/*

* Copyright (c) 2004 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:  Definition of the audio buffer write request active object class

*

*/

#ifndef CWRITEREQUEST_H

#define CWRITEREQUEST_H

// INCLUDES

#include <e32base.h>

#include "S60AudioClientStreamSource.h"

// CLASS DECLARATION

/**

*  S60 Audio Buffer class encapsulating a client audio buffer write request to the server-side data source.

*

*  @lib S60AudioClientStreamSource.lib

*  @since 3.1

*/

class CWriteRequest : public CActive

    {

    public: // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CWriteRequest* NewL(TMMFMessageDestinationPckg aMessageHandler, RMMFController& aController,

        							 CS60SourceEventDispatcher& aCallback);

        /**

        * Destructor.

        */

        virtual ~CWriteRequest();

    public: // New functions

		/**

        * Write the specified buffer to source

        * @param aBuffer Buffer to be processed.

        * @since 3.1

        * @return One of the Standard Return Error Codes

        */

        void WriteAudioData(CClientAudioBuffer& aBuffer);

        /**

        * Returns if the WriteRequest is Free

        * @since Series 60 3.1

        * @return return the status of the WriteRequest

        */

        TBool IsFree();

    private:

        /**

        * C++ default constructor.

        */

        CWriteRequest(TMMFMessageDestinationPckg aMessageHandler, RMMFController& aController,

        							 CS60SourceEventDispatcher& aCallback);

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        void RunL();

        void DoCancel();

    private:

		// Pointer to controller with custom command facility

		RMMFController& iController;

		// Message handler handle

		TMMFMessageDestinationPckg iMessageHandler;

		// Object to notify upon request completion

		CS60SourceEventDispatcher& iCallback;

		// Last buffer indicator to be sent to server-side

		TPckgBuf<TInt> iLastBufferPckg;

		// Buffer to be sent to server-side

		//TDesC8* iBuffer;

		CClientAudioBuffer* iClientBuffer;

		// Indicates whether the buffer has been processed

		TBool iProcessed;

		// Indicates whether this object is free to reuse

		TBool iFree;

	};

#endif 		// CWRITEREQUEST_H

//  End of File