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 
40 extern char* tzname[];
41 extern int daylight;
42 extern long int timezone;
43 
44 struct sigevent;
45 
46 struct 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 
62 time_t time(time_t*);
63 int nanosleep(const struct timespec*, struct timespec*);
64 
65 char* asctime(const struct tm*);
66 char* asctime_r(const struct tm*, char*);
67 
68 double difftime(time_t, time_t);
69 time_t mktime(struct tm*);
70 
71 struct tm* localtime(const time_t*);
72 struct tm* localtime_r(const time_t*, struct tm*);
73 
74 struct tm* gmtime(const time_t*);
75 struct tm* gmtime_r(const time_t*, struct tm*);
76 
77 char* strptime(const char*, const char*, struct tm*);
78 size_t strftime(char*, size_t, const char*, const struct tm*);
79 
80 #if __ANDROID_API__ >= __ANDROID_API_L__
81 size_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 
86 char* ctime(const time_t*);
87 char* ctime_r(const time_t*, char*);
88 
89 void tzset(void);
90 
91 clock_t clock(void);
92 
93 int clock_getcpuclockid(pid_t, clockid_t*) __INTRODUCED_IN(23);
94 
95 int clock_getres(clockid_t, struct timespec*);
96 int clock_gettime(clockid_t, struct timespec*);
97 int clock_nanosleep(clockid_t, int, const struct timespec*, struct timespec*);
98 int clock_settime(clockid_t, const struct timespec*);
99 
100 int timer_create(int, struct sigevent*, timer_t*);
101 int timer_delete(timer_t);
102 int timer_settime(timer_t, int, const struct itimerspec*, struct itimerspec*);
103 int timer_gettime(timer_t, struct itimerspec*);
104 int timer_getoverrun(timer_t);
105 
106 /* Non-standard extensions that are in the BSDs and glibc. */
107 time_t timelocal(struct tm*) __INTRODUCED_IN(12);
108 time_t timegm(struct tm*) __INTRODUCED_IN(12);
109 
110 __END_DECLS
111 
112 #endif /* _TIME_H_ */
113