--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hti/HtiServicePlugins/HtiIpProxyServicePlugin/IPProxyEngine/Src/MExpressionObserver.h	Wed Oct 13 16:17:58 2010 +0300
@@ -0,0 +1,63 @@
+/*
+* 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:  Callback functions for a protocol expression observer
+*
+*/
+
+
+
+#ifndef MEXPRESSIONOBSERVER_H
+#define MEXPRESSIONOBSERVER_H
+
+//  INCLUDES
+#include <e32def.h>
+
+// CLASS DECLARATION
+
+/**
+*  Events for protocol.
+*/
+NONSHARABLE_CLASS( MExpressionObserver )
+    {
+
+    public: // Abstract functions
+
+        /**
+        * Frame has started.
+        */
+        virtual void FrameStarted() = 0;
+
+        /**
+        * Frame has been parsed.
+        * @param aPort Port number parsed from received frame.
+        * @param aData Data parsed from received frame.
+        */
+        virtual void FrameParsedL(
+            TUint aPort,
+            const TDesC8& aData ) = 0;
+
+        /**
+        * Error occurred when parsing data.
+        * @param aErrorCode Error code.
+        * @param aReceivedData Whole frame that failed to be parsed.
+        */
+        virtual void ProtocolErrorL(
+            TInt aErrorCode,
+            const TDesC8& aReceivedData ) = 0;
+
+    };
+
+#endif      // MEXPRESSIONOBSERVER_H
+
+// End of File