/*

* Copyright (c) 2002 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:  Implementation of the CProfileUtilitySingletonImpl.

*

*/

// INCLUDE FILES

#include "CProfileUtilitySingletonImpl.h"

#include "CProfilesLocalFeatures.h"

#include "ProfilesDebug.h"

// ============================ MEMBER FUNCTIONS ===============================

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

// CProfileUtilitySingletonImpl::CProfileUtilitySingletonImpl

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CProfileUtilitySingletonImpl::CProfileUtilitySingletonImpl()

    {

    }

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

// CProfileUtilitySingletonImpl::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CProfileUtilitySingletonImpl::ConstructL()

    {

    iLocalFeatures = CProfilesLocalFeatures::NewL();

    }

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

// CProfileUtilitySingletonImpl::NewL

//

// (other items were commented in a header).

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

//

CProfileUtilitySingletonImpl* CProfileUtilitySingletonImpl::NewL()

    {

    CProfileUtilitySingletonImpl* self

        = new ( ELeave ) CProfileUtilitySingletonImpl();

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop(); // self

    return self;

    }

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

// CProfileUtilitySingletonImpl::ProfilesLocalFeatures

//

// (other items were commented in a header).

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

//

MProfilesLocalFeatures& CProfileUtilitySingletonImpl::ProfilesLocalFeatures()

    {

    return *iLocalFeatures;

    }

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

// CProfileUtilitySingletonImpl::IncrementReferences

//

// (other items were commented in a header).

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

//

void CProfileUtilitySingletonImpl::IncrementReferences()

    {

    ++iReferences;

    }

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

// CProfileUtilitySingletonImpl::DecrementReferences

//

// (other items were commented in a header).

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

//

TBool CProfileUtilitySingletonImpl::DecrementReferences()

    {

    return ( --iReferences <= 0 );

    }

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

// CProfileUtilitySingletonImpl::~CProfileUtilitySingletonImpl

//

// (other items were commented in a header).

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

//

CProfileUtilitySingletonImpl::~CProfileUtilitySingletonImpl()

    {

    delete iLocalFeatures;

    }

// ========================== OTHER EXPORTED FUNCTIONS =========================

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

// ProfileUtilityInstanceL creates an implementation of MProfileUtilitySingleton

// if needed, increments the reference count and returns a reference to the only

// instance of it.

// Returns a reference to the only instance of MProfileUtilitySingleton.

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

//

EXPORT_C MProfileUtilitySingleton& ProfileUtilityInstanceL()

    {

    CProfileUtilitySingletonImpl* instance =

        static_cast<CProfileUtilitySingletonImpl*>( Dll::Tls() );

    if( instance == NULL )

        {

        instance = CProfileUtilitySingletonImpl::NewL();

        TInt err( Dll::SetTls( instance ) );

        if( err )

            {

            delete instance;

            //delete static_cast<CProfileUtilitySingletonImpl*>( instance );

            User::Leave( err );

            }

        }

    instance->IncrementReferences();

    //return static_cast<MProfileUtilitySingleton&>( instance );

    return *instance;

    }

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

// ReleaseProfileUtility decrements the count of references to the only instance

// of MProfileUtilitySingleton implementation and releases the resources if

// there are no more references to it.

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

//

EXPORT_C void ReleaseProfileUtility()

    {

    TAny* instance = Dll::Tls();

    if( instance != NULL )

        {

        CProfileUtilitySingletonImpl* singleton =

            static_cast<CProfileUtilitySingletonImpl*>( instance );

        if( singleton->DecrementReferences() )

            {

            delete singleton;

            Dll::SetTls( NULL );

            }

        }

    }

//  End of File