/*

* 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:   The header file of the CClkSrvMain class.

*

*/

#ifndef __CLOCKSERVER_H__

#define __CLOCKSERVER_H__

// System includes

#include <e32base.h>

// User includes

#include "clocktimesourceinterface.hrh"

// Forward declarations

class CClkSrvSession;

class CClkSrvImpl;

// Class declaration

/**

* @class CClkSrvMain

* @brief ClockServer server side module.

*/

class CClkSrvMain : public CServer2

	{

	public:			// New functions

		/**

		* @brief Two phased constructor

		* @return CClkSrvMain* Pointer to an object of CClkSrvMain

		*/

		static CClkSrvMain* NewL();

		/**

		* @brief The destructor

		*/

		~CClkSrvMain();

	public:			// New functions

		/**

        * @brief Returns a reference to iSessionQue.

        * @return TDblQue<CClkNitzSession>&

        */

        TDblQue< CClkSrvSession >& SessionQue();

        /**

        * @brief Asks the session to notify the client about change in data.

        * @param aWhatChanged This indicates what was changed.

        * @param aWhoChanged The entity which caused the change. Will usually be the plug-in id.

        * @param aNotification KErrNone if there was no error.

        */

        void NotifyAboutChange( TChangedComponent aWhatChanged, TInt aWhoChanged, TInt aNotification );

        /**

		* @brief Returns the id of the currently loaded plugin.

		* @param aPluginId This will be filled with the id of the active plugin read from cenrep.

		* @return TInt An error code.

		*/

		TInt GetActivePluginL( TInt& aPluginId ) const;

		/**

		* @brief Updates the id of the currently loaded plugin.

		* @param aPluginId The id of the plugin with which the cenrep should be updated.

		* @return TInt An error code.

		*/				

		TInt SetActivePluginL( TInt aPluginId );	

	public:			// From base classes

		/**

		* @brief From CServer2, returns a new session for communication.

		* @param aVersion The version object having the version info of the server

		* @param aMessage of type RMessage

		* @return CSession2* a Pointer to a CSession2 object.

		*/

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

	private:		// New functions

		/**

		* @brief Performs the second phase of construction

		*/

		void ConstructL();

		/**

		* @brief The C++ default constructor

		*/

		CClkSrvMain( TInt aPriority );

		/**

		* @brief Performs the restoration operations like activating plugins that were previously activated and so on.

		*/

		void RestoreStateL();

    private:		// Data

    	/**

    	* @var iSessionQue

    	* @brief Is a doubly linked list of type CClkSrvSession

    	*/

    	TDblQue< CClkSrvSession >			iSessionQue;

    	/**

    	* @var iClkSrvImpl

    	* @brief Is a pointer to an object of CClkSrvImpl. Only one instance, used by all the sessions.

    	*/

    	CClkSrvImpl*							iClkSrvImpl;

	};

#endif 		// __CLOCKSERVER_H__

// End of file