author | Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com> |
Mon, 30 Mar 2009 12:54:55 +0300 | |
changeset 0 | dd21522fd290 |
child 8 | 7c90e6132015 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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* |
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*/ |
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|
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// INCLUDES |
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#include <e32base.h> |
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#include <e32std.h> |
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#include <e32hal.h> |
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#include "MemoryPool.h" |
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#include "StopScheduler.h" |
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#include "fast_malloc.h" |
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#include <OOMMonitorSession.h> |
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|
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// CONSTANTS |
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// CLASS DECLARATIONS |
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//----------------------------------------------------------------------------- |
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// CMemoryPool::AddCollector |
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//----------------------------------------------------------------------------- |
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void CMemoryPool::AddCollector( MMemoryCollector* aCollector ) |
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{ |
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// sort the collectors according to their priorities |
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TInt i; |
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for( i=0; i<iCollectors.Count(); ++i ) |
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{ |
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if( aCollector->Priority() <= iCollectors[i]->Priority() ) break; |
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} |
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iCollectors.Insert( aCollector, i ); |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CMemoryPool::RemoveCollector |
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//----------------------------------------------------------------------------- |
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void CMemoryPool::RemoveCollector( MMemoryCollector* aCollector ) |
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{ |
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TInt idx = iCollectors.Find( aCollector ); |
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if( idx != KErrNotFound ) |
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iCollectors.Remove( idx ); |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CMemoryPool::AddStopper |
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//----------------------------------------------------------------------------- |
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void CMemoryPool::AddStopper( MOOMStopper* aStopper ) |
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{ |
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if( !iStopScheduler ) |
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iStopScheduler = new CStopScheduler(*this); |
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iStoppers.Append( aStopper ); |
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} |
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//----------------------------------------------------------------------------- |
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// CMemoryPool::RemoveStopper |
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//----------------------------------------------------------------------------- |
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void CMemoryPool::RemoveStopper( MOOMStopper* aStopper ) |
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{ |
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if( !iStopScheduler ) return; |
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TInt idx = iStoppers.Find( aStopper ); |
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if( idx != KErrNotFound ) |
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iStoppers.Remove( idx ); |
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} |
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//----------------------------------------------------------------------------- |
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// CMemoryPool::SetNotifier |
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//----------------------------------------------------------------------------- |
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void CMemoryPool::SetNotifier( MOOMNotifier* aNotifier ) |
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{ |
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iNotifier = aNotifier; |
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} |
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//----------------------------------------------------------------------------- |
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// CMemoryPool::Create() |
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//----------------------------------------------------------------------------- |
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TBool CMemoryPool::Create() |
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{ |
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iNestedChecks = 0; |
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iCollectors.Reset(); |
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iIsStopping = EFalse; |
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iIsCollecting = EFalse; |
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iMemStatus = ENoOOM; |
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// stop scheduler |
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iStopScheduler = 0; |
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iNotifier = 0; |
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return ETrue; |
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} |
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//----------------------------------------------------------------------------- |
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// CMemoryPool::SetStopping |
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//----------------------------------------------------------------------------- |
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void CMemoryPool::SetStopping( TBool aStopping ) |
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{ |
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iIsStopping = aStopping; |
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// all operations are stopped, must have some memory available |
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if( !iIsStopping ) iMemStatus = ENoOOM; |
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|
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// notify the client when stopping is done |
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if( !aStopping && iNotifier ) |
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{ |
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iNotifier->Notify(); |
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} |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CMemoryPool::CollectMemory |
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//----------------------------------------------------------------------------- |
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void CMemoryPool::CollectMemory(TUint aSize) |
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{ |
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if( iIsCollecting ) return; |
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|
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iIsCollecting = ETrue; |
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for( TInt i=0; i<iCollectors.Count(); ++i ) |
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{ |
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iCollectors[i]->Collect(aSize); |
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} |
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|
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User::CompressAllHeaps(); |
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iIsCollecting = EFalse; |
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|
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if (iStopScheduler) |
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iStopScheduler->Start( CStopScheduler::ECheckMemory, aSize ); |
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} |
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143 |
|
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//----------------------------------------------------------------------------- |
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// CMemoryPool::RestoreCollectors |
