sysresmonitoring/oommonitor/src/oomrunplugin.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 13 Oct 2010 14:43:04 +0300
branchRCL_3
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/*
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* Copyright (c) 2006 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 OOM actions (e.g. closing applications and running plugins).
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*
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*/
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#include "oomrunplugin.h"
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#include "OomTraces.h"
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#include "oommemorymonitor.h"
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#include "oommonitorplugin.h"
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#include "oompanic.h"
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COomRunPlugin* COomRunPlugin::NewL(TUint aPluginId, COomRunPluginConfig& aConfig, MOomActionObserver& aStateChangeObserver, COomMonitorPlugin& aPlugin, COomMonitorPluginV2* aV2Plugin)
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    {
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    FUNC_LOG;
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    COomRunPlugin* self = new (ELeave) COomRunPlugin(aPluginId, aConfig, aStateChangeObserver, aPlugin, aV2Plugin);
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    CleanupStack::PushL(self);
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    self->ConstructL(aConfig);
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    CleanupStack::Pop(self);
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    return self;
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    }
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// Run the OOM plugin in order to free memory
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// Call the COomAction::MemoryFreed when it is done
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void COomRunPlugin::FreeMemory(TInt aBytesRequested)
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    {
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    FUNC_LOG;
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    TRACES1("COomRunPlugin::FreeMemory: iPluginId = %x", iPluginId);        
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    // Ask the plugin to free some memory
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    // Do we have a V2 plugin, if so then use it
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    if (iV2Plugin)
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        iV2Plugin->FreeRam(aBytesRequested);
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    else
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        // If we only have a V1 plugin then use that
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        iPlugin.FreeRam();
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    iFreeMemoryCalled = ETrue;
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    // Wait for the required time before we signal completion.
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    __ASSERT_DEBUG(!iPluginWaiter->IsActive(), OomMonitorPanic(KStartingActivePluginWaiter));    
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    iPluginWaiter->Start();
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    }
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// Call the memory good function on the plugin but...
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// only if there is an outstanding FreeMemory request
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void COomRunPlugin::MemoryGood()
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    {
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    FUNC_LOG;
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    if (iFreeMemoryCalled)
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        {
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        iPlugin.MemoryGood();
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        iFreeMemoryCalled = EFalse;
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        }
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    }
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COomRunPlugin::~COomRunPlugin()
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    {
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    FUNC_LOG;
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    delete iPluginWaiter;
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    }
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COomRunPlugin::COomRunPlugin(TUint aPluginId, COomRunPluginConfig& aConfig, MOomActionObserver& aStateChangeObserver, COomMonitorPlugin& aPlugin, COomMonitorPluginV2* aV2Plugin) : COomAction(aStateChangeObserver), iPluginId(aPluginId), iPlugin(aPlugin), iConfig(aConfig), iV2Plugin(aV2Plugin)
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    {
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    FUNC_LOG;
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    }
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void COomRunPlugin::ConstructL(COomRunPluginConfig& aPluginConfig)
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    {
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    FUNC_LOG;
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    TInt waitDuration = CMemoryMonitor::GlobalConfig().iDefaultWaitAfterPlugin;
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    if (aPluginConfig.WaitAfterPluginDefined())
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        {
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        // If the wait duration for this plugin is overridden then use the overridden value
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        waitDuration = aPluginConfig.WaitAfterPlugin();
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        }
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    iPluginWaiter = COomPluginWaiter::NewL(waitDuration, *this);
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    }