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94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
/* Copyright (C) 2002, 2003, 2009 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>, 2002.
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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 <semaphore.h>
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#include <stdio.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/time.h>
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static int
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do_test (void)
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{
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sem_t s;
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struct timespec ts;
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struct timeval tv;
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if (sem_init (&s, 0, 1) == -1)
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{
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puts ("sem_init failed");
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return 1;
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}
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if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1)
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{
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puts ("sem_wait failed");
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return 1;
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}
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if (gettimeofday (&tv, NULL) != 0)
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{
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puts ("gettimeofday failed");
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return 1;
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}
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TIMEVAL_TO_TIMESPEC (&tv, &ts);
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/* We wait for half a second. */
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ts.tv_nsec += 500000000;
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if (ts.tv_nsec >= 1000000000)
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{
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++ts.tv_sec;
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ts.tv_nsec -= 1000000000;
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}
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errno = 0;
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if (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)) != -1)
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{
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puts ("sem_timedwait succeeded");
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return 1;
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}
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if (errno != ETIMEDOUT)
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{
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printf ("sem_timedwait return errno = %d instead of ETIMEDOUT\n",
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errno);
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return 1;
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}
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struct timespec ts2;
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if (clock_gettime (CLOCK_REALTIME, &ts2) != 0)
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{
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puts ("clock_gettime failed");
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return 1;
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}
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if (ts2.tv_sec < ts.tv_sec
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|| (ts2.tv_sec == ts.tv_sec && ts2.tv_nsec < ts.tv_nsec))
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{
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puts ("timeout too short");
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return 1;
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}
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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