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1/* Copyright (C) 1995-2018 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18#ifndef _SYS_TIMEX_H
19#define _SYS_TIMEX_H 1
20
21#include <features.h>
22#include <sys/time.h>
23
24/* These definitions from linux/timex.h as of 2.6.30. */
25
26#include <bits/timex.h>
27
28#define NTP_API 4 /* NTP API version */
29
30struct ntptimeval
31{
32 struct timeval time; /* current time (ro) */
33 long int maxerror; /* maximum error (us) (ro) */
34 long int esterror; /* estimated error (us) (ro) */
35 long int tai; /* TAI offset (ro) */
36
37 long int __glibc_reserved1;
38 long int __glibc_reserved2;
39 long int __glibc_reserved3;
40 long int __glibc_reserved4;
41};
42
43/* Clock states (time_state) */
44#define TIME_OK 0 /* clock synchronized, no leap second */
45#define TIME_INS 1 /* insert leap second */
46#define TIME_DEL 2 /* delete leap second */
47#define TIME_OOP 3 /* leap second in progress */
48#define TIME_WAIT 4 /* leap second has occurred */
49#define TIME_ERROR 5 /* clock not synchronized */
50#define TIME_BAD TIME_ERROR /* bw compat */
51
52/* Maximum time constant of the PLL. */
53#define MAXTC 6
54
55__BEGIN_DECLS
56
57extern int __adjtimex (struct timex *__ntx) __THROW;
58extern int adjtimex (struct timex *__ntx) __THROW;
59
60#ifdef __REDIRECT_NTH
61extern int __REDIRECT_NTH (ntp_gettime, (struct ntptimeval *__ntv),
62 ntp_gettimex);
63#else
64extern int ntp_gettimex (struct ntptimeval *__ntv) __THROW;
65# define ntp_gettime ntp_gettimex
66#endif
67extern int ntp_adjtime (struct timex *__tntx) __THROW;
68
69__END_DECLS
70
71#endif /* sys/timex.h */
72

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