/*

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

*

*/

#ifndef __MTCBEAREROBSERVER_H__

#define __MTCBEAREROBSERVER_H__

// INCLUDES

#include <e32std.h>

// CLASS DEFINITION

/**

 * MTcBearerObserver defines an interface for receiving bearer related

 * events such as transfer completion notifications.

 * Users of MTcBearerManager should implement this interface.

 */

class MTcBearerObserver

	{

	public: // Enumerations

		/// Identifies completed operations

		enum TOperation

			{

			/// Unknown operation

			EUnknown,

			/// The connection reached listening state

			EListen,

			// 

			EConnecting,

			/// The connection reached connected state

			EConnect,

			/// The connection finished a send operation

			ESend,

			/// The connection finished a receive operation

			EReceive

			};

	protected:	// Constructors and destructor

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

		virtual ~MTcBearerObserver() {}

	public: // Abstract methods

		/**

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

		 *

		 * @param aOp Operation that completed

		 * @param aStatus System-wide error code or KErrNone

		 */

		virtual void BearerCompletion( MTcBearerObserver::TOperation aOp,

									   TInt aStatus ) = 0;

	};

#endif // __MTCBEAREROBSERVER_H__