130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
/*
|
|
===========================================================================
|
|
Copyright (C) 1999-2005 Id Software, Inc.
|
|
|
|
This file is part of Quake III Arena source code.
|
|
|
|
Quake III Arena source code is free software; you can redistribute it
|
|
and/or modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2 of the License,
|
|
or (at your option) any later version.
|
|
|
|
Quake III Arena source code is distributed in the hope that it will be
|
|
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Quake III Arena source code; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
===========================================================================
|
|
*/
|
|
|
|
#include "../qcommon/q_shared.h"
|
|
#include "../qcommon/qcommon.h"
|
|
#include "sys_local.h"
|
|
|
|
#define MAX_LOG 32768
|
|
|
|
static char consoleLog[ MAX_LOG ];
|
|
static unsigned int writePos = 0;
|
|
static unsigned int readPos = 0;
|
|
|
|
/*
|
|
==================
|
|
CON_LogSize
|
|
==================
|
|
*/
|
|
unsigned int CON_LogSize( void )
|
|
{
|
|
if( readPos <= writePos )
|
|
return writePos - readPos;
|
|
else
|
|
return writePos + MAX_LOG - readPos;
|
|
}
|
|
|
|
/*
|
|
==================
|
|
CON_LogFree
|
|
==================
|
|
*/
|
|
static unsigned int CON_LogFree( void )
|
|
{
|
|
return MAX_LOG - CON_LogSize( ) - 1;
|
|
}
|
|
|
|
/*
|
|
==================
|
|
CON_LogWrite
|
|
==================
|
|
*/
|
|
unsigned int CON_LogWrite( const char *in )
|
|
{
|
|
unsigned int length = strlen( in );
|
|
unsigned int firstChunk;
|
|
unsigned int secondChunk;
|
|
|
|
while( CON_LogFree( ) < length && CON_LogSize( ) > 0 )
|
|
{
|
|
// Free enough space
|
|
while( consoleLog[ readPos ] != '\n' && CON_LogSize( ) > 1 )
|
|
readPos = ( readPos + 1 ) % MAX_LOG;
|
|
|
|
// Skip past the '\n'
|
|
readPos = ( readPos + 1 ) % MAX_LOG;
|
|
}
|
|
|
|
if( CON_LogFree( ) < length )
|
|
return 0;
|
|
|
|
if( writePos + length > MAX_LOG )
|
|
{
|
|
firstChunk = MAX_LOG - writePos;
|
|
secondChunk = length - firstChunk;
|
|
}
|
|
else
|
|
{
|
|
firstChunk = length;
|
|
secondChunk = 0;
|
|
}
|
|
|
|
Com_Memcpy( consoleLog + writePos, in, firstChunk );
|
|
Com_Memcpy( consoleLog, in + firstChunk, secondChunk );
|
|
|
|
writePos = ( writePos + length ) % MAX_LOG;
|
|
|
|
return length;
|
|
}
|
|
|
|
/*
|
|
==================
|
|
CON_LogRead
|
|
==================
|
|
*/
|
|
unsigned int CON_LogRead( char *out, unsigned int outSize )
|
|
{
|
|
unsigned int firstChunk;
|
|
unsigned int secondChunk;
|
|
|
|
if( CON_LogSize( ) < outSize )
|
|
outSize = CON_LogSize( );
|
|
|
|
if( readPos + outSize > MAX_LOG )
|
|
{
|
|
firstChunk = MAX_LOG - readPos;
|
|
secondChunk = outSize - firstChunk;
|
|
}
|
|
else
|
|
{
|
|
firstChunk = outSize;
|
|
secondChunk = 0;
|
|
}
|
|
|
|
Com_Memcpy( out, consoleLog + readPos, firstChunk );
|
|
Com_Memcpy( out + firstChunk, out, secondChunk );
|
|
|
|
readPos = ( readPos + outSize ) % MAX_LOG;
|
|
|
|
return outSize;
|
|
}
|