time.h revision 151870
1163130Sceri/* 2163130Sceri * Copyright (c) 1989, 1993 3163130Sceri * The Regents of the University of California. All rights reserved. 4163130Sceri * (c) UNIX System Laboratories, Inc. 5163130Sceri * All or some portions of this file are derived from material licensed 6163130Sceri * to the University of California by American Telephone and Telegraph 7163130Sceri * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8163130Sceri * the permission of UNIX System Laboratories, Inc. 9163130Sceri * 10163130Sceri * Redistribution and use in source and binary forms, with or without 11163130Sceri * modification, are permitted provided that the following conditions 12163130Sceri * are met: 13163130Sceri * 1. Redistributions of source code must retain the above copyright 14163130Sceri * notice, this list of conditions and the following disclaimer. 15163130Sceri * 2. Redistributions in binary form must reproduce the above copyright 16163130Sceri * notice, this list of conditions and the following disclaimer in the 17163130Sceri * documentation and/or other materials provided with the distribution. 18163130Sceri * 3. All advertising materials mentioning features or use of this software 19163130Sceri * must display the following acknowledgement: 20163130Sceri * This product includes software developed by the University of 21163130Sceri * California, Berkeley and its contributors. 22163130Sceri * 4. Neither the name of the University nor the names of its contributors 23163130Sceri * may be used to endorse or promote products derived from this software 24163130Sceri * without specific prior written permission. 25163130Sceri * 26163130Sceri * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27163130Sceri * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28163156Sceri * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29206622Suqs * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30163130Sceri * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31163130Sceri * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32163130Sceri * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33163130Sceri * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34163130Sceri * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35163130Sceri * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36163130Sceri * SUCH DAMAGE. 37163130Sceri * 38163130Sceri * @(#)time.h 8.3 (Berkeley) 1/21/94 39163130Sceri */ 40163130Sceri 41163130Sceri/* 42163130Sceri * $FreeBSD: head/include/time.h 151870 2005-10-30 03:15:05Z davidxu $ 43163130Sceri */ 44163130Sceri 45163130Sceri#ifndef _TIME_H_ 46163130Sceri#define _TIME_H_ 47163130Sceri 48163130Sceri#include <sys/cdefs.h> 49163130Sceri#include <sys/_null.h> 50163130Sceri#include <sys/_types.h> 51163130Sceri 52163130Sceri#if __POSIX_VISIBLE > 0 && __POSIX_VISIBLE < 200112 || __BSD_VISIBLE 53163130Sceri/* 54163130Sceri * Frequency of the clock ticks reported by times(). Deprecated - use 55163130Sceri * sysconf(_SC_CLK_TCK) instead. (Removed in 1003.1-2001.) 56163130Sceri */ 57163130Sceri#define CLK_TCK 128 58163130Sceri#endif 59163130Sceri 60163130Sceri/* Frequency of the clock ticks reported by clock(). */ 61163130Sceri#define CLOCKS_PER_SEC 128 62163130Sceri 63163130Sceri#ifndef _CLOCK_T_DECLARED 64163130Sceritypedef __clock_t clock_t; 65163130Sceri#define _CLOCK_T_DECLARED 66163130Sceri#endif 67163130Sceri 68163130Sceri#ifndef _TIME_T_DECLARED 69163130Sceritypedef __time_t time_t; 70163130Sceri#define _TIME_T_DECLARED 71163130Sceri#endif 72163130Sceri 73163130Sceri#ifndef _SIZE_T_DECLARED 74163130Sceritypedef __size_t size_t; 75163130Sceri#define _SIZE_T_DECLARED 76163130Sceri#endif 77163130Sceri 78163130Sceri#if __POSIX_VISIBLE >= 199309 79163130Sceri/* 80163130Sceri * New in POSIX 1003.1b-1993. 