159 lines
4.2 KiB
C
159 lines
4.2 KiB
C
|
/* Copyright (C) 2003-2022 Free Software Foundation, Inc.
|
||
|
|
This file is part of the GNU C Library.
|
||
|
|
|
||
|
|
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
|
||
|
|
<https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#include <errno.h>
|
||
|
|
#include <pthread.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <sys/mman.h>
|
||
|
|
#include <sys/time.h>
|
||
|
|
#include <sys/wait.h>
|
||
|
|
#include <support/check.h>
|
||
|
|
#include <support/timespec.h>
|
||
|
|
#include <support/xunistd.h>
|
||
|
|
#include <support/xthread.h>
|
||
|
|
|
||
|
|
#ifdef ENABLE_PP
|
||
|
|
#include "tst-tpp.h"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* A bogus clock value that tells run_test to use pthread_mutex_timedlock
|
||
|
|
rather than pthread_mutex_clocklock. */
|
||
|
|
#define CLOCK_USE_TIMEDLOCK (-1)
|
||
|
|
|
||
|
|
static void
|
||
|
|
do_test_clock (clockid_t clockid, int tmo_result)
|
||
|
|
{
|
||
|
|
const clockid_t clockid_for_get =
|
||
|
|
(clockid == CLOCK_USE_TIMEDLOCK) ? CLOCK_REALTIME : clockid;
|
||
|
|
size_t ps = sysconf (_SC_PAGESIZE);
|
||
|
|
char tmpfname[] = "/tmp/tst-mutex9.XXXXXX";
|
||
|
|
char data[ps];
|
||
|
|
void *mem;
|
||
|
|
int fd;
|
||
|
|
pthread_mutex_t *m;
|
||
|
|
pthread_mutexattr_t a;
|
||
|
|
pid_t pid;
|
||
|
|
|
||
|
|
fd = mkstemp (tmpfname);
|
||
|
|
if (fd == -1)
|
||
|
|
FAIL_EXIT1 ("cannot open temporary file: %m\n");
|
||
|
|
|
||
|
|
/* Make sure it is always removed. */
|
||
|
|
unlink (tmpfname);
|
||
|
|
|
||
|
|
/* Create one page of data. */
|
||
|
|
memset (data, '\0', ps);
|
||
|
|
|
||
|
|
/* Write the data to the file. */
|
||
|
|
xwrite (fd, data, ps);
|
||
|
|
|
||
|
|
mem = xmmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd);
|
||
|
|
|
||
|
|
m = (pthread_mutex_t *) (((uintptr_t) mem + __alignof (pthread_mutex_t))
|
||
|
|
& ~(__alignof (pthread_mutex_t) - 1));
|
||
|
|
|
||
|
|
TEST_COMPARE (pthread_mutexattr_init (&a), 0);
|
||
|
|
|
||
|
|
TEST_COMPARE (pthread_mutexattr_setpshared (&a, PTHREAD_PROCESS_SHARED), 0);
|
||
|
|
|
||
|
|
TEST_COMPARE (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_RECURSIVE), 0);
|
||
|
|
|
||
|
|
#if defined ENABLE_PI
|
||
|
|
TEST_COMPARE (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT), 0);
|
||
|
|
#elif defined ENABLE_PP
|
||
|
|
TEST_COMPARE (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_PROTECT), 0);
|
||
|
|
TEST_COMPARE (pthread_mutexattr_setprioceiling (&a, 6), 0);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int e;
|
||
|
|
if ((e = pthread_mutex_init (m, &a)) != 0)
|
||
|
|
{
|
||
|
|
#ifdef ENABLE_PI
|
||
|
|
if (e == ENOTSUP)
|
||
|
|
FAIL_UNSUPPORTED ("PI mutexes unsupported");
|
||
|
|
#endif
|
||
|
|
FAIL_EXIT1 ("mutex_init failed");
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST_COMPARE (pthread_mutex_lock (m), 0);
|
||
|
|
|
||
|
|
TEST_COMPARE (pthread_mutexattr_destroy (&a), 0);
|
||
|
|
|
||
|
|
puts ("going to fork now");
|
||
|
|
pid = xfork ();
|
||
|
|
if (pid == 0)
|
||
|
|
{
|
||
|
|
if (pthread_mutex_trylock (m) == 0)
|
||
|
|
FAIL_EXIT1 ("child: mutex_trylock succeeded");
|
||
|
|
|
||
|
|
if (pthread_mutex_unlock (m) == 0)
|
||
|
|
FAIL_EXIT1 ("child: mutex_unlock succeeded");
|
||
|
|
|
||
|
|
const struct timespec ts = timespec_add (xclock_now (clockid_for_get),
|
||
|
|
make_timespec (0, 500000000));
|
||
|
|
|
||
|
|
if (clockid == CLOCK_USE_TIMEDLOCK)
|
||
|
|
TEST_COMPARE (pthread_mutex_timedlock (m, &ts), tmo_result);
|
||
|
|
else
|
||
|
|
TEST_COMPARE (pthread_mutex_clocklock (m, clockid, &ts), tmo_result);
|
||
|
|
|
||
|
|
alarm (1);
|
||
|
|
|
||
|
|
pthread_mutex_lock (m);
|
||
|
|
|
||
|
|
puts ("child: mutex_lock returned");
|
||
|
|
|
||
|
|
exit (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
sleep (2);
|
||
|
|
|
||
|
|
int status;
|
||
|
|
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
|
||
|
|
FAIL_EXIT1 ("waitpid failed");
|
||
|
|
if (! WIFSIGNALED (status))
|
||
|
|
FAIL_EXIT1 ("child not killed by signal");
|
||
|
|
TEST_COMPARE (WTERMSIG (status), SIGALRM);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
do_test (void)
|
||
|
|
{
|
||
|
|
#ifdef ENABLE_PP
|
||
|
|
init_tpp_test ();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int monotonic_result =
|
||
|
|
#ifdef ENABLE_PI
|
||
|
|
support_mutex_pi_monotonic () ? ETIMEDOUT : EINVAL;
|
||
|
|
#else
|
||
|
|
ETIMEDOUT;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
do_test_clock (CLOCK_USE_TIMEDLOCK, ETIMEDOUT);
|
||
|
|
do_test_clock (CLOCK_REALTIME, ETIMEDOUT);
|
||
|
|
do_test_clock (CLOCK_MONOTONIC, monotonic_result);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#include <support/test-driver.c>
|