kernel/eka/memmodel/epoc/flexible/mshbuf.cpp
author Tom Cosgrove <tom.cosgrove@nokia.com>
Fri, 28 May 2010 16:29:07 +0100
changeset 30 8aab599e3476
parent 8 538db54a451d
permissions -rw-r--r--
Fix for bug 2283 (RVCT 4.0 support is missing from PDK 3.0.h) Have multiple extension sections in the bld.inf, one for each version of the compiler. The RVCT version building the tools will build the runtime libraries for its version, but make sure we extract all the other versions from zip archives. Also add the archive for RVCT4.
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// Copyright (c) 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/memmodel/epoc/flexible/mshbuf.cpp
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// Shareable Data Buffers
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#include <memmodel.h>
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#include "mmu/mm.h"
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#include "mmboot.h"
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#include <kernel/smap.h>
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_LIT(KLitDMemModelAlignedShPool,"DMMAlignedShPool");	// Must be no more than 16 characters!
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struct TWait
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	{
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	void Link(TWait*& aList)
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		{
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		iSem.SetOwner(NULL);
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		iNext = aList;
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		aList = this;
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		};
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	void Wait()
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		{
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		NKern::FSWait(&iSem);
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		}
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	NFastSemaphore iSem;
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	TWait* iNext;
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	static void SignalAll(TWait* aList)
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		{
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		while (aList)
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			{
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			TWait* next = aList->iNext;
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			NKern::FSSignal(&aList->iSem);
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			aList = next;
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			}
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		}
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	};
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class DShBufMapping : public DBase
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	{
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public:
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	SDblQueLink iObjLink;
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	DMemoryMapping* iMapping;
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	TInt iOsAsid;
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	TWait* iTransitions; // Mapping and Unmapping operations
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	TBool iTransitioning;
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	};
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DMemModelShPool::DMemModelShPool() : DShPool()
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	{
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	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelShPool::DMemModelShPool"));
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	}
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DMemModelShPool::~DMemModelShPool()
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	{
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	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelShPool::~DMemModelShPool"));
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	}
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void DMemModelShPool::DestroyClientResources(DProcess* aProcess)
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	{
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	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelShPool::DestroyClientResources"));
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	TInt r = DestroyAllMappingsAndReservedHandles(aProcess);
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	__NK_ASSERT_DEBUG((r == KErrNone) || (r == KErrDied));
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	(void)r;		// Silence warnings
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	}
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DMemModelAlignedShBuf::DMemModelAlignedShBuf(DShPool* aPool) : DShBuf(aPool)
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	{
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	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShBuf::DMemModelAlignedShBuf()"));
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	}
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TInt DMemModelAlignedShBuf::Construct()
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	{
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	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShBuf::Construct()"));
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	TInt r = KErrNone;
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	r = DShBuf::Construct();
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	if (r == KErrNone)
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		r = Create();
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	return r;
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	}
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TInt DMemModelAlignedShBuf::Close(TAny* aPtr)
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	{
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	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShBuf::Close(0x%08x)", aPtr));
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	if (aPtr)
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		{
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		DProcess* pP = reinterpret_cast<DProcess*>(aPtr);
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		UnMap(pP);
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		iPool->CloseClient(pP);
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		}
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	return DShBuf::Close(aPtr);
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	}
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TInt DMemModelAlignedShBuf::AddToProcess(DProcess* aProcess, TUint aAttr)
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	{
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	__KTRACE_OPT(KMMU,Kern::Printf("Adding DMemModelShBuf %O to process %O",this,aProcess));
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	TInt r;
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	TLinAddr base;
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	TUint flags;
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	r = iPool->OpenClient(aProcess, flags);
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	if (r == KErrNone)
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		{
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		if ((flags & EShPoolAutoMapBuf) && ((aAttr & EShPoolNoMapBuf) == 0))
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			{
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			// note we use the client's pool flags and not the buffer attributes
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			r = Map(flags, aProcess, base);
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			if (aProcess == K::TheKernelProcess)
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				iRelAddress = static_cast<TLinAddr>(base);
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			}
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		}
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	return r;
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	}
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TInt DMemModelAlignedShBuf::Create()
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	{
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	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShBuf::Create()"));
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	TInt r = KErrNone;
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	// calculate memory type...
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	TMemoryObjectType memoryType =  EMemoryObjectUnpaged;
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	TMemoryAttributes attr = EMemoryAttributeStandard;
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	// calculate memory flags...
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	TMemoryCreateFlags flags = static_cast<TMemoryCreateFlags>((EMemoryCreateDefault|EMemoryCreateUseCustomWipeByte|(0xAA<<EMemoryCreateWipeByteShift)));
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	// note that any guard pages will be included in iBufGap, however the amount of memory committed
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	// will be iBufSize rounded up to a page
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	r = MM::MemoryNew(iMemoryObject, memoryType, MM::RoundToPageCount(iPool->iBufGap), flags, attr);
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	if(r!=KErrNone)
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		return r;
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	if (iPool->iPoolFlags & EShPoolContiguous)
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		{
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		TPhysAddr paddr;
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		r = MM::MemoryAllocContiguous(iMemoryObject, 0, MM::RoundToPageCount(iPool->iBufSize), 0, paddr);
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		}
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	else
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		{
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		r = MM::MemoryAlloc(iMemoryObject, 0, MM::RoundToPageCount(iPool->iBufSize));
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		}
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	return r;
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	}
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DMemModelAlignedShBuf::~DMemModelAlignedShBuf()
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	{
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	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShBuf::~DMemModelAlignedShBuf()"));
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	__NK_ASSERT_DEBUG(iMappings.IsEmpty());
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	MM::MemoryDestroy(iMemoryObject);
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	}
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TInt DMemModelAlignedShBuf::Map(TUint aMapAttr, DProcess* aProcess, TLinAddr& aBase)
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	{
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	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShBuf::Map()"));
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	TInt r = KErrNone;
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	DShBufMapping* m = NULL;
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	DMemoryMapping* mapping = NULL;
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	DMemModelProcess* pP = reinterpret_cast<DMemModelProcess*>(aProcess);
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	TBool write = (TBool)EFalse;
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	// User = ETrue, ReadOnlyWrite = ETrue, Execute = EFalse
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	if (aMapAttr & EShPoolWriteable)
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		write = (TBool)ETrue;
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   194
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	TMappingPermissions perm = MM::MappingPermissions(pP!=K::TheKernelProcess, write, (TBool)EFalse);
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	TWait wait;
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	for(;;)
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		{
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		iPool->LockPool();
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		r = FindMapping(m, pP);
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		if (r != KErrNone)
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			break;
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   205
		
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		if (m->iTransitioning)
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			{
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			wait.Link(m->iTransitions);
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			iPool->UnlockPool();
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			wait.Wait();
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			}
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		else
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			{
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			iPool->UnlockPool();
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			return KErrAlreadyExists;
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			}
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		}
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   218
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	DMemModelAlignedShPoolClient* client = reinterpret_cast<DMemModelAlignedShPoolClient*>(iPool->iClientMap->Find(reinterpret_cast<TUint>(aProcess)));
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	__NK_ASSERT_DEBUG(client);
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   222
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	DMemModelAlignedShPool* pool = reinterpret_cast<DMemModelAlignedShPool*>(iPool);
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   224
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	__NK_ASSERT_DEBUG(m == NULL);
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	r = pool->GetFreeMapping(m, client);
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   227
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	if (r == KErrNone)
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		{
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		iMappings.AddHead(&m->iObjLink);
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		m->iTransitioning = ETrue;
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   232
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		mapping = m->iMapping;
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		iPool->UnlockPool(); // have to release fast lock for MappingMap
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		r = MM::MappingMap(mapping, perm, iMemoryObject, 0, MM::RoundToPageCount(pool->iBufSize));
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   237
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		iPool->LockPool();
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   239
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		TWait* list = m->iTransitions;
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		m->iTransitions = NULL;
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   242
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		if (r != KErrNone)
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		    pool->ReleaseMapping(m, client);
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   245
		else
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   246
		    aBase = MM::MappingBase(mapping);
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   247
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		m->iTransitioning = EFalse;
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   249
		iPool->UnlockPool();
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   250
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		TWait::SignalAll(list);
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   252
		}
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   253
	else
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   254
		iPool->UnlockPool();
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   255
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	return r;
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   257
	}
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   258
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   259
TInt DMemModelAlignedShBuf::FindMapping(DShBufMapping*& aMapping, DMemModelProcess* aProcess)
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	{
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   261
	// Must be in critical section so we don't leak os asid references.
