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glibc/nptl/tst-mutex2.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> | |
static pthread_mutex_t m; | |
static pthread_barrier_t b; | |
static void * | |
tf (void *arg) | |
{ | |
int e = pthread_mutex_unlock (&m); | |
if (e == 0) | |
{ | |
puts ("child: 1st mutex_unlock succeeded"); | |
exit (1); | |
} | |
else if (e != EPERM) | |
{ | |
puts ("child: 1st mutex_unlock error != EPERM"); | |
exit (1); | |
} | |
e = pthread_mutex_trylock (&m); | |
if (e == 0) | |
{ | |
puts ("child: 1st trylock suceeded"); | |
exit (1); | |
} | |
if (e != EBUSY) | |
{ | |
puts ("child: 1st trylock didn't return EBUSY"); | |
exit (1); | |
} | |
e = pthread_barrier_wait (&b); | |
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("child: 1st barrier_wait failed"); | |
exit (1); | |
} | |
e = pthread_barrier_wait (&b); | |
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("child: 2nd barrier_wait failed"); | |
exit (1); | |
} | |
e = pthread_mutex_unlock (&m); | |
if (e == 0) | |
{ | |
puts ("child: 2nd mutex_unlock succeeded"); | |
exit (1); | |
} | |
else if (e != EPERM) | |
{ | |
puts ("child: 2nd mutex_unlock error != EPERM"); | |
exit (1); | |
} | |
if (pthread_mutex_trylock (&m) != 0) | |
{ | |
puts ("child: 2nd trylock failed"); | |
exit (1); | |
} | |
if (pthread_mutex_unlock (&m) != 0) | |
{ | |
puts ("child: 3rd mutex_unlock failed"); | |
exit (1); | |
} | |
return NULL; | |
} | |
static int | |
do_test (void) | |
{ | |
pthread_mutexattr_t a; | |
int e; | |
if (pthread_mutexattr_init (&a) != 0) | |
{ | |
puts ("mutexattr_init failed"); | |
return 1; | |
} | |
if (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_ERRORCHECK) != 0) | |
{ | |
puts ("mutexattr_settype failed"); | |
return 1; | |
} | |
#ifdef ENABLE_PI | |
if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0) | |
{ | |
puts ("pthread_mutexattr_setprotocol failed"); | |
return 1; | |
} | |
#endif | |
e = pthread_mutex_init (&m, &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_barrier_init (&b, NULL, 2) != 0) | |
{ | |
puts ("barrier_init failed"); | |
return 1; | |
} | |
e = pthread_mutex_unlock (&m); | |
if (e == 0) | |
{ | |
puts ("1st mutex_unlock succeeded"); | |
return 1; | |
} | |
else if (e != EPERM) | |
{ | |
puts ("1st mutex_unlock error != EPERM"); | |
return 1; | |
} | |
if (pthread_mutex_lock (&m) != 0) | |
{ | |
puts ("mutex_lock failed"); | |
return 1; | |
} | |
e = pthread_mutex_lock (&m); | |
if (e == 0) | |
{ | |
puts ("2nd mutex_lock succeeded"); | |
return 1; | |
} | |
else if (e != EDEADLK) | |
{ | |
puts ("2nd mutex_lock error != EDEADLK"); | |
return 1; | |
} | |
pthread_t th; | |
if (pthread_create (&th, NULL, tf, NULL) != 0) | |
{ | |
puts ("create failed"); | |
return 1; | |
} | |
e = pthread_barrier_wait (&b); | |
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("1st barrier_wait failed"); | |
return 1; | |
} | |
if (pthread_mutex_unlock (&m) != 0) | |
{ | |
puts ("2nd mutex_unlock failed"); | |
return 1; | |
} | |
e = pthread_mutex_unlock (&m); | |
if (e == 0) | |
{ | |
puts ("3rd mutex_unlock succeeded"); | |
return 1; | |
} | |
else if (e != EPERM) | |
{ | |
puts ("3rd mutex_unlock error != EPERM"); | |
return 1; | |
} | |
e = pthread_barrier_wait (&b); | |
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) | |
{ | |
puts ("2nd barrier_wait failed"); | |
return 1; | |
} | |
if (pthread_join (th, NULL) != 0) | |
{ | |
puts ("join failed"); | |
return 1; | |
} | |
if (pthread_mutex_destroy (&m) != 0) | |
{ | |
puts ("mutex_destroy failed"); | |
return 1; | |
} | |
if (pthread_barrier_destroy (&b) != 0) | |
{ | |
puts ("barrier_destroy failed"); | |
return 1; | |
} | |
if (pthread_mutexattr_destroy (&a) != 0) | |
{ | |
puts ("mutexattr_destroy failed"); | |
return 1; | |
} | |
return 0; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |