/*

* 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:  

*

*/

#include <e32std.h>

#include <e32base.h>

#include <e32property.h>

#include <piprofiler/ProfilerTraces.h>

#include "ProfilerErrorChecker.h"

// properties

const TUid KEngineStatusPropertyCat={0x2001E5AD};

enum TEnginePropertyKeys

    {

    EProfilerEngineStatus = 8,

    EProfilerErrorStatus

    };

/*

 *

 *  CProfilerErrorChecker class implementation

 *

 */

CProfilerErrorChecker* CProfilerErrorChecker::NewL()

    {

    CProfilerErrorChecker* self = new(ELeave) CProfilerErrorChecker;

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// --------------------------------------------------------------------------------------------

CProfilerErrorChecker::CProfilerErrorChecker() :

    CActive(EPriorityStandard)

    {

    }

CProfilerErrorChecker::~CProfilerErrorChecker()

    {

    Cancel();

    iErrorStatus.Close();

    }

// --------------------------------------------------------------------------------------------

void CProfilerErrorChecker::ConstructL()

    {

    LOGTEXT(_L("Trying to attach to profiler engine error status property"));

    User::LeaveIfError(iErrorStatus.Attach(KEngineStatusPropertyCat, EProfilerErrorStatus));

    CActiveScheduler::Add(this);

    // subscribe to P&S status property

    iErrorStatus.Subscribe(iStatus);

    SetActive();

    }

// --------------------------------------------------------------------------------------------

void CProfilerErrorChecker::SetObserver(MProfilerErrorObserver* aObserver)

    {

    iObserver = aObserver;

    }

// --------------------------------------------------------------------------------------------

TInt CProfilerErrorChecker::RunError(TInt aError)

    {

    iErrorStatus.Close();

    return aError;

    }

// --------------------------------------------------------------------------------------------

void CProfilerErrorChecker::RunL()

    {

    // resubscribe before processing new value to prevent missing updates

    iErrorStatus.Subscribe(iStatus);

    SetActive();

    TInt stat(0);

    if(iErrorStatus.Get(stat) != KErrNone)

        {

        // check if error status != KErrNone

        if(stat != 0)

            {

            iObserver->HandleProfilerErrorChangeL(stat);

            }

        // reset error code

        iErrorStatus.Set(KErrNone);

        }

    }

// --------------------------------------------------------------------------------------------

void CProfilerErrorChecker::DoCancel()

    {

    iErrorStatus.Cancel();

    }

// end of file