glibc/support/timespec.h

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/* Useful functions for tests that use struct timespec.
Copyright (C) 2019-2024 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
Prefer https to http for gnu.org and fsf.org URLs Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
<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>
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 };
#ifndef __USE_TIME64_REDIRECTS
struct timespec timespec_add (struct timespec, struct timespec)
__attribute__((const));
struct timespec timespec_sub (struct timespec, struct timespec)
__attribute__((const));
void test_timespec_before_impl (const char *file, int line,
struct timespec left,
struct timespec right);
void test_timespec_equal_or_after_impl (const char *file, int line,
struct timespec left,
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);
struct timespec dtotimespec (double sec) __attribute__((const));
#else
struct timespec __REDIRECT (timespec_add, (struct timespec, struct timespec),
timespec_add_time64);
struct timespec __REDIRECT (timespec_sub, (struct timespec, struct timespec),
timespec_sub_time64);
void __REDIRECT (test_timespec_before_impl, (const char *file, int line,
struct timespec left,
struct timespec right),
test_timespec_before_impl_time64);
void __REDIRECT (test_timespec_equal_or_after_impl, (const char *f, int line,
struct timespec left,
struct timespec right),
test_timespec_equal_or_after_impl_time64);
time_t __REDIRECT (support_timespec_ns, (struct timespec time),
support_timespec_ns_time64);
struct timespec __REDIRECT (support_timespec_normalize, (struct timespec time),
support_timespec_normalize_time64);
int __REDIRECT (support_timespec_check_in_range, (struct timespec expected,
struct timespec observed,
double lower_bound,
double upper_bound),
support_timespec_check_in_range_time64);
struct timespec __REDIRECT (dtotimespec, (double sec), dtotimespec_time64);
#endif
/* 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 */