// Copyright (c) 2006-2009 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:

//

/**

 @file

 @publishedPartner

*/

#include <mtp/mtpdatatypeconstants.h>

#include <mtp/tmtptypenull.h>

#include "mtpdatatypespanic.h"

/**

Default constructor.

*/

EXPORT_C TMTPTypeNull::TMTPTypeNull() :

	iNullBuffer(NULL, 0, 0)

    {

    }

/**

Sets the data sink buffer to be used in write data stream operations.

@param aBuffer The data sink buffer.

*/

EXPORT_C void TMTPTypeNull::SetBuffer(const TDes8& aBuffer)

	{

	iNullBuffer.Set(aBuffer.MidTPtr(0));

	}

EXPORT_C TInt TMTPTypeNull::FirstReadChunk(TPtrC8& aChunk) const

    {

    aChunk.Set(KNullDesC8);

    return KMTPChunkSequenceCompletion;

    }

EXPORT_C TInt TMTPTypeNull::NextReadChunk(TPtrC8& aChunk) const

    {

    aChunk.Set(KNullDesC8);

    return KErrNotReady;

    }

EXPORT_C TInt TMTPTypeNull::FirstWriteChunk(TPtr8& aChunk)

    {

    aChunk.Set(&iNullBuffer[0], 0, iNullBuffer.MaxLength());

    return KErrNone;

    }

EXPORT_C TInt TMTPTypeNull::NextWriteChunk(TPtr8& aChunk)

	{

    aChunk.Set(&iNullBuffer[0], 0, iNullBuffer.MaxLength());

    return KErrNone;

    }

EXPORT_C TUint64 TMTPTypeNull::Size() const

    {

    return 0;

    }

EXPORT_C TUint TMTPTypeNull::Type() const

    {

    return EMTPTypeUndefined;        

    }