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	__ASSERT_CRITICAL;
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   263
	__NK_ASSERT_DEBUG(iPool->iLock.HeldByCurrentThread());
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   264
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   265
	TInt r = KErrNotFound;
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   266
	aMapping = NULL;
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   267
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	// Open a reference on aProcess's os asid so that it can't be freed and 
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	// reused while searching.
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	TInt osAsid = aProcess->TryOpenOsAsid();
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   271
	if (osAsid < 0)
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		{// aProcess has died and freed its os asid.
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		return KErrDied;
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   274
		}
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   275
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	SDblQueLink* pLink = iMappings.First();
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   277
	SDblQueLink* end = reinterpret_cast<SDblQueLink*>(&iMappings);
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   278
	DShBufMapping* m = NULL;
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   279
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   280
	while (pLink != end)
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   281
		{
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   282
		m = _LOFF(pLink, DShBufMapping, iObjLink);
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   283
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   284
		if (m->iOsAsid == osAsid)
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   285
			{
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   286
			aMapping = m;
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   287
			r = KErrNone;
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   288
			break;
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   289
			}
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   290
		pLink = pLink->iNext;
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   291
		}
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   292
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   293
	// Close the reference on the os asid as if we have a mapping then its lifetime will 
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   294
	// determine whether the process still owns an os asid.
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   295
	aProcess->CloseOsAsid();	
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   296
	return r;
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   297
	}
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   298
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   299
TInt DMemModelAlignedShBuf::UnMap(DProcess* aProcess)
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   300
	{
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   301
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShBuf::UnMap()"));
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   302
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   303
	TInt r = KErrNone;
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   304
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   305
	DMemModelProcess* pP = reinterpret_cast<DMemModelProcess*>(aProcess);
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   306
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   307
	DShBufMapping* m = NULL;
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   308
	TWait wait;
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   309
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   310
	for(;;)
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   311
		{
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   312
		iPool->LockPool();
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   313
		r = FindMapping(m, pP);
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   314
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   315
		if (r != KErrNone)
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   316
			{
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   317
			iPool->UnlockPool();
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   318
			return KErrNotFound;
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   319
			}
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   320
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   321
		if (m->iTransitioning)
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   322
			{
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   323
			wait.Link(m->iTransitions);
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   324
			iPool->UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   325
			wait.Wait();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   326
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   327
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   328
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   329
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   330
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   331
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   332
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   333
	m->iTransitioning = ETrue;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   334
	iPool->UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   335
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   336
	MM::MappingUnmap(m->iMapping);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   337
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   338
	iPool->LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   339
	DMemModelAlignedShPoolClient* client = reinterpret_cast<DMemModelAlignedShPoolClient*>(iPool->iClientMap->Find(reinterpret_cast<TUint>(aProcess)));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   340
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   341
	__NK_ASSERT_DEBUG(client);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   342
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   343
	TWait* list = m->iTransitions;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   344
	m->iTransitions = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   345
	m->iObjLink.Deque();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   346
	m->iTransitioning = EFalse;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   347
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   348
	DMemModelAlignedShPool* pool = reinterpret_cast<DMemModelAlignedShPool*>(iPool);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   349
	pool->ReleaseMapping(m, client);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   350
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   351
	if (aProcess == K::TheKernelProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   352
	    iRelAddress = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   353
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   354
	iPool->UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   355
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   356
	wait.SignalAll(list);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   357
	return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   358
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   359
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   360
TUint8* DMemModelAlignedShBuf::Base(DProcess* aProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   361
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   362
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShBuf::Base()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   363
	DMemModelProcess* pP = reinterpret_cast<DMemModelProcess*>(aProcess);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   364
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   365
	DShBufMapping* mapping = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   366
	iPool->LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   367
	TInt r = FindMapping(mapping, pP);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   368
	TUint8* base = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   369
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   370
	if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   371
		base = reinterpret_cast<TUint8*>(MM::MappingBase(mapping->iMapping));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   372
	iPool->UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   373
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   374
	return base;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   375
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   376
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   377
TUint8* DMemModelAlignedShBuf::Base()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   378
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   379
	return reinterpret_cast<TUint8*>(iRelAddress);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   380
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   381
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   382
TInt DMemModelAlignedShBuf::Pin(TPhysicalPinObject* aPinObject, TBool aReadOnly, TPhysAddr& aAddress, TPhysAddr* aPages, TUint32& aMapAttr, TUint& aColour)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   383
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   384
	CHECK_PRECONDITIONS(MASK_THREAD_CRITICAL,"DMemModelAlignedShBuf::Pin");
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   385
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   386
	TInt r = MM::PinPhysicalMemory(iMemoryObject, (DPhysicalPinMapping*)aPinObject, 0,
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   387
								   MM::RoundToPageCount(Size()),
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   388
								   aReadOnly, aAddress, aPages, aMapAttr, aColour);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   389
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   390
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   391
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   392
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   393
TInt DMemModelAlignedShPool::GetFreeMapping(DShBufMapping*& aMapping, DMemModelAlignedShPoolClient* aClient)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   394
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   395
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::GetFreeMapping()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   396
	__NK_ASSERT_DEBUG(iLock.HeldByCurrentThread());
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   397
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   398
	TInt r = KErrNotFound;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   399
	aMapping = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   400
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   401
	if (aClient)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   402
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   403
		if (!aClient->iMappingFreeList.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   404
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   405
			aMapping = _LOFF(aClient->iMappingFreeList.GetFirst(), DShBufMapping, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   406
			r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   407
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   408
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   409
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   410
			r = KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   411
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   412
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   413
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   414
	__KTRACE_OPT(KMMU2, Kern::Printf("DMemModelAlignedShPool::GetFreeMapping(0x%08x, 0x%08x) returns %d", aMapping, aClient, r));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   415
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   416
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   417
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   418
TInt DMemModelAlignedShPool::ReleaseMapping(DShBufMapping*& aMapping, DMemModelAlignedShPoolClient* aClient)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   419
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   420
	__KTRACE_OPT(KMMU2, Kern::Printf("DMemModelAlignedShPool::ReleaseMapping(0x%08x,0x%08x)",aMapping,aClient));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   421
	__NK_ASSERT_DEBUG(iLock.HeldByCurrentThread());
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   422
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   423
	TInt r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   424
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   425
	if (aClient)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   426
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   427
		aClient->iMappingFreeList.AddHead(&aMapping->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   428
		aMapping = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   429
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   430
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   431
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   432
		// pool has probably been closed delete mapping
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   433
		r = KErrNotFound;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   434
		__KTRACE_OPT(KMMU2, Kern::Printf("DMemModelAlignedShPool::ReleaseMapping delete 0x%08x",aMapping));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   435
		UnlockPool(); // have to release fast lock for MappingDestroy
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   436
		MM::MappingDestroy(aMapping->iMapping);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   437
		delete aMapping;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   438
		aMapping = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   439
		LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   440
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   441
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   442
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   443
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   444
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   445
TInt DMemModelAlignedShPool::SetBufferWindow(DProcess* aProcess, TInt aWindowSize)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   446
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   447
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::SetBufferWindow()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   448
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   449
	// Create and construct mappings but do not map
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   450
	// also allocate reserved handles
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   451
	TInt r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   452
	TUint noOfBuffers = aWindowSize;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   453
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   454
	if (aWindowSize > static_cast<TInt>(iMaxBuffers))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   455
		return KErrArgument;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   456
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   457
	Kern::MutexWait(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   458
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   459
	LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   460
	DMemModelAlignedShPoolClient* client = reinterpret_cast<DMemModelAlignedShPoolClient*>(iClientMap->Find(reinterpret_cast<TUint>(aProcess)));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   461
	UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   462
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   463
	if (client)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   464
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   465
		if (client->iWindowSize != 0)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   466
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   467
			Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   468
			return KErrAlreadyExists;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   469
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   470
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   471
		if (aWindowSize < 0)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   472
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   473
			noOfBuffers = iTotalBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   474
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   475
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   476
		DMemModelProcess* pP = reinterpret_cast<DMemModelProcess*>(aProcess);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   477
		r = CreateMappings(client, noOfBuffers, pP);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   478
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   479
		if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   480
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   481
			client->iWindowSize = aWindowSize;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   482
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   483
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   484
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   485
			DestroyMappings(client, noOfBuffers);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   486
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   487
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   488
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   489
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   490
		r = KErrNotFound;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   491
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   492
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   493
	Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   494
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   495
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   496
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   497
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   498
TInt DMemModelAlignedShPool::MappingNew(DShBufMapping*& aMapping, DMemModelProcess* aProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   499
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   500
	// Must be in critical section so we don't leak os asid references.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   501
	__ASSERT_CRITICAL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   502
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   503
	TMappingCreateFlags flags=EMappingCreateDefault;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   504
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   505
	FlagSet(flags, EMappingCreateReserveAllResources);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   506
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   507
	// Open a reference to aProcess's os so it isn't freed and reused while
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   508
	// we're creating this mapping.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   509
	TInt osAsid = aProcess->TryOpenOsAsid();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   510
	if (osAsid < 0)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   511
		{// The process has freed its os asid so can't create a new mapping.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   512
		return KErrDied;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   513
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   514
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   515
	DMemoryMapping* mapping = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   516
	DShBufMapping* m = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   517
	TInt r = MM::MappingNew(mapping, MM::RoundToPageCount(iBufGap), osAsid, flags);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   518
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   519
	if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   520
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   521
		m = new DShBufMapping;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   522
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   523
		if (m)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   524
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   525
			m->iMapping = mapping;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   526
			m->iOsAsid = osAsid;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   527
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   528
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   529
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   530
			MM::MappingDestroy(mapping);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   531
			r = KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   532
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   533
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   534
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   535
	// Close the reference on the os asid as while aMapping is valid then the 
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   536
	// os asid must be also.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   537
	aProcess->CloseOsAsid();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   538
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   539
	aMapping = m;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   540
	__KTRACE_OPT(KMMU2, Kern::Printf("DMemModelAlignedShPool::MappingNew returns 0x%08x,%d",aMapping,r));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   541
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   542
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   543
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   544
TInt DMemModelAlignedShPool::AddToProcess(DProcess* aProcess, TUint aAttr)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   545
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   546
	__KTRACE_OPT(KMMU,Kern::Printf("Adding DMemModelAlignedShPool %O to process %O",this,aProcess));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   547
	TInt r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   548
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   549
	Kern::MutexWait(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   550
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   551
	LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   552
	DShPoolClient* client = reinterpret_cast<DShPoolClient*>(iClientMap->Find(reinterpret_cast<TUint>(aProcess)));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   553
	UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   554
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   555
	if (!client)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   556
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   557
		client = new DMemModelAlignedShPoolClient;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   558
		if (client)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   559
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   560
			client->iFlags = aAttr;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   561
			r = iClientMap->Add(reinterpret_cast<TUint>(aProcess), client);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   562
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   563
			if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   564
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   565
				if (aProcess != K::TheKernelProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   566
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   567
					r = aProcess->iHandles.Reserve(iTotalBuffers);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   568
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   569
					if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   570
						{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   571
						iClientMap->Remove(reinterpret_cast<TUint>(aProcess));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   572
						}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   573
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   574
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   575
			if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   576
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   577
				delete client;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   578
				r = KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   579
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   580
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   581
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   582
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   583
			r = KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   584
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   585
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   586
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   587
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   588
		LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   589
		client->iAccessCount++;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   590
		UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   591
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   592
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   593
	Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   594
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   595
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   596
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   597
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   598
DMemModelAlignedShPool::DMemModelAlignedShPool() :	DMemModelShPool()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   599
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   600
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   601
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::DMemModelAlignedShPool"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   602
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   603
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   604
void DMemModelAlignedShPool::Free(DShBuf* aBuf)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   605
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   606
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::Free (aBuf = 0x%08x)", aBuf));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   607
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   608
	LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   609
#ifdef _DEBUG
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   610
	// Remove from allocated list
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   611
	aBuf->iObjLink.Deque();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   612
#endif
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   613
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   614
	DMemModelAlignedShBuf* buf = reinterpret_cast<DMemModelAlignedShBuf*>(aBuf);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   615
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   616
	if (MM::MemoryIsNotMapped(buf->iMemoryObject))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   617
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   618
		UnlockPool(); // have to release fast mutex
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   619
		MM::MemoryWipe(buf->iMemoryObject);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   620
		LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   621
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   622
		// we want to put the initial buffers at the head of the free list
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   623
		// and the grown buffers at the tail as this makes shrinking more efficient
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   624
		if (aBuf >= iInitialBuffersArray && aBuf < (iInitialBuffersArray + iInitialBuffers))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   625
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   626
			iFreeList.AddHead(&aBuf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   627
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   628
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   629
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   630
			iFreeList.Add(&aBuf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   631
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   632
		++iFreeBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   633
#ifdef _DEBUG
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   634
		--iAllocatedBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   635
#endif
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   636
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   637
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   638
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   639
		iPendingList.Add(&aBuf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   640
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   641
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   642
	iPoolFlags &= ~EShPoolSuppressShrink;		// Allow shrinking again, if it was blocked
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   643
	UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   644
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   645
	// queue ManagementDfc which completes notifications as appropriate
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   646
	if (HaveWorkToDo())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   647
		KickManagementDfc();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   648
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   649
	DShPool::Close(NULL); // decrement pool reference count
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   650
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   651
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   652
TInt DMemModelAlignedShPool::UpdateFreeList()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   653
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   654
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::UpdateFreeList"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   655
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   656
	LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   657
	SDblQueLink* pLink = iPendingList.First();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   658
	UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   659
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   660
	SDblQueLink* anchor = &iPendingList.iA;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   661
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   662
	while (pLink != anchor)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   663
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   664
		DMemModelAlignedShBuf* buf = _LOFF(pLink, DMemModelAlignedShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   665
		LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   666
		pLink = pLink->iNext;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   667
		UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   668
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   669
		if (MM::MemoryIsNotMapped(buf->iMemoryObject))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   670
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   671
			LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   672
			buf->iObjLink.Deque();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   673
			UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   674
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   675
			MM::MemoryWipe(buf->iMemoryObject);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   676
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   677
			LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   678
			if (buf >= iInitialBuffersArray && buf < (iInitialBuffersArray + iInitialBuffers))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   679
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   680
				iFreeList.AddHead(&buf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   681
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   682
			else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   683
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   684
				iFreeList.Add(&buf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   685
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   686
			++iFreeBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   687
#ifdef _DEBUG
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   688
			--iAllocatedBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   689
#endif
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   690
			UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   691
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   692
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   693
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   694
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelAlignedShPool::UpdateFreeList"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   695
	return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   696
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   697
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   698
DMemModelAlignedShPool::~DMemModelAlignedShPool()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   699
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   700
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::~DMemModelAlignedShPool"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   701
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   702
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   703
TInt DMemModelAlignedShPool::DoCreate(TShPoolCreateInfo& aInfo)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   704
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   705
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   706
	TUint64 maxSize64 = static_cast<TUint64>(aInfo.iInfo.iMaxBufs) * static_cast<TUint64>(iBufGap);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   707
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   708
	if (maxSize64 > static_cast<TUint64>(KMaxTInt) || maxSize64 <= static_cast<TUint64>(0))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   709
		return KErrArgument;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   710
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   711
	iMaxPages = MM::RoundToPageCount(static_cast<TInt>(maxSize64));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   712
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   713
	return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   714
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   715
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   716
TInt DMemModelAlignedShPool::DestroyAllMappingsAndReservedHandles(DProcess* aProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   717
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   718
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::DestroyAllMappingsAndReservedHandles(0x%08x)", aProcess));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   719
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   720
	TInt r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   721
	Kern::MutexWait(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   722
	DMemModelAlignedShPoolClient* client = reinterpret_cast<DMemModelAlignedShPoolClient*>(iClientMap->Remove(reinterpret_cast<TUint>(aProcess)));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   723
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   724
	__NK_ASSERT_DEBUG(client);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   725
	__NK_ASSERT_DEBUG(client->iAccessCount == 0);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   726
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   727
	DestroyMappings(client, KMaxTInt);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   728
	delete client;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   729
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   730
	if (aProcess != K::TheKernelProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   731
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   732
		// Remove reserved handles
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   733
		r = aProcess->iHandles.Reserve(-iTotalBuffers);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   734
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   735
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   736
	Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   737
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   738
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelAlignedShPool::DestroyAllMappingsAndReservedHandles(0x%08x)", aProcess));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   739
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   740
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   741
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   742
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   743
TInt DMemModelAlignedShPool::DestroyMappings(DMemModelAlignedShPoolClient* aClient, TInt aNoOfMappings)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   744
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   745
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::DestroyMappings(0x%08x)", aClient));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   746
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   747
	TInt r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   748
	TInt i = 0;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   749
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   750
	DShBufMapping* m = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   751
	SDblQueLink* pLink = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   752
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   753
	while (i < aNoOfMappings && !aClient->iMappingFreeList.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   754
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   755
		LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   756
		pLink = aClient->iMappingFreeList.GetFirst();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   757
		UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   758
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   759
		if (pLink == NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   760
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   761
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   762
		m = _LOFF(pLink, DShBufMapping, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   763
		__KTRACE_OPT(KMMU2, Kern::Printf("DMemModelAlignedShPool::DestroyMappings delete 0x%08x",m));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   764
		MM::MappingClose(m->iMapping);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   765
		delete m;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   766
		++i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   767
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   768
8
538db54a451d Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents: 0
diff changeset
   769
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelAlignedShPool::DestroyMappings"));
0
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   770
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   771
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   772
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   773
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   774
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   775
TInt DMemModelAlignedShPool::CreateMappings(DMemModelAlignedShPoolClient* aClient, TInt aNoOfMappings, DMemModelProcess* aProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   776
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   777
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::CreateMappings"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   778
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   779
	__ASSERT_MUTEX(iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   780
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   781
	TInt r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   782
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   783
	for (TInt i = 0; i < aNoOfMappings; ++i)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   784
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   785
		DShBufMapping* mapping;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   786
		r = MappingNew(mapping, aProcess);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   787
		if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   788
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   789
			LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   790
			aClient->iMappingFreeList.AddHead(&mapping->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   791
			UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   792
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   793
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   794
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   795
			r = KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   796
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   797
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   798
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   799
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   800
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   801
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   802
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   803
TInt DMemModelAlignedShPool::UpdateMappingsAndReservedHandles(TInt aNoOfBuffers)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   804
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   805
	__KTRACE_OPT(KMMU2, Kern::Printf(">DMemModelAlignedShPool::UpdateMappingsAndReservedHandles(0x%08x)", aNoOfBuffers));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   806
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   807
	SMap::TIterator iter(*iClientMap);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   808
	SMap::TEntry* entry;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   809
	SMap::TEntry* lastEntry = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   810
	DMemModelProcess* pP;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   811
	DMemModelAlignedShPoolClient* client;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   812
	TInt result = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   813
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   814
	Kern::MutexWait(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   815
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   816
	// First handle the case of increasing allocation
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   817
	if (aNoOfBuffers > 0)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   818
		while ((entry = iter.Next()) != lastEntry)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   819
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   820
			// Try to update handle reservation; skip if process is null or has gone away
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   821
			client = (DMemModelAlignedShPoolClient*)(entry->iObj);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   822
			pP = (DMemModelProcess*)(entry->iKey);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   823
			if (!pP)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   824
				continue;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   825
			TInt r = pP->iHandles.Reserve(aNoOfBuffers);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   826
			if (r)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   827
				__KTRACE_OPT(KMMU2, Kern::Printf("?DMemModelAlignedShPool::UpdateMappingsAndReservedHandles(0x%08x) Reserve failed %d", aNoOfBuffers, r));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   828
			if (r == KErrDied)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   829
				continue;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   830
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   831
			if (r == KErrNone && client->iWindowSize <= 0)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   832
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   833
				// A positive window size means the number of mappings is fixed, so we don't need to reserve more.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   834
				// But here zero or negative means a variable number, so we need to create extra mappings now.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   835
				r = CreateMappings(client, aNoOfBuffers, pP);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   836
				if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   837
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   838
					__KTRACE_OPT(KMMU2, Kern::Printf("?DMemModelAlignedShPool::UpdateMappingsAndReservedHandles(0x%08x) CreateMappings failed %d", aNoOfBuffers, r));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   839
					pP->iHandles.Reserve(-aNoOfBuffers); // Creation failed, so release the handles reserved above
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   840
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   841
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   842
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   843
			if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   844
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   845
				// Some problem; cleanup as best we can by falling into the loop below to undo what we've done
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   846
				result = r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   847
				iter.Reset();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   848
				lastEntry = entry;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   849
				aNoOfBuffers = -aNoOfBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   850
				break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   851
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   852
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   853
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   854
	// Now handle the case of decreasing allocation; also used for recovery from errors, in which case
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   855
	// this loop iterates only over the elements that were *successfully* processed by the loop above
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   856
	if (aNoOfBuffers < 0)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   857
		while ((entry = iter.Next()) != lastEntry)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   858
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   859
			// Try to update handle reservation; skip if process is null or has gone away
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   860
			client = (DMemModelAlignedShPoolClient*)(entry->iObj);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   861
			pP = (DMemModelProcess*)(entry->iKey);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   862
			if (!pP)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   863
				continue;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   864
			TInt r = pP->iHandles.Reserve(aNoOfBuffers);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   865
			if (r == KErrDied)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   866
				continue;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   867
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   868
			if (r == KErrNone && client->iWindowSize <= 0)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   869
				r = DestroyMappings(client, -aNoOfBuffers);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   870
			// De-allocation by Reserve(-n) and/or DestroyMappings() should never fail
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   871
			if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   872
				Kern::PanicCurrentThread(KLitDMemModelAlignedShPool, r);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   873
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   874
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   875
	Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   876
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   877
	__KTRACE_OPT(KMMU2, Kern::Printf("<DMemModelAlignedShPool::UpdateMappingsAndReservedHandles(0x%08x) returning %d", aNoOfBuffers, result));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   878
	return result;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   879
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   880
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   881
TInt DMemModelAlignedShPool::DeleteInitialBuffers()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   882
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   883
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::DeleteInitialBuffers"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   884
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   885
	if (iInitialBuffersArray != NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   886
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   887
		for (TUint i = 0; i < iInitialBuffers; i++)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   888
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   889
			iInitialBuffersArray[i].iObjLink.Deque(); // remove from free list
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   890
			iInitialBuffersArray[i].Dec();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   891
			iInitialBuffersArray[i].~DMemModelAlignedShBuf();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   892
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   893
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   894
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   895
	Kern::Free(iInitialBuffersArray);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   896
	iInitialBuffersArray = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   897
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   898
	return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   899
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   900
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   901
TInt DMemModelAlignedShPool::Close(TAny* aPtr)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   902
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   903
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::Close(0x%08x)", aPtr));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   904
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   905
	if (aPtr)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   906
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   907
		DProcess* pP = reinterpret_cast<DProcess*>(aPtr);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   908
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   909
		CloseClient(pP);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   910
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   911
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelAlignedShPool::Close(0x%08x)", aPtr));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   912
	return DShPool::Close(aPtr);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   913
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   914
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   915
TInt DMemModelAlignedShPool::CreateInitialBuffers()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   916
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   917
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::CreateInitialBuffers"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   918
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   919
	iInitialBuffersArray = reinterpret_cast<DMemModelAlignedShBuf*>(Kern::Alloc(iInitialBuffers * sizeof(DMemModelAlignedShBuf)));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   920
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   921
	if (iInitialBuffersArray == NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   922
		return KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   923
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   924
	for (TUint i = 0; i < iInitialBuffers; i++)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   925
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   926
		// always use kernel linear address in DShBuf
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   927
		DMemModelAlignedShBuf *buf = new (&iInitialBuffersArray[i]) DMemModelAlignedShBuf(this);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   928
		TInt r = buf->Construct();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   929
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   930
		if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   931
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   932
			iFreeList.Add(&buf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   933
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   934
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   935
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   936
			iInitialBuffers = i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   937
			return KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   938
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   939
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   940
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   941
	iFreeBuffers  = iInitialBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   942
	iTotalBuffers = iInitialBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   943
	return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   944
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   945
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   946
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   947
TInt DMemModelAlignedShPool::GrowPool()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   948
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   949
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::GrowPool()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   950
	TInt r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   951
	SDblQue temp;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   952
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   953
	Kern::MutexWait(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   954
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   955
	TUint32 headroom = iMaxBuffers - iTotalBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   956
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   957
	// How many buffers to grow by?
