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1 | /* Useful functions for tests that use struct timespec. |
2 | Copyright (C) 2019 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 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #ifndef SUPPORT_TIMESPEC_H | |
20 | #define SUPPORT_TIMESPEC_H | |
21 | ||
22 | #include <stdio.h> | |
23 | #include <time.h> | |
24 | #include <support/check.h> | |
25 | #include <support/xtime.h> | |
26 | ||
27 | struct timespec timespec_add (struct timespec, struct timespec) | |
28 | __attribute__((const)); | |
29 | struct timespec timespec_sub (struct timespec, struct timespec) | |
30 | __attribute__((const)); | |
31 | ||
32 | static inline struct timespec | |
33 | make_timespec (time_t s, long int ns) | |
34 | { | |
35 | struct timespec r; | |
36 | r.tv_sec = s; | |
37 | r.tv_nsec = ns; | |
38 | return r; | |
39 | } | |
40 | ||
41 | enum { TIMESPEC_HZ = 1000000000 }; | |
42 | ||
43 | void test_timespec_before_impl (const char *file, int line, | |
44 | const struct timespec left, | |
45 | const struct timespec right); | |
46 | ||
47 | void test_timespec_equal_or_after_impl (const char *file, int line, | |
48 | const struct timespec left, | |
49 | const struct timespec right); | |
50 | ||
51 | /* Check that the timespec on the left represents a time before the | |
52 | time on the right. */ | |
53 | #define TEST_TIMESPEC_BEFORE(left, right) \ | |
54 | test_timespec_before_impl (__FILE__, __LINE__, (left), (right)) | |
55 | ||
56 | #define TEST_TIMESPEC_BEFORE_NOW(left, clockid) \ | |
57 | ({ \ | |
58 | struct timespec now; \ | |
59 | const int saved_errno = errno; \ | |
60 | xclock_gettime ((clockid), &now); \ | |
61 | TEST_TIMESPEC_BEFORE ((left), now); \ | |
62 | errno = saved_errno; \ | |
63 | }) | |
64 | ||
65 | /* Check that the timespec on the left represents a after before the | |
66 | time on the right. */ | |
67 | #define TEST_TIMESPEC_EQUAL_OR_AFTER(left, right) \ | |
68 | test_timespec_equal_or_after_impl (__FILE__, __LINE__, left, right) | |
69 | ||
70 | #define TEST_TIMESPEC_NOW_OR_AFTER(clockid, right) \ | |
71 | ({ \ | |
72 | struct timespec now; \ | |
73 | const int saved_errno = errno; \ | |
74 | xclock_gettime ((clockid), &now); \ | |
75 | TEST_TIMESPEC_EQUAL_OR_AFTER (now, (right)); \ | |
76 | errno = saved_errno; \ | |
77 | }) | |
78 | ||
79 | #endif /* SUPPORT_TIMESPEC_H */ |