Fix possible race due to multiple concurrent assignement of the wait …

…event in PendingCall.
mono · Sep 20, 2010 · 84f2126 · 84f2126
1 parent ec2eb66
commit 84f2126
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/PendingCall.cs b/src/PendingCall.cs
@@ -39,7 +39,7 @@ public Message Reply
 					conn.DispatchSignals ();
 				} else {
 					if (waitHandle == null)
-						waitHandle = new ManualResetEvent (false);
+						Interlocked.CompareExchange (ref waitHandle, new ManualResetEvent (false), null);
 
 					// TODO: Possible race condition?
 					while (reply == null)