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ce5b73a7c3
* nptl/eintr.c: Use libsupport. * nptl/tst-eintr1.c: Likewise. * nptl/tst-eintr2.c: Likewise. * nptl/tst-eintr3.c: Likewise. * nptl/tst-eintr4.c: Likewise. * nptl/tst-eintr5.c: Likewise. * nptl/tst-mutex-errorcheck.c: Likewise. * nptl/tst-mutex5.c: Likewise.
125 lines
3.3 KiB
C
125 lines
3.3 KiB
C
/* Copyright (C) 2003-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <pthread.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <support/check.h>
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#include <support/timespec.h>
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#include <support/xunistd.h>
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static int
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do_test (void)
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{
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size_t ps = sysconf (_SC_PAGESIZE);
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char tmpfname[] = "/tmp/tst-mutex9.XXXXXX";
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char data[ps];
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void *mem;
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int fd;
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pthread_mutex_t *m;
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pthread_mutexattr_t a;
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pid_t pid;
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fd = mkstemp (tmpfname);
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if (fd == -1)
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FAIL_EXIT1 ("cannot open temporary file: %m\n");
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/* Make sure it is always removed. */
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unlink (tmpfname);
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/* Create one page of data. */
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memset (data, '\0', ps);
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/* Write the data to the file. */
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xwrite (fd, data, ps);
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mem = xmmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd);
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m = (pthread_mutex_t *) (((uintptr_t) mem + __alignof (pthread_mutex_t))
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& ~(__alignof (pthread_mutex_t) - 1));
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TEST_COMPARE (pthread_mutexattr_init (&a), 0);
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TEST_COMPARE (pthread_mutexattr_setpshared (&a, PTHREAD_PROCESS_SHARED), 0);
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TEST_COMPARE (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_RECURSIVE), 0);
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#ifdef ENABLE_PI
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TEST_COMPARE (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT), 0);
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#endif
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int e;
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if ((e = pthread_mutex_init (m, &a)) != 0)
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{
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#ifdef ENABLE_PI
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if (e == ENOTSUP)
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FAIL_UNSUPPORTED ("PI mutexes unsupported");
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#endif
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FAIL_EXIT1 ("mutex_init failed");
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}
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TEST_COMPARE (pthread_mutex_lock (m), 0);
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TEST_COMPARE (pthread_mutexattr_destroy (&a), 0);
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puts ("going to fork now");
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pid = xfork ();
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if (pid == 0)
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{
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if (pthread_mutex_trylock (m) == 0)
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FAIL_EXIT1 ("child: mutex_trylock succeeded");
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if (pthread_mutex_unlock (m) == 0)
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FAIL_EXIT1 ("child: mutex_unlock succeeded");
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const struct timespec ts = timespec_add (xclock_now (CLOCK_REALTIME),
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make_timespec (0, 500000000));
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TEST_COMPARE (pthread_mutex_timedlock (m, &ts), ETIMEDOUT);
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alarm (1);
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pthread_mutex_lock (m);
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puts ("child: mutex_lock returned");
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exit (0);
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}
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sleep (2);
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int status;
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if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
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FAIL_EXIT1 ("waitpid failed");
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if (! WIFSIGNALED (status))
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FAIL_EXIT1 ("child not killed by signal");
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TEST_COMPARE (WTERMSIG (status), SIGALRM);
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return 0;
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}
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#include <support/test-driver.c>
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