1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/kernelhwsrv/userlibandfileserver/fileserver/shostmassstorage/msproxy/tmsmemmap.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,57 @@
     1.4 +// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of the License "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +/**
    1.20 + @file
    1.21 + @internalTechnology
    1.22 +*/
    1.23 +
    1.24 +#ifndef TMSMEMMAP_H
    1.25 +#define TMSMEMMAP_H
    1.26 +
    1.27 +
    1.28 +
    1.29 +class TMsDataMemMap
    1.30 +	{
    1.31 +public:
    1.32 +    static const TInt KSectorSize = 0x200; // 512
    1.33 +    static const TInt KFormatSectorShift = 9;
    1.34 +
    1.35 +	TMsDataMemMap();
    1.36 +    void Reset();
    1.37 +
    1.38 +    void InitDataArea(TUint32 aFirstDataSector, TUint32 aNumSectors);
    1.39 +    void InitDataArea(TUint64 aSize);
    1.40 +
    1.41 +    TInt BlockLength() const;
    1.42 +    TUint64 DataSize() const;
    1.43 +
    1.44 +    TInt64 GetDataPos(TInt64 aPos) const;
    1.45 +    TInt TranslateDataPos(TInt64& aPos, TInt& aLength) const;
    1.46 +    TInt CheckBlockInRange(TInt64& aPos, TInt aLength) const;
    1.47 +
    1.48 +private:
    1.49 +    // Whole media
    1.50 +    // Size
    1.51 +    TUint64 iSize;
    1.52 +
    1.53 +    // Data Area
    1.54 +    // Offset
    1.55 +    TInt64 iDataOffset;
    1.56 +	};
    1.57 +
    1.58 +#include "tmsmemmap.inl"
    1.59 +
    1.60 +#endif // TMSMEMMAP_H