diff -r 000000000000 -r 4e1aa6a622a0 sensorservices/sensorserver/inc/server/sensrvsession.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sensorservices/sensorserver/inc/server/sensrvsession.h	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,176 @@
+/*
+* Copyright (c) 2006-2008 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:  Server side client session implementation.
+*
+*/
+
+
+#ifndef SENSRVSESSION_H
+#define SENSRVSESSION_H
+
+#include <e32base.h>
+#include "sensrvtypes.h"
+#include "sensrvresourcechannelinfo.h"
+
+//Forward declarations
+class CSensrvServer;
+class CSensrvProxyManager;
+class CSensrvMessage;
+class CSensrvChannelChangeQueue;
+
+/**
+*  Represents a session for a client thread on the server-side.
+*  A session acts as a channel of communication between the client 
+*  and the server. 
+*
+*  @since S60 5.0
+*/
+class CSensrvSession : public CSession2
+    {
+    public:  // Constructors and destructor
+        
+        /**
+        * Two-phased constructor.
+        */
+        static CSensrvSession* NewL( CSensrvServer& aServer, 
+                                     CSensrvProxyManager& aProxyManager,
+                                     TSecureId aSecureId );
+        
+        /**
+        * Destructor.
+        */
+        virtual ~CSensrvSession();
+        
+        /**
+        * Get the Secure ID of the client process.
+        *
+        * @since S60 5.0
+        * @return Secure ID of the process.
+        */
+        TSecureId SecureId();
+        
+        /**
+        * Notifies client if it is interested in channel change notifications
+        *
+        * @since S60 5.0
+        * @param[in] aChangedChannel Channel information of the channel.
+        * @param[in] aChangeType If ESensrvChannelAdded, channel is a newly available
+        *                        channel. 
+        *                        If ESensrvChannelRemoved, channel was removed and is  
+        *                        no longer available.        
+        */
+        void NotifyChannelChange( const TSensrvResourceChannelInfo& aChangedChannel,
+                                  TSensrvChannelChangeType aChangeType );
+        
+    protected:  // Functions from base classes
+        
+        /**
+        * From CSession2
+        *
+        * @since S60 5.0
+        * @param aMessage The message containing the client request
+        */
+        virtual void ServiceL( const RMessage2& aMessage );
+
+    private:
+
+        /**
+        * C++ default constructor.
+        */
+        CSensrvSession( CSensrvServer& aServer, 
+                        CSensrvProxyManager& aProxyManager,
+                        TSecureId aSecureId );
+
+        /**
+        * By default Symbian 2nd phase constructor is private.
+        */
+        void ConstructL();
+
+        /**
+        * Completes asynchronous change notification message.     
+        * Message must exist and have valid handle
+        * 
+        * @since S60 5.0
+        * @param aSet Set that was met. There must be met data in this set.
+        *        The set is removed from met sets list and deleted if
+        *        completion of message is successful. Otherwise
+        *        the set remains in the list.
+        */
+        void CompleteChangeNotificationMessage(const TSensrvResourceChannelInfo& aChangedChannel,
+                                               TSensrvChannelChangeType aChangeType);
+
+    private:    // Data
+
+        /**
+        * Server reference. 
+        * Not own.
+        */
+        CSensrvServer& iServer; 
+        
+        /**
+        * Proxy manager reference.
+        * Not own.
+        */
+        CSensrvProxyManager& iProxyManager;
+        
+        /**
+        * Reuse synchronous messages to improve OOM cleanup.
+        * Own
+        */
+        CSensrvMessage* iSyncMessage;
+        
+        /**
+        * Reuse data listening messages to improve cleanup and performance.
+        * Own
+        */
+        CSensrvMessage* iAsyncDataMessage;
+        
+        /**
+        * Reuse property listening messages to improve cleanup and performance.
+        * Own
+        */
+        CSensrvMessage* iAsyncPropertyMessage;
+
+        /**
+        * Reuse condition listening messages to improve cleanup and performance.
+        * Own
+        */
+        CSensrvMessage* iAsyncConditionMessage;
+        
+        /**
+        * Reuse channel change messages to improve cleanup and performance.
+        * Own
+        */
+        CSensrvMessage* iAsyncChannelChangeMessage;
+
+        /**
+        * Secure ID of the process which has been created this session.
+        */
+        TSecureId iSecureId; 
+        
+        /**
+        * Queue for channel change notifications.
+        * Own
+        */
+        CSensrvChannelChangeQueue* iChannelChangeQueue;
+        
+        /**
+        * Search params of the active channel change notification.
+        */
+        TSensrvResourceChannelInfo iChannelChangeSearchParams;
+
+    };
+
+
+#endif // SENSRVSESSION_H