1/* Useful functions for tests that use struct timespec.
2 Copyright (C) 2019-2022 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#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
27static inline struct timespec
28make_timespec (time_t s, long int ns)
29{
30 struct timespec r;
31 r.tv_sec = s;
32 r.tv_nsec = ns;
33 return r;
34}
35
36enum { TIMESPEC_HZ = 1000000000 };
37
38#ifndef __USE_TIME_BITS64
39struct timespec timespec_add (struct timespec, struct timespec)
40 __attribute__((const));
41struct timespec timespec_sub (struct timespec, struct timespec)
42 __attribute__((const));
43
44void test_timespec_before_impl (const char *file, int line,
45 struct timespec left,
46 struct timespec right);
47
48void test_timespec_equal_or_after_impl (const char *file, int line,
49 struct timespec left,
50 struct timespec right);
51
52time_t support_timespec_ns (struct timespec time);
53
54struct timespec support_timespec_normalize (struct timespec time);
55
56int support_timespec_check_in_range (struct timespec expected,
57 struct timespec observed,
58 double lower_bound, double upper_bound);
59
60#else
61struct timespec __REDIRECT (timespec_add, (struct timespec, struct timespec),
62 timespec_add_time64);
63struct timespec __REDIRECT (timespec_sub, (struct timespec, struct timespec),
64 timespec_sub_time64);
65void __REDIRECT (test_timespec_before_impl, (const char *file, int line,
66 struct timespec left,
67 struct timespec right),
68 test_timespec_before_impl_time64);
69void __REDIRECT (test_timespec_equal_or_after_impl, (const char *f, int line,
70 struct timespec left,
71 struct timespec right),
72 test_timespec_equal_or_after_impl_time64);
73
74time_t __REDIRECT (support_timespec_ns, (struct timespec time),
75 support_timespec_ns_time64);
76
77struct timespec __REDIRECT (support_timespec_normalize, (struct timespec time),
78 support_timespec_normalize_time64);
79
80int __REDIRECT (support_timespec_check_in_range, (struct timespec expected,
81 struct timespec observed,
82 double lower_bound,
83 double upper_bound),
84 support_timespec_check_in_range_time64);
85#endif
86
87/* Check that the timespec on the left represents a time before the
88 time on the right. */
89#define TEST_TIMESPEC_BEFORE(left, right) \
90 test_timespec_before_impl (__FILE__, __LINE__, (left), (right))
91
92#define TEST_TIMESPEC_BEFORE_NOW(left, clockid) \
93 ({ \
94 struct timespec now; \
95 const int saved_errno = errno; \
96 xclock_gettime ((clockid), &now); \
97 TEST_TIMESPEC_BEFORE ((left), now); \
98 errno = saved_errno; \
99 })
100
101/* Check that the timespec on the left represents a time equal to or
102 after the time on the right. */
103#define TEST_TIMESPEC_EQUAL_OR_AFTER(left, right) \
104 test_timespec_equal_or_after_impl (__FILE__, __LINE__, left, right)
105
106#define TEST_TIMESPEC_NOW_OR_AFTER(clockid, right) \
107 ({ \
108 struct timespec now; \
109 const int saved_errno = errno; \
110 xclock_gettime ((clockid), &now); \
111 TEST_TIMESPEC_EQUAL_OR_AFTER (now, (right)); \
112 errno = saved_errno; \
113 })
114
115#endif /* SUPPORT_TIMESPEC_H */
116