1 /* Useful functions for tests that use struct timespec.
2 Copyright (C) 2019-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #ifndef SUPPORT_TIMESPEC_H
20 #define SUPPORT_TIMESPEC_H
24 #include <support/check.h>
25 #include <support/xtime.h>
27 struct timespec
timespec_add (struct timespec
, struct timespec
)
28 __attribute__((const));
29 struct timespec
timespec_sub (struct timespec
, struct timespec
)
30 __attribute__((const));
32 static inline struct timespec
33 make_timespec (time_t s
, long int ns
)
41 enum { TIMESPEC_HZ
= 1000000000 };
43 void test_timespec_before_impl (const char *file
, int line
,
44 const struct timespec left
,
45 const struct timespec right
);
47 void test_timespec_equal_or_after_impl (const char *file
, int line
,
48 const struct timespec left
,
49 const struct timespec right
);
51 time_t support_timespec_ns (struct timespec time
);
53 struct timespec
support_timespec_normalize (struct timespec time
);
55 int support_timespec_check_in_range (struct timespec expected
, struct timespec observed
,
56 double lower_bound
, double upper_bound
);
59 /* Check that the timespec on the left represents a time before the
61 #define TEST_TIMESPEC_BEFORE(left, right) \
62 test_timespec_before_impl (__FILE__, __LINE__, (left), (right))
64 #define TEST_TIMESPEC_BEFORE_NOW(left, clockid) \
66 struct timespec now; \
67 const int saved_errno = errno; \
68 xclock_gettime ((clockid), &now); \
69 TEST_TIMESPEC_BEFORE ((left), now); \
70 errno = saved_errno; \
73 /* Check that the timespec on the left represents a time equal to or
74 after the time on the right. */
75 #define TEST_TIMESPEC_EQUAL_OR_AFTER(left, right) \
76 test_timespec_equal_or_after_impl (__FILE__, __LINE__, left, right)
78 #define TEST_TIMESPEC_NOW_OR_AFTER(clockid, right) \
80 struct timespec now; \
81 const int saved_errno = errno; \
82 xclock_gettime ((clockid), &now); \
83 TEST_TIMESPEC_EQUAL_OR_AFTER (now, (right)); \
84 errno = saved_errno; \
87 #endif /* SUPPORT_TIMESPEC_H */