diff -r 000000000000 -r 4e1aa6a622a0 sensorservices/sensorserver/inc/client/sensrvdatahandler.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sensorservices/sensorserver/inc/client/sensrvdatahandler.h	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,155 @@
+/*
+* Copyright (c) 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:  Data handler
+*
+*/
+
+
+#ifndef CSENSRVDATAHANDLER_H
+#define CSENSRVDATAHANDLER_H
+
+
+#include <e32base.h>
+
+#include "sensrvclient.h"
+
+
+class MSensrvDataHandlerObserver;
+
+/**
+ *  Data handler class
+ *
+ *  @lib SensorClient.lib
+ *  @since S60 5.0
+ */
+NONSHARABLE_CLASS( CSensrvDataHandler ) : public CActive
+    {
+    public:
+
+
+        static CSensrvDataHandler* NewL( RSensrvClient& aSensrvClient, const TSensrvChannelInfo& aChannelInfo );
+
+        static CSensrvDataHandler* NewLC( RSensrvClient& aSensrvClient, const TSensrvChannelInfo& aChannelInfo );
+
+        virtual ~CSensrvDataHandler();
+
+
+    public:
+        /**
+        * Start data listening. Send request to server.
+        *
+        * @since S60 5.0
+        * @param aDataListener Data listener for channel.
+        * @param aListeningParameters Listening parameters
+        * @pararm aMaxBufferSize Maximum allowed buffer size
+        */
+        void StartListeningL( MSensrvDataHandlerObserver* aDataListener,
+                             TSensrvStartListeningParameters aListeningParameters,
+                             TInt aMaxBufferSize );
+
+        /**
+        * Get next data item.
+        *
+        * @since S60 5.0
+        * @param aDataPtr Reference to pointer data to be written
+        * @return TInt KErrNotFound if data buffer is empty.
+        */
+        TInt GetData( TDes8& aDataPtr );
+
+
+    protected: // From CActive
+
+          void DoCancel();
+          void RunL();
+          TInt RunError(TInt aError);
+
+
+    private:
+
+        CSensrvDataHandler( RSensrvClient& aSensrvClient,  const TSensrvChannelInfo& aChannelInfo  );
+
+        void ConstructL();
+
+        /**
+        * Create and send request to server
+        */
+        void CreateAndSendRequest();
+
+
+    private: // data
+
+        /**
+        * Client
+        */
+        RSensrvClient& iSensrvClient;
+
+         /**
+         * Data listener
+         * Not own.
+         */
+        MSensrvDataHandlerObserver* iDataObserver;
+
+        /**
+         * Data listening parameters
+         */
+        TSensrvStartListeningParameters iListeningParameters;
+
+        /**
+         * Channel info
+         */
+        TSensrvChannelInfo iChannelInfo;
+
+        /**
+         *  Server write data to here
+         * Own
+         */
+        HBufC8* iWriteBuffer;
+
+        /**
+         * Pointer to iWriteBuffer data
+         * Own
+         */
+        TPtr8*  iWriteBufferPtr;
+
+        /**
+         * Client read data from here
+         * Own
+         */
+        HBufC8* iReadBuffer;
+
+        /**
+         * Read buffer count
+         */
+        TInt iReadBufferCount;
+
+        /**
+         * Counter for data getting
+         */
+        TInt iGetDataCount;
+
+        /**
+         * Data count package
+         */
+        TSensrvAsyncChannelDataCountsRetvalPckgBuf iDataCountsPckgBuf;
+
+        /**
+         * Error count
+         */
+        TInt iErrorCount;
+
+    };
+
+
+
+#endif // CSENSRVDATAHANDLER_H