X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FKernel%2Fevents.c;h=b0225efe2750eccae269209618b19871a761145a;hb=93ba8160b62a79f7d0823dec4972a498c9a3bcc6;hp=2b39714e8f6bc74ac8bf61dfe262af9e22accb64;hpb=0aaaf2139d5b5eb3efbd4aa5fa6eaa083a941e5c;p=tpg%2Facess2.git

diff --git a/KernelLand/Kernel/events.c b/KernelLand/Kernel/events.c
index 2b39714e..b0225efe 100644
--- a/KernelLand/Kernel/events.c
+++ b/KernelLand/Kernel/events.c
@@ -83,10 +83,13 @@ Uint32 Threads_WaitEvents(Uint32 EventMask)
 	// Check if a wait is needed
 	SHORTLOCK( &us->IsLocked );
 	LOG("Locked and preparing for wait");
-	Threads_int_Sleep(THREAD_STAT_EVENTSLEEP, NULL, EventMask,
-		&us, NULL, &us->IsLocked);
-	// Woken when lock is acquired
-	SHORTLOCK( &us->IsLocked );
+	if( (us->EventState & EventMask) == 0 )
+	{
+		Threads_int_Sleep(THREAD_STAT_EVENTSLEEP, NULL, EventMask,
+			&us, NULL, &us->IsLocked);
+		// Woken when lock is acquired
+		SHORTLOCK( &us->IsLocked );
+	}
 	
 	// Get return value and clear changed event bits
 	rv = us->EventState & EventMask;