/*

* Copyright (c) 2008-2009 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:  active object, that monitors stopping of connection

*

*/

#ifndef C_CONNECTIONSTOPPER_H

#define C_CONNECTIONSTOPPER_H

#include <e32base.h>

// FORWARD DECLARATIONS

class CVpnConnection;

/**

 *  Connection stopper callback interface.

 *  Callback interface which is used by CConnectionStopper object to notify

 *  about completion of VPN connection stopping.

 * 

 *  @lib internal (kmdserver.exe)

  */

class MConnectionStopperCallback

    {

public:

    /**

     * Notifies about completion of VPN connection stopping.

     * @param aStatus Completion status

     */

    virtual void VpnConnectionStopped( TInt aStatus ) = 0;

    };

/**

 *  Connection stopper.

 *  Active object provides functionality for stopping of VPN connection.

 *

 *  @lib internal (kmdserver.exe)

  */

class CConnectionStopper : public CActive

    {

public:

    /**

     * Two-phased constructor.

     * @param aConnection VPN connection object

     * @param aCallback Callback interface

     */

    static CConnectionStopper* NewL( CVpnConnection& aVpnConnection,

                                     MConnectionStopperCallback& aCallback );

    /**

     * Destructor.

     */

    ~CConnectionStopper();

    /**

     * Stops VPN connection. Completion is notified via MConnectionStopperCallback

     * interface.

     * @param aSilentClose Specified if a silent close in question (Delete

     *                     payloads not transmitted to remote host)

     */

    void StopVpnConnection( TBool aSilentClose );            

private:

    CConnectionStopper( CVpnConnection& aVpnConnection,

                        MConnectionStopperCallback& aCallback );

// from base class CActive

    /**

     * From CActive

     * Handles completion of asynchronous connection stopping request.

     */    

    void RunL();

    /**

     * From CActive

     * Handles cancellation of asynchronous connection stopping request.

     */    

    void DoCancel();

private: // data

    /**

     * VPN connection object.

     * Not own.

     */

    CVpnConnection&                 iVpnConnection;    

    /**

     * Callback interface.

     * Not own.

     */

    MConnectionStopperCallback&     iCallback;

    };

#endif // C_CONNECTIONSTOPPER_H