From a6c4a7c9b581e7929acfeec1038f00f2952d0c6c Mon Sep 17 00:00:00 2001
From: thefiddler <stapostol@gmail.com>
Date: Wed, 23 Jul 2014 21:15:16 +0200
Subject: [PATCH] [Mac] Only dispose context on UI thread

---
 Source/OpenTK/Platform/MacOS/CocoaContext.cs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Source/OpenTK/Platform/MacOS/CocoaContext.cs b/Source/OpenTK/Platform/MacOS/CocoaContext.cs
index 89c17e4..58dcec2 100644
--- a/Source/OpenTK/Platform/MacOS/CocoaContext.cs
+++ b/Source/OpenTK/Platform/MacOS/CocoaContext.cs
@@ -333,6 +333,9 @@ namespace OpenTK
 
             Debug.Print("Disposing of Cocoa context.");
 
+            if (!NSApplication.IsUIThread)
+                return;
+
             Cocoa.SendVoid(NSOpenGLContext, Selector.Get("clearCurrentContext"));
             Cocoa.SendVoid(Handle.Handle, Selector.Get("clearDrawable"));
             Cocoa.SendVoid(Handle.Handle, Selector.Get("release"));
-- 
2.7.4