diff -r ced935b952ef -r 6cd49ffea600 sysresmonitoring/oommonitor/inc/oomclientrequestqueue.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/sysresmonitoring/oommonitor/inc/oomclientrequestqueue.h Thu Jul 22 16:35:22 2010 +0100 @@ -0,0 +1,134 @@ +/* +* Copyright (c) 2006-2010 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: COomClientRequestQueue.cpp. +* +*/ + + +#ifndef COOMCLIENTREQUESTQUEUE_H +#define COOMCLIENTREQUESTQUEUE_H + +#include +#include +#include + +#include "oommemorymonitor.h" + +class COomClientRequestQueue; +class CMemoryMonitor; +class CSubscribeHelper; + +class TClientRequest + { +public: + TClientRequest(TActionTriggerType aClientRequestType, TInt aBytesRequested); + TClientRequest(TActionTriggerType aClientRequestType, const RMessage2& aRequestFreeRam); +public: + TActionTriggerType iClientRequestType; + TInt iBytesRequested; + RMessage2 iRequestFreeRamMessage; + TSglQueLink iLink; + }; + +/* + * If two client requests are queued, the COomClientRequestTimer is used to wait after the first request + * has been completed, to allow the first client time to allocate the memory it requested. + * + * @lib oommonitor.lib + * @since S60 v5.0 + */ +NONSHARABLE_CLASS(COomClientRequestTimer) : public CTimer + { +public: + static COomClientRequestTimer* NewL(COomClientRequestQueue& aQueue); +private: + COomClientRequestTimer(COomClientRequestQueue& aQueue); + void RunL(); + +private: //data + COomClientRequestQueue& iClientRequestQueue; + }; + +/** + * Queues client requests so that the actual RAM level of the device is in a state where it can be more + * accurately determined whether more actions need to be run + * + * @lib oommonitor.lib + * @since S60 v5.0 + */ +NONSHARABLE_CLASS(COomClientRequestQueue) : public CBase + { +public: + + // Constructors and destructor + + /** + * Destructor. + */ + ~COomClientRequestQueue(); + + /** + * Two-phased constructor. + */ + static COomClientRequestQueue* NewL(CMemoryMonitor& aMonitor); + + CMemoryMonitor& Monitor(); + + void RequestFreeMemoryL(const RMessage2& aMessage); + void RequestOptionalRamL(const RMessage2& aMessage); + void ActionsCompleted(TInt aBytesFree, TBool aMemoryGood); + void RequestTimerCallbackL(); + +private: + + /** + * Constructor for performing 1st stage construction + */ + COomClientRequestQueue(CMemoryMonitor& aMonitor); + + /** + * EPOC default constructor for performing 2nd stage construction + */ + void ConstructL(); + + static TInt WatchdogStatusStatusChanged(TAny* aPtr); + void HandleWatchdogStatusCallBack(); + void AddClientRequestL(TClientRequest& request); + void StartClientRequestL(); + + // parameters for P&S watcher. + + /** + * The handle to the P&S property that can be used to initiate OOM Monitor actions + */ + RProperty iWatchdogStatusProperty; + + /** + * The active object which monitors the P&S property that can be used to initiate OOM Monitor actions + * Own. + */ + CSubscribeHelper* iWatchdogStatusSubscriber; + + TSglQue iQueue; + + TBool iClientRequestActive; + + CMemoryMonitor& iMonitor; + + COomClientRequestTimer* iClientRequestTimer; + + TTime iLastClientCompletedTime; + }; + +#endif // COOMCLIENTREQUESTQUEUE_H