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/* Useful functions for tests that use struct timespec.
Copyright (C) 2019-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef SUPPORT_TIMESPEC_H
#define SUPPORT_TIMESPEC_H
#include <stdio.h>
#include <time.h>
#include <support/check.h>
#include <support/xtime.h>
struct timespec timespec_add (struct timespec, struct timespec)
__attribute__((const));
struct timespec timespec_sub (struct timespec, struct timespec)
__attribute__((const));
static inline struct timespec
make_timespec (time_t s, long int ns)
{
struct timespec r;
r.tv_sec = s;
r.tv_nsec = ns;
return r;
}
enum { TIMESPEC_HZ = 1000000000 };
void test_timespec_before_impl (const char *file, int line,
const struct timespec left,
const struct timespec right);
void test_timespec_equal_or_after_impl (const char *file, int line,
const struct timespec left,
const struct timespec right);
time_t support_timespec_ns (struct timespec time);
struct timespec support_timespec_normalize (struct timespec time);
int support_timespec_check_in_range (struct timespec expected, struct timespec observed,
double lower_bound, double upper_bound);
/* Check that the timespec on the left represents a time before the
time on the right. */
#define TEST_TIMESPEC_BEFORE(left, right) \
test_timespec_before_impl (__FILE__, __LINE__, (left), (right))
#define TEST_TIMESPEC_BEFORE_NOW(left, clockid) \
({ \
struct timespec now; \
const int saved_errno = errno; \
xclock_gettime ((clockid), &now); \
TEST_TIMESPEC_BEFORE ((left), now); \
errno = saved_errno; \
})
/* Check that the timespec on the left represents a time equal to or
after the time on the right. */
#define TEST_TIMESPEC_EQUAL_OR_AFTER(left, right) \
test_timespec_equal_or_after_impl (__FILE__, __LINE__, left, right)
#define TEST_TIMESPEC_NOW_OR_AFTER(clockid, right) \
({ \
struct timespec now; \
const int saved_errno = errno; \
xclock_gettime ((clockid), &now); \
TEST_TIMESPEC_EQUAL_OR_AFTER (now, (right)); \
errno = saved_errno; \
})
#endif /* SUPPORT_TIMESPEC_H */
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