/*

* Copyright (c) 2009 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:   

*

*/

#ifndef PROFILER_STATUS_CHECKER_H

#define PROFILER_STATUS_CHECKER_H

#include <e32std.h>

#include <e32base.h>

#include <e32property.h>    // RProperty

// CONSTANTS

const TUid KEngineStatusPropertyCat = { 0x2001E5AD };

enum TEnginePropertyKeys

    {

    EProfilerEngineStatus = 8

    };

// CLASS DECLARATIONS

class MProfilerStatusObserver

    {

    public: // Enums

        enum KProfilerStatus

            {

            EIdle = 0,

            EInitializing,

            ERunning,

            EStopping,

            ERestarting

            };

    public: // New

        virtual void HandleProfilerStatusChange(

                KProfilerStatus aStatus ) = 0;

        virtual void HandleProfilerErrorL(

                TInt aError ) = 0;

    };

class CProfilerEngineStatusChecker : public CActive

    {

public:

    inline static CProfilerEngineStatusChecker* CProfilerEngineStatusChecker::NewL();

    inline ~CProfilerEngineStatusChecker();

    inline void SetObserver(MProfilerStatusObserver* aObserver);

    inline TInt GetInitialState();

private:

    inline CProfilerEngineStatusChecker();

    inline void ConstructL();

    inline void RunL();

    inline void DoCancel();

private:

    TInt                        iPrevStat;

    MProfilerStatusObserver*    iObserver;

    RProperty                   iEngineStatus;

    };

#include <piprofiler/ProfilerEngineStatusChecker.inl>

#endif // PROFILER_STATUS_CHECKER_H