/*

* 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 interface used to receive notifications from

*                Connection Multiplexer.

*

*/

#ifndef M_MNCMCONNECTIONMULTIPLEXEROBSERVER_H

#define M_MNCMCONNECTIONMULTIPLEXEROBSERVER_H

#include <e32base.h>

class TInetAddr;

/**

 *  Observer interface used to receive notifications from

 *  Connection Multiplexer

 *

 *  @lib connectionmux.lib

 *  @since S60 v3.2

 */

class MNcmConnectionMultiplexerObserver

    {

public:

    /**  Types of notifies */

    enum TNotifyType

        {

        ESessionCreated         = 1,

        EReceivingActivated     = 2,

        EReceivingDeactivated   = 3,

        ESendingActivated       = 4,

        ESendingDeactivated     = 5,

        EStreamError            = 6

        };

    /**

     * Called by Connection Multiplexer when actions completes

     *

     * @since   S60 v3.2

     * @param   aSessionId      The ID identifying session

     * @param   aStreamId       The ID identifying stream

     * @param   aType           Type of notify

     * @param   aError          Error code. KErrNone if successful.

     * @return void

     */

    virtual void Notify( TUint aSessionId, TUint aStreamId,

        TNotifyType aType, TInt aError ) = 0;       

    };

#endif // M_MNCMCONNECTIONMULTIPLEXEROBSERVER_H