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3f8455b090
Add a clock_nanosleep() syscall, as specified by POSIX. Make nanosleep() a wrapper around it. Attach the clock_nanosleep test from NetBSD. Adjust it for the FreeBSD behavior of updating rmtp only when interrupted by a signal. I believe this to be POSIX-compliant, since POSIX mentions the rmtp parameter only in the paragraph about EINTR. This is also what Linux does. (NetBSD updates rmtp unconditionally.) Copy the whole nanosleep.2 man page from NetBSD because it is complete and closely resembles the POSIX description. Edit, polish, and reword it a bit, being sure to keep any relevant text from the FreeBSD page. Reviewed by: kib, ngie, jilles MFC after: 3 weeks Relnotes: yes Sponsored by: Dell EMC Differential Revision: https://reviews.freebsd.org/D10020
206 lines
6.5 KiB
C
206 lines
6.5 KiB
C
/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)time.h 8.3 (Berkeley) 1/21/94
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*/
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/*
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* $FreeBSD$
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*/
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#ifndef _TIME_H_
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#define _TIME_H_
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#include <sys/cdefs.h>
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#include <sys/_null.h>
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#include <sys/_types.h>
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#if __POSIX_VISIBLE > 0 && __POSIX_VISIBLE < 200112 || __BSD_VISIBLE
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/*
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* Frequency of the clock ticks reported by times(). Deprecated - use
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* sysconf(_SC_CLK_TCK) instead. (Removed in 1003.1-2001.)
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*/
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#define CLK_TCK 128
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#endif
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/* Frequency of the clock ticks reported by clock(). */
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#define CLOCKS_PER_SEC 128
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#ifndef _CLOCK_T_DECLARED
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typedef __clock_t clock_t;
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#define _CLOCK_T_DECLARED
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#endif
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#ifndef _TIME_T_DECLARED
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typedef __time_t time_t;
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#define _TIME_T_DECLARED
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#endif
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#ifndef _SIZE_T_DECLARED
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typedef __size_t size_t;
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#define _SIZE_T_DECLARED
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#endif
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#if __POSIX_VISIBLE >= 199309
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/*
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* New in POSIX 1003.1b-1993.
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*/
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#ifndef _CLOCKID_T_DECLARED
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typedef __clockid_t clockid_t;
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#define _CLOCKID_T_DECLARED
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#endif
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#ifndef _TIMER_T_DECLARED
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typedef __timer_t timer_t;
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#define _TIMER_T_DECLARED
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#endif
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#include <sys/timespec.h>
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#endif /* __POSIX_VISIBLE >= 199309 */
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#if __POSIX_VISIBLE >= 200112
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#ifndef _PID_T_DECLARED
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typedef __pid_t pid_t;
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#define _PID_T_DECLARED
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#endif
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#endif
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/* These macros are also in sys/time.h. */
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#if !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112
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#define CLOCK_REALTIME 0
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#ifdef __BSD_VISIBLE
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#define CLOCK_VIRTUAL 1
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#define CLOCK_PROF 2
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#endif
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#define CLOCK_MONOTONIC 4
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#define CLOCK_UPTIME 5 /* FreeBSD-specific. */
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#define CLOCK_UPTIME_PRECISE 7 /* FreeBSD-specific. */
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#define CLOCK_UPTIME_FAST 8 /* FreeBSD-specific. */
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#define CLOCK_REALTIME_PRECISE 9 /* FreeBSD-specific. */
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#define CLOCK_REALTIME_FAST 10 /* FreeBSD-specific. */
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#define CLOCK_MONOTONIC_PRECISE 11 /* FreeBSD-specific. */
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#define CLOCK_MONOTONIC_FAST 12 /* FreeBSD-specific. */
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#define CLOCK_SECOND 13 /* FreeBSD-specific. */
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#define CLOCK_THREAD_CPUTIME_ID 14
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#define CLOCK_PROCESS_CPUTIME_ID 15
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#endif /* !defined(CLOCK_REALTIME) && __POSIX_VISIBLE >= 200112 */
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#if !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 200112
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#if __BSD_VISIBLE
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#define TIMER_RELTIME 0x0 /* relative timer */
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#endif
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#define TIMER_ABSTIME 0x1 /* absolute timer */
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#endif /* !defined(TIMER_ABSTIME) && __POSIX_VISIBLE >= 200112 */
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struct tm {
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int tm_sec; /* seconds after the minute [0-60] */
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int tm_min; /* minutes after the hour [0-59] */
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int tm_hour; /* hours since midnight [0-23] */
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int tm_mday; /* day of the month [1-31] */
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int tm_mon; /* months since January [0-11] */
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int tm_year; /* years since 1900 */
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int tm_wday; /* days since Sunday [0-6] */
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int tm_yday; /* days since January 1 [0-365] */
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int tm_isdst; /* Daylight Savings Time flag */
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long tm_gmtoff; /* offset from UTC in seconds */
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char *tm_zone; /* timezone abbreviation */
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};
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#if __POSIX_VISIBLE
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extern char *tzname[];
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#endif
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__BEGIN_DECLS
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char *asctime(const struct tm *);
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clock_t clock(void);
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char *ctime(const time_t *);
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double difftime(time_t, time_t);
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/* XXX missing: getdate() */
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struct tm *gmtime(const time_t *);
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struct tm *localtime(const time_t *);
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time_t mktime(struct tm *);
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size_t strftime(char * __restrict, size_t, const char * __restrict,
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const struct tm * __restrict);
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time_t time(time_t *);
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#if __POSIX_VISIBLE >= 200112
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struct sigevent;
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int timer_create(clockid_t, struct sigevent *__restrict, timer_t *__restrict);
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int timer_delete(timer_t);
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int timer_gettime(timer_t, struct itimerspec *);
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int timer_getoverrun(timer_t);
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int timer_settime(timer_t, int, const struct itimerspec *__restrict,
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struct itimerspec *__restrict);
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#endif
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#if __POSIX_VISIBLE
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void tzset(void);
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#endif
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#if __POSIX_VISIBLE >= 199309
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int clock_getres(clockid_t, struct timespec *);
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int clock_gettime(clockid_t, struct timespec *);
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int clock_settime(clockid_t, const struct timespec *);
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int nanosleep(const struct timespec *, struct timespec *);
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#endif /* __POSIX_VISIBLE >= 199309 */
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#if __POSIX_VISIBLE >= 200112
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int clock_getcpuclockid(pid_t, clockid_t *);
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int clock_nanosleep(clockid_t, int, const struct timespec *, struct timespec *);
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#endif
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#if __POSIX_VISIBLE >= 199506
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char *asctime_r(const struct tm *, char *);
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char *ctime_r(const time_t *, char *);
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struct tm *gmtime_r(const time_t *, struct tm *);
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struct tm *localtime_r(const time_t *, struct tm *);
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#endif
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#if __XSI_VISIBLE
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char *strptime(const char * __restrict, const char * __restrict,
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struct tm * __restrict);
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#endif
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#if __BSD_VISIBLE
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char *timezone(int, int); /* XXX XSI conflict */
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void tzsetwall(void);
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time_t timelocal(struct tm * const);
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time_t timegm(struct tm * const);
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int timer_oshandle_np(timer_t timerid);
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#endif /* __BSD_VISIBLE */
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#if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_)
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#include <xlocale/_time.h>
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#endif
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__END_DECLS
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#endif /* !_TIME_H_ */
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