First version of the SOurce SDK 2013

public/tier2/utlstreambuffer.h

@@ -0,0 +1,71 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+// Serialization/unserialization buffer
+//=============================================================================//
+
+#ifndef UTLSTREAMBUFFER_H
+#define UTLSTREAMBUFFER_H
+
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "tier1/utlbuffer.h"
+#include "filesystem.h"
+
+
+//-----------------------------------------------------------------------------
+// Command parsing..
+//-----------------------------------------------------------------------------
+class CUtlStreamBuffer : public CUtlBuffer
+{
+	typedef CUtlBuffer BaseClass;
+
+public:
+	// See CUtlBuffer::BufferFlags_t for flags
+	CUtlStreamBuffer( );
+	CUtlStreamBuffer( const char *pFileName, const char *pPath, int nFlags = 0, bool bDelayOpen = false );
+	~CUtlStreamBuffer();
+
+	// Open the file. normally done in constructor
+	void Open( const char *pFileName, const char *pPath, int nFlags );
+
+	// close the file. normally done in destructor
+	void Close();
+
+	// Is the file open?
+	bool IsOpen() const;
+
+private:
+	// error flags
+	enum
+	{
+		FILE_OPEN_ERROR = MAX_ERROR_FLAG << 1,
+		FILE_WRITE_ERROR = MAX_ERROR_FLAG << 2,
+	};
+
+	// Overflow functions
+	bool StreamPutOverflow( int nSize );
+	bool StreamGetOverflow( int nSize );
+
+	// Grow allocation size to fit requested size
+	void GrowAllocatedSize( int nSize );
+
+	// Reads bytes from the file; fixes up maxput if necessary and null terminates
+	int ReadBytesFromFile( int nBytesToRead, int nReadOffset );
+
+	FileHandle_t OpenFile( const char *pFileName, const char *pPath );
+
+	FileHandle_t m_hFileHandle;
+
+	char *m_pFileName;
+	char *m_pPath;
+};
+
+
+#endif // UTLSTREAMBUFFER_H
+