/*

 * 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: Telephony Multimedia Service

 *

 */

#ifndef TMS_CLIENT_SINK_OBSRVR_H

#define TMS_CLIENT_SINK_OBSRVR_H

// Include files

namespace TMS {

// FORWARD DECLARATIONS

class TMSBuffer;

/**

 * TMSClientSinkObserver class

 *

 * This class provides callback mechanism for TMSClientSink listeners.

 *

 * Client class that wants to receive data buffer events from TMS must inherit

 * from TMSClientSinkObserver class and register itself with the TMSBuffer

 * object.

 *

 * Functions declared in this class are called when data is available at the

 * sink and pushed to the application for further processing.

 *

 * The client must not do any blocking, or perform any CPU-intensive operations

 * in the callback methods. It is recommended that the client saves event data,

 * returns from this function immediately and if necessary, responds to

 * the event in asynchronous way.

 *

 * @lib tmsapi.lib

 *

 */

class TMSClientSinkObserver

    {

public:

    /**

     * This method is called when the TMS pushes data buffers to the Client.

     *

     * Only push mode is supported at this moment.

     *

     * @param  buffer

     *      Buffer with recorded data to be emptied by the client.

     *

     */

    virtual void ProcessBuffer(TMSBuffer* buffer) = 0;

    };

} //namespace TMS

#endif // TMS_CLIENT_SINK_OBSRVR_H

// End of file