1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/* Copyright (C) 1991, 1992, 1993, 1994, 1995 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/*
* ANSI Standard: 4.12 DATE and TIME <time.h>
*/
#ifndef _TIME_H
#if !defined(__need_time_t) && !defined(__need_clock_t)
#define _TIME_H 1
#include <features.h>
__BEGIN_DECLS
#endif
#ifdef _TIME_H
/* Get size_t and NULL from <stddef.h>. */
#define __need_size_t
#define __need_NULL
#include <stddef.h>
#endif /* <time.h> included. */
#ifdef _TIME_H
/* Processor clock ticks per second. */
#define CLOCKS_PER_SEC 1 /* ??? */
#ifdef __USE_POSIX
#define CLK_TCK 60 /* ??? */
#endif
#endif /* <time.h> included. */
#if !defined(__clock_t_defined) && \
(defined(_TIME_H) || defined(__need_clock_t))
#define __clock_t_defined 1
/* Returned by `clock'. */
typedef long int clock_t;
#endif /* clock_t not defined and <time.h> or need clock_t. */
#undef __need_clock_t
#if !defined(__time_t_defined) && \
(defined(_TIME_H) || defined(__need_time_t))
#define __time_t_defined 1
#include <gnu/types.h>
/* Returned by `time'. */
typedef __time_t time_t;
#endif /* time_t not defined and <time.h> or need time_t. */
#undef __need_time_t
#ifdef _TIME_H
/* Used by other time functions. */
struct tm
{
int tm_sec; /* Seconds. [0-61] (2 leap seconds) */
int tm_min; /* Minutes. [0-59] */
int tm_hour; /* Hours. [0-23] */
int tm_mday; /* Day. [1-31] */
int tm_mon; /* Month. [0-11] */
int tm_year; /* Year - 1900. */
int tm_wday; /* Day of week. [0-6] */
int tm_yday; /* Days in year.[0-365] */
int tm_isdst; /* DST. [-1/0/1]*/
long int tm_gmtoff; /* Seconds west of UTC. */
__const char *tm_zone; /* Timezone abbreviation. */
};
#endif /* <time.h> included. */
#ifdef _TIME_H
/* Time used by the program so far (user time + system time).
The result / CLOCKS_PER_SECOND is program time in seconds. */
extern clock_t clock __P ((void));
/* Return the current time and put it in *TIMER if TIMER is not NULL. */
extern time_t time __P ((time_t *__timer));
/* Return the difference between TIME1 and TIME0. */
extern double difftime __P ((time_t __time1, time_t __time0))
__attribute__ ((__const__));
/* Return the `time_t' representation of TP and normalize TP. */
extern time_t mktime __P ((struct tm *__tp));
/* Subroutine of `mktime'. Return the `time_t' representation of TP and
normalize TP, given that a `struct tm *' maps to a `time_t' as performed
by FUNC. Keep track of next guess for time_t offset in *OFFSET. */
extern time_t __mktime_internal __P ((struct tm *__tp,
struct tm *(*__func) (const time_t *,
struct tm *),
time_t *__offset));
/* Format TP into S according to FORMAT.
Write no more than MAXSIZE characters and return the number
of characters written, or 0 if it would exceed MAXSIZE. */
extern size_t strftime __P ((char *__s, size_t __maxsize,
__const char *__format, __const struct tm *__tp));
/* Return the `struct tm' representation of *TIMER
in Universal Coordinated Time (aka Greenwich Mean Time). */
extern struct tm *gmtime __P ((__const time_t *__timer));
/* Return the `struct tm' representation
of *TIMER in the local timezone. */
extern struct tm *localtime __P ((__const time_t *__timer));
#ifdef __USE_REENTRANT
/* Return the `struct tm' representation of *TIMER in UTC,
using *TP to store the result. */
extern struct tm *__gmtime_r __P ((__const time_t *__timer,
struct tm *__tp));
extern struct tm *gmtime_r __P ((__const time_t *__timer,
struct tm *__tp));
/* Return the `struct tm' representation of *TIMER in local time,
using *TP to store the result. */
extern struct tm *__localtime_r __P ((__const time_t *__timer,
struct tm *__tp));
extern struct tm *localtime_r __P ((__const time_t *__timer,
struct tm *__tp));
#endif
/* Compute the `struct tm' representation of *T,
offset OFFSET seconds east of UTC,
and store year, yday, mon, mday, wday, hour, min, sec into *TP. */
extern void __offtime __P ((__const time_t *__timer,
long int __offset,
struct tm *__TP));
/* Return a string of the form "Day Mon dd hh:mm:ss yyyy\n"
that is the representation of TP in this format. */
extern char *asctime __P ((__const struct tm *__tp));
/* Equivalent to `asctime(localtime(timer))'. */
extern char *ctime __P ((__const time_t *__timer));
/* Defined in localtime.c. */
extern char *__tzname[2]; /* Current timezone names. */
extern int __daylight; /* If it is daylight savings time. */
extern long int __timezone; /* Seconds west of UTC. */
/* Set time conversion information from the TZ environment variable.
If TZ is not defined, a locale-dependent default is used. */
extern void __tzset __P ((void));
#ifdef __USE_POSIX
/* Same as above. */
extern char *tzname[2];
/* Return the maximum length of a timezone name.
This is what `sysconf (_SC_TZNAME_MAX)' does. */
extern long int __tzname_max __P ((void));
extern void tzset __P ((void));
#ifdef __OPTIMIZE__
#define tzset() __tzset()
#endif /* Optimizing. */
#endif
#ifdef __USE_SVID
extern int daylight;
extern long int timezone;
/* Set the system time to *WHEN.
This call is restricted to the superuser. */
extern int stime __P ((__const time_t *__when));
#endif
/* Nonzero if YEAR is a leap year (every 4 years,
except every 100th isn't, and every 400th is). */
#define __isleap(year) \
((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
#ifdef __USE_MISC
/* Miscellaneous functions many Unices inherited from the public domain
localtime package. These are included only for compatibility. */
/* Like `mktime', but for TP represents Universal Time, not local time. */
extern time_t timegm __P ((struct tm *__tp));
/* Another name for `mktime'. */
extern time_t timelocal __P ((struct tm *__tp));
/* Return the number of days in YEAR. */
extern int dysize __P ((int __year));
#endif
__END_DECLS
#endif /* <time.h> included. */
#endif /* <time.h> not already included. */
|
