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/* $OpenBSD: _time.h,v 1.9 2017/12/18 05:51:53 cheloha Exp $ */
/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* 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. 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.
*/
#ifndef _SYS__TIME_H_
#define _SYS__TIME_H_
#define CLOCK_REALTIME 0
#define CLOCK_PROCESS_CPUTIME_ID 2
#define CLOCK_MONOTONIC 3
#define CLOCK_THREAD_CPUTIME_ID 4
#define CLOCK_UPTIME 5
#define CLOCK_BOOTTIME 6
#if __BSD_VISIBLE
/*
* Per-process and per-thread clocks encode the PID or TID into the
* high bits, with the type in the bottom bits
*/
#define __CLOCK_ENCODE(type,id) ((type) | ((id) << 12))
#define __CLOCK_TYPE(c) ((c) & 0xfff)
#define __CLOCK_PTID(c) (((c) >> 12) & 0xfffff)
#endif
/*
* Structure defined by POSIX 1003.1b to be like a itimerval,
* but with timespecs. Used in the timer_*() system calls.
*/
struct itimerspec {
struct timespec it_interval; /* timer interval */
struct timespec it_value; /* timer expiration */
};
#define TIMER_RELTIME 0x0 /* relative timer */
#define TIMER_ABSTIME 0x1 /* absolute timer */
#endif /* !_SYS__TIME_H_ */
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