1/*-
 2 * SPDX-License-Identifier: BSD-2-Clause
 3 *
 4 * Copyright (c) 2021 Netflix, Inc.
 5 *
 6 * Redistribution and use in source and binary forms, with or without
 7 * modification, are permitted provided that the following conditions
 8 * are met:
 9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#ifndef _SYS_SYS__CLOCK_ID_H
29#define	_SYS_SYS__CLOCK_ID_H
30
31/*
32 * These macros are shared between time.h and sys/time.h.
33 */
34
35/*
36 * Note: The values shown below as a comment for the __POSIX_VISIBLE values are
37 * the ones FreeBSD traditionally used based on our reading of the POSIX
38 * standards. However, glibc uses 199309 for all of them, even those many were
39 * not defined there. To remain bug compatible with glibc means more software
40 * that relied on the glibc behavior will compile easily on FreeBSD.
41 *
42 * Also, CLOCK_UPTIME_FAST is improperly visible temporarily for the lang/pocl
43 * port until it can be updated properly. It incorrectly assumes that this was a
44 * standard value. It will be moved back to the __BSD_VISIBLE section once the
45 * issue is corrected.
46 */
47
48#if __POSIX_VISIBLE >= 199309		/* 199506 */
49#define CLOCK_REALTIME		0
50#endif /* __POSIX_VISIBLE >= 199309 */
51#ifdef __BSD_VISIBLE
52#define CLOCK_VIRTUAL		1
53#define CLOCK_PROF		2
54#endif /* __BSD_VISIBLE */
55#if __POSIX_VISIBLE >= 199309		/* 200112 */
56#define CLOCK_MONOTONIC		4
57#define CLOCK_UPTIME_FAST	8
58#endif /* __POSIX_VISIBLE >= 199309 */
59#ifdef __BSD_VISIBLE
60/*
61 * FreeBSD-specific clocks.
62 */
63#define CLOCK_UPTIME		5
64#define CLOCK_UPTIME_PRECISE	7
65#define CLOCK_REALTIME_PRECISE	9
66#define CLOCK_REALTIME_FAST	10
67#define CLOCK_MONOTONIC_PRECISE	11
68#define CLOCK_MONOTONIC_FAST	12
69#define CLOCK_SECOND		13
70#endif /* __BSD_VISIBLE */
71
72#if __POSIX_VISIBLE >= 199309		/* 200112 */
73#define CLOCK_THREAD_CPUTIME_ID	14
74#define	CLOCK_PROCESS_CPUTIME_ID 15
75#endif /* __POSIX_VISIBLE >= 199309 */
76
77/*
78 * Linux compatible names.
79 */
80#if __BSD_VISIBLE
81#define	CLOCK_BOOTTIME		CLOCK_UPTIME
82#define	CLOCK_REALTIME_COARSE	CLOCK_REALTIME_FAST
83#define	CLOCK_MONOTONIC_COARSE	CLOCK_MONOTONIC_FAST
84#endif
85
86#if __BSD_VISIBLE
87#define TIMER_RELTIME	0x0	/* relative timer */
88#endif
89#if __POSIX_VISIBLE >= 199309
90#define TIMER_ABSTIME	0x1	/* absolute timer */
91#endif /* __POSIX_VISIBLE >= 199309 */
92
93#endif /* _SYS_SYS__CLOCK_ID_H */