glibc (2.38)
1 /* Copyright (C) 1995-2023 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 <https://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
30 struct 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
57 #ifndef __USE_TIME_BITS64
58 extern int adjtimex (struct timex *__ntx) __THROW __nonnull ((1));
59 extern int ntp_gettimex (struct ntptimeval *__ntv) __THROW __nonnull ((1));
60
61 # ifdef __REDIRECT_NTH
62 extern int __REDIRECT_NTH (ntp_gettime, (struct ntptimeval *__ntv),
63 ntp_gettimex) __nonnull ((1));
64 # else
65 # define ntp_gettime ntp_gettimex
66 # endif
67 extern int ntp_adjtime (struct timex *__tntx) __THROW __nonnull ((1));
68 #else
69 # ifdef __REDIRECT_NTH
70 extern int __REDIRECT_NTH (adjtimex, (struct timex *__ntx),
71 ___adjtimex64) __nonnull ((1));
72 extern int __REDIRECT_NTH (ntp_gettime, (struct ntptimeval *__ntv),
73 __ntp_gettime64) __nonnull ((1));
74 extern int __REDIRECT_NTH (ntp_gettimex, (struct ntptimeval *__ntv),
75 __ntp_gettimex64) __nonnull ((1));
76 extern int __REDIRECT_NTH (ntp_adjtime, (struct timex *__ntx),
77 ___adjtimex64) __nonnull ((1));
78 # else
79 # define adjtimex ___adjtimex64
80 # define ntp_adjtime ___adjtimex64
81 # define ntp_gettime __ntp_gettime64
82 # define ntp_gettimex __ntp_gettimex64
83 # endif
84 #endif
85
86 __END_DECLS
87
88 #endif /* sys/timex.h */
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