time.h revision 1.19
1/* $NetBSD: time.h,v 1.19 1998/07/27 11:08:38 mycroft Exp $ */ 2 3/* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * (c) UNIX System Laboratories, Inc. 7 * All or some portions of this file are derived from material licensed 8 * to the University of California by American Telephone and Telegraph 9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 10 * the permission of UNIX System Laboratories, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)time.h 8.3 (Berkeley) 1/21/94 41 */ 42 43#ifndef _TIME_H_ 44#define _TIME_H_ 45 46#include <sys/cdefs.h> 47#include <machine/ansi.h> 48 49#ifndef NULL 50#define NULL 0 51#endif 52 53#ifdef _BSD_CLOCK_T_ 54typedef _BSD_CLOCK_T_ clock_t; 55#undef _BSD_CLOCK_T_ 56#endif 57 58#ifdef _BSD_TIME_T_ 59typedef _BSD_TIME_T_ time_t; 60#undef _BSD_TIME_T_ 61#endif 62 63#ifdef _BSD_SIZE_T_ 64typedef _BSD_SIZE_T_ size_t; 65#undef _BSD_SIZE_T_ 66#endif 67 68#ifdef _BSD_CLOCKID_T_ 69typedef _BSD_CLOCKID_T_ clockid_t; 70#undef _BSD_CLOCKID_T_ 71#endif 72 73#ifdef _BSD_TIMER_T_ 74typedef _BSD_TIMER_T_ timer_t; 75#undef _BSD_TIMER_T_ 76#endif 77 78#define CLOCKS_PER_SEC 100 79 80struct tm { 81 int tm_sec; /* seconds after the minute [0-61] */ 82 int tm_min; /* minutes after the hour [0-59] */ 83 int tm_hour; /* hours since midnight [0-23] */ 84 int tm_mday; /* day of the month [1-31] */ 85 int tm_mon; /* months since January [0-11] */ 86 int tm_year; /* years since 1900 */ 87 int tm_wday; /* days since Sunday [0-6] */ 88 int tm_yday; /* days since January 1 [0-365] */ 89 int tm_isdst; /* Daylight Savings Time flag */ 90 long tm_gmtoff; /* offset from CUT in seconds */ 91 __aconst char *tm_zone; /* timezone abbreviation */ 92}; 93 94#include <machine/limits.h> /* Include file containing CLK_TCK. */ 95 96#include <sys/cdefs.h> 97 98__BEGIN_DECLS 99char *asctime __P((const struct tm *)); 100clock_t clock __P((void)); 101char *ctime __P((const time_t *)); 102double difftime __P((time_t, time_t)); 103struct tm *gmtime __P((const time_t *)); 104struct tm *localtime __P((const time_t *)); 105time_t mktime __P((struct tm *)); 106size_t strftime __P((char *, size_t, const char *, const struct tm *)); 107time_t time __P((time_t *)); 108 109#if !defined(_ANSI_SOURCE) 110#define CLK_TCK 100 111extern __aconst char *tzname[2]; 112void tzset __P((void)); 113#endif /* not ANSI */ 114 115#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) 116char *strptime __P((const char *, const char *, struct tm *)); 117char *timezone __P((int, int)); 118void tzsetwall __P((void)); 119struct tm *offtime __P((const time_t *const, const long)); 120time_t timelocal __P((struct tm *const)); 121time_t timegm __P((struct tm *const)); 122time_t timeoff __P((struct tm *const, const long)); 123long gtime __P((struct tm *const)); 124time_t time2posix __P((time_t)); 125time_t posix2time __P((time_t)); 126#endif /* neither ANSI nor POSIX */ 127 128#if (!defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) && \ 129 !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) || \ 130 ((_POSIX_C_SOURCE - 0) >= 199309L) 131#include <sys/time.h> /* for struct timespec */ 132struct sigevent; 133struct itimerspec; 134int clock_getres __P((clockid_t, struct timespec *)); 135int clock_gettime __P((clockid_t, struct timespec *)); 136int clock_settime __P((clockid_t, const struct timespec *)); 137int nanosleep __P((const struct timespec *, struct timespec *)); 138int timer_create __P((clockid_t, struct sigevent *, timer_t *)); 139int timer_delete __P((timer_t)); 140int timer_getoverrun __P((timer_t)); 141int timer_gettime __P((timer_t, struct itimerspec *)); 142int timer_settime __P((timer_t, int, const struct itimerspec *, 143 struct itimerspec *)); 144#endif 145__END_DECLS 146 147#endif /* !_TIME_H_ */ 148