PRBool *isNeeded);
NS_IMETHOD MarkMDNSent(nsMsgKey key, PRBool bNeeded,
nsIDBChangeListener *instigator);
NS_IMETHOD IsMDNSent(nsMsgKey key, PRBool *isSent);
// methods to get and set docsets for ids.
NS_IMETHOD MarkRead(nsMsgKey key, PRBool bRead,
nsIDBChangeListener *instigator);
NS_IMETHOD MarkReplied(nsMsgKey key, PRBool bReplied,
nsIDBChangeListener *instigator);
NS_IMETHOD MarkForwarded(nsMsgKey key, PRBool bForwarded,
nsIDBChangeListener *instigator);
NS_IMETHOD MarkHasAttachments(nsMsgKey key, PRBool bHasAttachments,
nsIDBChangeListener *instigator);
NS_IMETHOD MarkThreadRead(nsIMsgThread *thread, nsIDBChangeListener *instigator, nsMsgKeyArray *thoseMarked);
NS_IMETHOD MarkThreadIgnored(nsIMsgThread *thread, nsMsgKey threadKey, PRBool bIgnored,
nsIDBChangeListener *instigator);
NS_IMETHOD MarkThreadWatched(nsIMsgThread *thread, nsMsgKey threadKey, PRBool bWatched,
nsIDBChangeListener *instigator);
NS_IMETHOD IsRead(nsMsgKey key, PRBool *pRead);
NS_IMETHOD IsIgnored(nsMsgKey key, PRBool *pIgnored);
NS_IMETHOD IsMarked(nsMsgKey key, PRBool *pMarked);
NS_IMETHOD HasAttachments(nsMsgKey key, PRBool *pHasThem);
NS_IMETHOD MarkAllRead(nsMsgKeyArray *thoseMarked);
NS_IMETHOD MarkReadByDate (PRTime te, PRTime endDate, nsMsgKeyArray *markedIds);
NS_IMETHOD DeleteMessages(nsMsgKeyArray* nsMsgKeys, nsIDBChangeListener *instigator);
NS_IMETHOD DeleteMessage(nsMsgKey key,
nsIDBChangeListener *instigator,
PRBool commit);
NS_IMETHOD DeleteHeader(nsIMsgDBHdr *msgHdr, nsIDBChangeListener *instigator,
PRBool commit, PRBool notify);
NS_IMETHOD UndoDelete(nsIMsgDBHdr *msgHdr);
NS_IMETHOD MarkLater(nsMsgKey key, PRTime until);
NS_IMETHOD MarkMarked(nsMsgKey key, PRBool mark,
nsIDBChangeListener *instigator);
NS_IMETHOD MarkOffline(nsMsgKey key, PRBool offline,
nsIDBChangeListener *instigator);
// returns NS_OK on success, NS_COMFALSE on failure
NS_IMETHOD AllMsgKeysImapDeleted(nsMsgKeyArray *keys);
NS_IMETHOD MarkImapDeleted(nsMsgKey key, PRBool deleted,
nsIDBChangeListener *instigator);
NS_IMETHOD GetFirstNew(nsMsgKey *result);
NS_IMETHOD HasNew(PRBool *_retval);
NS_IMETHOD ClearNewList(PRBool notify);
NS_IMETHOD AddToNewList(nsMsgKey key);
// used mainly to force the timestamp of a local mail folder db to
// match the time stamp of the corresponding berkeley mail folder,
// but also useful to tell the summary to mark itself invalid
NS_IMETHOD SetSummaryValid(PRBool valid);
// offline operations
NS_IMETHOD ListAllOfflineOpIds(nsMsgKeyArray *offlineOpIds);
NS_IMETHOD ListAllOfflineDeletes(nsMsgKeyArray *offlineDeletes);
NS_IMETHOD GetThreadForMsgKey(nsMsgKey msgKey, nsIMsgThread **result);
NS_IMETHOD GetThreadContainingMsgHdr(nsIMsgDBHdr *msgHdr, nsIMsgThread **result) ;
NS_IMETHOD GetHighWaterArticleNum(nsMsgKey *key);
NS_IMETHOD GetLowWaterArticleNum(nsMsgKey *key);
//////////////////////////////////////////////////////////////////////////////
// nsMsgDatabase methods:
nsMsgDatabase();
virtual ~nsMsgDatabase();
NS_IMETHOD IsHeaderRead(nsIMsgDBHdr *hdr, PRBool *pRead);
static nsIMdbFactory *GetMDBFactory();
NS_IMETHOD GetDBFolderInfo(nsIDBFolderInfo **result);
nsIMdbEnv *GetEnv() {return m_mdbEnv;}
nsIMdbStore *GetStore() {return m_mdbStore;}
virtual PRUint32 GetCurVersion();
nsIMsgHeaderParser *GetHeaderParser();
nsresult GetCollationKeyGenerator();
static nsMsgDatabase* FindInCache(nsFileSpec &dbName);
//helper function to fill in nsStrings from hdr row cell contents.
