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glibc/nptl/tst-mutex5.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 <time.h> | |
#include <unistd.h> | |
#include <sys/time.h> | |
#include <stdint.h> | |
#include <config.h> | |
#ifndef TYPE | |
# define TYPE PTHREAD_MUTEX_NORMAL | |
#endif | |
static int | |
do_test (void) | |
{ | |
pthread_mutex_t m; | |
struct timespec ts; | |
struct timeval tv; | |
struct timeval tv2; | |
int err; | |
pthread_mutexattr_t a; | |
if (pthread_mutexattr_init (&a) != 0) | |
{ | |
puts ("mutexattr_init failed"); | |
return 1; | |
} | |
if (pthread_mutexattr_settype (&a, TYPE) != 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 | |
err = pthread_mutex_init (&m, &a); | |
if (err != 0) | |
{ | |
#ifdef ENABLE_PI | |
if (err == 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; | |
} | |
if (pthread_mutex_lock (&m) != 0) | |
{ | |
puts ("mutex_lock failed"); | |
return 1; | |
} | |
if (pthread_mutex_trylock (&m) == 0) | |
{ | |
puts ("mutex_trylock succeeded"); | |
return 1; | |
} | |
gettimeofday (&tv, NULL); | |
TIMEVAL_TO_TIMESPEC (&tv, &ts); | |
ts.tv_sec += 2; /* Wait 2 seconds. */ | |
err = pthread_mutex_timedlock (&m, &ts); | |
if (err == 0) | |
{ | |
puts ("timedlock succeeded"); | |
return 1; | |
} | |
else if (err != ETIMEDOUT) | |
{ | |
printf ("timedlock error != ETIMEDOUT: %d\n", err); | |
return 1; | |
} | |
else | |
{ | |
int clk_tck = sysconf (_SC_CLK_TCK); | |
gettimeofday (&tv2, NULL); | |
tv2.tv_sec -= tv.tv_sec; | |
tv2.tv_usec -= tv.tv_usec; | |
if (tv2.tv_usec < 0) | |
{ | |
tv2.tv_usec += 1000000; | |
tv2.tv_sec -= 1; | |
} | |
/* Be a bit tolerant, add one CLK_TCK. */ | |
tv2.tv_usec += 1000000 / clk_tck; | |
if (tv2.tv_usec >= 1000000) | |
{ | |
tv2.tv_usec -= 1000000; | |
++tv2.tv_sec; | |
} | |
if (tv2.tv_sec < 2) | |
{ | |
printf ("premature timeout: %jd.%06jd difference\n", | |
(intmax_t) tv2.tv_sec, (intmax_t) tv2.tv_usec); | |
return 1; | |
} | |
} | |
(void) gettimeofday (&tv, NULL); | |
TIMEVAL_TO_TIMESPEC (&tv, &ts); | |
ts.tv_sec += 2; /* Wait 2 seconds. */ | |
/* The following makes the ts value invalid. */ | |
ts.tv_nsec += 1000000000; | |
err = pthread_mutex_timedlock (&m, &ts); | |
if (err == 0) | |
{ | |
puts ("2nd timedlock succeeded"); | |
return 1; | |
} | |
else if (err != EINVAL) | |
{ | |
printf ("2nd timedlock error != EINVAL: %d\n", err); | |
return 1; | |
} | |
if (pthread_mutex_unlock (&m) != 0) | |
{ | |
puts ("mutex_unlock failed"); | |
return 1; | |
} | |
(void) gettimeofday (&tv, NULL); | |
TIMEVAL_TO_TIMESPEC (&tv, &ts); | |
ts.tv_sec += 2; /* Wait 2 seconds. */ | |
if (pthread_mutex_timedlock (&m, &ts) != 0) | |
{ | |
puts ("3rd timedlock failed"); | |
} | |
(void) gettimeofday (&tv2, NULL); | |
/* Check that timedlock didn't delay. We use a limit of 0.1 secs. */ | |
timersub (&tv2, &tv, &tv2); | |
if (tv2.tv_sec > 0 || tv2.tv_usec > 100000) | |
{ | |
puts ("3rd timedlock didn't return right away"); | |
return 1; | |
} | |
if (pthread_mutex_unlock (&m) != 0) | |
{ | |
puts ("final mutex_unlock failed"); | |
return 1; | |
} | |
if (pthread_mutex_destroy (&m) != 0) | |
{ | |
puts ("mutex_destroy failed"); | |
return 1; | |
} | |
return 0; | |
} | |
#define TIMEOUT 4 | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |