/*

* Copyright (c) 2004-2009 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        : MStateModel.h

* Part of     : NetworkMonitor

* See class definition below.

* Version     : SIP/4.0

*

*/

/**

 @internalComponent

*/

#ifndef __MSTATEMODEL_H__

#define __MSTATEMODEL_H__

// INCLUDES

#include <in_sock.h>	// TInetAddr

#include "SipStackServerDefs.h"	// TTransactionId

#include "sipnetworkobserver.h"

// FORWARD DECLARATIONS

class CSIPRequest;

class CSIPResponse;

class TSIPTransportParams;

class CUri8;

// CLASS DEFINITION

/**

 * MStateModel defines an interface for the CSIPConnection state model

 */

class MStateModel

	: public MSIPNetworkObserver

	{

	public: // Enumerations

		/// Network states

		enum TState

			{

			EInit,

			EInactiveMonitoring,

			EInactiveConnecting,

			EActiveResolving,

			EActiveResolved,

			ESuspended,

			EUnavailable,

			EMaxStates

			};

	public:	// Constructors and destructor

		/// Virtual destructor

		virtual ~MStateModel() {};

	public: // Abstract methods

		virtual void SendL( const TSIPTransportParams& aParams,

		                    CSIPRequest& aRequest,

		                    TBool aForceUDP,

		                    const CUri8* aOutboundProxy,

							const TInetAddr& aRemoteAddr,

							TRequestStatus& aStatus ) = 0;

 		virtual void SendL( const TSIPTransportParams& aParams,

 		                    CSIPResponse& aResponse,

                  			TTransactionId aId,

							TRequestStatus& aStatus ) = 0;

		virtual MStateModel::TState StateValue() const = 0;

		virtual void EnterState( MStateModel::TState aState,

								 TInt aError ) = 0;

		virtual TInt Error() const = 0;

	};

#endif // __MSTATEMODEL_H__