// 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/tmtptypeuint128.h>

/**

Default constructor.

*/

EXPORT_C TMTPTypeUint128::TMTPTypeUint128()

    {

    iData.FillZ(iData.MaxLength());

    }

/**

Conversion constructor.

@param aData The initial data value.

*/

EXPORT_C TMTPTypeUint128::TMTPTypeUint128(const TPtrC8& aData) : 

    iData(aData)

    {

    }

/**

Conversion constructor.

@param aUpperGUID the most significant 64 bits: TUint32 and TUint16[2]

@param aLowerGUID the lowest  64 bits : TUint8[8]

*/

EXPORT_C TMTPTypeUint128::TMTPTypeUint128(const TUint64 aUpperValue, const TUint64 aLowerValue) 

    {  

    iData.FillZ(iData.MaxLength());

    memcpy(&iData[KMTPTypeUint128OffsetMS], &aUpperValue, sizeof(aUpperValue));

    memcpy(&iData[KMTPTypeUint128OffsetLS], &aLowerValue, sizeof(aLowerValue));

    }

/**

Sets the data type to the specified value.

*/  

EXPORT_C void TMTPTypeUint128::Set(TUint64 aUpperValue, TUint64 aLowerValue)

	{   

    memcpy(&iData[KMTPTypeUint128OffsetMS], &aUpperValue, sizeof(aUpperValue));

    memcpy(&iData[KMTPTypeUint128OffsetLS], &aLowerValue, sizeof(aLowerValue));

	}

/**

Provides the least significant portion of the data type.

@return The least significant 64 bits of the value.

*/    

EXPORT_C TUint64 TMTPTypeUint128::LowerValue() const

    {    

    // memcpy the data to avoid alignment errors.

    TUint64 ret;

    memcpy(&ret, &iData[KMTPTypeUint128OffsetLS], sizeof(ret));

    return ret;

    }

/**

Provides the most significant portion of type's value.

@return The most significant 64 bits of the value.

*/    

EXPORT_C TUint64 TMTPTypeUint128::UpperValue() const

    {

    // memcpy the data to avoid alignment errors.

    TUint64 ret;

    memcpy(&ret, &iData[KMTPTypeUint128OffsetMS], sizeof(ret));

    return ret;

    }

EXPORT_C TInt TMTPTypeUint128::FirstReadChunk(TPtrC8& aChunk) const

    {

	aChunk.Set(iData);

    return KMTPChunkSequenceCompletion;

    }

EXPORT_C TInt TMTPTypeUint128::NextReadChunk(TPtrC8& aChunk) const

    {

    aChunk.Set(NULL, 0);

    return KErrNotReady;

    }

EXPORT_C TInt TMTPTypeUint128::FirstWriteChunk(TPtr8& aChunk)

    {

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

    return KMTPChunkSequenceCompletion;

    }

EXPORT_C TInt TMTPTypeUint128::NextWriteChunk(TPtr8& aChunk)

    {

    aChunk.Set(NULL, 0, 0);

    return KErrNotReady;

    }

EXPORT_C TUint64 TMTPTypeUint128::Size() const

    {

    return iData.MaxLength();

    }

EXPORT_C TUint TMTPTypeUint128::Type() const

    {

    return EMTPTypeUINT128;

    }

EXPORT_C TBool TMTPTypeUint128::Equal(const TMTPTypeUint128& aR) const

    {

    return ( (this->UpperValue() == aR.UpperValue()) && (this->LowerValue() == aR.LowerValue()) );

    }

EXPORT_C TInt TMTPTypeUint128::Compare(const TMTPTypeUint128& aR) const

    {  

    return this->Compare(aR.UpperValue(),aR.LowerValue());

    }

EXPORT_C TInt TMTPTypeUint128::Compare(const TUint64 aRUpper, const TUint64 aRLower) const

    {

    TUint64 tmp = this->UpperValue();

    if( tmp != aRUpper)

        {

        return ( tmp > aRUpper ) ? 1 : -1;

        }

    tmp = this->LowerValue();

    if ( tmp != aRLower )

        {

        return ( tmp > aRLower ) ? 1 : -1;

        }

    return 0;

    }