*** empty log message ***

git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@1653 8092fc87-c524-0410-9efc-e669fe64eaf9

sc2/ChangeLog

@@ -1,4 +1,6 @@
 Changes towards version 0.4:
+- Guard access to the Clock so that accessing it is a no-op when the game 
+  isn't actually in progress (bug #678), from Nic
 - Accept files with .uqm extension for packages (bug #558)
   Added regex fallback files. - SvdB
 - Music volume normalized throughout the game (bug #718) -Alex

sc2/src/sc2code/clock.c

@@ -212,6 +212,7 @@ UninitGameClock (void)
 		GLOBAL (GameClock.clock_task) = 0;
 	}
 	DestroyMutex (clock_mutex);
+	clock_mutex = NULL;
 
 	UninitQueue (&GLOBAL (GameClock.event_q));
 
@@ -221,6 +222,9 @@ UninitGameClock (void)
 void
 SuspendGameClock (void)
 {
+	if (! clock_mutex)
+		return;
+
 	LockMutex (clock_mutex);
 	if (GameClockRunning ())
 	{
@@ -233,6 +237,9 @@ SuspendGameClock (void)
 void
 ResumeGameClock (void)
 {
+	if (! clock_mutex)
+		return;
+
 	LockMutex (clock_mutex);
 	if (!GameClockRunning ())
 	{