--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/userlibandfileserver/fileserver/smassstorage/inc/tbulkmm.h	Mon Oct 11 17:54:41 2010 +0100
@@ -0,0 +1,103 @@
+/*
+* Copyright (c) 2004-2010 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: 
+* Class declaration for CBulkOnlyTransportUsbcLdd.
+*
+*/
+
+
+/** 
+ @file
+ @internalTechnology
+*/
+
+#ifndef TBULKMM_H
+#define TBULKMM_H
+
+// Maximum size for SCSI Read10 Write10 and Verify10 commands
+// Windows requests size of 64K whereas MAC requests size of 128K
+static const TUint32 KMaxBufSize = 128 * 1024;
+
+#ifdef MSDC_MULTITHREADED
+class TBulkMm
+{
+public:
+    TBulkMm();
+    void GetNextTransferBuffer(TUint aLength, TPtr8& aPtr);
+    void GetNextTransferBuffer(TPtr8& aPtr);
+
+    TUint MaxTransferSize() const {return KMaxBufSize;}
+    
+    TUint8* Buf1();
+    TUint8* Buf2();
+
+private:
+	TBuf8<KMaxBufSize> iDataBuf1;	// For data transfers (Reading and Writing)
+	TBuf8<KMaxBufSize> iDataBuf2;
+
+	TBool iSwap;
+};
+
+#else
+
+class TBulkMm
+{
+public:
+    TBulkMm() {};
+
+    void GetNextTransferBuffer(TUint aLength, TPtr8& aPtr);
+    void GetNextTransferBuffer(TPtr8& aPtr);
+
+    TUint MaxTransferSize() const {return KMaxBufSize;}
+
+private:
+	TBuf8<KMaxBufSize> iDataBuf;
+};
+
+#endif
+
+#ifdef MSDC_MULTITHREADED
+inline TUint8* TBulkMm::Buf1()
+{
+    return const_cast<TUint8*>(iDataBuf1.Ptr());
+}
+
+
+inline TUint8* TBulkMm::Buf2()
+{
+    return const_cast<TUint8*>(iDataBuf2.Ptr());
+}
+
+
+inline void TBulkMm::GetNextTransferBuffer(TPtr8& aPtr)
+	{
+    GetNextTransferBuffer(KMaxBufSize, aPtr);
+	}
+
+#else
+inline void TBulkMm::GetNextTransferBuffer(TUint aLength, TPtr8& aPtr)
+	{
+    iDataBuf.SetLength(aLength);
+    aPtr.Set(iDataBuf.LeftTPtr(iDataBuf.Length()));
+	}
+
+
+inline void TBulkMm::GetNextTransferBuffer(TPtr8& aPtr)
+	{
+    GetNextTransferBuffer(KMaxBufSize, aPtr);
+	}
+#endif
+
+#endif
+