diff -r 000000000000 -r a41df078684a userlibandfileserver/fileserver/shostmassstorage/server/protocol/include/tblocktransfer.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userlibandfileserver/fileserver/shostmassstorage/server/protocol/include/tblocktransfer.h	Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,77 @@
+// Copyright (c) 2008-2009 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:
+//
+
+/**
+ @file
+ @internalTechnology
+*/
+
+#ifndef TBLOCKTRANSFER_H
+#define TBLOCKTRANSFER_H
+
+class MBlockTransferProtocol;
+
+/**
+Split the byte stream on block boundaries and transfer using
+MBlockTransferProtocol interface in blocks
+*/
+class TBlockTransfer
+    {
+public:
+    TBlockTransfer();
+
+    void ReadL(MBlockTransferProtocol& aProtocol,
+               TPos aPosition,
+               TInt aLength,
+               TDes8& aBuf);
+
+    void WriteL(MBlockTransferProtocol& aProtocol,
+                TPos aPosition,
+                TInt aLength,
+                TDesC8& aBuf);
+
+    TUint32 BlockLength() const;
+    void SetCapacity(TUint32 aBlockLength, TLba aLastLba);
+
+private:
+    TPos GetHeadBlockOffset(TPos aPos);
+    TLba GetHeadBlockLbaL(TPos aPos);
+
+    TPos GetTailBlockOffset(TPos aPos, TInt aLen);
+    TLba GetTailBlockLbaL(TPos aPos, TInt aLen);
+
+private:
+    /** Block Length */
+    TInt64 iBlockLength;
+    /** Last Logical Block Address */
+    TLba iLastLba;
+    };
+
+
+/** Constructor */
+inline TBlockTransfer::TBlockTransfer()
+:   iBlockLength(0)
+    {
+    }
+
+
+/** return the Block Length */
+inline TUint32 TBlockTransfer::BlockLength() const
+    {
+    return iBlockLength;
+    }
+
+#endif // TBLOCKTRANSFER_H
+