Preview: timex.h
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/usr/include/sys/timex.h
/* Copyright (C) 1995-2021 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 _SYS_TIMEX_H
#define _SYS_TIMEX_H 1
#include <features.h>
#include <sys/time.h>
/* These definitions from linux/timex.h as of 2.6.30. */
#include <bits/timex.h>
#define NTP_API 4 /* NTP API version */
struct ntptimeval
{
struct timeval time; /* current time (ro) */
long int maxerror; /* maximum error (us) (ro) */
long int esterror; /* estimated error (us) (ro) */
long int tai; /* TAI offset (ro) */
long int __glibc_reserved1;
long int __glibc_reserved2;
long int __glibc_reserved3;
long int __glibc_reserved4;
};
/* Clock states (time_state) */
#define TIME_OK 0 /* clock synchronized, no leap second */
#define TIME_INS 1 /* insert leap second */
#define TIME_DEL 2 /* delete leap second */
#define TIME_OOP 3 /* leap second in progress */
#define TIME_WAIT 4 /* leap second has occurred */
#define TIME_ERROR 5 /* clock not synchronized */
#define TIME_BAD TIME_ERROR /* bw compat */
/* Maximum time constant of the PLL. */
#define MAXTC 6
__BEGIN_DECLS
#ifndef __USE_TIME_BITS64
extern int adjtimex (struct timex *__ntx) __THROW;
extern int ntp_gettimex (struct ntptimeval *__ntv) __THROW;
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (ntp_gettime, (struct ntptimeval *__ntv),
ntp_gettimex);
# else
# define ntp_gettime ntp_gettimex
# endif
extern int ntp_adjtime (struct timex *__tntx) __THROW;
#else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (adjtimex, (struct timex *__ntx),
___adjtimex64);
extern int __REDIRECT_NTH (ntp_gettime, (struct ntptimeval *__ntv),
__ntp_gettime64);
extern int __REDIRECT_NTH (ntp_gettimex, (struct ntptimeval *__ntv),
__ntp_gettimex64);
extern int __REDIRECT_NTH (ntp_adjtime, (struct timex *__ntx),
___adjtimex64);
# else
# define adjtimex ___adjtimex64
# define ntp_adjtime ___adjtimex64
# define ntp_gettime __ntp_gettime64
# define ntp_gettimex __ntp_gettimex64
# endif
#endif
__END_DECLS
#endif /* sys/timex.h */
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