quakeforge/tools/qflight/source/threads.c
Bill Currie 761a7546dd re-arrange things so __attribute__ and __builtin_expect are properly
autoconfiscated so rcsid will continue to work with gcc 3.3
2003-01-15 15:31:36 +00:00

106 lines
2.5 KiB
C

/*
trace.c
(description)
Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 2002 Colin Thompson
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.
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.
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
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
static __attribute__ ((unused)) const char rcsid[] =
"$Id$";
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_IO_H
# include <io.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <stdlib.h>
#include "QF/qtypes.h"
#include "QF/qendian.h"
#include "options.h"
#include "threads.h"
#ifdef HAVE_PTHREAD_H
pthread_mutex_t *my_mutex;
#endif
void
InitThreads (void)
{
#ifdef HAVE_PTHREAD_H
if (options.threads > 1) {
pthread_mutexattr_t mattrib;
my_mutex = malloc (sizeof (*my_mutex));
if (pthread_mutexattr_init (&mattrib) == -1)
fprintf (stderr, "pthread_mutex_attr_init failed");
// if (pthread_mutexattr_setkind_np (&mattrib, MUTEX_FAST_NP) == -1)
// fprintf (stderr, "pthread_mutexattr_setkind_np failed");
if (pthread_mutex_init (my_mutex, &mattrib) == -1)
fprintf (stderr, "pthread_mutex_init failed");
}
#endif
}
void
RunThreadsOn (threadfunc_t *func)
{
#ifdef HAVE_PTHREAD_H
if (options.threads > 1) {
pthread_t work_threads[256];
void *status;
pthread_attr_t attrib;
long i;
if (pthread_attr_init (&attrib) == -1)
fprintf (stderr, "pthread_attr_init failed");
if (pthread_attr_setstacksize (&attrib, 0x100000) == -1)
fprintf (stderr, "pthread_attr_setstacksize failed");
for (i = 0; i < options.threads; i++) {
if (pthread_create (&work_threads[i], &attrib, func,
(void *) i) == -1)
fprintf (stderr, "pthread_create failed");
}
for (i = 0; i < options.threads; i++) {
if (pthread_join (work_threads[i], &status) == -1)
fprintf (stderr, "pthread_join failed");
}
return;
}
#endif
func (NULL);
}