--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/druntime/src/common/core/sync/exception.d	Tue Jun 02 17:43:06 2009 +0100
@@ -0,0 +1,26 @@
+/**
+ * The barrier module provides a primitive for synchronizing the progress of
+ * a group of threads.
+ *
+ * Copyright: Copyright Sean Kelly 2005 - 2009.
+ * License:   <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>.
+ * Authors:   Sean Kelly
+ *
+ *          Copyright Sean Kelly 2005 - 2009.
+ * Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *          http://www.boost.org/LICENSE_1_0.txt)
+ */
+module core.sync.exception;
+
+
+/**
+ * Base class for synchronization exceptions.
+ */
+class SyncException : Exception
+{
+    this( string msg )
+    {
+        super( msg );
+    }
+}