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// Copyright (c) 1998-2009 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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// e32\include\memmodel\emul\win32\memmodel.h
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//
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// WARNING: This file contains some APIs which are internal and are subject
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// to change without notice. Such APIs should therefore not be used
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// outside the Kernel and Hardware Services package.
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//
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/**
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@file
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@internalComponent
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*/
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#ifndef __WIN32_MEM_H__
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#define __WIN32_MEM_H__
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#include <win32.h>
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#include <plat_priv.h>
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#include <kernel/sshbuf.h>
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const TInt KRamChunkSize=0x10000;
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const TInt KRamChunkShift=16;
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const TInt KRamPageSize=0x1000;
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const TInt KRamPageShift=12;
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/********************************************
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* Thread Control Block
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********************************************/
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class DWin32Thread : public DThread
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{
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public:
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~DWin32Thread();
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virtual TInt Context(TDes8& aDes);
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virtual TInt SetupContext(SThreadCreateInfo& anInfo);
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virtual void DoExit2();
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};
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/********************************************
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* Process Control Block
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********************************************/
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class DWin32CodeSeg;
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class DWin32Chunk;
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struct SProcessDllDataBlock;
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class DWin32Process : public DProcess
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{
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public:
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DWin32Process();
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~DWin32Process();
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public:
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virtual TInt DoCreate(TBool aKernelProcess, TProcessCreateInfo& aInfo);
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virtual TInt NewChunk(DChunk*& aChunk, SChunkCreateInfo& aInfo, TLinAddr& aRunAddr);
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virtual TInt AddChunk(DChunk* aChunk,TBool isReadOnly);
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virtual TInt NewShPool(DShPool*& aPool, TShPoolCreateInfo& aInfo);
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virtual TInt CreateDataBssStackArea(TProcessCreateInfo& aInfo);
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virtual TInt GetNewThread(DThread*& aThread, SThreadCreateInfo& anInfo);
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virtual TInt AttachExistingCodeSeg(TProcessCreateInfo& aInfo);
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virtual TInt MapCodeSeg(DCodeSeg* aCodeSeg);
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virtual void UnmapCodeSeg(DCodeSeg* aCodeSeg);
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virtual void RemoveDllData();
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virtual void FinalRelease();
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virtual void Release();
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void CallRuntimeHook(TWin32RuntimeReason aReason);
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public:
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TWin32RuntimeHook iWin32RuntimeHook;
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RArray<SProcessDllDataBlock> iDllData;
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};
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/******************************************************************
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* structure to keep static data in code segments within a process
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******************************************************************/
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struct SProcessDllDataBlock
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{
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DWin32CodeSeg* iCodeSeg;
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TAny* iDataCopy; // copy of .data
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TAny* iBssCopy; // copy of .bss
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};
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/********************************************
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* Chunk Control Block
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********************************************/
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class DWin32Chunk : public DChunk
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{
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public:
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enum TMemModelChunkAttributes
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{
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EPrivate=0x10000000,
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EMMChunkAttributesMask = EPrivate,
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};
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public:
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~DWin32Chunk();
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public:
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virtual TInt DoCreate(SChunkCreateInfo& aInfo);
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virtual TInt Adjust(TInt aNewSize);
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virtual TInt AdjustDoubleEnded(TInt aBottom, TInt aTop);
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virtual TInt CheckAccess();
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virtual TInt Commit(TInt anOffset, TInt aSize, TCommitType aCommitType=DChunk::ECommitDiscontiguous, TUint32* aExtraArg=0);
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virtual TInt Allocate(TInt aSize, TInt aGuard=0, TInt aAlign=0);
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virtual TInt Decommit(TInt anOffset, TInt aSize);
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virtual TInt Lock(TInt anOffset, TInt aSize);
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virtual TInt Unlock(TInt anOffset, TInt aSize);
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virtual TInt Address(TInt aOffset, TInt aSize, TLinAddr& aKernelAddress);
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virtual TInt PhysicalAddress(TInt aOffset, TInt aSize, TLinAddr& aKernelAddress, TUint32& aPhysicalAddress, TUint32* aPhysicalPageList=NULL);
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virtual void BTracePrime(TInt aCategory);
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virtual void Substitute(TInt aOffset, TPhysAddr aOldAddr, TPhysAddr aNewAddr);
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virtual TUint8* Base(DProcess* aProcess);
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inline TUint8* Base() const { return DChunk::Base(); }
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private:
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TInt DoCommit(TInt aOffset, TInt aSize);
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void DoDecommit(TInt aOffset, TInt aSize);
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public:
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TBitMapAllocator* iPageBitMap;
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TBitMapAllocator* iUnlockedPageBitMap;
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TBitMapAllocator* iPermanentPageBitMap;
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};
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/********************************************
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* Code segment
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********************************************/
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class DModuleList;
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class DWin32CodeSeg: public DCodeSeg
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{
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public:
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DWin32CodeSeg();
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virtual ~DWin32CodeSeg();
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TInt ProcessImports(DProcess* aProcess);
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TInt CreateAlreadyLoaded(HMODULE aModule, TInt aDepCount);
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TInt RegisterCodeSeg(HMODULE aModule);
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TInt CopyDataBss();
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public:
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virtual TLibraryFunction Lookup(TInt aOrdinal);
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virtual TInt GetMemoryInfo(TModuleMemoryInfo& aInfo, DProcess* aProcess);
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virtual TInt DoCreate(TCodeSegCreateInfo& aInfo, DProcess* aProcess);
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virtual TInt Loaded(TCodeSegCreateInfo& aInfo);
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virtual void InitData();
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virtual void ReadExportDir(TUint32* aDest);
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virtual TBool FindCheck(DProcess* aProcess);
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virtual TBool OpenCheck(DProcess* aProcess);
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virtual void Info(TCodeSegCreateInfo& aInfo);
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public:
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HINSTANCE iWinInstance;
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HMODULE iModuleHandle;
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wchar_t* iModuleFile;
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TBool iAlwaysLoaded; // TRUE for variant or extension
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DModuleList* iModuleList;
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TAny* iDataCopy; // copy of .data
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TInt iRealDataSize;
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TInt iRealBssSize;
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TLinAddr iDataDest; // load address of .data
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TLinAddr iBssDest; // load address of .bss
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TInt iCodeSegId; // unique ID, incremented each time a code segment is loaded
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DWin32Process* iLiveProcess;// process who's static data is currently loaded in the codeseg
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};
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struct SWin32Module
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{
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TLinAddr iWin32ModuleHandle;
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DWin32CodeSeg* iCodeSeg;
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};
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/********************************************
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* Functions/Data defined in memory model
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********************************************/
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class MM
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{
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public:
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enum TMemModelPanic
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{
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EKernelHeapReserveFailed = 0,
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EKernelHeapCommitFailed = 1,
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ERamAllocMutexCreateFailed = 2,
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EInvalidChunkCreate = 3,
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EInvalidSharedModule = 4,
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ECompileDepLists=5,
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EWin32RuntimeError=6,
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ENotSupportedOnEmulator=7,
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EWsdBadReserve=8,
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EWsdDllNotInProcess=9,
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};
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static void Panic(TMemModelPanic aPanic);
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public:
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static void Init1();
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static void Wait();
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static void Signal();
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static TUint32 RoundToPageSize(TUint32 aSize);
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static TUint32 RoundToChunkSize(TUint32 aSize);
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static TInt RegisterModule(HMODULE aModule);
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static TInt Commit(TLinAddr aBase, TInt aSize, TInt aClearByte, TBool aExecute);
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static TInt Decommit(TLinAddr aBase, TInt aSize);
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static void CheckMemoryCounters();
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static void DoProcessSwitch(TAny* aAddressSpace);
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static TAny* CurrentAddress(DThread* aThread, const TAny* aPtr, TInt aSize, TBool aWrite, TBool& aLocked);
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public:
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static TAny* KernelHeapAddress;
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static DMutex* RamAllocatorMutex;
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static TInt RamChunkSize;
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static TInt RamChunkShift;
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static TInt RamPageSize;
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static TInt RamPageShift;
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static TInt FreeMemory; // number of bytes in the system free memory
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static TInt CacheMemory; // number of bytes of memory being used for cache chunks (RChunk::Unlock)
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static TInt ReclaimedCacheMemory; // number of bytes of memory removed from CacheMemory in order to satisfy memory allocation
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static TInt InitialFreeMemory;
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static TBool AllocFailed;
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static RArray<SWin32Module> Win32Modules;
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static TInt NextCodeSegId;
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};
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/********************************************
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* Shared buffers and pools
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********************************************/
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class DWin32ShBuf : public DShBuf
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{
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public:
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DWin32ShBuf(DShPool* aPool, TLinAddr aRelAddr);
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~DWin32ShBuf();
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TInt AddToProcess(DProcess* aProcess, TUint aAttr);
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TInt Close(TAny* aPtr);
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protected:
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virtual TInt Map(TUint, DProcess*, TLinAddr&);
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virtual TInt UnMap(DProcess*);
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virtual TUint8* Base(DProcess* aProcess);
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virtual TUint8* Base();
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private:
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TBool iMapped;
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};
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class DWin32ShPool : public DShPool
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{
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public:
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DWin32ShPool();
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virtual ~DWin32ShPool();
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TInt Close(TAny* aPtr);
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TInt AddToProcess(DProcess* aProcess, TUint aAttr);
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TInt Alloc(DShBuf*&);
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protected:
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TInt DoCreate(TShPoolCreateInfo& aInfo);
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TInt AddToFreeList(TInt aOffset);
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TInt CreateInitialBuffers();
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TInt DeleteInitialBuffers();
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TInt DestroyHandles(DProcess* aProcess);
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void DestroyClientResources(DProcess* aProcess);
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void Free(DShBuf* aBuf);
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TInt UpdateFreeList();
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TUint8* Base();
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TUint8* Base(DProcess* aProcess);
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TBool IsOpen(DProcess* aProcess);
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TBitMapAllocator* iBufMap;
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DWin32ShBuf* iInitialBuffersArray;
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TUint8* iWin32MemoryBase;
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TInt iWin32MemorySize;
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friend class DWin32ShBuf;
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};
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class DWin32AlignedShPool : public DWin32ShPool
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{
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public:
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DWin32AlignedShPool();
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virtual ~DWin32AlignedShPool();
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TInt SetBufferWindow(DProcess* aProcess, TInt aWindowSize);
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private:
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TInt DoCreate(TShPoolCreateInfo& aInfo);
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TInt GrowPool();
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TInt ShrinkPool();
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sl@0
|
295 |
};
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sl@0
|
296 |
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sl@0
|
297 |
|
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sl@0
|
298 |
class DWin32NonAlignedShPool : public DWin32ShPool
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sl@0
|
299 |
{
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sl@0
|
300 |
public:
|
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sl@0
|
301 |
DWin32NonAlignedShPool();
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sl@0
|
302 |
virtual ~DWin32NonAlignedShPool();
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sl@0
|
303 |
|
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sl@0
|
304 |
private:
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sl@0
|
305 |
TInt DoCreate(TShPoolCreateInfo& aInfo);
|
|
sl@0
|
306 |
void FreeBufferPages(TUint aOffset);
|
|
sl@0
|
307 |
TInt GrowPool();
|
|
sl@0
|
308 |
TInt ShrinkPool();
|
|
sl@0
|
309 |
|
|
sl@0
|
310 |
TBitMapAllocator* iPagesMap;
|
|
sl@0
|
311 |
};
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|
sl@0
|
312 |
|
|
sl@0
|
313 |
#endif // __WIN32_MEM_H__
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