--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crashanalysercmd/PerfToolsSharedLibraries/Engine/SymbianStackLib/Interfaces/IStackAlgorithmObserver.cs	Thu Feb 11 15:50:58 2010 +0200
@@ -0,0 +1,35 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+* 
+* Description:
+*
+*/
+using System;
+using System.Text;
+using System.Collections.Generic;
+using SymbianUtils;
+using SymbianUtils.Tracer;
+using SymbianStackLib.Data.Output.Entry;
+using SymbianStackLib.Algorithms;
+
+namespace SymbianStackLib.Interfaces
+{
+    public interface IStackAlgorithmObserver
+    {
+        void StackBuildingStarted( StackAlgorithm aAlg );
+        void StackBuldingProgress( StackAlgorithm aAlg, int aPercent );
+        void StackBuildingComplete( StackAlgorithm aAlg );
+        void StackBuildingException( StackAlgorithm aAlg, Exception aException );
+        void StackBuildingElementConstructed( StackAlgorithm aAlg, StackOutputEntry aEntry );
+    }
+}