/*

* 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:      AO for monitoring device disconnections per session

*

*/

#ifndef C_UPNPAVDEVICEACTIVE_H

#define C_UPNPAVDEVICEACTIVE_H

#include <e32std.h>

#include <e32base.h>

#include "upnpavrenderingsessionobserver.h"

class RUPnPAVControllerClient;

class MUPnPAVDeviceObserver;

/**

 *  Device active

 *

 *  Active object for listening if a device disappears.

 *

 *  @lib upnpavcontrollerclient.lib

 *  @since S60 v3.1

 */

class CUPnPAVDeviceActive : public CActive

    {

public:

    /**

     * Two-phased constructor.

     *

     * @param aServer session handle

     * @param aObserver device observer

     * @return an instance

     */

    static CUPnPAVDeviceActive* NewL( RUPnPAVControllerClient& aServer,

        MUPnPAVDeviceObserver& aObserver );

    /**

     * Destructor

     */

    virtual ~CUPnPAVDeviceActive();

private:

    /**

     * Constructor.

     */

    CUPnPAVDeviceActive( RUPnPAVControllerClient& aServer,

        MUPnPAVDeviceObserver& aObserver );

    /**

     * 2nd phase construct

     */

    void ConstructL();

protected: // From CActive

    /**

     * See e32base.h

     */

    void RunL();

    /**

     * See e32base.h

     */

    void DoCancel();

    /**

     * See e32base.h

     */

    TInt RunError( TInt aError );

public: // New functions    

    /**

     * Starts listening

     *

     * @param aId session id

     */

    void StartListening( TInt aId );

private:

    RUPnPAVControllerClient& iServer;

    TInt iId;

    MUPnPAVDeviceObserver& iObserver;       

    };

#endif // C_UPNPAVDEVICEACTIVE_H