81163130Sceri */ 82163130Sceri#ifndef _CLOCKID_T_DECLARED 83163130Sceritypedef __clockid_t clockid_t; 84163130Sceri#define _CLOCKID_T_DECLARED 85163130Sceri#endif 86163130Sceri 87163130Sceri#ifndef _TIMER_T_DECLARED 88163130Sceritypedef __timer_t timer_t; 89163130Sceri#define _TIMER_T_DECLARED 90163130Sceri#endif 91163130Sceri 92163130Sceri#include <sys/timespec.h> 93163130Sceri#endif /* __POSIX_VISIBLE >= 199309 */ 94163130Sceri 95163156Sceri/* These macros are also in sys/time.h. */ 96163156Sceri#if !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112 97163156Sceri#define CLOCK_REALTIME 0 98163130Sceri#ifdef __BSD_VISIBLE 99163130Sceri#define CLOCK_VIRTUAL 1 100163130Sceri#define CLOCK_PROF 2 101163130Sceri#endif 102163130Sceri#define CLOCK_MONOTONIC 4 103163130Sceri#endif /* !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112 */ 104163130Sceri 105163130Sceri#if !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 200112 106#if __BSD_VISIBLE 107#define TIMER_RELTIME 0x0 /* relative timer */ 108#endif 109#define TIMER_ABSTIME 0x1 /* absolute timer */ 110#endif /* !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 200112 */ 111 112struct tm { 113 int tm_sec; /* seconds after the minute [0-60] */ 114 int tm_min; /* minutes after the hour [0-59] */ 115 int tm_hour; /* hours since midnight [0-23] */ 116 int tm_mday; /* day of the month [1-31] */ 117 int tm_mon; /* months since January [0-11] */ 118 int tm_year; /* years since 1900 */ 119 int tm_wday; /* days since Sunday [0-6] */ 120 int tm_yday; /* days since January 1 [0-365] */ 121 int tm_isdst; /* Daylight Savings Time flag */ 122 long tm_gmtoff; /* offset from UTC in seconds */ 123 char *tm_zone; /* timezone abbreviation */ 124}; 125 126#if __POSIX_VISIBLE 127extern char *tzname[]; 128#endif 129 130__BEGIN_DECLS 131char *asctime(const struct tm *); 132clock_t clock(void); 133char *ctime(const time_t *); 134double difftime(time_t, time_t); 135/* XXX missing: getdate() */ 136struct tm *gmtime(const time_t *); 137struct tm *localtime(const time_t *); 138time_t mktime(struct tm *); 139size_t strftime(char * __restrict, size_t, const char * __restrict, 140 const struct tm * __restrict); 141time_t time(time_t *); 142#if __POSIX_VISIBLE >= 200112 143struct sigevent; 144int timer_create(clockid_t, struct sigevent *__restrict, timer_t *__restrict); 145int timer_delete(timer_t); 146int timer_gettime(timer_t, struct itimerspec *); 147int timer_getoverrun(timer_t); 148int timer_settime(timer_t, int, const struct itimerspec *__restrict, 149 struct itimerspec *__restrict); 150#endif 151#if __POSIX_VISIBLE 152void tzset(void); 153#endif 154 155#if __POSIX_VISIBLE >= 199309 156int clock_getres(clockid_t, struct timespec *); 157int clock_gettime(clockid_t, struct timespec *); 158int clock_settime(clockid_t, const struct timespec *); 159/* XXX missing: clock_nanosleep() */ 160int nanosleep(const struct timespec *, struct timespec *); 161#endif /* __POSIX_VISIBLE >= 199309 */ 162 163#if __POSIX_VISIBLE >= 199506 164char *asctime_r(const struct tm *, char *); 165char *ctime_r(const time_t *, char *); 166struct tm *gmtime_r(const time_t *, struct tm *); 167struct tm *localtime_r(const time_t *, struct tm *); 168#endif 169 170#if __XSI_VISIBLE 171char *strptime(const char * __restrict, const char * __restrict, 172 struct tm * __restrict); 173#endif 174 175#if __BSD_VISIBLE 176char *timezone(int, int); /* XXX XSI conflict */ 177void tzsetwall(void); 178time_t timelocal(struct tm * const); 179time_t timegm(struct tm * const); 180#endif /* __BSD_VISIBLE */ 181__END_DECLS 182 183#endif /* !_TIME_H_ */ 184