| 1 | /* Check that clock_gettime does not clobber errno on success. |
|---|---|
| 2 | Copyright (C) 2021-2024 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <https://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <errno.h> |
| 20 | #include <time.h> |
| 21 | #include <support/check.h> |
| 22 | #include <stdio.h> |
| 23 | |
| 24 | static void |
| 25 | test_clock (clockid_t clk) |
| 26 | { |
| 27 | printf (format: "info: testing clock: %d\n", (int) clk); |
| 28 | |
| 29 | for (int original_errno = 0; original_errno < 2; ++original_errno) |
| 30 | { |
| 31 | errno = original_errno; |
| 32 | struct timespec ts; |
| 33 | if (clock_gettime (clock_id: clk, tp: &ts) == 0) |
| 34 | TEST_COMPARE (errno, original_errno); |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | static int |
| 39 | do_test (void) |
| 40 | { |
| 41 | test_clock (CLOCK_BOOTTIME); |
| 42 | test_clock (CLOCK_BOOTTIME_ALARM); |
| 43 | test_clock (CLOCK_MONOTONIC); |
| 44 | test_clock (CLOCK_MONOTONIC_COARSE); |
| 45 | test_clock (CLOCK_MONOTONIC_RAW); |
| 46 | test_clock (CLOCK_PROCESS_CPUTIME_ID); |
| 47 | test_clock (CLOCK_REALTIME); |
| 48 | test_clock (CLOCK_REALTIME_ALARM); |
| 49 | test_clock (CLOCK_REALTIME_COARSE); |
| 50 | #ifdef CLOCK_TAI |
| 51 | test_clock (CLOCK_TAI); |
| 52 | #endif |
| 53 | test_clock (CLOCK_THREAD_CPUTIME_ID); |
| 54 | return 0; |
| 55 | } |
| 56 | |
| 57 | #include <support/test-driver.c> |
| 58 |