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   958
	TUint32 grow = mult_fx248(iTotalBuffers, iGrowByRatio);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   959
	if (grow == 0)			// Handle round-to-zero
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   960
		grow = 1;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   961
	if (grow > headroom)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   962
		grow = headroom;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   963
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   964
	TUint i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   965
	for (i = 0; i < grow; ++i)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   966
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   967
		DMemModelAlignedShBuf *buf = new DMemModelAlignedShBuf(this);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   968
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   969
		if (buf == NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   970
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   971
			r = KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   972
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   973
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   974
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   975
		TInt r = buf->Construct();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   976
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   977
		if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   978
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   979
			buf->DObject::Close(NULL);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   980
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   981
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   982
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   983
		temp.Add(&buf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   984
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   985
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   986
	r = UpdateMappingsAndReservedHandles(i);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   987
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   988
	if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   989
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   990
		LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   991
		iFreeList.MoveFrom(&temp);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   992
		iFreeBuffers += i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   993
		iTotalBuffers += i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   994
		UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   995
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   996
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   997
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   998
		// couldn't create either the mappings or reserve handles so have no choice but to
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
   999
		// delete the buffers
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1000
		SDblQueLink *pLink;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1001
		while ((pLink = temp.GetFirst()) != NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1002
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1003
			DShBuf* buf = _LOFF(pLink, DShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1004
			buf->DObject::Close(NULL);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1005
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1006
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1007
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1008
	CalculateGrowShrinkTriggers();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1009
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1010
	Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1011
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1012
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelAlignedShPool::GrowPool()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1013
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1014
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1015
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1016
TInt DMemModelAlignedShPool::ShrinkPool()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1017
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1018
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::ShrinkPool()"))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1019
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1020
	Kern::MutexWait(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1021
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1022
	TUint32 grownBy = iTotalBuffers - iInitialBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1023
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1024
	// How many buffers to shrink by?
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1025
	TUint32 shrink = mult_fx248(iTotalBuffers, iShrinkByRatio);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1026
	if (shrink == 0)		// Handle round-to-zero
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1027
		shrink = 1;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1028
	if (shrink > grownBy)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1029
		shrink = grownBy;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1030
	if (shrink > iFreeBuffers)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1031
		shrink = iFreeBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1032
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1033
	// work backwards as the grown buffers should be at the back
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1034
	TUint i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1035
	for (i = 0; i < shrink; i++)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1036
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1037
		LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1038
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1039
		if (iFreeList.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1040
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1041
			UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1042
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1043
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1044
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1045
		DShBuf* buf = _LOFF(iFreeList.Last(), DShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1046
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1047
		// can't delete initial buffers
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1048
		if (buf >= iInitialBuffersArray && buf < (iInitialBuffersArray + iInitialBuffers))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1049
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1050
			UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1051
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1052
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1053
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1054
		buf->iObjLink.Deque();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1055
		--iFreeBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1056
		--iTotalBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1057
		UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1058
		buf->DObject::Close(NULL);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1059
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1060
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1061
	TInt r = UpdateMappingsAndReservedHandles(-i);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1062
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1063
	// If we couldn't shrink the pool by this many buffers, wait until we Free() another
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1064
	// buffer before trying to shrink again.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1065
	if (i < shrink)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1066
		iPoolFlags |= EShPoolSuppressShrink;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1067
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1068
	CalculateGrowShrinkTriggers();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1069
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1070
	Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1071
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1072
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelAlignedShPool::ShrinkPool()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1073
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1074
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1075
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1076
// Kernel side API
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1077
TInt DMemModelAlignedShPool::Alloc(DShBuf*& aShBuf)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1078
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1079
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelAlignedShPool::Alloc (DShBuf)"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1080
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1081
	TInt r = KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1082
	aShBuf = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1083
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1084
	LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1085
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1086
	if (!iFreeList.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1087
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1088
		aShBuf = _LOFF(iFreeList.GetFirst(), DShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1089
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1090
#ifdef _DEBUG
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1091
		iAllocated.Add(&aShBuf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1092
		iAllocatedBuffers++;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1093
#endif
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1094
		--iFreeBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1095
		Open(); // increment pool reference count
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1096
		r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1097
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1098
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1099
	UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1100
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1101
	if (HaveWorkToDo())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1102
		KickManagementDfc();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1103
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1104
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelAlignedShPool::Alloc return buf = 0x%08x", aShBuf));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1105
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1106
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1107
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1108
DMemModelNonAlignedShBuf::DMemModelNonAlignedShBuf(DShPool* aPool, TLinAddr aRelAddr) : DShBuf(aPool, aRelAddr)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1109
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1110
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShBuf::DMemModelNonAlignedShBuf()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1111
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1112
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1113
DMemModelNonAlignedShBuf::~DMemModelNonAlignedShBuf()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1114
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1115
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShBuf::~DMemModelNonAlignedShBuf()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1116
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1117
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1118
TInt DMemModelNonAlignedShBuf::Close(TAny* aPtr)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1119
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1120
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShBuf::Close(0x%08x)", aPtr));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1121
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1122
	if (aPtr)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1123
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1124
		DProcess* pP = reinterpret_cast<DProcess*>(aPtr);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1125
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1126
		// there no per buffer resources for kernel clients for non-aligned buffers
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1127
		if (pP != K::TheKernelProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1128
		    iPool->CloseClient(pP);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1129
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1130
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1131
	return DShBuf::Close(aPtr);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1132
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1133
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1134
TInt DMemModelNonAlignedShBuf::AddToProcess(DProcess* aProcess, TUint /* aAttr */)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1135
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1136
	__KTRACE_OPT(KMMU, Kern::Printf("Adding DMemModelShBuf %O to process %O", this, aProcess));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1137
	TUint flags;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1138
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1139
	return iPool->OpenClient(aProcess, flags);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1140
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1141
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1142
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1143
TUint8* DMemModelNonAlignedShBuf::Base(DProcess* aProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1144
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1145
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShBuf::Base(0x%x)", aProcess));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1146
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1147
	TUint8* base = reinterpret_cast<DMemModelNonAlignedShPool*>(iPool)->Base(aProcess) + (TUint)iRelAddress;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1148
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1149
	return base;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1150
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1151
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1152
TUint8* DMemModelNonAlignedShBuf::Base()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1153
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1154
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShBuf::Base()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1155
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1156
	TUint8* base = reinterpret_cast<DMemModelNonAlignedShPool*>(iPool)->Base();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1157
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1158
	return base ? base + iRelAddress : NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1159
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1160
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1161
TInt DMemModelNonAlignedShBuf::Map(TUint /* aMapAttr */, DProcess* /* aProcess */, TLinAddr& /* aBase */)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1162
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1163
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShBuf::Map()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1164
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1165
	return KErrNotSupported;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1166
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1167
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1168
TInt DMemModelNonAlignedShBuf::UnMap(DProcess* /* aProcess */)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1169
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1170
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShBuf::UnMap()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1171
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1172
	return KErrNotSupported;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1173
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1174
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1175
TInt DMemModelNonAlignedShBuf::Pin(TPhysicalPinObject* aPinObject, TBool aReadOnly, TPhysAddr& aAddress, TPhysAddr* aPages, TUint32& aMapAttr, TUint& aColour)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1176
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1177
	CHECK_PRECONDITIONS(MASK_THREAD_CRITICAL,"DMemModelNonAlignedShBuf::Pin");
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1178
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1179
	DMemModelNonAlignedShPool* pool = reinterpret_cast<DMemModelNonAlignedShPool*>(iPool);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1180
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1181
	NKern::ThreadEnterCS();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1182
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1183
	TInt startPage = iRelAddress >> KPageShift;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1184
	TInt lastPage = MM::RoundToPageCount(iRelAddress + Size());
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1185
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1186
	TInt pages = lastPage - startPage;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1187
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1188
	if (!pages) pages++;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1189
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1190
	TInt r = MM::PinPhysicalMemory(pool->iMemoryObject, (DPhysicalPinMapping*)aPinObject,
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1191
									startPage, pages, aReadOnly, aAddress, aPages, aMapAttr, aColour);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1192
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1193
	// adjust physical address to start of the buffer
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1194
	if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1195
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1196
		aAddress += (iRelAddress - (startPage << KPageShift));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1197
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1198
	NKern::ThreadLeaveCS();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1199
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1200
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1201
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1202
DMemModelNonAlignedShPool::DMemModelNonAlignedShPool() : DMemModelShPool()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1203
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1204
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::DMemModelNonAlignedShPool"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1205
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1206
