mirror of
https://sourceware.org/git/glibc.git
synced 2025-07-29 11:41:21 +03:00
Update.
2000-06-20 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/syscalls.list: New file. 2000-06-20 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/machine-gmon.h: New file. * sysdeps/unix/sysv/linux/ia64/profil-counter.h: New file. 2000-06-20 David Mosberger-Tang <davidm@hpl.hp.com> * sysdeps/unix/sysv/linux/ia64/getpagesize.c: New file. 2000-06-20 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Fix typo.
This commit is contained in:
94
linuxthreads/Examples/ex9.c
Normal file
94
linuxthreads/Examples/ex9.c
Normal file
@ -0,0 +1,94 @@
|
||||
/* Tests for pthread_barrier_* functions.
|
||||
Copyright (C) 2000 Free Software Foundation, Inc.
|
||||
Contributed by Kaz Kylheku <kaz@ashi.footprints.net>, 2000.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public License as
|
||||
published by the Free Software Foundation; either version 2 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library 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
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public
|
||||
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#include <errno.h>
|
||||
#include <error.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <pthread.h>
|
||||
|
||||
#define NUM_THREADS 10
|
||||
#define NUM_ITERS 500
|
||||
|
||||
static void *thread (void *);
|
||||
static pthread_barrier_t barrier;
|
||||
|
||||
int
|
||||
main (void)
|
||||
{
|
||||
pthread_t th;
|
||||
int i;
|
||||
|
||||
if (pthread_barrier_init (&barrier, NULL, NUM_THREADS + 1) != 0)
|
||||
error (EXIT_FAILURE, 0, "cannot initialize barrier");
|
||||
|
||||
for (i = 0; i < NUM_THREADS; i++)
|
||||
{
|
||||
if (pthread_create (&th, NULL, thread, NULL) != 0)
|
||||
error (EXIT_FAILURE, 0, "cannot create thread");
|
||||
}
|
||||
|
||||
(void) thread (NULL);
|
||||
/* notreached */
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static void *
|
||||
thread (void *arg)
|
||||
{
|
||||
int i;
|
||||
pthread_t self = pthread_self ();
|
||||
static pthread_t last_serial_thread;
|
||||
static int linecount; /* protected by flockfile(stdout) */
|
||||
|
||||
for (i = 0; i < NUM_ITERS; i++)
|
||||
{
|
||||
switch (pthread_barrier_wait (&barrier))
|
||||
{
|
||||
case 0:
|
||||
flockfile (stdout);
|
||||
printf ("%04d: non-serial thread %lu\n", ++linecount,
|
||||
(unsigned long) self);
|
||||
funlockfile (stdout);
|
||||
break;
|
||||
case PTHREAD_BARRIER_SERIAL_THREAD:
|
||||
flockfile (stdout);
|
||||
printf ("%04d: serial thread %lu\n", ++linecount,
|
||||
(unsigned long) self);
|
||||
funlockfile (stdout);
|
||||
last_serial_thread = self;
|
||||
break;
|
||||
default:
|
||||
/* Huh? */
|
||||
error (EXIT_FAILURE, 0, "unexpected return value from barrier wait");
|
||||
}
|
||||
}
|
||||
|
||||
if (pthread_equal (self, last_serial_thread))
|
||||
{
|
||||
flockfile (stdout);
|
||||
printf ("%04d: last serial thread %lu terminating process\n",
|
||||
++linecount, (unsigned long) self);
|
||||
funlockfile (stdout);
|
||||
exit (0);
|
||||
}
|
||||
|
||||
pthread_exit(NULL);
|
||||
}
|
Reference in New Issue
Block a user