prevent canceling thread multiple times causing a deadlock

diff --git a/src/CrowThread.cs b/src/CrowThread.cs
index 7e00d1b395fc7ea683bd83a5e7cfae6681d40561..823fe1a63b0df92776267b413410c42900294144 100644 (file)
--- a/src/CrowThread.cs
+++ b/src/CrowThread.cs
@@ -53,11 +53,9 @@ namespace Crow
                }
                public void Start() { thread.Start();}
                public void Cancel(){
-                       if (thread.IsAlive){
+                       if (thread.IsAlive & !cancelRequested){
                                cancelRequested = true;
-                               //cancelLoading = true;
                                thread.Join ();
-                               //cancelLoading = false;
                        }
                        lock (Host.currentInterface.CrowThreads)
                                Host.currentInterface.CrowThreads.Remove (this);