__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

1 files changed, 19 insertions, 0 deletions

diff --git a/threads.c b/threads.c
index 0ab9e771..08c5ba3a 100644
--- a/threads.c
+++ b/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		*