1 /*

     2 * Copyright (c) 2004 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:  See class definition below.

    15 *

    16 */

    17 

    18 #ifndef __MTCBEAREROBSERVER_H__

    19 #define __MTCBEAREROBSERVER_H__

    20 

    21 // INCLUDES

    22 #include <e32std.h>

    23 

    24 // CLASS DEFINITION

    25 /**

    26  * MTcBearerObserver defines an interface for receiving bearer related

    27  * events such as transfer completion notifications.

    28  * Users of MTcBearerManager should implement this interface.

    29  */

    30 class MTcBearerObserver

    31 	{

    32 	public: // Enumerations

    33 

    34 		/// Identifies completed operations

    35 		enum TOperation

    36 			{

    37 			/// Unknown operation

    38 			EUnknown,

    39 			/// The connection reached listening state

    40 			EListen,

    41 			// 

    42 			EConnecting,

    43 			/// The connection reached connected state

    44 			EConnect,

    45 			/// The connection finished a send operation

    46 			ESend,

    47 			/// The connection finished a receive operation

    48 			EReceive

    49 			};

    50 

    51 	protected:	// Constructors and destructor

    52 

    53 		/// Virtual destructor. Prohibit deletion through this interface.

    54 		virtual ~MTcBearerObserver() {}

    55 

    56 	public: // Abstract methods

    57 

    58 		/**

    59 		 * Called by an observer connection object after a state transition.

    60 		 *

    61 		 * @param aOp Operation that completed

    62 		 * @param aStatus System-wide error code or KErrNone

    63 		 */

    64 		virtual void BearerCompletion( MTcBearerObserver::TOperation aOp,

    65 									   TInt aStatus ) = 0;

    66 

    67 	};

    68 

    69 #endif // __MTCBEAREROBSERVER_H__