--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/perfsrv/memspy/Driver/Kernel/Include/MemSpyDriverXferBuffer.h	Mon Sep 06 15:00:47 2010 +0300
@@ -0,0 +1,58 @@
+/*
+* Copyright (c) 2009 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:
+*
+*/
+
+#ifndef MEMSPYDRIVERXFERBUFFER_H
+#define MEMSPYDRIVERXFERBUFFER_H
+
+// System includes
+#include <e32cmn.h>
+#include <kernel.h>
+
+// Classes referenced
+class DMemSpyDriverDevice;
+
+
+class DMemSpyDriverXferBuffer : public DBase
+	{
+    friend class RMemSpyMemStreamWriter;
+
+public:
+	DMemSpyDriverXferBuffer( DMemSpyDriverDevice& aDevice, DThread& aThread );
+	~DMemSpyDriverXferBuffer();
+    TInt Construct( TInt aSize );
+
+public: // API
+    TInt Size() const;
+    TInt GrowBy( TInt aSize );
+    TInt EnsureCapacity( TInt aSize );
+    void Reset();
+
+private: // Internal methods
+    TInt WriteToClient( TDes8* aDestinationPointer, TInt aLength );
+    DThread& ClientThread();
+    TUint8* Ptr();
+
+private: // Data members
+    DMemSpyDriverDevice& iDevice;
+	DThread& iClientThread;
+    TInt iSize;
+    TAny* iBuffer;
+	};
+
+
+
+#endif