SteamController: Use MyLock to detect the deadlock when handling controller

CommonHelpers/MyLock.cs

@@ -0,0 +1,43 @@
+namespace CommonHelpers
+{
+    public class MyLock : IDisposable
+    {
+        private object context;
+
+        public MyLock(object context)
+        {
+            this.context = context;
+            Monitor.Enter(this.context);
+        }
+
+        public MyLock(object lockObj, int millisecondsTimeout)
+        {
+            this.context = lockObj;
+            if (!Monitor.TryEnter(this.context, millisecondsTimeout))
+                RaiseTimeout();
+        }
+
+        public MyLock(object lockObj, TimeSpan timeout)
+        {
+            this.context = lockObj;
+            if (!Monitor.TryEnter(this.context, timeout))
+                RaiseTimeout();
+        }
+
+        public void Dispose()
+        {
+            Monitor.Exit(context);
+        }
+
+        private void RaiseTimeout()
+        {
+            var message = String.Format("Lock took too long for: {0}\n{1}",
+                this.context, Environment.StackTrace);
+
+            Log.TraceError("RaiseTimeout: {0}", message);
+
+            MessageBox.Show(message, "Lock timeout");
+            throw new TimeoutException();
+        }
+    }
+}