1 | /* Copyright (C) 2003-2022 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 | <https://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 | #include <intprops.h> |
24 | #include <support/support.h> |
25 | #include <support/check.h> |
26 | |
27 | /* Test that clock_nanosleep() does sleep. */ |
28 | static void |
29 | clock_nanosleep_test (void) |
30 | { |
31 | /* Current time. */ |
32 | struct timeval tv1; |
33 | gettimeofday (tv: &tv1, NULL); |
34 | |
35 | struct timespec ts = { 1, 0 }; |
36 | TEMP_FAILURE_RETRY (clock_nanosleep (CLOCK_REALTIME, 0, &ts, &ts)); |
37 | |
38 | /* At least one second must have passed. */ |
39 | struct timeval tv2; |
40 | gettimeofday (tv: &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 | TEST_VERIFY (tv2.tv_sec >= 1); |
48 | } |
49 | |
50 | static void |
51 | clock_nanosleep_large_timeout (void) |
52 | { |
53 | support_create_timer (sec: 0, nsec: 100000000, false, NULL); |
54 | struct timespec ts = { TYPE_MAXIMUM (time_t), 0 }; |
55 | int r = clock_nanosleep (CLOCK_REALTIME, flags: 0, req: &ts, NULL); |
56 | TEST_VERIFY (r == EINTR || r == EOVERFLOW); |
57 | } |
58 | |
59 | static int |
60 | do_test (void) |
61 | { |
62 | clock_nanosleep_test (); |
63 | clock_nanosleep_large_timeout (); |
64 | return 0; |
65 | } |
66 | |
67 | #include <support/test-driver.c> |
68 | |