From 8985cde70901c62d3f0f04da225e73b7344a52d7 Mon Sep 17 00:00:00 2001
From: Martin von Gagern <Martin.vGagern@gmx.net>
Date: Mon, 13 Apr 2015 16:32:14 +0800
Subject: [PATCH] xmlMemUsed is not thread-safe

For https://bugzilla.gnome.org/show_bug.cgi?id=747437
just use the mutex to protect access to those variables
---
 xmlmemory.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/xmlmemory.c b/xmlmemory.c
index a3dc737..f24fd6d 100644
--- a/xmlmemory.c
+++ b/xmlmemory.c
@@ -554,7 +554,12 @@ xmlMemoryStrdup(const char *str) {
 
 int
 xmlMemUsed(void) {
-     return(debugMemSize);
+    int res;
+
+    xmlMutexLock(xmlMemMutex);
+    res = debugMemSize;
+    xmlMutexUnlock(xmlMemMutex);
+    return(res);
 }
 
 /**
@@ -567,7 +572,12 @@ xmlMemUsed(void) {
 
 int
 xmlMemBlocks(void) {
-     return(debugMemBlocks);
+    int res;
+
+    xmlMutexLock(xmlMemMutex);
+    res = debugMemBlocks;
+    xmlMutexUnlock(xmlMemMutex);
+    return(res);
 }
 
 #ifdef MEM_LIST
-- 
2.6.3