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1207
DMemModelNonAlignedShPool::~DMemModelNonAlignedShPool()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1208
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1209
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::~DMemModelNonAlignedShPool"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1210
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1211
	MM::MemoryDestroy(iMemoryObject);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1212
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1213
	delete iPagesMap;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1214
	delete iBufMap;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1215
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1216
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1217
TInt DMemModelNonAlignedShPool::DoCreate(TShPoolCreateInfo& aInfo)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1218
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1219
	__KTRACE_OPT(KMMU, Kern::Printf("DMemModelNonAlignedShPool::DoCreate(%d, %d, %d)", aInfo.iInfo.iMaxBufs, iBufGap, iBufSize));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1220
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1221
	TInt r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1222
	TUint64 maxSize64 = static_cast<TUint64>(aInfo.iInfo.iMaxBufs) * static_cast<TUint64>(iBufGap);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1223
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1224
	if (maxSize64 > static_cast<TUint64>(KMaxTInt) || maxSize64 <= static_cast<TUint64>(0))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1225
		return KErrArgument;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1226
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1227
	TInt maxPages = MM::RoundToPageCount(static_cast<TInt>(maxSize64));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1228
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1229
	iBufMap = TBitMapAllocator::New(aInfo.iInfo.iMaxBufs, (TBool)ETrue);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1230
	if (iBufMap == NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1231
		return KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1232
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1233
	iPagesMap = TBitMapAllocator::New(maxPages, (TBool)ETrue);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1234
	if (iPagesMap == NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1235
		return KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1236
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1237
	// Memory attributes
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1238
	TMemoryAttributes attr = EMemoryAttributeStandard;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1239
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1240
	// Memory type
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1241
	TMemoryObjectType memoryType = (iPoolFlags & EShPoolPhysicalMemoryPool) ? EMemoryObjectHardware : EMemoryObjectUnpaged;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1242
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1243
	// Memory flags
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1244
	TMemoryCreateFlags memoryFlags = EMemoryCreateDefault;	// Don't leave previous contents of memory
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1245
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1246
	// Now create the memory object
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1247
	r = MM::MemoryNew(iMemoryObject, memoryType, maxPages, memoryFlags, attr);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1248
	if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1249
		return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1250
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1251
	// Make sure we give the caller the number of buffers they were expecting
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1252
	iCommittedPages = MM::RoundToPageCount(iInitialBuffers * iBufGap);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1253
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1254
	if (iPoolFlags & EShPoolPhysicalMemoryPool)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1255
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1256
		__KTRACE_OPT(KMMU, Kern::Printf("DMemModelNonAlignedShPool::DoCreate(iCommittedPages = 0x%08x, aInfo.iPhysAddr.iPhysAddrList = 0x%08x )", iCommittedPages, aInfo.iPhysAddr.iPhysAddrList));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1257
		if (iPoolFlags & EShPoolContiguous)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1258
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1259
			r = MM::MemoryAddContiguous(iMemoryObject, 0, iCommittedPages, aInfo.iPhysAddr.iPhysAddr);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1260
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1261
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1262
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1263
			r = MM::MemoryAddPages(iMemoryObject, 0, iCommittedPages, aInfo.iPhysAddr.iPhysAddrList);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1264
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1265
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1266
		iMaxPages = iCommittedPages;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1267
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1268
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1269
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1270
		__KTRACE_OPT(KMMU, Kern::Printf("DMemModelNonAlignedShPool::DoCreate(iCommittedPages = %d, contig = %d)", iCommittedPages, iPoolFlags & EShPoolContiguous));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1271
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1272
		if (iPoolFlags & EShPoolContiguous)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1273
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1274
			TPhysAddr paddr;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1275
			r = MM::MemoryAllocContiguous(iMemoryObject, 0, iCommittedPages, 0, paddr);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1276
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1277
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1278
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1279
			r = MM::MemoryAlloc(iMemoryObject, 0, iCommittedPages);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1280
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1281
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1282
		iMaxPages = maxPages;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1283
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1284
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1285
	iPagesMap->Alloc(0, iCommittedPages);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1286
	
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1287
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1288
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1289
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1290
TUint8* DMemModelNonAlignedShPool::Base(DProcess* aProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1291
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1292
	TUint8 *base = 0;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1293
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1294
	LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1295
	DMemModelNonAlignedShPoolClient* client = reinterpret_cast<DMemModelNonAlignedShPoolClient*>(iClientMap->Find(reinterpret_cast<TUint>(aProcess)));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1296
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1297
	__NK_ASSERT_DEBUG(client); // ASSERT because pool must be already opened in the clients address space
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1298
	__NK_ASSERT_DEBUG(client->iMapping); // ASSERT because non-aligned buffers are mapped by default in user space
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1299
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1300
	base = reinterpret_cast<TUint8*>(MM::MappingBase(client->iMapping));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1301
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1302
	UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1303
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1304
	return base;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1305
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1306
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1307
TInt DMemModelNonAlignedShPool::CreateInitialBuffers()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1308
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1309
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::CreateInitialBuffers"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1310
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1311
	iInitialBuffersArray = reinterpret_cast<DMemModelNonAlignedShBuf*>(Kern::Alloc(iInitialBuffers * sizeof(DMemModelNonAlignedShBuf)));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1312
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1313
	if (iInitialBuffersArray == NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1314
		return KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1315
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1316
	TLinAddr offset = 0;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1317
	for (TUint i = 0; i < iInitialBuffers; i++)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1318
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1319
		DMemModelNonAlignedShBuf *buf = new (&iInitialBuffersArray[i]) DMemModelNonAlignedShBuf(this, offset);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1320
		TInt r = buf->Construct();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1321
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1322
		if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1323
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1324
			iFreeList.Add(&buf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1325
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1326
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1327
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1328
			iInitialBuffers = i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1329
			return KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1330
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1331
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1332
		offset += iBufGap;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1333
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1334
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1335
	iFreeBuffers  = iInitialBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1336
	iTotalBuffers = iInitialBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1337
	iBufMap->Alloc(0, iInitialBuffers);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1338
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1339
	return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1340
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1341
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1342
TInt DMemModelNonAlignedShPool::AddToProcess(DProcess* aProcess, TUint aAttr)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1343
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1344
	// Must be in critical section so we don't leak os asid references.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1345
	__ASSERT_CRITICAL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1346
	__KTRACE_OPT(KMMU, Kern::Printf("Adding DMemModelShPool %O to process %O", this, aProcess));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1347
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1348
	DMemoryMapping* mapping = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1349
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1350
	TBool write = (TBool)EFalse;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1351
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1352
	// User = ETrue, ReadOnlyWrite = ETrue, Execute = EFalse
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1353
	if (aAttr & EShPoolWriteable)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1354
		write = (TBool)ETrue;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1355
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1356
	TMappingPermissions perm = MM::MappingPermissions(ETrue,	// user
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1357
													  write,	// writeable
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1358
													  EFalse);	// execute
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1359
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1360
	TMappingCreateFlags mappingFlags = EMappingCreateDefault;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1361
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1362
	DMemModelProcess* pP = reinterpret_cast<DMemModelProcess*>(aProcess);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1363
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1364
	Kern::MutexWait(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1365
	TInt r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1366
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1367
	LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1368
	DMemModelNonAlignedShPoolClient* client = reinterpret_cast<DMemModelNonAlignedShPoolClient*>(iClientMap->Find(reinterpret_cast<TUint>(aProcess)));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1369
	UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1370
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1371
	if (!client)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1372
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1373
		client = new DMemModelNonAlignedShPoolClient;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1374
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1375
		if (client)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1376
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1377
			// map non aligned pools in userside processes by default
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1378
			if (aAttr & EShPoolAutoMapBuf || pP != K::TheKernelProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1379
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1380
				// Open a reference on the os asid so it doesn't get freed and reused.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1381
				TInt osAsid = pP->TryOpenOsAsid();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1382
				if (osAsid < 0)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1383
					{// The process freed its os asid so can't create a new mapping.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1384
					r = KErrDied;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1385
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1386
				else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1387
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1388
					r = MM::MappingNew(mapping, iMemoryObject, perm, osAsid, mappingFlags);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1389
					// Close the reference as the mapping will be destroyed if the process dies.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1390
					pP->CloseOsAsid();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1391
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1392
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1393
				if ((r == KErrNone) && (pP == K::TheKernelProcess))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1394
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1395
					iBaseAddress = MM::MappingBase(mapping);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1396
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1397
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1398
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1399
			if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1400
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1401
				client->iMapping = mapping;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1402
				client->iFlags = aAttr;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1403
				r = iClientMap->Add(reinterpret_cast<TUint>(aProcess), client);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1404
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1405
				if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1406
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1407
					if (pP != K::TheKernelProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1408
						{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1409
						r = aProcess->iHandles.Reserve(iTotalBuffers);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1410
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1411
						if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1412
							{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1413
							iClientMap->Remove(reinterpret_cast<TUint>(aProcess));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1414
							}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1415
						}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1416
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1417
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1418
				if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1419
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1420
					delete client;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1421
					MM::MappingDestroy(mapping);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1422
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1423
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1424
			else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1425
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1426
				delete client;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1427
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1428
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1429
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1430
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1431
			r = KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1432
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1433
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1434
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1435
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1436
		LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1437
		client->iAccessCount++;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1438
		UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1439
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1440
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1441
	Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1442
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1443
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1444
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1445
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1446
TInt DMemModelNonAlignedShPool::DeleteInitialBuffers()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1447
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1448
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::DeleteInitialBuffers"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1449
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1450
	if (iInitialBuffersArray != NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1451
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1452
		for (TUint i = 0; i < iInitialBuffers; i++)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1453
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1454
			iInitialBuffersArray[i].iObjLink.Deque(); // remove from free list
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1455
			iInitialBuffersArray[i].Dec();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1456
			iInitialBuffersArray[i].~DMemModelNonAlignedShBuf();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1457
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1458
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1459
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1460
	Kern::Free(iInitialBuffersArray);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1461
	iInitialBuffersArray = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1462
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1463
	return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1464
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1465
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1466
TInt DMemModelNonAlignedShPool::DestroyAllMappingsAndReservedHandles(DProcess* aProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1467
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1468
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::DestroyAllMappingsAndReservedHandles(0x%08x)", aProcess));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1469
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1470
	TInt r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1471
	Kern::MutexWait(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1472
	DMemModelNonAlignedShPoolClient* client = reinterpret_cast<DMemModelNonAlignedShPoolClient*>(iClientMap->Remove(reinterpret_cast<TUint>(aProcess)));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1473
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1474
	__NK_ASSERT_DEBUG(client);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1475
	__NK_ASSERT_DEBUG(client->iAccessCount == 0);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1476
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1477
	if (client->iMapping)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1478
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1479
		MM::MappingDestroy(client->iMapping);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1480
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1481
	delete client;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1482
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1483
	if (aProcess != K::TheKernelProcess)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1484
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1485
		// Remove reserved handles
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1486
		r = aProcess->iHandles.Reserve(-(iTotalBuffers));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1487
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1488
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1489
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1490
		iBaseAddress = 0;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1491
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1492
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1493
	Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1494
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1495
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelNonAlignedShPool::DestroyAllMappingsAndReservedHandles(0x%08x)", aProcess));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1496
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1497
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1498
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1499
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1500
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1501
TInt DMemModelNonAlignedShPool::Close(TAny* aPtr)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1502
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1503
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::Close(0x%08x)", aPtr));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1504
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1505
	if (aPtr)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1506
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1507
		DProcess* pP = reinterpret_cast<DProcess*>(aPtr);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1508
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1509
		CloseClient(pP);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1510
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1511
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1512
	return DShPool::Close(aPtr);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1513
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1514
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1515
void DMemModelNonAlignedShPool::FreeBufferPages(TUint aOffset)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1516
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1517
	TLinAddr firstByte = aOffset;	// offset of first byte in buffer
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1518
	TLinAddr lastByte = firstByte+iBufGap-1;	// offset of last byte in buffer
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1519
	TUint firstPage = firstByte>>KPageShift;	// index of first page containing part of the buffer
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1520
	TUint lastPage = lastByte>>KPageShift;		// index of last page containing part of the buffer
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1521
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1522
	TUint firstBuffer = (firstByte&~KPageMask)/iBufGap; // index of first buffer which lies in firstPage
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1523
	TUint lastBuffer = (lastByte|KPageMask)/iBufGap;    // index of last buffer which lies in lastPage
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1524
	TUint thisBuffer = firstByte/iBufGap;				// index of the buffer to be freed
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1525
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1526
	// Ensure lastBuffer is within bounds (there may be room in the last
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1527
	// page for more buffers than we have allocated).
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1528
	if (lastBuffer >= iMaxBuffers)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1529
		lastBuffer = iMaxBuffers-1;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1530
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1531
	if(firstBuffer!=thisBuffer && iBufMap->NotFree(firstBuffer,thisBuffer-firstBuffer))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1532
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1533
		// first page has other allocated buffers in it,
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1534
		// so we can't free it and must move on to next one...
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1535
		if (firstPage >= lastPage)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1536
			return;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1537
		++firstPage;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1538
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1539
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1540
	if(lastBuffer!=thisBuffer && iBufMap->NotFree(thisBuffer+1,lastBuffer-thisBuffer))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1541
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1542
		// last page has other allocated buffers in it,
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1543
		// so we can't free it and must step back to previous one...
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1544
		if (lastPage <= firstPage)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1545
			return;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1546
		--lastPage;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1547
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1548
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1549
	if(firstPage<=lastPage)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1550
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1551
		// we can free pages firstPage trough to lastPage...
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1552
		TUint numPages = lastPage-firstPage+1;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1553
		iPagesMap->SelectiveFree(firstPage,numPages);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1554
		MM::MemoryLock(iMemoryObject);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1555
		MM::MemoryFree(iMemoryObject, firstPage, numPages);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1556
		MM::MemoryUnlock(iMemoryObject);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1557
		iCommittedPages -= numPages;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1558
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1559
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1560
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1561
TInt DMemModelNonAlignedShPool::GrowPool()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1562
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1563
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::GrowPool()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1564
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1565
	// Don't do anything with physical memory pools
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1566
	if (iPoolFlags & EShPoolPhysicalMemoryPool)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1567
		return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1568
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1569
	Kern::MutexWait(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1570
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1571
	TUint32 headroom = iMaxBuffers - iTotalBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1572
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1573
	// How many buffers to grow by?
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1574
	TUint32 grow = mult_fx248(iTotalBuffers, iGrowByRatio);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1575
	if (grow == 0)			// Handle round-to-zero
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1576
		grow = 1;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1577
	if (grow > headroom)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1578
		grow = headroom;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1579
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1580
	TInt r = KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1581
	SDblQue temp;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1582
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1583
	TUint i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1584
	for (i = 0; i < grow; ++i)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1585
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1586
		TInt offset = iBufMap->Alloc();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1587
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1588
		if (offset < 0)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1589
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1590
			r = KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1591
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1592
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1593
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1594
		offset *= iBufGap;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1595
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1596
		TInt lastPage = (offset + iBufSize - 1) >> KPageShift;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1597
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1598
		// Allocate one page at a time.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1599
		for (TInt page = offset >> KPageShift; page <= lastPage; ++page)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1600
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1601
			// Is the page allocated?
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1602
			if (iPagesMap->NotAllocated(page, 1))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1603
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1604
				MM::MemoryLock(iMemoryObject);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1605
				r = MM::MemoryAlloc(iMemoryObject, page, 1);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1606
				MM::MemoryUnlock(iMemoryObject);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1607
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1608
				if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1609
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1610
					break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1611
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1612
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1613
				++iCommittedPages;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1614
				iPagesMap->Alloc(page, 1);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1615
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1616
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1617
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1618
		if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1619
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1620
			iBufMap->Free(offset / iBufGap);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1621
			FreeBufferPages(offset);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1622
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1623
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1624
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1625
		DMemModelNonAlignedShBuf *buf = new DMemModelNonAlignedShBuf(this, offset);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1626
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1627
		if (buf == NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1628
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1629
			iBufMap->Free(offset / iBufGap);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1630
			FreeBufferPages(offset);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1631
			r = KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1632
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1633
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1634
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1635
		r = buf->Construct();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1636
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1637
		if (r != KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1638
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1639
			iBufMap->Free(offset / iBufGap);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1640
			FreeBufferPages(offset);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1641
			buf->DObject::Close(NULL);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1642
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1643
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1644
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1645
		temp.Add(&buf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1646
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1647
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1648
	r = UpdateReservedHandles(i);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1649
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1650
	if (r == KErrNone)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1651
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1652
		LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1653
		iFreeList.MoveFrom(&temp);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1654
		iFreeBuffers += i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1655
		iTotalBuffers += i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1656
		UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1657
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1658
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1659
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1660
		// couldn't reserve handles so have no choice but to
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1661
		// delete the buffers
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1662
		__KTRACE_OPT(KMMU, Kern::Printf("GrowPool failed with %d, deleting buffers", r));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1663
		SDblQueLink *pLink;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1664
		while ((pLink = temp.GetFirst()) != NULL)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1665
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1666
			DShBuf* buf = _LOFF(pLink, DShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1667
			TLinAddr offset = buf->iRelAddress;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1668
			iBufMap->Free(offset / iBufGap);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1669
			FreeBufferPages(offset);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1670
			buf->DObject::Close(NULL);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1671
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1672
		__KTRACE_OPT(KMMU, Kern::Printf("Buffers deleted"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1673
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1674
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1675
	CalculateGrowShrinkTriggers();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1676
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1677
	Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1678
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1679
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelNonAlignedShPool::GrowPool()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1680
	return r;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1681
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1682
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1683
TInt DMemModelNonAlignedShPool::ShrinkPool()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1684
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1685
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::ShrinkPool()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1686
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1687
	// Don't do anything with physical memory pools
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1688
	if (iPoolFlags & EShPoolPhysicalMemoryPool)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1689
		return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1690
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1691
	Kern::MutexWait(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1692
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1693
	TUint32 grownBy = iTotalBuffers - iInitialBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1694
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1695
	// How many buffers to shrink by?
