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04277e02 | 1 | /* Copyright (C) 2003-2019 Free Software Foundation, Inc. |
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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 | |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
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17 | |
18 | #include <errno.h> | |
19 | #include <stdio.h> | |
20 | #include <unistd.h> | |
21 | #include <sys/time.h> | |
346f3a90 | 22 | #include <time.h> |
0a8730cb UD |
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" |