author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 31 Mar 2010 21:06:44 +0300 | |
branch | RCL_3 |
changeset 16 | d486e5e3cc9a |
parent 0 | 1ddebce53859 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007-2009 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 "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: Class that monitors free memory and attempts to free it if necessary |
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* |
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*/ |
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#ifndef CAMMEMORYMONITOR_H |
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#define CAMMEMORYMONITOR_H |
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#include <e32base.h> |
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#include <oommonitorsession.h> |
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class CCamAppController; |
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class CCamAppUi; |
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/** |
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* Class that monitors free memory and attempts to free it if necessary |
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* |
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*/ |
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class CCamMemoryMonitor : public CActive |
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{ |
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public: |
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static CCamMemoryMonitor* NewL( CCamAppUi* aAppUi, CCamAppController* aController ); |
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virtual ~CCamMemoryMonitor(); |
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/** |
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* Start monitoring free memory. If available memory drop below given limit, |
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* requests memory from OomManager. |
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* |
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* @param aLimit Monitored memory limit |
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* @param aRequestAmount Amount of memory to be requested if below aLimit |
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*/ |
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void StartMonitoring( TInt aLimit, TInt aRequestAmount ); |
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/** |
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* Start monitoring free memory. Uses default or previously given |
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* values for limit and request amount |
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*/ |
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void StartMonitoring(); |
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/** |
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* Stop monitoring free memory. |
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* |
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*/ |
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void StopMonitoring(); |
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/** |
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* Checks for free memory and requests more if below given limit. |
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* |
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* @param aLimit Memory limit to be checked |
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* @param aRequestAmount Amount of memory to be requested if below aLimit |
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* @param aShowNote If ETrue, note will be shown during memory request |
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*/ |
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TInt CheckAndRequestMemoryL( TInt aLimit, TInt aRequestAmount, TBool aShowNote ); |
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/** |
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* Checks for free memory and requests more if below given limit. Uses |
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* default values for limit and request amount. |
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* |
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* @param aShowNote If ETrue, note will be shown during memory request |
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*/ |
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TInt CheckAndRequestMemoryL( TBool aShowNote ); |
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void RunL(); |
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void DoCancel(); |
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private: |
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CCamMemoryMonitor( CCamAppUi* aAppUi, CCamAppController* aController ); |
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void ConstructL(); |
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static TInt MemoryCheck( TAny* aPtr ); |
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void CheckMemory(); |
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private: |
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// data |
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TInt iLimit; |
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TInt iRequestAmount; |
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CCamAppUi* iAppUi; |
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CCamAppController* iController; |
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CPeriodic* iMemoryCheckTimer; |
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ROomMonitorSession iOomMonitor; |
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}; |
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#endif /* CCAMMEMORYMONITOR_H_ */ |