1 /*

     2 * Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: A connection manager object uses this callback function to indicate

    15 * that a change in the status of the bearer has occurred.

    16 *

    17 */

    18 

    19 

    20 #ifndef __IMPSBEAREROBSERVERCALLBACK_H__

    21 #define __IMPSBEAREROBSERVERCALLBACK_H__

    22 

    23 #include <e32base.h>

    24 

    25 //This must be kept as low as possible

    26 const TInt KMaxNumberOfSubscribers         = 3;

    27 

    28 //Possible events

    29 enum TImpsBearerEvent

    30     {

    31     EImpsBearerActive = 0,

    32     EImpsBearerSuspended,

    33     EImpsBearerLost

    34     };

    35 

    36 // CLASS DECLARATION

    37 

    38 class MImpsBearerObserverCallback

    39     {

    40     public:

    41 

    42         /**

    43         * A connection manager object uses this callback function to indicate

    44         * that a change in the status of the bearer has occurred. It is important

    45         * to note that a call to the notification handler (HandleBearerEventL())

    46         * takes place inside the RunL() method of a Connection Manager, so the

    47         * listening object MUST return the control to the Manager AS SOON AS

    48         * POSSIBLE in order not to clog the scheduler.

    49         *

    50         * @param TImpsBearerEvent The event that took place

    51         * @param TBool In case of EImpsBearerLost, indicates whether connection

    52         *              was authoritatively closed (i.e. by the user)

    53         */

    54         virtual void HandleBearerEventL( const TImpsBearerEvent aBearerEvent, TBool aIsAuthClose ) = 0;

    55     };

    56 

    57 #endif    // __IMPSBEAREROBSERVERCALLBACK_H__

    58 

    59 // End of File