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/* Support functionality for using time.
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
<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 */
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