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glibc/nptl/tst-tls2.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 <signal.h> | |
#include <semaphore.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <unistd.h> | |
#define N 10 | |
static pthread_t th[N]; | |
#define CB(n) \ | |
static void \ | |
cb##n (void) \ | |
{ \ | |
if (th[n] != pthread_self ()) \ | |
{ \ | |
write (STDOUT_FILENO, "wrong callback\n", 15); \ | |
_exit (1); \ | |
} \ | |
} | |
CB (0) | |
CB (1) | |
CB (2) | |
CB (3) | |
CB (4) | |
CB (5) | |
CB (6) | |
CB (7) | |
CB (8) | |
CB (9) | |
static void (*cbs[]) (void) = | |
{ | |
cb0, cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, cb9 | |
}; | |
static __thread void (*fp) (void) __attribute__ ((tls_model ("local-exec"))); | |
static sem_t s; | |
#define THE_SIG SIGUSR1 | |
static void | |
handler (int sig) | |
{ | |
if (sig != THE_SIG) | |
{ | |
write (STDOUT_FILENO, "wrong signal\n", 13); | |
_exit (1); | |
} | |
fp (); | |
if (sem_post (&s) != 0) | |
{ | |
write (STDOUT_FILENO, "sem_post failed\n", 16); | |
_exit (1); | |
} | |
} | |
static pthread_barrier_t b; | |
#define TOTAL_SIGS 1000 | |
static int nsigs; | |
static void * | |
tf (void *arg) | |
{ | |
fp = arg; | |
pthread_barrier_wait (&b); | |
pthread_barrier_wait (&b); | |
if (nsigs != TOTAL_SIGS) | |
{ | |
puts ("barrier_wait prematurely returns"); | |
exit (1); | |
} | |
return NULL; | |
} | |
int | |
do_test (void) | |
{ | |
if (pthread_barrier_init (&b, NULL, N + 1) != 0) | |
{ | |
puts ("barrier_init failed"); | |
exit (1); | |
} | |
if (sem_init (&s, 0, 0) != 0) | |
{ | |
puts ("sem_init failed"); | |
exit (1); | |
} | |
struct sigaction sa; | |
sa.sa_handler = handler; | |
sigemptyset (&sa.sa_mask); | |
sa.sa_flags = 0; | |
if (sigaction (THE_SIG, &sa, NULL) != 0) | |
{ | |
puts ("sigaction 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; | |
} | |
int i; | |
for (i = 0; i < N; ++i) | |
if (pthread_create (&th[i], &a, tf, cbs[i]) != 0) | |
{ | |
puts ("pthread_create failed"); | |
exit (1); | |
} | |
if (pthread_attr_destroy (&a) != 0) | |
{ | |
puts ("attr_destroy failed"); | |
exit (1); | |
} | |
pthread_barrier_wait (&b); | |
sigset_t ss; | |
sigemptyset (&ss); | |
sigaddset (&ss, THE_SIG); | |
if (pthread_sigmask (SIG_BLOCK, &ss, NULL) != 0) | |
{ | |
puts ("pthread_sigmask failed"); | |
exit (1); | |
} | |
/* Start sending signals. */ | |
for (i = 0; i < TOTAL_SIGS; ++i) | |
{ | |
if (kill (getpid (), THE_SIG) != 0) | |
{ | |
puts ("kill failed"); | |
exit (1); | |
} | |
if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0) | |
{ | |
puts ("sem_wait failed"); | |
exit (1); | |
} | |
++nsigs; | |
} | |
pthread_barrier_wait (&b); | |
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" |