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1696
	TUint32 shrink = mult_fx248(iTotalBuffers, iShrinkByRatio);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1697
	if (shrink == 0)		// Handle round-to-zero
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1698
		shrink = 1;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1699
	if (shrink > grownBy)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1700
		shrink = grownBy;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1701
	if (shrink > iFreeBuffers)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1702
		shrink = iFreeBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1703
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1704
	TUint i;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1705
	for (i = 0; i < shrink; ++i)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1706
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1707
		LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1708
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1709
		if (iFreeList.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1710
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1711
			UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1712
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1713
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1714
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1715
		// work from the back of the queue
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1716
		SDblQueLink *pLink = iFreeList.Last();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1717
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1718
		DShBuf* pBuf = _LOFF(pLink, DShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1719
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1720
		if (pBuf >= iInitialBuffersArray && pBuf < (iInitialBuffersArray + iInitialBuffers))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1721
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1722
			UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1723
			break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1724
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1725
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1726
		--iFreeBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1727
		--iTotalBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1728
		pLink->Deque();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1729
		UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1730
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1731
		TLinAddr offset = pBuf->iRelAddress;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1732
		iBufMap->Free(offset / iBufGap);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1733
		FreeBufferPages(offset);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1734
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1735
		pBuf->DObject::Close(NULL);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1736
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1737
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1738
	UpdateReservedHandles(-(TInt)i);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1739
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1740
	// If we couldn't shrink the pool by this many buffers, wait until we Free() another
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1741
	// buffer before trying to shrink again.
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1742
	if (i < shrink)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1743
		iPoolFlags |= EShPoolSuppressShrink;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1744
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1745
	CalculateGrowShrinkTriggers();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1746
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1747
	Kern::MutexSignal(*iProcessLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1748
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1749
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelNonAlignedShPool::ShrinkPool()"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1750
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1751
	return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1752
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1753
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1754
TInt DMemModelNonAlignedShPool::UpdateFreeList()
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1755
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1756
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::UpdateFreeList"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1757
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1758
	SDblQue temp;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1759
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1760
	LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1761
	while(!iAltFreeList.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1762
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1763
		// sort a temporary list of 'n' object with the lowest index first
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1764
		for (TInt n = 0; n < 8 && !iAltFreeList.IsEmpty(); ++n)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1765
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1766
			// bit of an assumption, lets assume that the lower indexes will be allocated and freed first
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1767
			// and therefore will be nearer the front of the list
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1768
			DShBuf* buf = _LOFF(iAltFreeList.GetFirst(), DShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1769
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1770
			SDblQueLink* anchor = reinterpret_cast<SDblQueLink*>(&temp);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1771
			SDblQueLink* pLink = temp.Last();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1772
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1773
			while (ETrue)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1774
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1775
				// traverse the list starting at the back
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1776
				if ((pLink != anchor) && (_LOFF(pLink, DShBuf, iObjLink)->iRelAddress > buf->iRelAddress))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1777
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1778
					pLink = pLink->iPrev;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1779
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1780
				else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1781
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1782
					buf->iObjLink.InsertAfter(pLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1783
					break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1784
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1785
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1786
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1787
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1788
		// now merge with the free list
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1789
		while(!temp.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1790
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1791
			if (iFreeList.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1792
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1793
				iFreeList.MoveFrom(&temp);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1794
				break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1795
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1796
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1797
			// working backwards with the highest index
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1798
			DShBuf* buf = _LOFF(temp.Last(), DShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1799
			SDblQueLink* anchor = reinterpret_cast<SDblQueLink*>(&iFreeList);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1800
			SDblQueLink* pLink = iFreeList.Last();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1801
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1802
			while (!NKern::FMFlash(&iLock))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1803
				{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1804
				if ((pLink != anchor) && (_LOFF(pLink, DShBuf, iObjLink)->iRelAddress > buf->iRelAddress))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1805
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1806
					pLink = pLink->iPrev;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1807
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1808
				else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1809
					{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1810
					buf->iObjLink.Deque();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1811
					buf->iObjLink.InsertAfter(pLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1812
					// next buffer
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1813
					if (temp.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1814
						break;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1815
					buf = _LOFF(temp.Last(), DShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1816
					}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1817
				}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1818
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1819
		NKern::FMFlash(&iLock);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1820
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1821
	UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1822
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1823
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelNonAlignedShPool::UpdateFreeList"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1824
	return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1825
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1826
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1827
void DMemModelNonAlignedShPool::Free(DShBuf* aBuf)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1828
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1829
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::Free (aBuf = 0x%08x, aBuf->Base() 0x%08x)", aBuf, aBuf->iRelAddress));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1830
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1831
	LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1832
#ifdef _DEBUG
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1833
	// Remove from allocated list
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1834
	aBuf->iObjLink.Deque();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1835
#endif
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1836
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1837
	// we want to put the initial buffers at the head of the free list
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1838
	// and the grown buffers at the tail as this makes shrinking more efficient
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1839
	if (aBuf >= iInitialBuffersArray && aBuf < (iInitialBuffersArray + iInitialBuffers))
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1840
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1841
		iFreeList.AddHead(&aBuf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1842
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1843
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1844
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1845
		iAltFreeList.Add(&aBuf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1846
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1847
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1848
	++iFreeBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1849
#ifdef _DEBUG
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1850
	--iAllocatedBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1851
#endif
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1852
	iPoolFlags &= ~EShPoolSuppressShrink;		// Allow shrinking again, if it was blocked
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1853
	UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1854
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1855
	// queue ManagementDfc which completes notifications as appropriate
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1856
	if (HaveWorkToDo())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1857
		KickManagementDfc();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1858
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1859
	DShPool::Close(NULL); // decrement pool reference count
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1860
	}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1861
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1862
// Kernel side API
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1863
TInt DMemModelNonAlignedShPool::Alloc(DShBuf*& aShBuf)
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1864
	{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1865
	__KTRACE_OPT(KMMU, Kern::Printf(">DMemModelNonAlignedShPool::Alloc (DShBuf)"));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1866
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1867
	aShBuf = NULL;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1868
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1869
	LockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1870
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1871
	if (!iFreeList.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1872
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1873
		aShBuf = _LOFF(iFreeList.GetFirst(), DShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1874
#ifdef _DEBUG
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1875
		iAllocated.Add(&aShBuf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1876
		iAllocatedBuffers++;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1877
#endif
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1878
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1879
	else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1880
		{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1881
		// try alternative free list
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1882
		if (!iAltFreeList.IsEmpty())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1883
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1884
			aShBuf = _LOFF(iAltFreeList.GetFirst(), DShBuf, iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1885
#ifdef _DEBUG
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1886
			iAllocated.Add(&aShBuf->iObjLink);
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1887
			iAllocatedBuffers++;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1888
#endif
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1889
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1890
		else
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1891
			{
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1892
			UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1893
			KickManagementDfc(); // Try to grow
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1894
			return KErrNoMemory;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1895
			}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1896
		}
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1897
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1898
	--iFreeBuffers;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1899
	Open(); // increment pool reference count
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1900
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1901
	UnlockPool();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1902
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1903
	if (HaveWorkToDo())
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1904
		KickManagementDfc();
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1905
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1906
	__KTRACE_OPT(KMMU, Kern::Printf("<DMemModelNonAlignedShPool::Alloc return buf = 0x%08x", aShBuf));
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1907
	return KErrNone;
a41df078684a Convert Kernelhwsrv package from SFL to EPL
John Imhofe
parents:
diff changeset
  1908
	}