4be7a2dcf3
by the application, all NetBSD interfaces are made visible, even if some other feature-test macro (like _POSIX_C_SOURCE) is defined. <sys/featuretest.h> defined _NETBSD_SOURCE if none of _ANSI_SOURCE, _POSIX_C_SOURCE and _XOPEN_SOURCE is defined, so as to preserve existing behaviour. This has two major advantages: + Programs that require non-POSIX facilities but define _POSIX_C_SOURCE can trivially be overruled by putting -D_NETBSD_SOURCE in their CFLAGS. + It makes most of the #ifs simpler, in that they're all now ORs of the various macros, rather than having checks for (!defined(_ANSI_SOURCE) || !defined(_POSIX_C_SOURCE) || !defined(_XOPEN_SOURCE)) all over the place. I've tried not to change the semantics of the headers in any case where _NETBSD_SOURCE wasn't defined, but there were some places where the current semantics were clearly mad, and retaining them was harder than correcting them. In particular, I've mostly normalised things so that _ANSI_SOURCE gets you the smallest set of stuff, then _POSIX_C_SOURCE, _XOPEN_SOURCE and _NETBSD_SOURCE in that order. Tested by building for vax, encouraged by thorpej, and uncontested in tech-userlevel for a week.
179 lines
6.0 KiB
C
179 lines
6.0 KiB
C
/* $NetBSD: time.h,v 1.30 2003/04/28 23:16:15 bjh21 Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1989, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
* (c) UNIX System Laboratories, Inc.
|
|
* All or some portions of this file are derived from material licensed
|
|
* to the University of California by American Telephone and Telegraph
|
|
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
|
|
* the permission of UNIX System Laboratories, Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)time.h 8.3 (Berkeley) 1/21/94
|
|
*/
|
|
|
|
#ifndef _TIME_H_
|
|
#define _TIME_H_
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/featuretest.h>
|
|
#include <machine/ansi.h>
|
|
|
|
#include <sys/null.h>
|
|
|
|
#ifdef _BSD_CLOCK_T_
|
|
typedef _BSD_CLOCK_T_ clock_t;
|
|
#undef _BSD_CLOCK_T_
|
|
#endif
|
|
|
|
#ifdef _BSD_TIME_T_
|
|
typedef _BSD_TIME_T_ time_t;
|
|
#undef _BSD_TIME_T_
|
|
#endif
|
|
|
|
#ifdef _BSD_SIZE_T_
|
|
typedef _BSD_SIZE_T_ size_t;
|
|
#undef _BSD_SIZE_T_
|
|
#endif
|
|
|
|
#ifdef _BSD_CLOCKID_T_
|
|
typedef _BSD_CLOCKID_T_ clockid_t;
|
|
#undef _BSD_CLOCKID_T_
|
|
#endif
|
|
|
|
#ifdef _BSD_TIMER_T_
|
|
typedef _BSD_TIMER_T_ timer_t;
|
|
#undef _BSD_TIMER_T_
|
|
#endif
|
|
|
|
#define CLOCKS_PER_SEC 100
|
|
|
|
struct tm {
|
|
int tm_sec; /* seconds after the minute [0-61] */
|
|
int tm_min; /* minutes after the hour [0-59] */
|
|
int tm_hour; /* hours since midnight [0-23] */
|
|
int tm_mday; /* day of the month [1-31] */
|
|
int tm_mon; /* months since January [0-11] */
|
|
int tm_year; /* years since 1900 */
|
|
int tm_wday; /* days since Sunday [0-6] */
|
|
int tm_yday; /* days since January 1 [0-365] */
|
|
int tm_isdst; /* Daylight Savings Time flag */
|
|
long tm_gmtoff; /* offset from UTC in seconds */
|
|
__aconst char *tm_zone; /* timezone abbreviation */
|
|
};
|
|
|
|
__BEGIN_DECLS
|
|
