// 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/cmtptypetrivialdata.h>

const TInt KMaxSizeOfWriteBuffer = 0x00004000; // 16KB

EXPORT_C CMTPTypeTrivialData* CMTPTypeTrivialData::NewL()

    {

    CMTPTypeTrivialData* self = NewLC();

    CleanupStack::Pop(self);

    return self;

    }

EXPORT_C CMTPTypeTrivialData* CMTPTypeTrivialData::NewLC()

    {

    CMTPTypeTrivialData* self = new(ELeave) CMTPTypeTrivialData();

    CleanupStack::PushL(self);

    self->ConstructL();

    return self;

    }

void CMTPTypeTrivialData::ConstructL()

    {

    }

CMTPTypeTrivialData::CMTPTypeTrivialData()

    {

    }

EXPORT_C CMTPTypeTrivialData::~CMTPTypeTrivialData()

    {

    iBuffer.Close();

    }

EXPORT_C TInt CMTPTypeTrivialData::FirstReadChunk(TPtrC8& /* aChunk */) const

    {

    __ASSERT_DEBUG(EFalse, User::Invariant());

    return KMTPChunkSequenceCompletion;

    }

EXPORT_C TInt CMTPTypeTrivialData::NextReadChunk(TPtrC8& /* aChunk */) const

    {

    __ASSERT_DEBUG(EFalse, User::Invariant());

    return KErrNotReady;

    }

EXPORT_C TInt CMTPTypeTrivialData::FirstWriteChunk(TPtr8& aChunk)

    {    

    return NextWriteChunk(aChunk);

    }

EXPORT_C TInt CMTPTypeTrivialData::NextWriteChunk(TPtr8& aChunk)

    {    

    if (iBuffer.MaxSize() == 0)

    {

    iBuffer.Create(KMaxSizeOfWriteBuffer);

    }

    aChunk.Set( const_cast<TUint8*>(iBuffer.Ptr()), 0, KMaxSizeOfWriteBuffer);

    return KErrNone;    

    }

EXPORT_C TInt CMTPTypeTrivialData::FirstWriteChunk(TPtr8& aChunk, TUint aDataLength )

    {

    return NextWriteChunk(aChunk, aDataLength);

    }

EXPORT_C TInt CMTPTypeTrivialData::NextWriteChunk(TPtr8& aChunk, TUint aDataLength )

    {

    TInt ret = KMTPChunkSequenceCompletion;

    TUint len = aDataLength;

    if(aDataLength > KMaxSizeOfWriteBuffer)

        {

        len = KMaxSizeOfWriteBuffer;

        ret = KErrNone;

        }

    if (iBuffer.MaxSize() == 0)

    {

    iBuffer.Create(len);

    }

    aChunk.Set( const_cast<TUint8*>(iBuffer.Ptr()), 0, len);

    return ret;

    }

EXPORT_C TUint64 CMTPTypeTrivialData::Size() const

    {

    return 0;

    }

EXPORT_C TUint CMTPTypeTrivialData::Type() const

    {

    return EMTPTypeTrivialData;        

    }