| 1 | /* Copyright (C) 2002-2024 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | #include <errno.h> |
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| 19 | #include <semaphore.h> |
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| 20 | #include <time.h> |
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| 21 | #include <unistd.h> |
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| 22 | #include <sys/time.h> |
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| 23 | #include <support/check.h> |
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| 24 | #include <support/timespec.h> |
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| 25 | #include <support/xtime.h> |
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| 26 | |
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| 27 | /* A bogus clock value that tells run_test to use sem_timedwait rather than |
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| 28 | sem_clockwait. */ |
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| 29 | #define CLOCK_USE_TIMEDWAIT (-1) |
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| 30 | |
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| 31 | static void |
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| 32 | do_test_clock (clockid_t clockid) |
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| 33 | { |
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| 34 | const clockid_t clockid_for_get = |
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| 35 | clockid == CLOCK_USE_TIMEDWAIT ? CLOCK_REALTIME : clockid; |
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| 36 | sem_t s; |
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| 37 | struct timespec ts; |
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| 38 | |
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| 39 | TEST_COMPARE (sem_init (&s, 0, 1), 0); |
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| 40 | TEST_COMPARE (TEMP_FAILURE_RETRY (sem_wait (&s)), 0); |
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| 41 | |
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| 42 | /* We wait for half a second. */ |
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| 43 | xclock_gettime (clock: clockid_for_get, ts: &ts); |
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| 44 | ts = timespec_add (ts, make_timespec (s: 0, ns: TIMESPEC_HZ/2)); |
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| 45 | |
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| 46 | errno = 0; |
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| 47 | TEST_COMPARE (TEMP_FAILURE_RETRY ((clockid == CLOCK_USE_TIMEDWAIT) |
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| 48 | ? sem_timedwait (&s, &ts) |
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| 49 | : sem_clockwait (&s, clockid, &ts)), -1); |
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| 50 | TEST_COMPARE (errno, ETIMEDOUT); |
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| 51 | TEST_TIMESPEC_NOW_OR_AFTER (clockid_for_get, ts); |
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| 52 | } |
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| 53 | |
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| 54 | static int do_test (void) |
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| 55 | { |
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| 56 | do_test_clock (CLOCK_USE_TIMEDWAIT); |
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| 57 | do_test_clock (CLOCK_REALTIME); |
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| 58 | do_test_clock (CLOCK_MONOTONIC); |
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| 59 | return 0; |
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| 60 | } |
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| 61 | |
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| 62 | #include <support/test-driver.c> |
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| 63 | |
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