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glibc/nptl/tst-barrier4.c
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/* This tests destruction of a barrier right after waiting on it. | |
Copyright (C) 2004-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Ulrich Drepper <drepper@redhat.com>, 2004. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 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 | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#include <errno.h> | |
#include <pthread.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
static pthread_barrier_t b1; | |
static pthread_barrier_t b2; | |
#define N 20 | |
static void * | |
tf (void *arg) | |
{ | |
int round = 0; | |
while (round++ < 30) | |
{ | |
if (pthread_barrier_wait (&b1) == PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
pthread_barrier_destroy (&b1); | |
if (pthread_barrier_init (&b1, NULL, N) != 0) | |
{ | |
puts ("tf: 1st barrier_init failed"); | |
exit (1); | |
} | |
} | |
if (pthread_barrier_wait (&b2) == PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
pthread_barrier_destroy (&b2); | |
if (pthread_barrier_init (&b2, NULL, N) != 0) | |
{ | |
puts ("tf: 2nd barrier_init failed"); | |
exit (1); | |
} | |
} | |
} | |
return NULL; | |
} | |
static int | |
do_test (void) | |
{ | |
pthread_attr_t at; | |
int cnt; | |
if (pthread_attr_init (&at) != 0) | |
{ | |
puts ("attr_init failed"); | |
return 1; | |
} | |
if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0) | |
{ | |
puts ("attr_setstacksize failed"); | |
return 1; | |
} | |
if (pthread_barrier_init (&b1, NULL, N) != 0) | |
{ | |
puts ("1st barrier_init failed"); | |
return 1; | |
} | |
if (pthread_barrier_init (&b2, NULL, N) != 0) | |
{ | |
puts ("2nd barrier_init failed"); | |
return 1; | |
} | |
pthread_t th[N - 1]; | |
for (cnt = 0; cnt < N - 1; ++cnt) | |
if (pthread_create (&th[cnt], &at, tf, NULL) != 0) | |
{ | |
puts ("pthread_create failed"); | |
return 1; | |
} | |
if (pthread_attr_destroy (&at) != 0) | |
{ | |
puts ("attr_destroy failed"); | |
return 1; | |
} | |
tf (NULL); | |
for (cnt = 0; cnt < N - 1; ++cnt) | |
if (pthread_join (th[cnt], NULL) != 0) | |
{ | |
puts ("pthread_join failed"); | |
return 1; | |
} | |
return 0; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |