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/*
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* Copyright (c) 2007 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:
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*
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*/
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#ifndef GSWATCHDOG_INTERFACE_H
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#define GSWATCHDOG_INTERFACE_H
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// System includes
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#include <e32base.h>
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#ifdef _DEBUG
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#define GS_ENABLE_WATCH_DOG
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#endif
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// CONSTANTS
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// CLASS DECLARATION
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/**
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* MGSWatchDog is responsible for quarantining plugins and updating blacklist
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* for crashing GS plugins. This is the class responsible for keeping GS
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* application functional even if some plugin to panics all the time.
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*
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* This is the interface for GSWatchDog. Client has no need to know the actual
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* implementation as it is owned by GS application.
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*
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* @since Series60_3.2
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*/
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class MGSWatchDog
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{
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public: // New
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/**
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* Adds plugin to quarantine. In case GS crashes, quarantined plugin
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* will be blacklisted so it is not loaded in next GS run. Same plugin
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* can be quarantined multiple times or even have several uid instances
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* in quarantine if needed as long as all these are removed
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* correspondingly.
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*
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* NOTE: Plugin must ALWAYS be removed from quarantine after plugin's
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* function execution.
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* 1. QuarantineL().
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* 2. Call quarantined plugin function.
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* 3. RemoveFromQuarantineL().
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*
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* @param aPluginUid uid of the quarantined plugin.
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*/
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virtual void QuarantineL( TUid aPluginUid ) = 0;
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/**
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* Removes plugin from quarantine. In case plugin is not removed from
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* quarantine before GS exits, the plugin will be blacklisted during
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* next GS startup.
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*
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* @param aPluginUid uid of the plugin to be removed from quarantine.
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*/
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virtual void RemoveFromQuarantineL( TUid aPluginUid ) = 0;
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/**
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* @return ETrue if GS exited cleanly last time.
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* EFalse if GS crashed during last execution.
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*/
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virtual TBool WasCleanExitL() = 0;
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/**
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* This must be called in all the cases GS exits normally. If GS panics,
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* this will not be called resulting in banning of all quarantined
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* plugins.Increments iRunsAfterCrash counter for blacklisted plugins.
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* Sets iGSAppRunning to EFalse.
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*/
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virtual void ReportCleanExitL() = 0;
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/**
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* Checks if plugin is in blacklist. This can be used to determine if
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* plugin should be loaded.
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*
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* @return ETrue in case plugin is in blacklist and should not be loaded.
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* EFalse in case plugin should not be loaded
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*/
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virtual TBool IsInBlackList( TUid aPluginUid ) = 0;
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};
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#endif // GSWATCHDOG_INTERFACE_H
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// End of File
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