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//----------------------------------------------------------------------------- |
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void CMemoryPool::RestoreCollectors( TOOMPriority aPriority ) |
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{ |
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if( iIsCollecting ) return; |
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|
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for( TInt i=0; i<iCollectors.Count(); ++i ) |
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{ |
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if( iCollectors[i]->Priority() >= aPriority ) |
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iCollectors[i]->Restore(); |
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} |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CMemoryPool::~CMemoryPool |
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//----------------------------------------------------------------------------- |
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CMemoryPool::~CMemoryPool() |
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{ |
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iCollectors.Reset(); |
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iStoppers.Reset(); |
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delete iStopScheduler; |
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|
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// NOTE: remove this when UI spec has OOM notifier defined |
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delete iNotifier; |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CMemoryPool::AllocFromPool |
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//----------------------------------------------------------------------------- |
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TAny* CMemoryPool::AllocFromPool( TUint aSize ) |
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{ |
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// reset the status for next allocation |
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iMemStatus &= ~ERescueOOM; |
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|
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TAny *p = DoAlloc( aSize ); |
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|
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// check memory manager status |
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if( !p || iMemStatus & ERescueOOM ) |
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{ |
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if( !iIsCollecting ) |
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{ |
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CollectMemory(); |
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} |
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|
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if( !p ) |
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p = DoAlloc( aSize ); |
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|
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NotifyAndStop(); |
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} |
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|
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return p; |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CMemoryPool::SetStatus |
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//----------------------------------------------------------------------------- |
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void CMemoryPool::SetStatus( TOOMCheckResult aType ) |
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{ |
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iMemStatus |= aType; |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CMemoryPool::NotifyAndStop() |
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//----------------------------------------------------------------------------- |
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void CMemoryPool::NotifyAndStop() |
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{ |
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if( !iIsStopping ) |
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{ |
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iIsStopping = ETrue; |
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if (iStopScheduler) |
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iStopScheduler->Start( CStopScheduler::EStopLoading, 0 ); |
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} |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CPlainAllocator::DoAlloc |
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//----------------------------------------------------------------------------- |
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TUint CFastMemoryPool::FreeMemory(TFreeMem& aFree ) |
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{ |
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return free_memory( aFree.iPool, aFree.iHeap, aFree.iHal ); |
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} |
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//----------------------------------------------------------------------------- |
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// CFastMemoryPool::DoAlloc |
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//----------------------------------------------------------------------------- |
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TAny* CFastMemoryPool::DoAlloc( TUint aSize ) |
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{ |
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return fast_malloc( aSize ); |
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} |
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//----------------------------------------------------------------------------- |
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// CFastMemoryPool::ReAllocate |
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//----------------------------------------------------------------------------- |
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TAny* CFastMemoryPool::ReAllocate( TAny* aPtr, TUint aSize ) |
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{ |
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// reset the status for next allocation |
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iMemStatus &= ~ERescueOOM; |
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TAny* p = fast_realloc( aPtr, aSize ); |
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// check memory manager status |
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if( !p || iMemStatus & ERescueOOM ) |
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{ |
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if( !iIsCollecting ) |
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{ |
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CollectMemory(); |
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} |
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if( !p ) |
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p = fast_realloc( aPtr, aSize ); |
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NotifyAndStop(); |
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} |
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return p; |
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} |
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//----------------------------------------------------------------------------- |
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// CFastMemoryPool::PreCheck |
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//----------------------------------------------------------------------------- |
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TBool CFastMemoryPool::PreCheck( TUint aTotalSize, TUint aMaxBufSize, const TDesC8& /*aCheckerName*/ ) |
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{ |
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// avoid small checkings |
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if( aTotalSize < 1024 ) return ETrue; |
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if( !fast_pre_check( aTotalSize, aMaxBufSize ) ) |
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{ |
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CollectMemory(aTotalSize); |
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ROomMonitorSession oomMs; |
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if ( oomMs.Connect() == KErrNone ) { |
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oomMs.RequestFreeMemory( aTotalSize ); |
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oomMs.Close(); |
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} |
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if( !fast_pre_check( aTotalSize, aMaxBufSize ) ) |
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{ |
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iMemStatus |= ECheckOOM; |
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NotifyAndStop(); |
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return EFalse; |
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} |
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} |
