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 #ifndef _TIME_H_ 29 #define _TIME_H_ 30 31 #include <sys/cdefs.h> 32 #include <sys/time.h> 33 34 #define __ARCH_SI_UID_T __kernel_uid32_t 35 #include <asm/siginfo.h> 36 #undef __ARCH_SI_UID_T 37 38 __BEGIN_DECLS 39 40 extern time_t time(time_t *); 41 extern int nanosleep(const struct timespec *, struct timespec *); 42 43 extern char *strtotimeval(const char *str, struct timeval *tv); 44 45 struct tm { 46 int tm_sec; /* seconds */ 47 int tm_min; /* minutes */ 48 int tm_hour; /* hours */ 49 int tm_mday; /* day of the month */ 50 int tm_mon; /* month */ 51 int tm_year; /* year */ 52 int tm_wday; /* day of the week */ 53 int tm_yday; /* day in the year */ 54 int tm_isdst; /* daylight saving time */ 55 56 long int tm_gmtoff; /* Seconds east of UTC. */ 57 const char *tm_zone; /* Timezone abbreviation. */ 58 59 }; 60 61 /* defining TM_ZONE indicates that we have a "timezone abbreviation" field in 62 * struct tm, the value should be the field name 63 */ 64 #define TM_ZONE tm_zone 65 66 extern char* asctime(const struct tm* a); 67 extern char* asctime_r(const struct tm* a, char* buf); 68 69 /* Return the difference between TIME1 and TIME0. */ 70 extern double difftime (time_t __time1, time_t __time0); 71 extern time_t mktime (struct tm *a); 72 73 extern struct tm* localtime(const time_t *t); 74 extern struct tm* localtime_r(const time_t *timep, struct tm *result); 75 76 extern struct tm* gmtime(const time_t *timep); 77 extern struct tm* gmtime_r(const time_t *timep, struct tm *result); 78 79 extern char* strptime(const char *buf, const char *fmt, struct tm *tm); 80 extern size_t strftime(char *s, size_t max, const char *format, const struct tm *tm); 81 82 extern char *ctime(const time_t *timep); 83 extern char *ctime_r(const time_t *timep, char *buf); 84 85 extern void tzset(void); 86 87 /* global includes */ 88 extern char* tzname[]; 89 extern int daylight; 90 extern long int timezone; 91 92 #define CLOCKS_PER_SEC 1000000 93 94 extern clock_t clock(void); 95 96 /* BIONIC: extra linux clock goodies */ 97 extern int clock_getres(int, struct timespec *); 98 extern int clock_gettime(int, struct timespec *); 99 100 #define CLOCK_REALTIME 0 101 #define CLOCK_MONOTONIC 1 102 #define CLOCK_PROCESS_CPUTIME_ID 2 103 #define CLOCK_THREAD_CPUTIME_ID 3 104 #define CLOCK_REALTIME_HR 4 105 #define CLOCK_MONOTONIC_HR 5 106 #define CLOCK_BOOTTIME 7 107 108 extern int timer_create(int, struct sigevent*, timer_t*); 109 extern int timer_delete(timer_t); 110 extern int timer_settime(timer_t timerid, int flags, const struct itimerspec *value, struct itimerspec *ovalue); 111 extern int timer_gettime(timer_t timerid, struct itimerspec *value); 112 extern int timer_getoverrun(timer_t timerid); 113 114 extern time_t timelocal(struct tm *tm); 115 extern time_t timegm(struct tm* tm); 116 extern time_t time2posix(time_t ti); 117 extern time_t posix2time(time_t ti); 118 119 __END_DECLS 120 121 #endif /* _TIME_H_ */ 122