author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 02:45:59 +0300 | |
changeset 55 | f2950aff7424 |
parent 48 | 516af714ebb4 |
child 54 | a151135b0cf9 |
permissions | -rw-r--r-- |
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// heaputils.h |
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// |
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// Copyright (c) 2010 Accenture. 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 "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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// Accenture - Initial contribution |
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// |
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#ifndef FSHELL_HEAP_UTILS_H |
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#define FSHELL_HEAP_UTILS_H |
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#include <e32cmn.h> |
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#ifdef __KERNEL_MODE__ |
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class DThread; |
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class DChunk; |
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#else |
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class RMemoryAccess; |
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#endif // __KERNEL_MODE__ |
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#if defined(STANDALONE_ALLOCHELPER) || defined(__KERNEL_MODE__) |
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#define HUIMPORT_C |
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#define HUCLASS(x) NONSHARABLE_CLASS(x) |
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#else |
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#define HUIMPORT_C IMPORT_C |
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#define HUCLASS(x) class x |
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#endif |
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namespace LtkUtils |
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{ |
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class THeapInfo; |
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HUCLASS(RAllocatorHelper) // class RAllocatorHelper |
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{ |
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public: |
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HUIMPORT_C RAllocatorHelper(); |
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#ifdef __KERNEL_MODE__ |
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TLinAddr GetKernelAllocator(DChunk* aKernelChunk); |
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TInt OpenKernelHeap(); |
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#else |
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HUIMPORT_C TInt Open(RAllocator* aAllocator); |
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#endif |
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HUIMPORT_C TInt SetCellNestingLevel(TAny* aCell, TInt aNestingLevel); |
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HUIMPORT_C TInt GetCellNestingLevel(TAny* aCell, TInt& aNestingLevel); |
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HUIMPORT_C TInt AllocCountForCell(TAny* aCell) const; |
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HUIMPORT_C TLinAddr AllocatorAddress() const; |
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HUIMPORT_C TInt RefreshDetails(); |
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HUIMPORT_C TInt CommittedSize(); |
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HUIMPORT_C TInt AllocatedSize(); |
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HUIMPORT_C TInt AllocationCount(); |
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HUIMPORT_C TInt MaxCommittedSize(); |
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HUIMPORT_C TInt MinCommittedSize(); |
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HUIMPORT_C TInt CountUnusedPages(); |
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HUIMPORT_C TInt CommittedFreeSpace(); |
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enum TCellType |
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{ |
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EAllocation, EFreeSpace, EBadness |
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}; |
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enum TExtendedCellType |
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{ |
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EAllocationMask = 0xFF, |
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EFreeMask = 0xFF00, |
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EBadnessMask = 0xFF000000, |
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EHeapAllocation = 1, |
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EDlaAllocation = 2, |
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EPageAllocation = 3, |
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ESlabAllocation = 4, |
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EHeapFreeCell = 0x0100, |
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EDlaFreeCell = 0x0200, |
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// There is nothing 'free' in the page allocator |
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ESlabFreeCell = 0x0300, // Used to track free cells in partially-filled slabs |
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ESlabFreeSlab = 0x0400, // Used to track entirely empty slabs (that don't have a specific cell size) |
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EHeapBadFreeCellAddress = 0x01000000, |
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EHeapBadFreeCellSize = 0x02000000, |
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EHeapBadAllocatedCellSize = 0x03000000, |
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EHeapBadAllocatedCellAddress = 0x04000000, |
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}; |
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// TBool WalkFunc(TAny* aContext, TCellType aCellType, TLinAddr aCellPtr, TInt aCellLength) |
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// aCellPtr points to the start of the cell payload for allocated cells (unlike RHeap's walker, which points to the cell header) |
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// aCellLength is the payload length, ie what AllocLen(aCellPtr) would return |
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// return ETrue to continue walking, EFalse to stop the walk |
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typedef TBool (*TWalkFunc)(TAny*, TCellType, TLinAddr, TInt); |
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typedef TBool (*TWalkFunc2)(RAllocatorHelper&, TAny*, TCellType, TLinAddr, TInt); |
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typedef TBool (*TWalkFunc3)(RAllocatorHelper&, TAny*, TExtendedCellType, TLinAddr, TInt); |
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HUIMPORT_C TInt Walk(TWalkFunc aCallbackFn, TAny* aContext); |
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HUIMPORT_C TInt Walk(TWalkFunc2 aCallbackFn, TAny* aContext); // Like the other but the walk func gives you the RAllocatorHelper pointer too |
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HUIMPORT_C TInt Walk(TWalkFunc3 aCallbackFn, TAny* aContext); // Like the other but the walk func gives you more details about the allocation type |
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HUIMPORT_C TInt SizeForCellType(TExtendedCellType aType); |
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HUIMPORT_C TInt CountForCellType(TExtendedCellType aType); |
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HUIMPORT_C TBool AllocatorIsUdeb() const; |
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HUIMPORT_C const TDesC& Description() const; |
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HUIMPORT_C virtual void Close(); |
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#ifdef __KERNEL_MODE__ |
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virtual DChunk* OpenUnderlyingChunk(); // Must be in CS |
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enum TType |
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{ |
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ETypeUnknown, |
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ETypeRHeap, |
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ETypeRHybridHeap, |
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}; |
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TType GetType() const; // This is for information only, nothing should care about the return value |
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#endif |
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protected: |
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TInt FinishConstruction(); |
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TInt IdentifyAllocatorType(TBool aAllocatorIsUdeb, TBool aIsTheKernelHeap=EFalse); |
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TInt OpenChunkHeap(TLinAddr aChunkBase, TInt aChunkMaxSize); |
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#ifndef __KERNEL_MODE__ |
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static TInt EuserIsUdeb(); |
