[hyena] Handle exceptions in SourceAdded (bgo#612407)

[Gabriel Burt <gburt src gnome org>]

commit 772a4b829aa22dd00e4a0f8475bda72a2c2d304a
Author: Alexander Kojevnikov <alexander kojevnikov com>
Date:   Thu Mar 25 13:56:10 2010 +1100

    Handle exceptions in SourceAdded (bgo#612407)

 src/Hyena/Hyena/EventArgs.cs |   21 ++++++++++++++++++++-
 1 files changed, 20 insertions(+), 1 deletions(-)
---
diff --git a/src/Hyena/Hyena/EventArgs.cs b/src/Hyena/Hyena/EventArgs.cs
index 7603a9c..7ac9ccc 100644
--- a/src/Hyena/Hyena/EventArgs.cs
+++ b/src/Hyena/Hyena/EventArgs.cs
@@ -4,7 +4,7 @@
 // Author:
 //   Alexander Kojevnikov <alexander kojevnikov com>
 //
-// Copyright (C) 2009 Alexander Kojevnikov
+// Copyright (C) 2009-2010 Alexander Kojevnikov
 //
 // Permission is hereby granted, free of charge, to any person obtaining
 // a copy of this software and associated documentation files (the
@@ -26,6 +26,8 @@
 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //
 
+using System;
+
 namespace Hyena
 {
     public class EventArgs<T> : System.EventArgs
@@ -41,4 +43,21 @@ namespace Hyena
             get { return value; }
         }
     }
+
+    public static class EventExtensions
+    {
+        public static void SafeInvoke<T> (this T @event, params object[] args) where T : class
+        {
+            var multicast = @event as MulticastDelegate;
+            if (multicast != null) {
+                foreach (var handler in multicast.GetInvocationList ()) {
+                    try {
+                        handler.DynamicInvoke (args);
+                    } catch (Exception e) {
+                        Log.Exception (e);
+                    }
+                }
+            }
+        }
+    }
 }