86 lines
2.9 KiB
C
86 lines
2.9 KiB
C
/* $OpenBSD: _time.h,v 1.10 2022/10/25 16:30:30 millert Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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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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#ifndef _SYS__TIME_H_
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#define _SYS__TIME_H_
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/* Frequency of ticks reported by clock(). */
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#define CLOCKS_PER_SEC 100
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#if __BSD_VISIBLE
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/*
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* Per-process and per-thread clocks encode the PID or TID into the
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* high bits, with the type in the bottom bits
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*/
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#define __CLOCK_ENCODE(type,id) ((type) | ((id) << 12))
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#define __CLOCK_TYPE(c) ((c) & 0xfff)
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#define __CLOCK_PTID(c) (((c) >> 12) & 0xfffff)
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#endif
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#if __POSIX_VISIBLE >= 199309 || __ISO_C_VISIBLE >= 2011
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#ifndef _TIME_T_DEFINED_
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#define _TIME_T_DEFINED_
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typedef __time_t time_t;
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#endif
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#ifndef _TIMESPEC_DECLARED
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#define _TIMESPEC_DECLARED
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struct timespec {
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time_t tv_sec; /* seconds */
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long tv_nsec; /* and nanoseconds */
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};
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#endif
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#endif
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#if __POSIX_VISIBLE >= 199309
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#define CLOCK_REALTIME 0
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#define CLOCK_PROCESS_CPUTIME_ID 2
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#define CLOCK_MONOTONIC 3
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#define CLOCK_THREAD_CPUTIME_ID 4
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#define CLOCK_UPTIME 5
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#define CLOCK_BOOTTIME 6
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/*
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* Structure defined by POSIX 1003.1b to be like a itimerval,
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* but with timespecs. Used in the timer_*() system calls.
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*/
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struct itimerspec {
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struct timespec it_interval; /* timer interval */
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struct timespec it_value; /* timer expiration */
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};
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#define TIMER_RELTIME 0x0 /* relative timer */
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#define TIMER_ABSTIME 0x1 /* absolute timer */
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#endif
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#endif /* !_SYS__TIME_H_ */
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