| author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
| Thu, 19 Aug 2010 10:05:08 +0300 | |
| branch | RCL_3 |
| changeset 18 | 0818dd463d41 |
| parent 2 | 7645e9ce10dc |
| child 19 | 924385140d98 |
| permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006-2010 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 "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: Main classes for Out of Memory Monitor. |
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* |
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*/ |
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#include "oomoutofmemorywatcher.h" |
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#include "oommemorymonitor.h" |
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#include "OomTraces.h" |
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// ====================================================================== |
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// class COutOfMemoryWatcher |
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// - notifies when free memory crosses preset thresholds |
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// ====================================================================== |
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// --------------------------------------------------------- |
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// |
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// --------------------------------------------------------- |
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// |
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COutOfMemoryWatcher* COutOfMemoryWatcher::NewL(CMemoryMonitor& aMonitor, TInt aLowRamThreshold, TInt aGoodRamThreshold, TBool aSwapUsageMonitored, TInt aLowSwapThreshold, TInt aGoodSwapThreshold) |
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{
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FUNC_LOG; |
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COutOfMemoryWatcher* self = new (ELeave) COutOfMemoryWatcher(aMonitor, aSwapUsageMonitored); |
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CleanupStack::PushL(self); |
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self->ConstructL(aLowRamThreshold, aGoodRamThreshold, aLowSwapThreshold, aGoodSwapThreshold); |
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CleanupStack::Pop(self); |
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return self; |
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} |
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// --------------------------------------------------------- |
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// |
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// --------------------------------------------------------- |
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// |
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COutOfMemoryWatcher::~COutOfMemoryWatcher() |
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{
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FUNC_LOG; |
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Cancel(); |
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} |
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// --------------------------------------------------------- |
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// |
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// --------------------------------------------------------- |
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// |
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COutOfMemoryWatcher::COutOfMemoryWatcher(CMemoryMonitor& aMonitor, TBool aSwapUsageMonitored) |
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: CActive(CActive::EPriorityStandard), |
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iMemoryMonitor(aMonitor), |
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iSwapUsageMonitored(aSwapUsageMonitored) |
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{
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FUNC_LOG; |
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CActiveScheduler::Add(this); |
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} |
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// --------------------------------------------------------- |
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// |
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// --------------------------------------------------------- |
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// |
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void COutOfMemoryWatcher::ConstructL(TInt aLowRamThreshold, TInt aGoodRamThreshold, TInt aLowSwapThreshold, TInt aGoodSwapThreshold) |
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{
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FUNC_LOG; |
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UserSvr::SetMemoryThresholds(aLowRamThreshold,aGoodRamThreshold); |
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if (iSwapUsageMonitored) |
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{
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SVMSwapThresholds thresholds; |
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thresholds.iLowThreshold = aLowSwapThreshold; |
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thresholds.iGoodThreshold = aGoodSwapThreshold; |
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UserSvr::HalFunction(EHalGroupVM, EVMHalSetSwapThresholds, &thresholds, 0); |
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} |
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User::LeaveIfError(iChangeNotifier.Create()); |
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} |
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void COutOfMemoryWatcher::UpdateThresholds(TInt aLowRamThreshold, TInt aGoodRamThreshold, TInt aLowSwapThreshold, TInt aGoodSwapThreshold) |
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{
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FUNC_LOG; |
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UserSvr::SetMemoryThresholds(aLowRamThreshold,aGoodRamThreshold); |
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if (iSwapUsageMonitored) |
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{
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SVMSwapThresholds thresholds; |
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thresholds.iLowThreshold = aLowSwapThreshold; |
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thresholds.iGoodThreshold = aGoodSwapThreshold; |
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UserSvr::HalFunction(EHalGroupVM, EVMHalSetSwapThresholds, &thresholds, 0); |
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} |
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} |
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// --------------------------------------------------------- |
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// |
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// --------------------------------------------------------- |
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// |
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void COutOfMemoryWatcher::Start() |
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{
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FUNC_LOG; |
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if (!IsActive()) |
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{
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iChangeNotifier.Logon(iStatus); |
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SetActive(); |
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} |
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} |
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// --------------------------------------------------------- |
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// |
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// --------------------------------------------------------- |
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// |
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void COutOfMemoryWatcher::DoCancel() |
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{
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FUNC_LOG; |
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iChangeNotifier.LogonCancel(); |
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} |
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// --------------------------------------------------------- |
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// |
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// --------------------------------------------------------- |
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// |
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void COutOfMemoryWatcher::RunL() |
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{
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FUNC_LOG; |
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TInt status = iStatus.Int(); |
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if (status < 0) |
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{
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User::Leave(status); |
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} |
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// Check for memory status change. |
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if (status & EChangesFreeMemory) |
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{
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iMemoryMonitor.FreeMemThresholdCrossedL(); |
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} |
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// We are not active until FreeMemThresholdCrossedL returns. |
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Start(); |
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} |