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glibc/nptl/tst-kill6.c
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/* Copyright (C) 2003-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. | |
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 <semaphore.h> | |
#include <signal.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <unistd.h> | |
static pthread_t receiver; | |
static sem_t sem; | |
static pthread_barrier_t b; | |
static void | |
handler (int sig) | |
{ | |
if (sig != SIGUSR1) | |
{ | |
write (STDOUT_FILENO, "wrong signal\n", 13); | |
_exit (1); | |
} | |
if (pthread_self () != receiver) | |
{ | |
write (STDOUT_FILENO, "not the intended receiver\n", 26); | |
_exit (1); | |
} | |
if (sem_post (&sem) != 0) | |
{ | |
write (STDOUT_FILENO, "sem_post failed\n", 16); | |
_exit (1); | |
} | |
} | |
static void * | |
tf (void *a) | |
{ | |
int e = pthread_barrier_wait (&b); | |
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("child: barrier_wait failed"); | |
exit (1); | |
} | |
return NULL; | |
} | |
int | |
do_test (void) | |
{ | |
struct sigaction sa; | |
sigemptyset (&sa.sa_mask); | |
sa.sa_flags = 0; | |
sa.sa_handler = handler; | |
if (sigaction (SIGUSR1, &sa, NULL) != 0) | |
{ | |
puts ("sigaction failed"); | |
exit (1); | |
} | |
#define N 20 | |
if (pthread_barrier_init (&b, NULL, N + 1) != 0) | |
{ | |
puts ("barrier_init failed"); | |
exit (1); | |
} | |
pthread_attr_t a; | |
if (pthread_attr_init (&a) != 0) | |
{ | |
puts ("attr_init failed"); | |
exit (1); | |
} | |
if (pthread_attr_setstacksize (&a, 1 * 1024 * 1024) != 0) | |
{ | |
puts ("attr_setstacksize failed"); | |
return 1; | |
} | |
pthread_t th[N]; | |
int i; | |
for (i = 0; i < N; ++i) | |
if (pthread_create (&th[i], &a, tf, NULL) != 0) | |
{ | |
puts ("create failed"); | |
exit (1); | |
} | |
if (pthread_attr_destroy (&a) != 0) | |
{ | |
puts ("attr_destroy failed"); | |
exit (1); | |
} | |
if (sem_init (&sem, 0, 0) != 0) | |
{ | |
puts ("sem_init failed"); | |
exit (1); | |
} | |
for (i = 0; i < N * 10; ++i) | |
{ | |
receiver = th[i % N]; | |
if (pthread_kill (receiver, SIGUSR1) != 0) | |
{ | |
puts ("kill failed"); | |
exit (1); | |
} | |
if (TEMP_FAILURE_RETRY (sem_wait (&sem)) != 0) | |
{ | |
puts ("sem_wait failed"); | |
exit (1); | |
} | |
} | |
int e = pthread_barrier_wait (&b); | |
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("barrier_wait failed"); | |
exit (1); | |
} | |
for (i = 0; i < N; ++i) | |
if (pthread_join (th[i], NULL) != 0) | |
{ | |
puts ("join failed"); | |
exit (1); | |
} | |
return 0; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |