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64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/* Copyright (C) 2002-2020 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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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <semaphore.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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#include <support/check.h>
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#include <support/timespec.h>
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#include <support/xtime.h>
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/* A bogus clock value that tells run_test to use sem_timedwait rather than
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sem_clockwait. */
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#define CLOCK_USE_TIMEDWAIT (-1)
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static void
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do_test_clock (clockid_t clockid)
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{
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const clockid_t clockid_for_get =
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clockid == CLOCK_USE_TIMEDWAIT ? CLOCK_REALTIME : clockid;
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sem_t s;
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struct timespec ts;
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TEST_COMPARE (sem_init (&s, 0, 1), 0);
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TEST_COMPARE (TEMP_FAILURE_RETRY (sem_wait (&s)), 0);
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/* We wait for half a second. */
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xclock_gettime (clockid_for_get, &ts);
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ts = timespec_add (ts, make_timespec (0, TIMESPEC_HZ/2));
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errno = 0;
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TEST_COMPARE (TEMP_FAILURE_RETRY ((clockid == CLOCK_USE_TIMEDWAIT)
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? sem_timedwait (&s, &ts)
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: sem_clockwait (&s, clockid, &ts)), -1);
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TEST_COMPARE (errno, ETIMEDOUT);
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TEST_TIMESPEC_NOW_OR_AFTER (clockid_for_get, ts);
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}
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static int do_test (void)
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{
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do_test_clock (CLOCK_USE_TIMEDWAIT);
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do_test_clock (CLOCK_REALTIME);
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do_test_clock (CLOCK_MONOTONIC);
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return 0;
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}
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#include <support/test-driver.c>
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