1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 /**

    17  @file

    18  @internalTechnology

    19 */

    20 

    21 #ifndef TMSMEMMAP_H

    22 #define TMSMEMMAP_H

    23 

    24 

    25 

    26 class TMsDataMemMap

    27 	{

    28 public:

    29     static const TInt KSectorSize = 0x200; // 512

    30     static const TInt KFormatSectorShift = 9;

    31 

    32 	TMsDataMemMap();

    33     void Reset();

    34 

    35     void InitDataArea(TUint32 aFirstDataSector, TUint32 aNumSectors);

    36     void InitDataArea(TUint64 aSize);

    37 

    38     TInt BlockLength() const;

    39     TUint64 DataSize() const;

    40 

    41     TInt64 GetDataPos(TInt64 aPos) const;

    42     TInt TranslateDataPos(TInt64& aPos, TInt& aLength) const;

    43     TInt CheckBlockInRange(TInt64& aPos, TInt aLength) const;

    44 

    45 private:

    46     // Whole media

    47     // Size

    48     TUint64 iSize;

    49 

    50     // Data Area

    51     // Offset

    52     TInt64 iDataOffset;

    53 	};

    54 

    55 #include "tmsmemmap.inl"

    56 

    57 #endif // TMSMEMMAP_H