/*

* Copyright (c) 2002-2004 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:  A base class for active handlers

*

*/

#ifndef CACCSRVHANDLERBASE_H

#define CACCSRVHANDLERBASE_H

// INCLUDE FILES

#include <e32base.h>

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

class MAccSrvConnectionControllerObserver;

// CLASS DECLARATION

/**

*  Base class for asynchronous handlers.

*  Class is meant only for inheritance.

*

*  @lib AccServer.lib

*  @since S60 3.1

*/

NONSHARABLE_CLASS( CAccSrvHandlerBase ) : public CActive

    {

    public:  // Constructors and destructor

        /**

        * Destructor.

        */

        virtual ~CAccSrvHandlerBase();

    public: // New functions

        /**

        * Function provided by this active object for starting asynchronous handling.

        *

        * @since S60 3.1

        * @return void

        */

        void IssueRequest();

    protected:  // Functions from base classes

        /**

        * From CActive

        * Handles an active object's request completion event.

        *

        * @since S60 3.1

        * @return void

        */

        virtual void RunL()=0;

        /**

        * Implements cancellation of an outstanding request.

        * This function is called as part of the active object's Cancel().

        *

        * @since S60 3.1

        * @return void

        */

        void DoCancel();

        /**

        * From CActive

        * The active scheduler calls this function if this active object's

        * RunL() function leaves.

        *

        * @since S60 3.1

        * @param aError The leave code

        * @return KErrNone, when error has been handled

        */

        virtual TInt RunError( TInt aError );

    protected:  // New functions

        /**

        * C++ default constructor.

        */

        CAccSrvHandlerBase();

        /**

        * Constructor with notify handling.

        */

        CAccSrvHandlerBase( MAccSrvConnectionControllerObserver* aCallback );

    protected:  // Functions from base classes

    private:

    public:     // Data

    protected:  // Data

        MAccSrvConnectionControllerObserver* iCallback; //not owned

    private:    // Data

    public:     // Friend classes

    protected:  // Friend classes

    private:    // Friend classes

};

#endif      // CACCSRVHANDLERBASE_H

// End of File