userlibandfileserver/fileserver/shostmassstorage/server/protocol/include/tblocktransfer.h
Convert Kernelhwsrv package from SFL to EPL
kernel\eka\compsupp is subject to the ARM EABI LICENSE
userlibandfileserver\fatfilenameconversionplugins\unicodeTables is subject to the Unicode license
kernel\eka\kernel\zlib is subject to the zlib license
// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "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
@internalTechnology
*/
#ifndef TBLOCKTRANSFER_H
#define TBLOCKTRANSFER_H
class MBlockTransferProtocol;
/**
Split the byte stream on block boundaries and transfer using
MBlockTransferProtocol interface in blocks
*/
class TBlockTransfer
{
public:
TBlockTransfer();
void ReadL(MBlockTransferProtocol& aProtocol,
TPos aPosition,
TInt aLength,
TDes8& aBuf);
void WriteL(MBlockTransferProtocol& aProtocol,
TPos aPosition,
TInt aLength,
TDesC8& aBuf);
TUint32 BlockLength() const;
void SetCapacity(TUint32 aBlockLength, TLba aLastLba);
private:
TPos GetHeadBlockOffset(TPos aPos);
TLba GetHeadBlockLbaL(TPos aPos);
TPos GetTailBlockOffset(TPos aPos, TInt aLen);
TLba GetTailBlockLbaL(TPos aPos, TInt aLen);
private:
/** Block Length */
TInt64 iBlockLength;
/** Last Logical Block Address */
TLba iLastLba;
};
/** Constructor */
inline TBlockTransfer::TBlockTransfer()
: iBlockLength(0)
{
}
/** return the Block Length */
inline TUint32 TBlockTransfer::BlockLength() const
{
return iBlockLength;
}
#endif // TBLOCKTRANSFER_H