userlibandfileserver/fileserver/shostmassstorage/msproxy/tmsmemmap.h
author Slion
Tue, 08 Dec 2009 08:11:42 +0100
branchanywhere
changeset 19 f6d3d9676ee4
parent 0 a41df078684a
child 89 1df514389a47
permissions -rw-r--r--
Trying to figure out how to implement my WINC like compatibility layer. Going the emulation way is probably not so smart. We should not use the kernel but rather hook native functions in the Exec calls.
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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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/**
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 @file
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 @internalTechnology
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*/
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#ifndef TMSMEMMAP_H
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#define TMSMEMMAP_H
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class TMsDataMemMap
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	{
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public:
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    static const TInt KSectorSize = 0x200; // 512
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    static const TInt KFormatSectorShift = 9;
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	TMsDataMemMap();
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    void Reset();
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    void InitDataArea(TUint32 aFirstDataSector, TUint32 aNumSectors);
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    void InitDataArea(TUint64 aSize);
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    TInt BlockLength() const;
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    TUint64 DataSize() const;
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    TInt64 GetDataPos(TInt64 aPos) const;
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    TInt TranslateDataPos(TInt64& aPos, TInt& aLength) const;
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    TInt CheckBlockInRange(TInt64& aPos, TInt aLength) const;
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private:
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    // Whole media
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    // Size
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    TUint64 iSize;
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    // Data Area
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    // Offset
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    TInt64 iDataOffset;
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	};
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#include "tmsmemmap.inl"
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#endif // TMSMEMMAP_H