time.h revision efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _TIME_H_
30#define _TIME_H_
31
32#include <sys/cdefs.h>
33#include <sys/time.h>
34
35__BEGIN_DECLS
36
37#define CLOCKS_PER_SEC 1000000
38
39extern char* tzname[];
40extern int daylight;
41extern long int timezone;
42
43struct sigevent;
44
45struct tm {
46  int tm_sec;
47  int tm_min;
48  int tm_hour;
49  int tm_mday;
50  int tm_mon;
51  int tm_year;
52  int tm_wday;
53  int tm_yday;
54  int tm_isdst;
55  long int tm_gmtoff;
56  const char* tm_zone;
57};
58
59#define TM_ZONE tm_zone
60
61extern time_t time(time_t*);
62extern int nanosleep(const struct timespec*, struct timespec*);
63
64extern char* asctime(const struct tm*);
65extern char* asctime_r(const struct tm*, char*);
66
67extern double difftime(time_t, time_t);
68extern time_t mktime(struct tm*);
69
70extern struct tm* localtime(const time_t*);
71extern struct tm* localtime_r(const time_t*, struct tm*);
72
73extern struct tm* gmtime(const time_t*);
74extern struct tm* gmtime_r(const time_t*, struct tm*);
75
76extern char* strptime(const char*, const char*, struct tm*);
77extern size_t strftime(char*, size_t, const char*, const struct tm*);
78
79extern char* ctime(const time_t*);
80extern char* ctime_r(const time_t*, char*);
81
82extern void tzset(void);
83
84extern clock_t clock(void);
85
86extern int clock_getres(int, struct timespec*);
87extern int clock_gettime(int, struct timespec*);
88
89extern int timer_create(int, struct sigevent*, timer_t*);
90extern int timer_delete(timer_t);
91extern int timer_settime(timer_t, int, const struct itimerspec*, struct itimerspec*);
92extern int timer_gettime(timer_t, struct itimerspec*);
93extern int timer_getoverrun(timer_t);
94
95extern time_t timelocal(struct tm*);
96extern time_t timegm(struct tm*);
97extern time_t time2posix(time_t);
98extern time_t posix2time(time_t);
99
100__END_DECLS
101
102#endif /* _TIME_H_ */
103