__xmlGlobalInitMutexDestroy() will free global_init_lock on Win32. Patch

* globals.c threads.c include/libxml/threads.h: 
  __xmlGlobalInitMutexDestroy() will free global_init_lock on Win32.
  Patch from Marc-Antoine Ruel.

svn path=/trunk/; revision=3664

ChangeLog

+Fri Nov 16 11:55:36 CET 2007 Rob Richards <rrichards@ctindustries.net>
+
+	* globals.c threads.c include/libxml/threads.h: 
+	  __xmlGlobalInitMutexDestroy() will free global_init_lock on Win32.
+	  Patch from Marc-Antoine Ruel.
+
 Tue Nov 13 21:26:27 CET 2007 Rob Richards <rrichards@ctindustries.net>
 
 	* schematron.c: fix crash/leaks from xmlSchematronParse due to improper

globals.c

@@ -60,6 +60,7 @@ void xmlCleanupGlobals(void)
 	xmlFreeMutex(xmlThrDefMutex);
 	xmlThrDefMutex = NULL;
     }
+	__xmlGlobalInitMutexDestroy();
 }
 
 /************************************************************************

libxml.h

@@ -77,6 +77,7 @@ void __htmlParseContent(void *ctx);
  */
 void __xmlGlobalInitMutexLock(void);
 void __xmlGlobalInitMutexUnlock(void);
+void __xmlGlobalInitMutexDestroy(void);
 
 #ifdef IN_LIBXML
 #ifdef __GNUC__

threads.c

@@ -451,6 +451,7 @@ __xmlGlobalInitMutexLock(void)
 	 * section in the global_init_lock then discard the one
 	 * allocated by this thread. */
 	if (global_init_lock != cs) {
+		DeleteCriticalSection(cs);
 	    free(cs);
 	}
     }
@@ -500,6 +501,24 @@ __xmlGlobalInitMutexUnlock(void)
 #endif
 }
 
+/**
+ * xmlGlobalInitMutexDestroy
+ *
+ * Makes sure that the global initialization mutex is destroyed before
+ * application termination.
+ */
+void __xmlGlobalInitMutexDestroy(void)
+{
+#if defined HAVE_WIN32_THREADS
+    if (global_init_lock != NULL)
+    {
+	DeleteCriticalSection(global_init_lock);
+	free(global_init_lock);
+	global_init_lock = NULL;
+    }
+#endif
+}
+
 /************************************************************************
  *									*
  *			Per thread global state handling		*