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return ETrue; |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CMemoryPool::PostCheck |
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//----------------------------------------------------------------------------- |
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TUint CFastMemoryPool::PostCheck() |
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{ |
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fast_post_check(); |
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return iMemStatus; |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CPlainAllocator::Free |
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//----------------------------------------------------------------------------- |
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void CFastMemoryPool::Free( TAny* aPtr ) |
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{ |
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return fast_free( aPtr ); |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CPlainAllocator::MemorySize |
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//----------------------------------------------------------------------------- |
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TUint CFastMemoryPool::MemorySize( TAny* aPtr ) |
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{ |
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return fast_malloc_size( aPtr ); |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CPlainAllocator::SetRescueBufferSize |
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//----------------------------------------------------------------------------- |
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void CFastMemoryPool::SetRescueBufferSize( TInt aSize ) |
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{ |
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fast_set_rescue_buffer_size( aSize ); |
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} |
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|
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void CFastMemoryPool::RestoreRescueBuffer() |
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{ |
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alloc_rescue_buffer(); |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CDefaultMemoryPool::~CDefaultMemoryPool |
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//----------------------------------------------------------------------------- |
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CDefaultMemoryPool::~CDefaultMemoryPool() |
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{ |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CDefaultMemoryPool::DoAlloc |
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//----------------------------------------------------------------------------- |
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TAny* CDefaultMemoryPool::DoAlloc(TUint aSize) |
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{ |
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return User::Alloc( aSize ); |
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} |
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//----------------------------------------------------------------------------- |
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// CDefaultMemoryPool::ReAllocate |
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//----------------------------------------------------------------------------- |
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TAny* CDefaultMemoryPool::ReAllocate( TAny* aPtr, TUint aSize ) |
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{ |
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return User::ReAlloc( aPtr, aSize ); |
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} |
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//----------------------------------------------------------------------------- |
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// CDefaultMemoryPool::FreeMemory |
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//----------------------------------------------------------------------------- |
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TUint CDefaultMemoryPool::FreeMemory(TFreeMem& /*aFree*/) |
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{ |
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// free memory in Hal |
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TMemoryInfoV1Buf info; |
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UserHal::MemoryInfo( info ); |
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return info().iFreeRamInBytes; |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CDefaultMemoryPool::Free |
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//----------------------------------------------------------------------------- |
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void CDefaultMemoryPool::Free(TAny* aPtr) |
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{ |
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User::Free( aPtr ); |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CDefaultMemoryPool::MemorySize |
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//----------------------------------------------------------------------------- |
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TUint CDefaultMemoryPool::MemorySize(TAny* aPtr) |
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{ |
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return User::AllocLen( aPtr ); |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CDefaultMemoryPool::SetRescueBufferSize |
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//----------------------------------------------------------------------------- |
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void CDefaultMemoryPool::SetRescueBufferSize( TInt aSize ) |
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{ |
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iRescueBufferSize = aSize; |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CDefaultMemoryPool::PreCheck |
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//----------------------------------------------------------------------------- |
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TBool CDefaultMemoryPool::PreCheck( TUint aTotalSize, TUint /*aMaxBufSize*/, const TDesC8& /*aCheckerName*/ ) |
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{ |
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// avoid small checkings |
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if( aTotalSize < 1024 ) return ETrue; |
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|
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// free memory in Hal |
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TMemoryInfoV1Buf info; |
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UserHal::MemoryInfo( info ); |
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TInt sizeNeeded = aTotalSize + iRescueBufferSize; |
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if( sizeNeeded > info().iFreeRamInBytes ) |
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{ |
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CollectMemory(sizeNeeded); |
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|
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// check memory again |
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UserHal::MemoryInfo( info ); |
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|
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if(sizeNeeded > info().iFreeRamInBytes ) |
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{ |
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NotifyAndStop(); |
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iMemStatus |= ECheckOOM; |
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return EFalse; |
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} |
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} |
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|
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return ETrue; |
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} |
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|
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//----------------------------------------------------------------------------- |
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// CDefaultMemoryPool::PostCheck |
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//----------------------------------------------------------------------------- |
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TUint CDefaultMemoryPool::PostCheck() |
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{ |
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return iMemStatus; |
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} |
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|
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void CDefaultMemoryPool::RestoreRescueBuffer() |
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{ |
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// do nothing here. |
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} |
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|
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// END OF FILE |