From 252ca95cfc8ca331cb8b1db2dda793b725f8c72f Mon Sep 17 00:00:00 2001
From: "kin%netscape.com"
 <kin%netscape.com@18797224-902f-48f8-a5cc-f745e15eee43>
Date: Thu, 3 Jun 1999 15:26:48 +0000
Subject: [PATCH] Enabled LOCK/UNLOCK macros.

git-svn-id: svn://10.0.0.236/trunk@33524 18797224-902f-48f8-a5cc-f745e15eee43
---
 mozilla/editor/txmgr/src/makefile.win         |  8 ++--
 .../editor/txmgr/src/nsTransactionManager.cpp | 46 ++++++++++++++++---
 .../editor/txmgr/src/nsTransactionManager.h   |  6 +++
 3 files changed, 50 insertions(+), 10 deletions(-)

diff --git a/mozilla/editor/txmgr/src/makefile.win b/mozilla/editor/txmgr/src/makefile.win
index 277afb56718..3169554ba8a 100644
--- a/mozilla/editor/txmgr/src/makefile.win
+++ b/mozilla/editor/txmgr/src/makefile.win
@@ -43,9 +43,6 @@ LINCS=-I$(PUBLIC)\xpcom \
       -I$(PUBLIC)\base \
       -I$(PUBLIC)\raptor
 
-LLIBS=					\
- $(DIST)\lib\xpcom.lib
-
 MAKE_OBJ_TYPE = DLL
 DLLNAME = txmgr
 DLL=.\$(OBJDIR)\$(DLLNAME).dll
@@ -59,7 +56,10 @@ LCFLAGS = \
         $(NULL)
 
 # These are the libraries we need to link with to create the dll
-LLIBS=$(DIST)\lib\xpcom.lib
+LLIBS =                     \
+      $(DIST)\lib\xpcom.lib \
+      $(LIBNSPR)            \
+      $(NULL)
 
 !if "$(MOZ_BITS)"=="32" && defined(MOZ_DEBUG) && defined(GLOWCODE)
 LLIBS=$(LLIBS) $(GLOWDIR)\glowcode.lib
diff --git a/mozilla/editor/txmgr/src/nsTransactionManager.cpp b/mozilla/editor/txmgr/src/nsTransactionManager.cpp
index 4e428927902..9004d2a4119 100644
--- a/mozilla/editor/txmgr/src/nsTransactionManager.cpp
+++ b/mozilla/editor/txmgr/src/nsTransactionManager.cpp
@@ -27,8 +27,8 @@
 
 #include "nsCOMPtr.h"
 
-#define LOCK_TX_MANAGER(mgr)
-#define UNLOCK_TX_MANAGER(mgr)
+#define LOCK_TX_MANAGER(mgr)    (mgr)->Lock()
+#define UNLOCK_TX_MANAGER(mgr)  (mgr)->Unlock()
 
 static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
 static NS_DEFINE_IID(kITransactionManagerIID, NS_ITRANSACTIONMANAGER_IID);
@@ -37,6 +37,8 @@ nsTransactionManager::nsTransactionManager(PRInt32 aMaxTransactionCount)
   : mMaxTransactionCount(aMaxTransactionCount), mListeners(0)
 {
   mRefCnt = 0;
+
+  mMonitor = ::PR_NewMonitor();
 }
 
 nsTransactionManager::~nsTransactionManager()
@@ -55,6 +57,12 @@ nsTransactionManager::~nsTransactionManager()
     delete mListeners;
     mListeners = 0;
   }
+
+  if (mMonitor)
+  {
+    ::PR_DestroyMonitor(mMonitor);
+    mMonitor = 0;
+  }
 }
 
 #ifdef DEBUG_TXMGR_REFCNT
@@ -652,8 +660,13 @@ nsTransactionManager::RemoveListener(nsITransactionListener *aListener)
   if (!mListeners)
     return NS_ERROR_FAILURE;
 
+  LOCK_TX_MANAGER(this);
+
   if (!mListeners->RemoveElement((void *)aListener))
+  {
+    UNLOCK_TX_MANAGER(this);
     return NS_ERROR_FAILURE;
+  }
 
   NS_IF_RELEASE(aListener);
 
@@ -663,6 +676,8 @@ nsTransactionManager::RemoveListener(nsITransactionListener *aListener)
     mListeners = 0;
   }
 
+  UNLOCK_TX_MANAGER(this);
+
   return NS_OK;
 }
 
@@ -1127,14 +1142,15 @@ nsTransactionManager::EndTransaction()
       if (result != NS_COMFALSE) {
         result = topTransaction->Merge(&didMerge, tint);
 
+        nsresult result2 = DidMergeNotify(topTransaction, tint, didMerge, result);
+
+        if (NS_SUCCEEDED(result))
+          result = result2;
+
         if (NS_FAILED(result)) {
           // XXX: What do we do if this fails?
         }
 
-        nsresult result2 = DidMergeNotify(topTransaction, tint, didMerge, result);
-
-        // XXX: What do we do if this fails?
-
         if (didMerge) {
           delete tx;
           return result;
@@ -1173,3 +1189,21 @@ nsTransactionManager::EndTransaction()
   return result;
 }
 
+nsresult
+nsTransactionManager::Lock()
+{
+  if (mMonitor)
+    PR_EnterMonitor(mMonitor);
+
+  return NS_OK;
+}
+
+nsresult
+nsTransactionManager::Unlock()
+{
+  if (mMonitor)
+    PR_ExitMonitor(mMonitor);
+
+  return NS_OK;
+}
+
diff --git a/mozilla/editor/txmgr/src/nsTransactionManager.h b/mozilla/editor/txmgr/src/nsTransactionManager.h
index f8fd185e813..cd906d5f2a0 100644
--- a/mozilla/editor/txmgr/src/nsTransactionManager.h
+++ b/mozilla/editor/txmgr/src/nsTransactionManager.h
@@ -19,6 +19,8 @@
 #ifndef nsTransactionManager_h__
 #define nsTransactionManager_h__
 
+#include "prmon.h"
+
 class nsITransaction;
 class nsITransactionManager;
 class nsITransactionListener;
@@ -40,6 +42,8 @@ private:
   nsTransactionRedoStack mRedoStack;
   nsVoidArray            *mListeners;
 
+  PRMonitor              *mMonitor;
+
 public:
 
   /** The default constructor.
@@ -95,6 +99,8 @@ private:
   /* nsTransactionManager specific private methods. */
   virtual nsresult BeginTransaction(nsITransaction *aTransaction);
   virtual nsresult EndTransaction(void);
+  virtual nsresult Lock(void);
+  virtual nsresult Unlock(void);
 };
 
 #endif // nsTransactionManager_h__