author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 19 Aug 2010 10:05:08 +0300 | |
branch | RCL_3 |
changeset 58 | 0818dd463d41 |
parent 4 | 0fdb7f6b0309 |
child 62 | 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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#ifndef OOMMEMORYMONITOR_H |
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#define OOMMEMORYMONITOR_H |
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#include <u32hal.h> |
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#include <e32property.h> |
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#include <f32file.h> |
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#include <w32std.h> |
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#include "oomglobalconfig.h" |
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#include "oomwindowgrouplist.h" |
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#include "oommonitorsession.h" |
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enum TActionTriggerType |
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{ |
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ERamRotation, |
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EClientServerRequestOptionalRam, |
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EClientServerRequestFreeMemory, |
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EPublishAndSubscribe |
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}; |
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// --------------------------------------------------------- |
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// CMemoryMonitor |
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// --------------------------------------------------------- |
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// |
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class COutOfMemoryWatcher; |
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class CSubscribeHelper; |
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class COomMonitorPlugin; |
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class CMemoryMonitorServer; |
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class CWservEventReceiver; |
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class COomActionList; |
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class COomLogger; |
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class COomConfig; |
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class COomClientRequestQueue; |
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|
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/** |
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* The main manager class for Oom Monitor. It has the following responsibility: |
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* |
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* - initiates building the static configuration at boot time and owns the object which holds this. |
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* - owns and drives the action list which runs actions |
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* - owns the internal representation of the window group list and an active object to monitor window group changes |
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* - owns the public API via the server and client request queue. |
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* - has an active object which monitors low RAM events |
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* |
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* @lib oommonitor.lib |
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* @since S60 v5.0 |
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*/ |
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NONSHARABLE_CLASS(CMemoryMonitor) : public CBase |
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{ |
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public: |
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static CMemoryMonitor* NewL(); |
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~CMemoryMonitor(); |
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public: // event handlers |
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void FreeMemThresholdCrossedL(); |
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void AppNotExiting(TInt aWgId); |
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void StartFreeSomeRamL(TInt aFreeRamTarget, TInt aFreeSwapSpaceTarget); |
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void StartFreeSomeRamL(TInt aFreeRamTarget, TInt aFreeSwapSpaceTarget, TInt aMaxPriority); |
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void FreeOptionalRamL(TInt aBytesRequested, TInt aPluginId, TBool aDataPaged); // The ID of the plugin that will clear up the allocation, used to determine the priority of the allocation |
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void HandleFocusedWgChangeL(); |
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static const COomGlobalConfig& GlobalConfig(); |
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void SetPriorityBusy(TInt aWgId); |
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void SetPriorityNormal(TInt aWgId); |
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void SetPriorityHigh(TInt aWgId); |
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void ResetTargets(); |
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void RequestTimerCallbackL(); |
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void GetFreeMemory(TInt& aCurrentFreeMemory); |
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void GetFreeSwapSpace(TInt& aCurrentFreeSwapSpace); |
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TActionTriggerType ActionTrigger() const; |
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#ifdef CLIENT_REQUEST_QUEUE |
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void ActionsCompleted(TInt aBytesFree, TBool aMemoryGood); |
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TInt GoodRamThreshold() const; |
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TInt LowRamThreshold() const; |
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#endif |
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void RequestFreeMemoryL(TInt aBytesRequested, TBool aDataPaged); |
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void RequestFreeMemoryPandSL(TInt aBytesRequested); |
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/* |
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* Sets the RProperty associated with KOomMemoryMonitorStatusPropertyKey |
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* It checks if the value is going to be changed. |
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* If the new value is the same as the old one then the property is not updated |
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* If the new value is different from the previously set one then the property is update |
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* |
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* @param aNewValue one of TMemoryMonitorStatusPropertyValues |
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*/ |
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void SetMemoryMonitorStatusProperty(const TMemoryMonitorStatusPropertyValues aValue); |
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|
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private: |
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CMemoryMonitor(); |
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void ConstructL(); |
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#ifndef CLIENT_REQUEST_QUEUE |
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static TInt WatchdogStatusStatusChanged(TAny* aPtr); |
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void HandleWatchdogStatusCallBack(); |
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TBool FreeMemoryAboveThreshold(TInt& aCurrentFreeMemory); void CloseNextApp(); |
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#endif |
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void RefreshThresholds(); |
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|
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public: |
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// All members are owned |
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// generally useful sessions |
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RFs iFs; |
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RWsSession iWs; |
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|
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TBool iDataPaged; |
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|
4
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private: //data |
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|
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// parameters for OOM watcher. |
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TInt iLowRamThreshold; |
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TInt iGoodRamThreshold; |
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TInt iLowSwapThreshold; |
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TInt iGoodSwapThreshold; |
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TInt iCurrentRamTarget; |
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TInt iCurrentSwapTarget; |
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|
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|
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|
4
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#ifdef CLIENT_REQUEST_QUEUE |
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TInt iClientBytesRequested; |
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#endif |
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// event receivers |
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|
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/** |
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* The active object which monitors the kernel change notifier for changes in the low and good thresholds |
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* Own |
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*/ |
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COutOfMemoryWatcher* iOOMWatcher; |
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|
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|
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CWservEventReceiver* iWservEventReceiver; |
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|
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#ifndef CLIENT_REQUEST_QUEUE |
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// parameters for P&S watcher. |
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/** |
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* The handle to the P&S property that can be used to initiate OOM Monitor actions |
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*/ |
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RProperty iWatchdogStatusProperty; |
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|
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/** |
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* The active object which monitors the P&S property that can be used to initiate OOM Monitor actions |
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* Own. |
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*/ |
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CSubscribeHelper* iWatchdogStatusSubscriber; |
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#endif |
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|
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/** |
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* The Memory Monitor Server |
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* Own. |
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*/ |
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CMemoryMonitorServer* iServer; |
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|
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#ifdef CLIENT_REQUEST_QUEUE |
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COomClientRequestQueue* iQueue; |
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#endif |
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|
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#ifdef _DEBUG |
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/** |
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* Oom logging tool - samples free memory for profiling |
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* Own. |
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*/ |
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COomLogger* iLogger; |
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#endif |
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|
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/** |
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* A list of window group Ids, with child window groups removed such that there is one Id per application |
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* Own. |
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*/ |
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COomWindowGroupList* iOomWindowGroupList; |
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|
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/** |
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* The object responsible for identifying the best actions to run, and running them |
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* Own. |
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*/ |
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COomActionList* iOomActionList; |
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|
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/** |
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* The entire Oom Monitor configuration |
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* Own. |
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*/ |
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COomConfig* iConfig; |
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|
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/** |
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* The most recent value the memory monitor status property was set to |
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*/ |
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TInt iLastMemoryMonitorStatusProperty; |
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|
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TActionTriggerType iActionTrigger; |
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}; |
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|
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|
206 |
#endif /*OOMMEMORYMONITOR_H*/ |