quakeforge-old/common/sys_null.c

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/*
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sys_null.h
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null system driver to aid porting efforts
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Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 1999,2000 contributors of the QuakeForge project
Please see the file "AUTHORS" for a list of contributors
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This program 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.
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This program 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.
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See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
$Id$
*/
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#include <quakedef.h>
#include <errno.h>
/*
File I/O
*/
#define MAX_HANDLES 64 // 1999-12-23 More PAK files support by Maddes
QFile *sys_handles[MAX_HANDLES];
int findhandle (void)
{
int i;
for (i=1 ; i<MAX_HANDLES ; i++)
if (!sys_handles[i])
return i;
Sys_Error ("out of handles");
return -1;
}
/*
================
filelength
================
*/
int filelength (QFile *f)
{
int pos;
int end;
pos = ftell (f);
fseek (f, 0, SEEK_END);
end = ftell (f);
fseek (f, pos, SEEK_SET);
return end;
}
int Sys_FileOpenRead (char *path, int *hndl)
{
QFile *f;
int i;
i = findhandle ();
f = fopen(path, "rb");
if (!f)
{
*hndl = -1;
return -1;
}
sys_handles[i] = f;
*hndl = i;
return filelength(f);
}
int Sys_FileOpenWrite (char *path)
{
QFile *f;
int i;
i = findhandle ();
f = fopen(path, "wb");
if (!f)
Sys_Error ("Error opening %s: %s", path,strerror(errno));
sys_handles[i] = f;
return i;
}
void Sys_FileClose (int handle)
{
fclose (sys_handles[handle]);
sys_handles[handle] = NULL;
}
void Sys_FileSeek (int handle, int position)
{
fseek (sys_handles[handle], position, SEEK_SET);
}
int Sys_FileRead (int handle, void *dest, int count)
{
return fread (dest, 1, count, sys_handles[handle]);
}
int Sys_FileWrite (int handle, void *data, int count)
{
return fwrite (data, 1, count, sys_handles[handle]);
}
/*
System I/O
*/
void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length)
{
}
void Sys_DebugLog(char *file, char *fmt, ...)
{
}
void Sys_Error (char *error, ...)
{
va_list argptr;
printf ("Sys_Error: ");
va_start (argptr,error);
vprintf (error,argptr);
va_end (argptr);
printf ("\n");
exit (1);
}
void Sys_Quit (void)
{
exit (0);
}
char *Sys_ConsoleInput (void)
{
return NULL;
}
void Sys_Sleep (void)
{
}
void Sys_SendKeyEvents (void)
{
}
void Sys_HighFPPrecision (void)
{
}
void Sys_LowFPPrecision (void)
{
}
//=============================================================================
void main (int argc, char **argv)
{
static quakeparms_t parms;
parms.memsize = 8*1024*1024;
parms.membase = malloc (parms.memsize);
parms.basedir = ".";
COM_InitArgv (argc, argv);
parms.argc = com_argc;
parms.argv = com_argv;
printf ("Host_Init\n");
Host_Init (&parms);
while (1)
{
Host_Frame (0.1);
}
}