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 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef	_FMD_TIME_H
28#define	_FMD_TIME_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include <sys/types.h>
33
34#ifdef	__cplusplus
35extern "C" {
36#endif
37
38typedef struct fmd_timeval {
39	uint64_t ftv_sec;	/* seconds since gettimeofday(3C) Epoch */
40	uint64_t ftv_nsec;	/* nanoseconds past value of ftv_sec */
41} fmd_timeval_t;
42
43typedef struct fmd_timeops {
44	void *(*fto_init)(void);
45	void (*fto_fini)(void *);
46	int (*fto_gettimeofday)(struct timeval *, void *);
47	hrtime_t (*fto_gethrtime)(void);
48	void (*fto_addhrtime)(hrtime_t);
49	void (*fto_waithrtime)(hrtime_t);
50	void (*fto_waitcancel)(pthread_t);
51} fmd_timeops_t;
52
53typedef struct fmd_timesim {
54	pthread_mutex_t fts_lock; /* lock protecting contents of fmd_timesim */
55	pthread_cond_t fts_cv;	/* condition variable for timerq wait */
56	hrtime_t fts_tod;	/* time-of-day nsec corresponding to hrt=0 */
57	hrtime_t fts_hrt;	/* hrtime clock in simulated universe */
58	uint_t fts_cancel;	/* count of pending fto_waitcancel()s */
59} fmd_timesim_t;
60
61extern const fmd_timeops_t fmd_timeops_native;
62extern const fmd_timeops_t fmd_timeops_simulated;
63
64extern void fmd_time_gettimeofday(struct timeval *);
65extern hrtime_t fmd_time_gethrtime(void);
66extern void fmd_time_addhrtime(hrtime_t);
67extern void fmd_time_waithrtime(hrtime_t);
68extern void fmd_time_waitcancel(pthread_t);
69extern void fmd_time_sync(fmd_timeval_t *, hrtime_t *, uint_t);
70
71extern void fmd_time_hrt2tod(hrtime_t, const fmd_timeval_t *,
72    hrtime_t, fmd_timeval_t *);
73
74extern void fmd_time_tod2hrt(hrtime_t, const fmd_timeval_t *,
75    const fmd_timeval_t *, hrtime_t *);
76
77extern hrtime_t fmd_time_ena2hrt(hrtime_t, uint64_t);
78
79#ifdef	__cplusplus
80}
81#endif
82
83#endif	/* _FMD_TIME_H */
84