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#endif |
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virtual TInt ReadData(TLinAddr aLocation, TAny* aResult, TInt aSize) const; |
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virtual TInt WriteData(TLinAddr aLocation, const TAny* aData, TInt aSize); |
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|
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#ifndef __KERNEL_MODE__ |
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protected: |
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#else |
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public: |
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#endif |
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virtual TInt TryLock(); |
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virtual void TryUnlock(); |
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|
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private: |
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TInt ReadWord(TLinAddr aLocation, TUint32& aResult) const; |
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TInt ReadByte(TLinAddr aLocation, TUint8& aResult) const; |
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TInt WriteWord(TLinAddr aLocation, TUint32 aWord); |
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TInt RefreshDetails(TUint aMask); |
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TInt DoRefreshDetails(TUint aMask); |
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TInt CheckValid(TUint aMask); |
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TInt DoWalk(TWalkFunc3 aCallbackFn, TAny* aContext); |
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TInt OldSkoolWalk(TWalkFunc3 aCallbackFn, TAny* aContext); |
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TInt NewHotnessWalk(TWalkFunc3 aCallbackFn, TAny* aContext); |
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static TBool DispatchClientWalkCallback(RAllocatorHelper& aHelper, TAny* aContext, TExtendedCellType aCellType, TLinAddr aCellPtr, TInt aCellLength); |
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static TBool WalkForStats(RAllocatorHelper& aSelf, TAny* aContext, TExtendedCellType aType, TLinAddr aCellPtr, TInt aCellLength); |
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TUint PageMapOperatorBrackets(unsigned ix, TInt& err) const; |
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TInt PageMapFind(TUint start, TUint bit, TInt& err); |
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TUint PageMapBits(unsigned ix, unsigned len, TInt& err); |
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TUint PagedDecode(TUint pos, TInt& err); |
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TInt TreeWalk(TUint32 aSlabRoot, TInt aSlabType, TWalkFunc3 aCallbackFn, TAny* aContext, TBool& shouldContinue); |
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protected: |
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TLinAddr iAllocatorAddress; |
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enum TAllocatorType |
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{ |
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EUnknown, |
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EAllocator, |
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EUrelOldRHeap, |
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EUdebOldRHeap, |
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161 |
EUrelHybridHeap, |
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EUdebHybridHeap, |
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}; |
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TAllocatorType iAllocatorType; |
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private: |
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THeapInfo* iInfo; |
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TUint iValidInfo; |
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TUint8* iTempSlabBitmap; |
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mutable TAny* iPageCache; |
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mutable TLinAddr iPageCacheAddr; |
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#ifdef __KERNEL_MODE__ |
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DChunk* iChunk; |
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//TUint iSpare[0]; |
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#else |
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TUint iSpare[1]; |
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#endif |
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}; |
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|
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179 |
#ifdef __KERNEL_MODE__ |
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|
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class RUserAllocatorHelper : public RAllocatorHelper |
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{ |
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public: |
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RUserAllocatorHelper(); |
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TInt OpenUserHeap(TUint aThreadId, TLinAddr aAllocatorAddress, TBool aEuserIsUdeb); |
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virtual DChunk* OpenUnderlyingChunk(); // Must be in CS |
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virtual void Close(); |
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protected: |
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virtual TInt ReadData(TLinAddr aLocation, TAny* aResult, TInt aSize) const; |
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virtual TInt WriteData(TLinAddr aLocation, const TAny* aData, TInt aSize); |
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virtual TInt TryLock(); |
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virtual void TryUnlock(); |
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private: |
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DThread* iThread; |
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}; |
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|
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class RKernelCopyAllocatorHelper : public RAllocatorHelper |
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{ |
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public: |
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RKernelCopyAllocatorHelper(); |
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TInt OpenCopiedHeap(DChunk* aOriginalChunk, DChunk* aCopiedChunk, TInt aOffset); |
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virtual DChunk* OpenUnderlyingChunk(); // Must be in CS |
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virtual void Close(); |
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protected: |
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virtual TInt ReadData(TLinAddr aLocation, TAny* aResult, TInt aSize) const; |
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virtual TInt WriteData(TLinAddr aLocation, const TAny* aData, TInt aSize); |
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virtual TInt TryLock(); |
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virtual void TryUnlock(); |
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private: |
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DChunk* iCopiedChunk; |
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TInt iOffset; // from the original kernel heap to the copied heap |
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}; |
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#else |
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class RProxyAllocatorHelper : public RAllocatorHelper |
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{ |
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public: |
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HUIMPORT_C RProxyAllocatorHelper(); |
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HUIMPORT_C TInt Open(RMemoryAccess& aMem, TUint aThreadId); |
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HUIMPORT_C TInt OpenChunkHeap(RMemoryAccess& aMem, TAny* aDChunkPtr); |
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HUIMPORT_C virtual void Close(); |
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protected: |
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virtual TInt ReadData(TLinAddr aLocation, TAny* aResult, TInt aSize) const; |
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virtual TInt WriteData(TLinAddr aLocation, const TAny* aData, TInt aSize); |
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virtual TInt TryLock(); |
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virtual void TryUnlock(); |
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private: |
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RMemoryAccess* iMemoryAccess; |
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TUint iThreadId; |
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}; |
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#endif // __KERNEL_MODE__ |
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} // namespace LtkUtils |
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#endif |