--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natfw/natfwconnectionmultiplexer/inc/mncmmultiplexerconnectionobserver.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,88 @@
+/*
+* Copyright (c) 2006-2007 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:    Observer for CMultiplexerConnection
+*
+*/
+
+
+
+
+#ifndef M_MNCMMULTIPLEXERCONNECTIONOBSERVER_H
+#define M_MNCMMULTIPLEXERCONNECTIONOBSERVER_H
+
+#include <e32base.h>
+
+#include "ncmconnectionmultiplexer.hrh"
+
+/**
+ *  Observer for CNcmConnection
+ *
+ *  Allow user of connection to receive error notifications while
+ *  data is not able to pass through successfully.
+ *
+ *  @lib connectionmux.lib
+ *  @since S60 v3.2
+ */
+class MNcmMultiplexerConnectionObserver
+    {
+
+public:
+
+
+    /**
+     * Called by connection when transfer error occurs on it
+     *
+     * @since   S60 v3.2
+     * @param   aSessionId          The ID identifying session
+     * @param   aStreamId           The ID identifying stream
+     * @param   aConnectionId       The ID identifying connection
+     * @param   aNotifyType         Type of notify
+     * @param   aError              The error code
+     * @return void
+     */
+    virtual void ConnectionError( TUint aSessionId, TUint aStreamId,
+        TUint aConnectionId,
+        TMultiplexerConnectionNotifyType aNotifyType, TInt aError ) = 0;
+    
+    /**
+     * Called by socket destination object when action completes
+     * (or error is reached)
+     *
+     * @since   S60 v3.2
+     * @param   aStreamId           The ID identifying stream
+     * @param   aConnectionId       The ID identifying connection
+     * @param   aType               Type of notify
+     * @param   aError              Error code
+     * @return  void
+     */
+    virtual void ConnectionNotify( TUint aStreamId, TUint aConnectionId,
+        TMultiplexerConnectionNotifyType aType, TInt aError ) = 0;
+    
+    /**
+     * Called by socket destination object when current local port is already in use.
+     * Get new free port.
+     *
+     * @since   S60 v3.2
+     * @param   aStreamId           The ID identifying stream
+     * @param   aConnectionId       The ID identifying connection     
+     * @param   aPort               New free port
+     * @return  void
+     */    
+    virtual void GetNewFreePort( TUint aStreamId, TUint aConnectionId,
+        TUint& aPort ) = 0;
+
+    };
+
+
+#endif // M_MNCMMULTIPLEXERCONNECTIONOBSERVER_H