nsresult RowCellColumnTonsString(nsIMdbRow *row, mdb_token columnToken, nsString &resultStr);
nsresult RowCellColumnTonsCString(nsIMdbRow *row, mdb_token columnToken, nsCString &resultStr);
nsresult RowCellColumnToUInt32(nsIMdbRow *row, mdb_token columnToken, PRUint32 *uint32Result, PRUint32 defaultValue = 0);
nsresult RowCellColumnToUInt32(nsIMdbRow *row, mdb_token columnToken, PRUint32 &uint32Result, PRUint32 defaultValue = 0);
nsresult RowCellColumnToMime2DecodedString(nsIMdbRow *row, mdb_token columnToken, nsString &resultStr);
nsresult RowCellColumnToCollationKey(nsIMdbRow *row, mdb_token columnToken, nsString &resultStr);
// helper functions to put values in cells for the passed-in row
nsresult UInt32ToRowCellColumn(nsIMdbRow *row, mdb_token columnToken, PRUint32 value);
nsresult CharPtrToRowCellColumn(nsIMdbRow *row, mdb_token columnToken, const char *charPtr);
nsresult RowCellColumnToCharPtr(nsIMdbRow *row, mdb_token columnToken, char **result);
nsresult CreateCollationKey(nsString &sourceString, nsString &resultString);
// helper functions to copy an nsString to a yarn, int32 to yarn, and vice versa.
static struct mdbYarn *nsStringToYarn(struct mdbYarn *yarn, nsString *str);
static struct mdbYarn *UInt32ToYarn(struct mdbYarn *yarn, PRUint32 i);
static void YarnTonsString(struct mdbYarn *yarn, nsString *str);
static void YarnTonsCString(struct mdbYarn *yarn, nsCString *str);
static void YarnToUInt32(struct mdbYarn *yarn, PRUint32 *i);
// helper functions to convert a 64bits PRTime into a 32bits value (compatible time_t) and vice versa.
static void PRTime2Seconds(PRTime prTime, PRUint32 *seconds);
static void Seconds2PRTime(PRUint32 seconds, PRTime *prTime);
static void CleanupCache();
#ifdef DEBUG
static int GetNumInCache(void) {return(GetDBCache()->Count());}
static void DumpCache();
virtual nsresult DumpContents();
nsresult DumpThread(nsMsgKey threadId);
nsresult DumpMsgChildren(nsIMsgDBHdr *msgHdr);
#endif
friend class nsMsgHdr; // use this to get access to cached tokens for hdr fields
friend class nsMsgThread; // use this to get access to cached tokens for hdr fields
friend class nsMsgDBEnumerator;
friend class nsMsgDBThreadEnumerator;
protected:
// prefs stuff - in future, we might want to cache the prefs interface
nsresult GetBoolPref(const char *prefName, PRBool *result);
// retrieval methods
nsIMsgThread * GetThreadForReference(nsCString &msgID, nsIMsgDBHdr **pMsgHdr);
nsIMsgThread * GetThreadForSubject(nsCString &subject);
nsIMsgThread * GetThreadForThreadId(nsMsgKey threadId);
nsMsgHdr * GetMsgHdrForReference(nsCString &reference);
nsIMsgDBHdr * GetMsgHdrForMessageID(nsCString &msgID);
nsIMsgDBHdr * GetMsgHdrForSubject(nsCString &msgID);
// threading interfaces
virtual nsresult CreateNewThread(nsMsgKey key, const char *subject, nsMsgThread **newThread);
virtual PRBool ThreadBySubjectWithoutRe();
virtual nsresult ThreadNewHdr(nsMsgHdr* hdr, PRBool &newThread);
virtual nsresult AddNewThread(nsMsgHdr *msgHdr);
virtual nsresult AddToThread(nsMsgHdr *newHdr, nsIMsgThread *thread, nsIMsgDBHdr *pMsgHdr, PRBool threadInThread);