char *asctime __P((const struct tm *));
|
|
clock_t clock __P((void));
|
|
char *ctime __P((const time_t *));
|
|
double difftime __P((time_t, time_t));
|
|
struct tm *gmtime __P((const time_t *));
|
|
struct tm *localtime __P((const time_t *));
|
|
time_t mktime __P((struct tm *));
|
|
size_t strftime __P((char * __restrict, size_t, const char * __restrict,
|
|
const struct tm * __restrict));
|
|
time_t time __P((time_t *));
|
|
|
|
#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
|
|
defined(_NETBSD_SOURCE)
|
|
|
|
#ifdef __LIBC12_SOURCE__
|
|
#define CLK_TCK 100
|
|
#else
|
|
|
|
/*
|
|
* CLK_TCK uses libc's internal __sysconf() to retrieve the machine's
|
|
* HZ. The value of _SC_CLK_TCK is 39 -- we hard code it so we do not
|
|
* need to include unistd.h
|
|
*/
|
|
long __sysconf __P((int));
|
|
#define CLK_TCK (__sysconf(39))
|
|
|
|
#endif
|
|
|
|
extern __aconst char *tzname[2];
|
|
void tzset __P((void));
|
|
|
|
/*
|
|
* X/Open Portability Guide >= Issue 4
|
|
*/
|
|
#if (_XOPEN_SOURCE - 0) >= 4 || defined(_NETBSD_SOURCE)
|
|
extern int daylight;
|
|
#ifndef __LIBC12_SOURCE__
|
|
extern long int timezone __RENAME(__timezone13);
|
|
#endif
|
|
char *strptime __P((const char * __restrict, const char * __restrict,
|
|
struct tm * __restrict));
|
|
#endif
|
|
|
|
#if (_POSIX_C_SOURCE - 0) >= 199309L || (_XOPEN_SOURCE - 0) >= 500 || \
|
|
defined(_NETBSD_SOURCE)
|
|
#include <sys/time.h> /* XXX for struct timespec */
|
|
struct sigevent;
|
|
struct itimerspec;
|
|
int clock_getres __P((clockid_t, struct timespec *));
|
|
int clock_gettime __P((clockid_t, struct timespec *));
|
|
int clock_settime __P((clockid_t, const struct timespec *));
|
|
int nanosleep __P((const struct timespec *, struct timespec *));
|
|
int timer_create __P((clockid_t, struct sigevent *, timer_t *));
|
|
int timer_delete __P((timer_t));
|
|
int timer_getoverrun __P((timer_t));
|
|
int timer_gettime __P((timer_t, struct itimerspec *));
|
|
int timer_settime __P((timer_t, int, const struct itimerspec *,
|
|
struct itimerspec *));
|
|
#endif /* _POSIX_C_SOURCE >= 199309 || _XOPEN_SOURCE >= 500 || ... */
|
|
|
|
#if (_POSIX_C_SOURCE - 0) >= 199506L || (_XOPEN_SOURCE - 0) >= 500 || \
|
|
defined(_REENTRANT) || defined(_NETBSD_SOURCE)
|
|
char *asctime_r __P((const struct tm * __restrict, char * __restrict));
|
|
char *ctime_r __P((const time_t *, char *));
|
|
struct tm *gmtime_r __P((const time_t * __restrict, struct tm * __restrict));
|
|
struct tm *localtime_r __P((const time_t * __restrict, struct tm * __restrict));
|
|
#endif
|
|
|
|
#if defined(_NETBSD_SOURCE)
|
|
time_t time2posix __P((time_t));
|
|
time_t posix2time __P((time_t));
|
|
time_t timegm __P((struct tm *const));
|
|
time_t timeoff __P((struct tm *const, const long));
|
|
time_t timelocal __P((struct tm *const));
|
|
#ifdef __LIBC12_SOURCE__
|
|
char *timezone __P((int, int));
|
|
#endif
|
|
void tzsetwall __P((void));
|
|
struct tm *offtime __P((const time_t *const, const long));
|
|
#endif /* _NETBSD_SOURCE */
|
|
|
|
#endif /* !_ANSI_SOURCE */
|
|
__END_DECLS
|
|
|
|
#endif /* !_TIME_H_ */
|