From c0ff13e571b27b72ce9cd4e76bbbace1ac76c3ca Mon Sep 17 00:00:00 2001
From: Thomas Bluemel <thomas@reactsoft.com>
Date: Wed, 19 Jan 2005 19:14:56 +0000
Subject: [PATCH] made SetErrorMode() thread-safe

svn path=/trunk/; revision=13134
---
 reactos/lib/kernel32/except/except.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/reactos/lib/kernel32/except/except.c b/reactos/lib/kernel32/except/except.c
index c63d06ab3aa..5350e830c3b 100644
--- a/reactos/lib/kernel32/except/except.c
+++ b/reactos/lib/kernel32/except/except.c
@@ -15,25 +15,18 @@
 #define NDEBUG
 #include "../include/debug.h"
 
-UINT GlobalErrMode = 0;
+UINT GlobalErrorMode = 0;
 LPTOP_LEVEL_EXCEPTION_FILTER GlobalTopLevelExceptionFilter = UnhandledExceptionFilter;
 
-UINT GetErrorMode(void)
-{
-	return GlobalErrMode;
-}
-
 
 /*
  * @implemented
  */
 UINT 
 STDCALL
-SetErrorMode(  UINT uMode  )
+SetErrorMode(UINT uMode)
 {
-	UINT OldErrMode = GetErrorMode();
-	GlobalErrMode = uMode;
-	return OldErrMode;
+   return (UINT)InterlockedExchange((LONG*)&GlobalErrorMode, (LONG)uMode);
 }
 
 
@@ -121,7 +114,7 @@ UnhandledExceptionFilter(struct _EXCEPTION_POINTERS *ExceptionInfo)
       return EXCEPTION_CONTINUE_SEARCH;
    }
 
-   if ((GetErrorMode() & SEM_NOGPFAULTERRORBOX) == 0)
+   if ((GlobalErrorMode & SEM_NOGPFAULTERRORBOX) == 0)
    {
 #ifdef _X86_
       PULONG Frame;