locationrequestmgmt/locationserver/inc/EPos_CPosModulesStatus.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 17 Sep 2010 08:37:32 +0300
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Revision: 201037 Kit: 201037
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/*
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* Copyright (c) 2005-2009 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 CPOSMODULESSTATUS_H
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#define CPOSMODULESSTATUS_H
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//  INCLUDES
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#include <lbs.h>
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#include "EPos_MPosStatusObserver.h"
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#include <lbs/epos_mposmodulesobserver.h>
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#include "epos_mposmodulestatusmanager.h"
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// FORWARD DECLARATIONS
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class CPosModules;
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// CLASS DECLARATION
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/**
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*  Holds the status of all installed modules.
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*  Used to get current module status and to get notification of 
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*  module status changes.
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*/
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class CPosModulesStatus : public CBase,
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                          public MPosStatusObserver,
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                          public MPosModuleStatusManager
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    {
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    public:  // Data types
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        struct TPosSubscriber
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            {
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            TAny*                   iClient;
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            TInt                    iClientTimeStamp;
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            TBool                   iToBeRemoved;
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            TBool                   iHasRequest;
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            RMessage2               iMsg;
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            TPositionModuleId       iModuleId;
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            TPositionModuleStatusEvent iEvent;
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            };
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        struct TPosModule
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            {
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            TPositionModuleId       iModuleId;
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            TPositionModuleStatus   iStatus;
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            TInt                    iDeviceTimeStamp;
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            TInt                    iDataQualityTimeStamp;
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            };
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    public:  // Constructors and destructor
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        static CPosModulesStatus* NewL(CPosModules& aModules);
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        static CPosModulesStatus* NewL(CPosModules& aModules,const TTimeIntervalMicroSeconds32& aTimerInterval);
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        virtual ~CPosModulesStatus();
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    public: //From base class
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        virtual void AddListenerL(MPosModuleStatusListener& aListener);
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        virtual void RemoveListener(MPosModuleStatusListener& aListener);
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        virtual TInt GetModuleStatus(const TPositionModuleId& aModuleId,TPositionModuleStatusBase& aStatus ) const;
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    public: // New functions
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        void NotifyModuleStatusEventL(const RMessage2& aMessage, TAny* aClient);
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        void CancelNotifyModuleStatusEventL(TAny* aClient);
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        void NotifySessionClosed(TAny* aClient);
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        void HandleSettingsChangeL(TPosModulesEvent aEvent);
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    protected:  // Functions from base classes
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        void ReportStatus(const TPositionModuleId& aImplementationUid, const TPositionModuleStatus& aStatus);
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    private:
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        CPosModulesStatus(CPosModules& aModules, const TTimeIntervalMicroSeconds32& aTimerInterval);
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        void ConstructL();
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        CPosModulesStatus( const CPosModulesStatus& );
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        CPosModulesStatus& operator= ( const CPosModulesStatus& );
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        void ValidateRequestL(const RMessage2& aMessage, TPositionModuleId& aId, TPositionModuleStatusEvent& aEvent);
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        TBool HasValidEventsQueued(TPosSubscriber& aSubscriber);
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        void NotifySubscribers(TPositionModuleStatusEvent& aOccurredEvent);
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        void NotifyListeners(TPositionModuleStatusEvent& aOccurredEvent);
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        static TInt TimerCallback(TAny* aModulesStatus);
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        TInt DoTimerCallback();
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        void RequestComplete(const RMessage2& aMessage, TInt aCompleteCode);
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        void NotifyEventToSubscriber(TPositionModuleStatusEvent& aOccurredEvent, const CPosModulesStatus::TPosSubscriber& aSubscriber);
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0
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    private:    // Data
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        CPosModules&            iModules;
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        RPointerArray< MPosModuleStatusListener > iListenerArray;
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        RArray<TPosModule>      iModuleStatusArray;
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        RArray<TPosSubscriber>  iSubscribers;
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        TInt                    iSequenceNo;
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        CPeriodic*              iTimer;
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        TTimeIntervalMicroSeconds32 iTimerInterval;
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    };
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#endif      // CPOSMODULESSTATUS_H
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// End of File