| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2003-2016 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #include <errno.h> |
| 19 | #include <stdio.h> |
| 20 | #include <unistd.h> |
| 21 | #include <sys/time.h> |
| 22 | #include <time.h> |
| 23 | |
| 24 | |
| 25 | /* Test that nanosleep() does sleep. */ |
| 26 | static int |
| 27 | do_test (void) |
| 28 | { |
| 29 | /* Current time. */ |
| 30 | struct timeval tv1; |
| 31 | (void) gettimeofday (&tv1, NULL); |
| 32 | |
| 33 | struct timespec ts; |
| 34 | ts.tv_sec = 1; |
| 35 | ts.tv_nsec = 0; |
| 36 | TEMP_FAILURE_RETRY (nanosleep (&ts, &ts)); |
| 37 | |
| 38 | /* At least one second must have passed. */ |
| 39 | struct timeval tv2; |
| 40 | (void) gettimeofday (&tv2, NULL); |
| 41 | |
| 42 | tv2.tv_sec -= tv1.tv_sec; |
| 43 | tv2.tv_usec -= tv1.tv_usec; |
| 44 | if (tv2.tv_usec < 0) |
| 45 | --tv2.tv_sec; |
| 46 | |
| 47 | if (tv2.tv_sec < 1) |
| 48 | { |
| 49 | puts ("nanosleep didn't sleep long enough"); |
| 50 | return 1; |
| 51 | } |
| 52 | |
| 53 | return 0; |
| 54 | } |
| 55 | |
| 56 | #define TEST_FUNCTION do_test () |
| 57 | #include "../test-skeleton.c" |