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diff --git a/lib/libUPnP/Neptune/Source/Core/NptRingBuffer.h b/lib/libUPnP/Neptune/Source/Core/NptRingBuffer.h
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+++ b/lib/libUPnP/Neptune/Source/Core/NptRingBuffer.h
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+/*****************************************************************
+|
+|   Neptune - Ring Buffer
+|
+| Copyright (c) 2002-2008, Axiomatic Systems, LLC.
+| All rights reserved.
+|
+| Redistribution and use in source and binary forms, with or without
+| modification, are permitted provided that the following conditions are met:
+|     * Redistributions of source code must retain the above copyright
+|       notice, this list of conditions and the following disclaimer.
+|     * Redistributions in binary form must reproduce the above copyright
+|       notice, this list of conditions and the following disclaimer in the
+|       documentation and/or other materials provided with the distribution.
+|     * Neither the name of Axiomatic Systems nor the
+|       names of its contributors may be used to endorse or promote products
+|       derived from this software without specific prior written permission.
+|
+| THIS SOFTWARE IS PROVIDED BY AXIOMATIC SYSTEMS ''AS IS'' AND ANY
+| EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+| DISCLAIMED. IN NO EVENT SHALL AXIOMATIC SYSTEMS BE LIABLE FOR ANY
+| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+|
+ ****************************************************************/
+
+#ifndef _NPT_RING_BUFFER_H_
+#define _NPT_RING_BUFFER_H_
+
+/*----------------------------------------------------------------------
+|   includes
++---------------------------------------------------------------------*/
+#include "NptTypes.h"
+#include "NptReferences.h"
+
+/*----------------------------------------------------------------------
+|   NPT_RingBuffer
++---------------------------------------------------------------------*/
+class NPT_RingBuffer
+{
+ public:
+    // methods
+                  NPT_RingBuffer(NPT_Size size);
+                  NPT_RingBuffer(void* buffer, NPT_Size size);
+    virtual      ~NPT_RingBuffer();
+    NPT_Size      GetSpace() const;
+    NPT_Size      GetContiguousSpace() const;
+    NPT_Result    Write(const void* buffer, NPT_Size byte_count);
+    NPT_Size      GetAvailable() const;
+    NPT_Size      GetContiguousAvailable() const;
+    NPT_Result    Read(void* buffer, NPT_Size byte_count);
+    unsigned char ReadByte();
+    unsigned char PeekByte(NPT_Position offset);
+    NPT_Result    MoveIn(NPT_Position offset);
+    NPT_Result    MoveOut(NPT_Position offset);
+    NPT_Result    Flush();
+    NPT_Result    Close();
+    bool          IsClosed() { return m_Closed; }
+
+    // accessors
+    unsigned char* GetWritePointer()  { return m_In; }
+    unsigned char* GetReadPointer()   { return m_Out;}
+
+ private:
+    // members
+    struct {
+        unsigned char* start;
+        unsigned char* end;
+    }              m_Data;
+    unsigned char* m_In;
+    unsigned char* m_Out;
+    bool           m_BufferIsLocal;
+    bool           m_Closed;
+};
+
+typedef NPT_Reference<NPT_RingBuffer> NPT_RingBufferReference;
+
+#endif // _NPT_RING_BUFFER_H_