/** @file

* Copyright (c) 2005-2006 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:  Implementation of CServer2

*

*/

#ifndef C_CUPNPAVCPENGINE_H

#define C_CUPNPAVCPENGINE_H

// INCLUDES

#include <e32base.h>

#include "upnpavcpengine.pan"

// FORWARD DECLARATIONS

class CUpnpAVCPEngineSession;

class CUpnpAVCPManager;

// CLASS DECLARATION

/**

*  Simple imlementatation of server from 

* Symbian Client/Server architecture.

*

*  @since Series 60 3.1

*/

class CUpnpAVCPEngine: public CServer2

    {

	public :

		/**

		* Two-phased constructor.

		*/	

		static CUpnpAVCPEngine* NewLC();

		/**

		* Destructor.

		*/			

		~CUpnpAVCPEngine();

		/**

		* Register new server-side session 

		* it is used for manage life-time of server

		*/

		void IncrementSessions(CUpnpAVCPEngineSession* aObserver);

		/**

		* Unregister new server-side session

		* it is used for manage life-time of server		

		*/	

		void DecrementSessions(CUpnpAVCPEngineSession* aObserver);

		/**

		* Function stars server, creates CleanupStack and

		* executes ThreadFunctionL() in TRAP

		*/

		static TInt ThreadFunction( TAny* aStarted );

		/**

		* Function creates CActiveScheduler, CUpnpAVCPEngine and starts server.

		*/

		static void ThreadFunctionL();

	protected:  // From CActive

		/**

		* From CActive notify about leaves in CService2::ServiceL

		*/

		TInt RunError( TInt aError );

	private: // New methods

		/**

		* C++ default constructor.

		*/			

		CUpnpAVCPEngine( TInt aPriority );

		/**

		* Symbian 2nd phase constructor.

		*/		

		void ConstructL() ;

		/**

		* Panic client thread

		*

		* @param aMessage message to be panic

		* @param aReason panic code

		*/

		static void PanicClient( const RMessage2& aMessage, TAVCPEnginePanic aReason );

		/**

		* Panic server

		*

		* @param aPanic panic code

		*/

		static void PanicServer( TAVCPEnginePanic aPanic );

	private: // From CServer

		/**

		* From CActive notify about leaves in ServiceL

		*/	

		CSession2* NewSessionL( const TVersion& aVersion, const RMessage2& aMessage ) const;

	private: // Data

		// count of session 

		TInt        iSessionCount;

		// AVCP manager

		CUpnpAVCPManager* iAVCPManger;

    };

#endif  // C_CUPNPAVCPENGINE_H