[f-spot] Make sure F-Spot exists correctly.

[Ruben Vermeersch <rubenv src gnome org>]

commit b2fdf3449afaaae830d94985f9a8bbec235050ce
Author: Ruben Vermeersch <ruben savanne be>
Date:   Wed Jun 16 21:17:22 2010 +0200

    Make sure F-Spot exists correctly.

 src/ImageLoaderThread.cs |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/src/ImageLoaderThread.cs b/src/ImageLoaderThread.cs
index 29d61a6..626b19f 100644
--- a/src/ImageLoaderThread.cs
+++ b/src/ImageLoaderThread.cs
@@ -135,6 +135,9 @@ public class ImageLoaderThread {
 	{
 		should_cancel = true;
 		if (worker_thread != null) {
+			lock (queue) { 
+				Monitor.Pulse (queue); 
+			}
 			worker_thread.Join ();
 		}
 		worker_thread = null;
@@ -251,8 +254,11 @@ public class ImageLoaderThread {
 	
 				lock (queue) {
 					
-					while (queue.Count == 0 || block_count > 0)
+					while ((queue.Count == 0 || block_count > 0) && !should_cancel)
 						Monitor.Wait (queue);
+
+					if (should_cancel)
+						return;
 					
 					int pos = queue.Count - 1;