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108 lines
2.7 KiB
108 lines
2.7 KiB
5 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//=============================================================================
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#if !defined( MSGBUFFER_H )
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#define MSGBUFFER_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "netadr.h"
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//-----------------------------------------------------------------------------
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// Purpose: Generic byte level message buffer with read/write support
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//-----------------------------------------------------------------------------
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class CMsgBuffer
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{
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public:
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enum
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{
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NET_MAXMESSAGE = 8192
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};
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// Buffers must be named
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CMsgBuffer( const char *buffername = "unnamed", void (*ef)( PRINTF_FORMAT_STRING const char *fmt, ... ) = 0 );
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virtual ~CMsgBuffer( void );
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// Reset the buffer for writing
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void Clear( void );
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// Get current # of bytes
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int GetCurSize( void );
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// Get max # of bytes
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int GetMaxSize( void );
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// Get pointer to raw data
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void *GetData( void );
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// Set/unset the allow overflow flag
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void SetOverflow( bool allowed );
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// Start reading from buffer
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void BeginReading( void );
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// Get current read byte
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int GetReadCount( void );
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// Push read count ( to peek at data )
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void Push( void );
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void Pop( void );
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// Writing functions
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void WriteByte(int c);
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void WriteShort(int c);
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void WriteLong(int c);
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void WriteFloat(float f);
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void WriteString(const char *s);
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void WriteBuf( int iSize, void *buf );
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// Reading functions
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int ReadByte( void );
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int ReadShort( void );
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int ReadLong( void );
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float ReadFloat( void );
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char *ReadString( void );
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int ReadBuf( int iSize, void *pbuf );
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// setting and storing time received
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void SetTime(float time);
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float GetTime();
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// net address received from
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void SetNetAddress(netadr_t &adr);
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netadr_t &GetNetAddress();
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private:
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// Ensures sufficient space to append an object of length
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void *GetSpace( int length );
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// Copy buffer in at current writing point
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void Write( const void *data, int length );
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private:
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// Name of buffer in case of debugging/errors
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const char *m_pszBufferName;
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// Optional error callback
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void ( *m_pfnErrorFunc )( PRINTF_FORMAT_STRING const char *fmt, ... );
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// Current read pointer
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int m_nReadCount;
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// Push/pop read state
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int m_nPushedCount;
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bool m_bPushed;
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// Did we hit the end of the read buffer?
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bool m_bBadRead;
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// Max size of buffer
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int m_nMaxSize;
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// Current bytes written
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int m_nCurSize;
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// if false, call m_pfnErrorFunc
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bool m_bAllowOverflow;
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// set to true when buffer hits end
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bool m_bOverFlowed;
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// Internal storage
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unsigned char m_rgData[ NET_MAXMESSAGE ];
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// time received
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float m_fRecvTime;
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// address received from
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netadr_t m_NetAddr;
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};
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#endif // !MSGBUFFER_H
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