1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*
28 * Implementation-private.  This header should not be included
29 * directly by an application.  The application should instead
30 * include <time.h> which includes this header conditionally
31 * depending on which feature test macros are defined. By default,
32 * this header is included by <time.h>.  X/Open and POSIX
33 * standards requirements result in this header being included
34 * by <time.h> only under a restricted set of conditions.
35 */
36
37#ifndef _SYS_TIME_IMPL_H
38#define	_SYS_TIME_IMPL_H
39
40#include <sys/feature_tests.h>
41
42#ifdef	__cplusplus
43extern "C" {
44#endif
45
46#ifndef	_ASM
47
48#if !defined(_TIME_T) || __cplusplus >= 199711L
49#define	_TIME_T
50typedef	long	time_t;		/* time of day in seconds */
51#endif	/* _TIME_T */
52
53/*
54 * Time expressed in seconds and nanoseconds
55 */
56
57typedef struct  timespec {		/* definition per POSIX.4 */
58	time_t		tv_sec;		/* seconds */
59	long		tv_nsec;	/* and nanoseconds */
60} timespec_t;
61
62#if defined(_SYSCALL32)
63
64#include <sys/types32.h>
65
66#define	TIMESPEC32_TO_TIMESPEC(ts, ts32)	{	\
67	(ts)->tv_sec = (time_t)(ts32)->tv_sec;		\
68	(ts)->tv_nsec = (ts32)->tv_nsec;		\
69}
70
71#define	TIMESPEC_TO_TIMESPEC32(ts32, ts)	{	\
72	(ts32)->tv_sec = (time32_t)(ts)->tv_sec;	\
73	(ts32)->tv_nsec = (ts)->tv_nsec;		\
74}
75
76#define	TIMESPEC_OVERFLOW(ts)		\
77	((ts)->tv_sec < TIME32_MIN || (ts)->tv_sec > TIME32_MAX)
78
79#endif	/* _SYSCALL32 */
80
81typedef struct timespec timestruc_t;	/* definition per SVr4 */
82
83/*
84 * The following has been left in for backward compatibility. Portable
85 * applications should not use the structure name timestruc.
86 */
87
88#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
89#define	timestruc	timespec	/* structure name per SVr4 */
90#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
91
92/*
93 * Timer specification
94 */
95typedef struct itimerspec {		/* definition per POSIX.4 */
96	struct timespec	it_interval;	/* timer period */
97	struct timespec	it_value;	/* timer expiration */
98} itimerspec_t;
99
100#if defined(_SYSCALL32)
101
102#define	ITIMERSPEC32_TO_ITIMERSPEC(it, it32)	{	\
103	TIMESPEC32_TO_TIMESPEC(&(it)->it_interval, &(it32)->it_interval); \
104	TIMESPEC32_TO_TIMESPEC(&(it)->it_value, &(it32)->it_value);	\
105}
106
107#define	ITIMERSPEC_TO_ITIMERSPEC32(it32, it)	{	\
108	TIMESPEC_TO_TIMESPEC32(&(it32)->it_interval, &(it)->it_interval); \
109	TIMESPEC_TO_TIMESPEC32(&(it32)->it_value, &(it)->it_value);	\
110}
111
112#define	ITIMERSPEC_OVERFLOW(it)				\
113	(TIMESPEC_OVERFLOW(&(it)->it_interval) &&	\
114	TIMESPEC_OVERFLOW(&(it)->it_value))
115
116#endif	/* _SYSCALL32 */
117
118#endif	/* _ASM */
119
120#define	__CLOCK_REALTIME0	0	/* obsolete; same as CLOCK_REALTIME */
121#define	CLOCK_VIRTUAL		1	/* thread's user-level CPU clock */
122#define	CLOCK_THREAD_CPUTIME_ID	2	/* thread's user+system CPU clock */
123#define	CLOCK_REALTIME		3	/* wall clock */
124#define	CLOCK_MONOTONIC		4	/* high resolution monotonic clock */
125#define	CLOCK_PROCESS_CPUTIME_ID 5	/* process's user+system CPU clock */
126#define	CLOCK_HIGHRES		CLOCK_MONOTONIC		/* alternate name */
127#define	CLOCK_PROF		CLOCK_THREAD_CPUTIME_ID	/* alternate name */
128
129#ifdef _KERNEL
130#define	CLOCK_MAX		6
131#endif
132
133#define	TIMER_RELTIME	0x0		/* set timer relative */
134#define	TIMER_ABSTIME	0x1		/* set timer absolute */
135
136#ifdef	__cplusplus
137}
138#endif
139
140#endif	/* _SYS_TIME_IMPL_H */
141