GEEKING

GameChat/ChatUserSerialization/ComStyle/ChatReadWriteBuffer.h

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+//// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
+//// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+//// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
+//// PARTICULAR PURPOSE.
+////
+//// Copyright (c) Microsoft Corporation. All rights reserved
+#pragma once
+#include "ChatUserSerializationCommon.h"
+
+#if TV_API
+
+namespace Microsoft {
+namespace Xbox {
+namespace GameChat {
+
+#define DEFAULT_CAPACITY    8192
+
+// Fixed capacity buffer with a read and a write pointer
+class ReadWriteBuffer 
+{
+public:
+                            ReadWriteBuffer( const unsigned int capa = DEFAULT_CAPACITY );
+                            ~ReadWriteBuffer();
+
+    HRESULT                 Cleanup();
+    HRESULT                 Length( unsigned int* pOut ) const;
+    HRESULT                 ReadFast( BYTE** ppOut, const unsigned int size );
+    HRESULT                 Write( const BYTE* const pData, const unsigned int size );
+
+private:
+    std::unique_ptr<BYTE[]> m_pData;
+    unsigned int            m_capacity;
+    bool                    m_isCreated;
+    BYTE*                   m_pR;
+    BYTE*                   m_pW;
+
+    bool                    IsAbleToRead( const unsigned int size ) const;
+    bool                    IsAbleToWrite( const unsigned int size ) const;
+};
+
+}}}
+
+#endif