/*

* 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: Shutdown Observer

*

*/

#include <e32base.h>

#include "wdselfshutdownobserver.h"

#include "mdscommoninternal.h"

// Print macro

#ifdef _DEBUG

#include <e32svr.h>

#define PRINT(x) RDebug::Print x

#else

#define PRINT(x)

#endif

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

// CWDSelfShutdownObserver::NewL()

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

//

EXPORT_C CWDSelfShutdownObserver* CWDSelfShutdownObserver::NewL( MWDSelfShutdownObserver& aObserver/*, const TUid& aKeyCategory */)

    { 

    CWDSelfShutdownObserver* self = new( ELeave )CWDSelfShutdownObserver( aObserver/*, aKeyCategory */);

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CWDSelfShutdownObserver::CWDSelfShutdownObserver()

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

//

CWDSelfShutdownObserver::CWDSelfShutdownObserver( MWDSelfShutdownObserver& aObserver/*, const TUid& aKeyCategory */)

    : CActive( CActive::EPriorityStandard ), iObserver( aObserver )/*, iKeyCategory( aKeyCategory )*/

    {       

    }

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

// CWDSelfShutdownObserver::ConstructL()

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

//

void CWDSelfShutdownObserver::ConstructL()

    {

    PRINT(_L("CWDSelfShutdownObserver::ConstructL()"));

    TInt error = RProperty::Define(KWatchdogPSShutdown, KShutdown,RProperty::EInt,KAllowAllPolicy,KPowerMgmtPolicy);

    RProperty::Set(KWatchdogPSShutdown,KShutdown,0);

    // attach to the property    

    User::LeaveIfError( iProperty.Attach(KWatchdogPSShutdown,KShutdown,EOwnerThread) );

    CActiveScheduler::Add( this );

    // wait for the previously attached property to be updated

    iProperty.Subscribe(iStatus);        

    SetActive();

    PRINT(_L("CWDSelfShutdownObserver::ConstructL() end"));

    }

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

// CWDSelfShutdownObserver::~CWDSelfShutdownObserver()

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

//

CWDSelfShutdownObserver::~CWDSelfShutdownObserver()

    {

    PRINT(_L("CWDSelfShutdownObserver::~CWDSelfShutdownObserver()"));

    Cancel();

    iProperty.Close();

    PRINT(_L("CWDSelfShutdownObserver::~CWDSelfShutdownObserver() end"));

    }

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

// CWDSelfShutdownObserver::RunL()

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

//

void CWDSelfShutdownObserver::RunL()

    {

    PRINT(_L("CWDSelfShutdownObserver::RunL()"));

    // resubscribe before processing new value to prevent missing updates

    iProperty.Subscribe(iStatus);

    SetActive();

    // retrieve the Uid of the package going to be updated

    TInt value = 0;

    const TInt err = iProperty.Get(value);

    User::LeaveIfError(err);

    // observer callback

    if (value)

        {

        iObserver.SelfShutdownNotification();

        }

    }

TInt CWDSelfShutdownObserver::RunError( TInt /*aError*/ )

    {

    return KErrNone;

    }

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

// CWDSelfShutdownObserver::DoCancel()

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

//

void CWDSelfShutdownObserver::DoCancel()

    {

    iProperty.Cancel();

    }

// End of file