/*

* Copyright (c) 2006 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:  header of ReadWriteRequestAO class.

*

*/

#ifndef READWRITEREQUESTAO_H

#define READWRITEREQUESTAO_H

//  INCLUDES

#include <e32base.h>

class CCacheSource; 

class CMMFBuffer;

class CMMFDataBuffer;

/**

*  Class to encapsulate a queue item.

*/

class CReadWriteRequestAO : public CActive

    {

    public:  // Constructors and destructor

        enum TRequestType

            {

                EReadRequest,

                EWriteRequest

            };    

        static CReadWriteRequestAO* NewL(CCacheSource& aSource,TRequestType aType);

        virtual ~CReadWriteRequestAO();

        void SetActive();

        TInt Error();

        CMMFDataBuffer* Buffer();

        TRequestType RequestType();

        TInt SetBuffer(CMMFBuffer* aBuffer);

    protected:

        // From CActive

        void RunL();

        void DoCancel();

        TInt RunError( TInt aError );

    private:

        CReadWriteRequestAO( CCacheSource& aSource,TRequestType aType );

        void ConstructL();

    private:

        CCacheSource& iSource;

        CMMFBuffer* iBuffer;

        TRequestType iType;

        TInt iError;

    };

#endif // READWRITEREQUESTAO_H

// End of File