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/*
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* Copyright (c) 2008 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: Classes for executing GOOM actions (e.g. closing applications and running plugins).
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*
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*/
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#ifndef GOOMACTION_H_
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#define GOOMACTION_H_
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#include <e32base.h>
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class MGOomActionObserver;
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/*
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* The base class for all GOOM actions (i.e. close application or run GOOM plug-in).
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*
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* A base class is used because both types of action have common aspects, specifically:
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* - They are prioritised according to application idle time
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* - They need to be prioritised against each other
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* - For each action it is possible to either continue immediately or to wait for completion
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*
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* @lib goommonitor.lib
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* @since S60 v5.0
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*/
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NONSHARABLE_CLASS(CGOomAction) : public CBase
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{
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public:
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virtual ~CGOomAction();
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/**
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* Activate the OOM action
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*
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* @since S60 5.0
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* @param aBytesRequested ?description
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*/
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virtual void FreeMemory(TInt aBytesRequested, TBool aUseSwRendering) = 0;
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/**
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* @since S60 5.0
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* @return ETrue if the action is currently freeing memory, else EFalse
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*/
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virtual TBool IsRunning() = 0;
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protected:
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//
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/**
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* To be called by the derived class after the memory has been freed (or if it fails)
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*
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* @since S60 5.0
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* @param aError KErrNone if memory has successfully been freed, otherwise any system wide error code
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*/
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void MemoryFreed(TInt aError);
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CGOomAction(MGOomActionObserver& aStateChangeObserver);
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private: //data
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enum TGOomActionState
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{
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EGOomIdle,
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EGOomFreeingMemory
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};
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TGOomActionState iState;
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protected:
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MGOomActionObserver& iStateChangeObserver;
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};
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#endif /*GOOMACTION_H_*/
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