mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/* Support functionality for using time.
|
|
Copyright (C) 2019-2023 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_TIME_H
|
|
#define SUPPORT_TIME_H
|
|
|
|
#include <time.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/* Name of the env variable, which indicates if it is possible to
|
|
adjust time on target machine. */
|
|
#define SETTIME_ENV_NAME "GLIBC_TEST_ALLOW_TIME_SETTING"
|
|
|
|
/* The following functions call the corresponding libc functions and
|
|
terminate the process on error. */
|
|
|
|
#ifndef __USE_TIME_BITS64
|
|
void xclock_gettime (clockid_t clock, struct timespec *ts);
|
|
void xclock_settime (clockid_t clock, const struct timespec *ts);
|
|
#else
|
|
void __REDIRECT (xclock_gettime, (clockid_t clock, struct timespec *ts),
|
|
xclock_gettime_time64);
|
|
void __REDIRECT (xclock_settime, (clockid_t clock, const struct timespec *ts),
|
|
xclock_settime_time64);
|
|
#endif
|
|
|
|
/* This helper can often simplify tests by avoiding an explicit
|
|
variable declaration or allowing that declaration to be const. */
|
|
|
|
static inline struct timespec xclock_now (clockid_t clock)
|
|
{
|
|
struct timespec ts;
|
|
xclock_gettime (clock, &ts);
|
|
return ts;
|
|
}
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* SUPPORT_TIME_H */
|