/*

* Copyright (c) 2004-2007 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: 

*     Implements Virtual Phonebook generic IPC package.

*

*/

#include "VPbkIPCPackage.h"

// System includes

#include <barsread.h>

#include <s32mem.h>

/// Unnamed namespace for local definitions

namespace {

const TInt KNumberSize = 4;

const TInt KEmpty = 0;

const TInt KDouble = 2;

} /// namespace

namespace VPbkEngUtils {

// --------------------------------------------------------------------------

// VPbkIPCPackage::ExternalizeL

// --------------------------------------------------------------------------

//  

EXPORT_C void VPbkIPCPackage::ExternalizeL( 

        const TDesC8* aBuffer, 

        RDesWriteStream& aWriteStream )

    {

    if ( aBuffer )

        {        

        aWriteStream.WriteUint32L( aBuffer->Length() );

        aWriteStream.WriteL( *aBuffer );                

        }

    else

        {

        aWriteStream.WriteUint32L( KEmpty );

        }

    }

// --------------------------------------------------------------------------

// VPbkIPCPackage::ExternalizeL

// --------------------------------------------------------------------------

//     

EXPORT_C void VPbkIPCPackage::ExternalizeL( 

        const TDesC* aBuffer, 

        RDesWriteStream& aWriteStream )

    {

    if ( aBuffer )

        {        

        aWriteStream.WriteUint32L( aBuffer->Length() );

        aWriteStream.WriteL( *aBuffer );                

        }

    else

        {

        aWriteStream.WriteUint32L( KEmpty );

        }

    }

// --------------------------------------------------------------------------

// VPbkIPCPackage::InternalizeL

// --------------------------------------------------------------------------

// 

EXPORT_C void VPbkIPCPackage::InternalizeL( 

        HBufC8*& aBuffer, 

        RDesReadStream& aReadStream )

    {

    delete aBuffer;

    aBuffer = NULL;   

    TInt length( aReadStream.ReadUint32L() );    

    if ( length > 0 )

        {

        aBuffer = HBufC8::NewL( length );        

        TPtr8 ptr = aBuffer->Des();

        aReadStream.ReadL( ptr ,length );

        }      

    }

// --------------------------------------------------------------------------

// VPbkIPCPackage::InternalizeL

// --------------------------------------------------------------------------

//     

EXPORT_C void VPbkIPCPackage::InternalizeL( 

        HBufC*& aBuffer, 

        RDesReadStream& aReadStream )    

    {

    delete aBuffer;

    aBuffer = NULL;

    TInt length( aReadStream.ReadUint32L() );

    if ( length > 0 )

        {

        aBuffer = HBufC::NewL( length );        

        TPtr ptr = aBuffer->Des();

        aReadStream.ReadL( ptr ,length );

        }

    }

// --------------------------------------------------------------------------

// VPbkIPCPackage::InternalizeL

// --------------------------------------------------------------------------

// 

EXPORT_C void VPbkIPCPackage::InternalizeL

        ( HBufC8*& aBuffer, RDesReadStream& aReadStream,

          const TInt aPosition )

    {

    delete aBuffer;

    aBuffer = NULL;   

    // Read the non relevant parts of the package

    for ( TInt i=0; i < aPosition; ++ i )

        {

        TInt dummyLength = aReadStream.ReadUint32L();

        aReadStream.ReadL(dummyLength);

        }

    TInt length( aReadStream.ReadUint32L() );    

    if ( length > 0 )

        {

        aBuffer = HBufC8::NewL( length );        

        TPtr8 ptr = aBuffer->Des();

        aReadStream.ReadL( ptr ,length );

        }      

    }

// --------------------------------------------------------------------------

// VPbkIPCPackage::InternalizeL

// --------------------------------------------------------------------------

//     

EXPORT_C void VPbkIPCPackage::InternalizeL

        ( HBufC*& aBuffer,  RDesReadStream& aReadStream,

          const TInt aPosition )

    {

    delete aBuffer;

    aBuffer = NULL;

    // Read the non relevant parts of the package

    for ( TInt i=0; i < aPosition; ++ i )

        {

        TInt dummyLength = aReadStream.ReadUint32L();

        aReadStream.ReadL(dummyLength);

        }

    TInt length( aReadStream.ReadUint32L() );

    if ( length > 0 )

        {

        aBuffer = HBufC::NewL( length );        

        TPtr ptr = aBuffer->Des();

        aReadStream.ReadL( ptr ,length );

        }

    }

// --------------------------------------------------------------------------

// VPbkIPCPackage::CountPackageSize

// --------------------------------------------------------------------------

//

EXPORT_C TInt VPbkIPCPackage::CountPackageSize( const TDesC8* aBuffer )

    {

    if ( aBuffer )

        {        

        return aBuffer->Length() + KNumberSize;

        }

    return KNumberSize;        

    }

// --------------------------------------------------------------------------

// VPbkIPCPackage::CountPackagesLength

// --------------------------------------------------------------------------

//    

EXPORT_C TInt VPbkIPCPackage::CountPackageSize( const TDesC* aBuffer )

    {

    if ( aBuffer )

        { 

        return aBuffer->Length()*KDouble + KNumberSize;

        }

    return KNumberSize;        

    }

} /// namespace

// End of File