--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browserutilities/favouritesengine/ClientServer/inc/FavouritesBuf.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,144 @@
+/*
+* Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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: 
+*      Declaration of class RFavouritesBuf.
+*      
+*
+*/
+
+
+#ifndef FAVOURITES_BUF_H
+#define FAVOURITES_BUF_H
+
+//  INCLUDES
+
+#include <e32base.h>
+#include <s32buf.h>
+#include <FavouritesHandle.h>
+
+// CONSTANTS
+
+/// Stream buffer size.
+LOCAL_D const TInt KFavouritesStreamBufSize = 512;
+
+// FORWARD DECLARATION
+
+class RFavouritesSession;
+
+// CLASS DECLARATION
+
+/**
+* Client side stream buffer data container.
+*/
+NONSHARABLE_CLASS(TFavouritesBuf)
+    {
+
+    public:     // Data
+
+        TInt iLen;                              ///< Data length.
+        TUint8 iData[KFavouritesStreamBufSize]; ///< Data buffer.
+
+    };
+
+/**
+* Client side stream buffer. Not seekable.
+*/
+NONSHARABLE_CLASS(RFavouritesBuf): public RFavouritesHandle, public TStreamBuf
+    {
+
+    public:     // Constructors and destructor
+
+        /**
+        * Open the object (initially empty).
+        * @param aSess Session to be used.
+        * @return Error code.
+        */
+        TInt Open( RFavouritesSession& aSess );
+
+        /**
+        * Open this object using other object.
+        * @param aHandle Handle used to open this object.
+        * @param aFunction Function.
+        * @param aArgs Arguments. Arg 3 used here.
+        * @return Error code.
+        */
+        TInt Open
+            ( RFavouritesHandle& aHandle, TInt aFunction, TIpcArgs& aArgs );
+
+        /**
+        * Close the object.
+        */
+        void Close();
+
+    private:    // from TStreamBuf
+
+        /**
+        * Re-fill the intermediate buffer and reset the start and end points
+        * of the read area.
+        * @param aMaxLength The maximum amount of data required.
+        * @return The amount of data available.
+        */
+        TInt UnderflowL( TInt aMaxLength );
+
+        /**
+        * Empty the intermediate buffer and resets the start and end points
+        * of the write area.
+        */
+        void OverflowL();
+
+        /**
+        * Synchronise the stream buffer with the stream. In effect, this
+        * ensures that buffered data is delivered to the stream.
+        * Write lag flushed.
+        * Read lag leaves with KErrNotSupported.
+        */
+        void DoSynchL();
+
+    private:    // New methods
+
+        /**
+        * Read data from server.
+        * @return The number of bytes read.
+        */
+        TInt IpcReadL();
+
+        /**
+        * Write data to server.
+        */
+        void IpcWriteL();
+
+        /**
+        * Get read lag (number of bytes transferred from server side but not
+        * yet read).
+        * @return Read lag.
+        */
+        inline TInt Lag( TRead aArea ) const;
+
+        /**
+        * Get write lag (number of bytes written but not yet transferred to
+        * server side).
+        * @return Write lag.
+        */
+        inline TInt Lag( TWrite aArea ) const;
+
+    private:    // Data
+
+       TFavouritesBuf iBuf; ///< Data buffer.
+    };
+
+#include "FavouritesBuf.inl"
+
+#endif
+            
+// End of File