/*

* Copyright (c) 2006 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:  Singleton base class

*

*/

// INCLUDE FILES

#include    <e32std.h>

#include    "CCASingletonCmd.h"

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

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

// CCASingletonCmd::CCASingletonCmd

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

// might leave.

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

//

CCASingletonCmd::CCASingletonCmd()

    {

    }

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

// CCASingletonCmd::~CCASingletonCmd

// Destructor

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

//

CCASingletonCmd::~CCASingletonCmd()

    {

    Dll::SetTls( NULL );

    }

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

// CCASingletonCmd::BaseInstanceL()

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

//

TAny* CCASingletonCmd::BaseInstanceL()

    {

    TAny* instance = Dll::Tls();

    if ( !instance )

        {

        instance = ConstructSingletonInstanceL();

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

        if ( err == KErrNone )

            {

            return instance;

            }

        else

            {

            delete instance;

            User::Leave( err );

            return NULL;    // this line just keeps the compiler happy

            }

        }

    else

        {

        return instance;

        }

    }

//  End of File