time.h revision 9af9120091ceb96641d7c6c645fabad96db4bc0d 
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#include <xlocale.h>
35
36__BEGIN_DECLS
37
38#define CLOCKS_PER_SEC 1000000
39
40extern char* tzname[];
41extern int daylight;
42extern long int timezone;
43
44struct sigevent;
45
46struct tm {
47  int tm_sec;
48  int tm_min;
49  int tm_hour;
50  int tm_mday;
51  int tm_mon;
52  int tm_year;
53  int tm_wday;
54  int tm_yday;
55  int tm_isdst;
56  long int tm_gmtoff;
57  const char* tm_zone;
58};
59
60#define TM_ZONE tm_zone
61
62time_t time(time_t*);
63int nanosleep(const struct timespec*, struct timespec*);
64
65char* asctime(const struct tm*);
66char* asctime_r(const struct tm*, char*);
67
68double difftime(time_t, time_t);
69time_t mktime(struct tm*);
70
71struct tm* localtime(const time_t*);
72struct tm* localtime_r(const time_t*, struct tm*);
73
74struct tm* gmtime(const time_t*);
75struct tm* gmtime_r(const time_t*, struct tm*);
76
77char* strptime(const char*, const char*, struct tm*);
78size_t strftime(char*, size_t, const char*, const struct tm*);
79
80#if __ANDROID_API__ >= __ANDROID_API_L__
81size_t strftime_l(char*, size_t, const char*, const struct tm*, locale_t) __INTRODUCED_IN(21);
82#else
83// Implemented as static inline before 21.
84#endif
85
86char* ctime(const time_t*);
87char* ctime_r(const time_t*, char*);
88
89void tzset(void);
90
91clock_t clock(void);
92
93int clock_getcpuclockid(pid_t, clockid_t*) __INTRODUCED_IN(23);
94
95int clock_getres(clockid_t, struct timespec*);
96int clock_gettime(clockid_t, struct timespec*);
97int clock_nanosleep(clockid_t, int, const struct timespec*, struct timespec*);
98int clock_settime(clockid_t, const struct timespec*);
99
100int timer_create(int, struct sigevent*, timer_t*);
101int timer_delete(timer_t);
102int timer_settime(timer_t, int, const struct itimerspec*, struct itimerspec*);
103int timer_gettime(timer_t, struct itimerspec*);
104int timer_getoverrun(timer_t);
105
106/* Non-standard extensions that are in the BSDs and glibc. */
107time_t timelocal(struct tm*) __INTRODUCED_IN(12);
108time_t timegm(struct tm*) __INTRODUCED_IN(12);
109
110__END_DECLS
111
112#endif /* _TIME_H_ */
113