Only dispatch_async on limelight-common's threads

Limelight/Stream/Connection.h

@@ -27,6 +27,7 @@
 
 -(id) initWithConfig:(StreamConfiguration*)config renderer:(VideoDecoderRenderer*)myRenderer connectionCallbacks:(id<ConnectionCallbacks>)callbacks;
 -(void) terminate;
+-(void) terminateInternal;
 -(void) main;
 
 @end

Limelight/Stream/Connection.m

@@ -275,7 +275,7 @@ void ClDisplayTransientMessage(char* message)
     [_callbacks displayTransientMessage: message];
 }
 
--(void) terminate
+-(void) terminateInternal
 {
     // We dispatch this async to get out because this can be invoked
     // on a thread inside common and we don't want to deadlock
@@ -285,6 +285,13 @@ void ClDisplayTransientMessage(char* message)
     });
 }
 
+-(void) terminate
+{
+    // We're guaranteed to not be on a limelight-common thread
+    // here so it's safe to call stop directly
+    LiStopConnection();
+}
+
 -(id) initWithConfig:(StreamConfiguration*)config renderer:(VideoDecoderRenderer*)myRenderer connectionCallbacks:(id<ConnectionCallbacks>)callbacks
 {
     self = [super init];

Limelight/Stream/StreamManager.h

@@ -14,5 +14,6 @@
 
 - (id) initWithConfig:(StreamConfiguration*)config renderView:(UIView*)view connectionCallbacks:(id<ConnectionCallbacks>)callback;
 - (void) stopStream;
+- (void) stopStreamInternal;
 
 @end

Limelight/Stream/StreamManager.m

@@ -79,11 +79,20 @@
     [opQueue addOperation:_connection];
 }
 
+// This should NEVER be called from within a thread
+// owned by limelight-common
 - (void) stopStream
 {
     [_connection terminate];
 }
 
+// This should only be called from within a thread
+// owned by limelight-common
+- (void) stopStreamInternal
+{
+    [_connection terminateInternal];
+}
+
 - (BOOL) launchApp:(HttpManager*)hMan {
     NSData* launchResp = [hMan executeRequestSynchronously:
                           [hMan newLaunchRequest:_config.appID

Limelight/ViewControllers/StreamFrameViewController.m

@@ -88,7 +88,7 @@
     }]];
     [self presentViewController:conTermAlert animated:YES completion:nil];
     
-    [_streamMan stopStream];
+    [_streamMan stopStreamInternal];
 }
 
 - (void) stageStarting:(char*)stageName {