// Copyright (c) 2007-2010 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:

// Interface class for media plug-ins

// 

#ifndef __TRACECOREPLUGINIF_H__

#define __TRACECOREPLUGINIF_H__

// Include files

#include <kernel/kernel.h>

#include "TraceCoreMediaIf.h"

// Forward declarations

class DTraceCoreMediaPlugin;

class TTraceMessage;

/**

 * Interface class for media plug-ins

 */

NONSHARABLE_CLASS( DTraceCorePluginIf ) : public DTraceCoreMediaIf

    {

public:

    /**

     * Constructor

     */

    DTraceCorePluginIf();

    /**

     * Destructor

     */

    ~DTraceCorePluginIf();

    /**

     * Initializes this interface

     * 

     * @param aCallback Callback interface which is notified when ISI messages are received

     */

	TInt Init( MTraceCoreMediaIfCallback& aCallback );

	/**

	 * Sends a message

	 *

	 * @param aMsg The message to be sent

	 */

	TInt Send( TTraceMessage& aMsg );

	/**

	 * Registers a media plug-in

	 */

	TInt RegisterPlugin( DTraceCoreMediaPlugin& aPlugin );

	/**

	 * Unregisters a media plug-in

	 */

	void UnregisterPlugin( DTraceCoreMediaPlugin& aPlugin );

	/**

	 * Message was received by plug-in

     * 

     * @param aMsg The message that was received

	 */

	void MessageReceived( TTraceMessage &aMsg );

private:

    /**

     * Media plug-in. Currently only one supported

     */

    DTraceCoreMediaPlugin* iMediaPlugin;

    };

#endif // __TRACECOREPLUGINIF_H__

// End of File