/*

* Copyright (c) 2005-2009 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:

* Name          : sipnattraversalrequestobserver.h

* Part of       : SIP NAT Traversal Controller

* Version       : SIP/5.0 

*

*/

#ifndef MSIPNATTRAVERSALREQUESTOBSERVER_H

#define MSIPNATTRAVERSALREQUESTOBSERVER_H

// INCLUDES

#include <e32std.h>

#include <in_sock.h>

// CLASS DECLARATION

/**

* @publishedPartner

* @released

*

* Callback to be implemented by the users of SIP NAT Traversal Controller.

*/

class MSIPNATTraversalRequestObserver

	{

	public:

		/**

		* The asynchronous request to NAT Traversal Controller was completed,

		* but terminal's public address is the same as its local address.

        * @param aRequestId a request ID

		* @param aCompletionCode completion code, KErrNone if successful. 

		*/

		virtual void RequestComplete(

		    TUint32 aRequestId,

		    TInt aCompletionCode ) = 0;

		/**

		* The asynchronous request to NAT Traversal Controller was completed

		* and terminal's public address related to this request was resolved.

        * @param aRequestId a request ID

		* @param aPublicAddr a public IP address

		*/

		virtual void PublicAddrResolved(

		    TUint32 aRequestId,

		    const TInetAddr& aPublicAddr ) = 0;		    

	};

#endif // MSIPNATTRAVERSALREQUESTOBSERVER_H