/*

* Copyright (c) 2006-2007 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:    Class definition 3G QoS enabling

*

*/

#ifndef CMCCQOSHANDLER_H

#define CMCCQOSHANDLER_H

// INCLUDES

#include <e32std.h>

#include <es_sock.h>

// FORWARD DECLARATIONS

class CMccQosSocketHandler;

class CMccQosEventMonitor;

class MMccQosEventObserver;

// CLASS DECLARATION

/**

 *

 * The main purpose of this class is to enable 3G conversational/streaming QoS

 * and secondary PDP context using RSubConnection class.

 *

 * @lib mmccsubcontroller.dll

 * @since   Series 60 3.2

 */

NONSHARABLE_CLASS( CMccQosHandler ) : public CBase

    {

#ifdef TEST_EUNIT    

    friend class UT_CMccQosHandler;

#endif    

public: // Constructors and destructor

    /**

     * NewL

     *

     * @since   S60 3.2

     * @param   Observer for RSubConnection events

     * @return  Instance of class interface

     */

    static CMccQosHandler* NewL( MMccQosEventObserver& aObserver );

    /**

     * Destructor.

     *

     * @return void

     */

    virtual ~CMccQosHandler();

public: // New functions

    /**

     * Method for enabling QoS. QoS handler will try to obtain conversational

     * or streaming traffic classes.

     *

     * @since   S60 3.2

     * @pre SetSubConnectionParams()

     * @leave KErrInUse     If QoS has been already enabled

     * @leave KErrNotReady  If SetSubConnectionParams has not been called.

     * @return void

     */

    void EnableQosL();

    /**

     * Method for disabling Qos

     *

     * @since   S60 3.2

     * @return void

     */

    void DisableQoS();

    /**

     * Method for setting params for subconnection.

     *

     * @since   S60 3.2

     * @param aConnection RConnection handle

     * @param aSocketServ RSocketServ handle

     * @param aSocket     RSocket handle

     * @return void

     */  

    void SetSubConnectionParams( RConnection& aConnection, 

        RSocketServ& aSocketServ, RSocket& aSocket );

    /**

     * Method for querying QoS status (Enabled/Disabled)

     *

     * @since S60 3.2

     * @return TBool ETrue if QoS is enabled.

     */

    TBool QoSEnabled() const;

private:

    /**

     * C++ default constructor.

     *

     * @return void

     */

    CMccQosHandler( MMccQosEventObserver& aObserver );

    /**

     * Handles sockethandler deletion. Needed because AddSocket may return

     * after the subconnection has gone down and QoS handler has been deleted.

     *

     * @since S60 v3.2

     * @return void

     */

    void HandleSocketHandlerDeletion();

private: // data

    /**

     * Pointer to RConnection handle.

     * Not Own.

     */

    RConnection* iConnection;

    /**

     * Pointer to RSocketServ handle.

     * Not Own.

     */

    RSocketServ* iSocketServ;

    /**

     * Pointer to socket object.

     * Not Own.    

     */

    RSocket* iSocket;

    /**

     * RSubConnection handle.

     */

    RSubConnection iSubConnection;

    /**

     * Pointer to object that monitors RSubConnection related events.

     * Own.

     */

    CMccQosSocketHandler* iQosSocketHandler;

    /**

     * Observer reference

     */

    MMccQosEventObserver& iObserver;

    /**

     * Instance of event monitor

     * Own.

     */

    CMccQosEventMonitor* iEventMonitor;

    };

#endif // CMCCQOSHANDLER_H

// End of File