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glibc/nptl/tst-mutex7.c
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/* Copyright (C) 2002-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. | |
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> | |
#include <time.h> | |
#ifndef TYPE | |
# define TYPE PTHREAD_MUTEX_DEFAULT | |
#endif | |
static pthread_mutex_t lock; | |
#define ROUNDS 1000 | |
#define N 100 | |
static void * | |
tf (void *arg) | |
{ | |
int nr = (long int) arg; | |
int cnt; | |
struct timespec ts = { .tv_sec = 0, .tv_nsec = 11000 }; | |
for (cnt = 0; cnt < ROUNDS; ++cnt) | |
{ | |
if (pthread_mutex_lock (&lock) != 0) | |
{ | |
printf ("thread %d: failed to get the lock\n", nr); | |
return (void *) 1l; | |
} | |
if (pthread_mutex_unlock (&lock) != 0) | |
{ | |
printf ("thread %d: failed to release the lock\n", nr); | |
return (void *) 1l; | |
} | |
nanosleep (&ts, NULL); | |
} | |
return NULL; | |
} | |
static int | |
do_test (void) | |
{ | |
pthread_mutexattr_t a; | |
if (pthread_mutexattr_init (&a) != 0) | |
{ | |
puts ("mutexattr_init failed"); | |
exit (1); | |
} | |
if (pthread_mutexattr_settype (&a, TYPE) != 0) | |
{ | |
puts ("mutexattr_settype failed"); | |
exit (1); | |
} | |
#ifdef ENABLE_PI | |
if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0) | |
{ | |
puts ("pthread_mutexattr_setprotocol failed"); | |
return 1; | |
} | |
#endif | |
int e = pthread_mutex_init (&lock, &a); | |
if (e != 0) | |
{ | |
#ifdef ENABLE_PI | |
if (e == ENOTSUP) | |
{ | |
puts ("PI mutexes unsupported"); | |
return 0; | |
} | |
#endif | |
puts ("mutex_init failed"); | |
return 1; | |
} | |
if (pthread_mutexattr_destroy (&a) != 0) | |
{ | |
puts ("mutexattr_destroy failed"); | |
return 1; | |
} | |
pthread_attr_t at; | |
pthread_t th[N]; | |
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_mutex_lock (&lock) != 0) | |
{ | |
puts ("locking in parent failed"); | |
return 1; | |
} | |
for (cnt = 0; cnt < N; ++cnt) | |
if (pthread_create (&th[cnt], &at, tf, (void *) (long int) cnt) != 0) | |
{ | |
printf ("creating thread %d failed\n", cnt); | |
return 1; | |
} | |
if (pthread_attr_destroy (&at) != 0) | |
{ | |
puts ("attr_destroy failed"); | |
return 1; | |
} | |
if (pthread_mutex_unlock (&lock) != 0) | |
{ | |
puts ("unlocking in parent failed"); | |
return 1; | |
} | |
for (cnt = 0; cnt < N; ++cnt) | |
if (pthread_join (th[cnt], NULL) != 0) | |
{ | |
printf ("joining thread %d failed\n", cnt); | |
return 1; | |
} | |
return 0; | |
} | |
#define TIMEOUT 60 | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |