/*

* Copyright (c) 2008 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:  Declares main application class.

 *

*/

#ifndef __SOCKETOBSERVER_H__

#define __SOCKETOBSERVER_H__

/*!

 This class specifies the socket observer interface

 Used in conjunction with CSocketReader & CSocketWriter classes

 */

class MSocketObserver

    {

public:

    /*!

     Report a communication error.

     @param aSocketID socket being observed.

     @param aConnectionLost True if the error is a failure to read.

     @param aErrorCode associated error code.

     */

    virtual void HandleSocketError(TUint aSocketID, TBool aConnectionLost,

            TInt aErrorCode) = 0;

    /*!

     Data has been received on the socket and read into a buffer.

     @param aSocketID socket being observed.

     @param aBuffer the data buffer.

     @result ETrue to continue reading.

     @result EFalse to stop reading.

     */

    virtual TBool

            HandleDataReceived(TUint aSocketID, const TDesC8& aBuffer) = 0;

    /*!

     Data has been sent on the socket.

     @param aSocketID socket being observed

     */

    virtual void HandleWriteComplete(TUint aSocketID) = 0;

    };

#endif // __SOCKETOBSERVER_H__