[fireball] 46861: - Grab a USER lock when entering timer worker routines, fixes race conditions (were exhibited by user32_winetest msg).

Author: fireball
Date: Tue Apr 13 22:11:19 2010
New Revision: 46861

URL: http://svn.reactos.org/svn/reactos?rev=46861&view=rev
Log:
- Grab a USER lock when entering timer worker routines, fixes race conditions (were exhibited by user32_winetest msg).

Modified:
    branches/arwinss/reactos/subsystems/win32/win32k/wine/queue.c

Modified: branches/arwinss/reactos/subsystems/win32/win32k/wine/queue.c
URL: http://svn.reactos.org/svn/reactos/branches/arwinss/reactos/subsystems/win32...
==============================================================================
--- branches/arwinss/reactos/subsystems/win32/win32k/wine/queue.c [iso-8859-1] (original)
+++ branches/arwinss/reactos/subsystems/win32/win32k/wine/queue.c [iso-8859-1] Tue Apr 13 22:11:19 2010
@@ -529,6 +529,8 @@
 {
     struct message_result *result = Context;

+    UserEnterExclusive();
+
     assert( !result->replied );

result->timeout = NULL;
@@ -547,11 +549,13 @@
         if (!result->sender)
         {
             free_result( result );
+            UserLeave();
             return;
         }
     }

store_message_result( result, 0, STATUS_TIMEOUT );
+    UserLeave();
 }

/* message timed out without getting a reply */
@@ -1060,6 +1064,8 @@
     struct msg_queue *queue = Context;
     struct list *ptr;

+    UserEnterExclusive();
+
     /* Free workitem */
     ExFreePool(queue->work_item);

@@ -1069,6 +1075,8 @@
     list_remove( ptr );
     list_add_tail( &queue->expired_timers, ptr );
     set_next_timer( queue );
+
+    UserLeave();
 }

static