--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/satengine/SatServer/Engine/inc/CSatSRefreshSubSession.h	Tue Feb 02 01:11:09 2010 +0200
@@ -0,0 +1,198 @@
+/*
+* Copyright (c) 2002-2005 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:  Handles the refresh sub-session commands.
+*
+*/
+
+
+#ifndef CSATSREFRESHSUBSESSION_H
+#define CSATSREFRESHSUBSESSION_H
+
+#include "CSatSSubSession.h"
+#include "MSatRefreshSubSession.h"
+#include "TSatEventMediator.h"
+
+class CSatSSession;
+class MSatCommand;
+
+/**
+*  Handles the refresh commands.
+*
+*  @lib SatServer
+*  @since 2.6
+*/
+class CSatSRefreshSubSession : public CSatSSubSession,
+                               public MSatRefreshSubSession
+    {
+    public:  // Constructors and destructor
+
+        /**
+        * Two-phased constructor.
+        * @param aSession Session
+        * @param aEventMediator Event handler
+        */
+        static CSatSRefreshSubSession* NewL(
+            CSatSSession& aSession,
+            TSatEventMediator& aEventMediator );
+
+        /**
+        * Destructor.
+        */
+        virtual ~CSatSRefreshSubSession();
+
+    public: // Functions from base classes
+
+        /**
+        * From CSatSSubSession
+        * @param aMessage Message from the client.
+        */
+        void HandleCommandL( const RMessage2& aMessage );
+
+        /**
+        * From MSatRefreshSubSession.
+        * @param aRefresh Refresh data.
+        */
+        void QueryClient( const RSat::TRefreshV2& aRefresh );
+
+        /**
+        * From MSatRefreshSubSession.
+        * @param aRefresh Refresh data.
+        */
+        void NotifyClient( const RSat::TRefreshV2& aRefresh );
+
+        /**
+        * From MSatRefreshSubSession.
+        */
+        void NotifyClientCancel();
+
+    private: // New functions
+
+        /**
+        * Handles the NotifyRefresh command from SatClient.
+        * @param aMessage Message from the client.
+        */
+        void NotifyRefreshAllowed( const RMessage2& aMessage );
+
+        /**
+        * Cancels the allow refresh.
+        * @param aMessage Message from the client.
+        */
+        void CancelNotifyAllowRefresh( const RMessage2& aMessage );
+
+        /**
+        * Handles the RefreshAllowed command from SatClient.
+        * @param aMessage Message from the client.
+        */
+        void RefreshAllowed( const RMessage2& aMessage );
+
+        /**
+        * Handles the refresh notification.
+        * @param aMessage Message from the client.
+        */
+        void NotifyRefresh( const RMessage2& aMessage );
+
+        /**
+        * Cancels the notify refresh.
+        * @param aMessage Message from the client.
+        */
+        void CancelNotifyRefresh( const RMessage2& aMessage );
+
+        /**
+        * Sends the client's completion to SatServer.
+        * @param aMessage Message from the client.
+        */
+        void CompleteRefresh( const RMessage2& aMessage );
+
+        /**
+        * Checks whether current client is interested about this refresh.
+        * @param aRefresh Refresh data.
+        */
+        TBool VerifyObservedFiles( const RSat::TRefreshV2& aRefresh ) const;
+
+        /**
+        * Timer call back for clients refresh query response timeout.
+        * @param aRefreshSubSession Reference to this class.
+        */
+        static TInt TimerQueryCallback( TAny* aRefreshSubSession );
+
+        /**
+        * Timeout handler for the client's response of refresh query.
+        */
+        void QueryTimeout();
+
+        /**
+        * Timer call back for clients refresh notify response timeout.
+        * @param aRefreshSubSession Reference to this class.
+        */
+        static TInt TimerNotifyCallback( TAny* aRefreshSubSession );
+
+        /**
+        * Timeout handler for the client's response of refresh notify.
+        */
+        void NotifyTimeout();
+
+    private:
+
+        /**
+        * C++ default constructor.
+        * @param aSession
+        * @param aEventMediator Event handler
+        */
+        CSatSRefreshSubSession(
+            CSatSSession& aSession,
+            TSatEventMediator& aEventMediator );
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        */
+        void ConstructL();
+
+    private:    // Data
+
+        // Message for allow refresh.
+        RMessage2 iRefreshAllowMessage;
+
+        // Indicates if allow refresh has not been complited.
+        TBool iRefreshAllowPending;
+
+        // Messge for refresh.
+        RMessage2 iNotifyRefreshMessage;
+
+        // Indicates if refresh has not been completed.
+        TBool iNotifyRefreshPending;
+
+        // Event mediator.
+        TSatEventMediator& iEventMediator;
+
+        // Timer for securing user query.
+        CPeriodic* iQueryTimer;
+
+        // Timer for securing refresh complete.
+        CPeriodic* iNotifyTimer;
+
+        // A client has been queried to allow refresh and we are waiting
+        // for response. Enables discarding of timed out responses.
+        TBool iClientQueryPending;
+
+        // A client has been notified about refresh and we are waiting
+        // for response. Enables discarding of timed out responses.
+        TBool iClientNotifyPending;
+
+        // A client has allowed refresh and is waiting for Refesh notification.
+        // Flag is used when notificating Refresh cancel for clients waiting.
+        TBool iClientWaitingRefresh;
+
+    };
+
+#endif      // CSATSREFRESHSUBSESSION_H