// open db cache
static void AddToCache(nsMsgDatabase* pMessageDB)
{GetDBCache()->AppendElement(pMessageDB);}
static void RemoveFromCache(nsMsgDatabase* pMessageDB);
static int FindInCache(nsMsgDatabase* pMessageDB);
PRBool MatchDbName(nsFileSpec &dbName); // returns TRUE if they match
#if defined(XP_PC) || defined(XP_MAC) // this should go away when we can provide our own file stream to MDB/Mork
static void UnixToNative(char*& ioPath);
#endif
#if defined(XP_MAC)
static void NativeToUnix(char*& ioPath);
#endif
// Flag handling routines
virtual nsresult SetKeyFlag(nsMsgKey key, PRBool set, PRUint32 flag,
nsIDBChangeListener *instigator = NULL);
virtual nsresult SetMsgHdrFlag(nsIMsgDBHdr *msgHdr, PRBool set, PRUint32 flag,
nsIDBChangeListener *instigator);
virtual PRBool SetHdrFlag(nsIMsgDBHdr *, PRBool bSet, MsgFlags flag);
virtual PRBool SetHdrReadFlag(nsIMsgDBHdr *, PRBool pRead);
virtual PRUint32 GetStatusFlags(nsIMsgDBHdr *msgHdr, PRUint32 origFlags);
// helper function which doesn't involve thread object
NS_IMETHOD MarkHdrReadInDB(nsIMsgDBHdr *msgHdr, PRBool bRead,
nsIDBChangeListener *instigator);
virtual nsresult RemoveHeaderFromDB(nsMsgHdr *msgHdr);
static nsVoidArray/*<nsMsgDatabase>*/* GetDBCache();
static nsVoidArray/*<nsMsgDatabase>*/* m_dbCache;
nsCOMPtr <nsICollation> m_collationKeyGenerator;
nsCOMPtr <nsIMimeConverter> m_mimeConverter;
// mdb bookkeeping stuff
nsresult InitExistingDB();
nsresult InitNewDB();
nsresult InitMDBInfo();
nsDBFolderInfo *m_dbFolderInfo;
nsIMdbEnv *m_mdbEnv; // to be used in all the db calls.
nsIMdbStore *m_mdbStore;
nsIMdbTable *m_mdbAllMsgHeadersTable;
nsFileSpec m_dbName;
nsMsgKeySet *m_newSet; // new messages since last open.
PRBool m_mdbTokensInitialized;
nsVoidArray/*<nsIDBChangeListener>*/ *m_ChangeListeners;
mdb_token m_hdrRowScopeToken;
mdb_token m_threadRowScopeToken;
mdb_token m_hdrTableKindToken;
mdb_token m_threadTableKindToken;
mdb_token m_allThreadsTableKindToken;
mdb_token m_subjectColumnToken;
mdb_token m_senderColumnToken;
mdb_token m_messageIdColumnToken;
mdb_token m_referencesColumnToken;
mdb_token m_recipientsColumnToken;
mdb_token m_dateColumnToken;
mdb_token m_messageSizeColumnToken;
mdb_token m_flagsColumnToken;
mdb_token m_priorityColumnToken;
mdb_token m_statusOffsetColumnToken;
mdb_token m_numLinesColumnToken;
mdb_token m_ccListColumnToken;
mdb_token m_threadFlagsColumnToken;
mdb_token m_threadIdColumnToken;
mdb_token m_threadChildrenColumnToken;
mdb_token m_threadUnreadChildrenColumnToken;
mdb_token m_messageThreadIdColumnToken;
mdb_token m_threadSubjectColumnToken;
mdb_token m_numReferencesColumnToken;
mdb_token m_messageCharSetColumnToken;
mdb_token m_threadParentColumnToken;
mdb_token m_threadRootKeyColumnToken;
nsIMsgHeaderParser *m_HeaderParser;
// header caching stuff
nsresult GetHdrFromCache(nsMsgKey key, nsIMsgDBHdr* *result);
nsresult AddHdrToCache(nsIMsgDBHdr *hdr, nsMsgKey key);
nsresult ClearHdrCache();
nsresult RemoveHdrFromCache(nsIMsgDBHdr *hdr, nsMsgKey key);
nsSupportsHashtable *m_cachedHeaders;
PRBool m_bCacheHeaders;
};
#endif