1 /* $NetBSD: kcondvar.h,v 1.6 2023/07/11 17:03:16 martin Exp $ */
2
3 /*-
4 * Copyright (c) 2009 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Doran.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #ifndef _OPENSOLARIS_SYS_KCONDVAR_H_
33 #define _OPENSOLARIS_SYS_KCONDVAR_H_
34
35 #include_next <sys/condvar.h>
36
37 #ifdef _KERNEL
38
39 typedef enum {
40 CV_DEFAULT,
41 CV_DRIVER
42 } kcv_type_t;
43
44 typedef enum {
45 TR_CLOCK_TICK,
46 } time_res_t;
47
48 #define cv_init(a, b, c, d) cv_init(a, #a)
49
50 static inline clock_t
cv_timedwait_hires(kcondvar_t * cvp,struct kmutex * mp,hrtime_t tim,hrtime_t res,int flag)51 cv_timedwait_hires(kcondvar_t *cvp, struct kmutex *mp, hrtime_t tim, hrtime_t res,
52 int flag)
53 {
54 extern int hz;
55 int ticks = ((uint64_t)tim * hz) / 1000000000;
56
57 return cv_timedwait(cvp, mp, ticks);
58 }
59
60 static inline clock_t
cv_reltimedwait(kcondvar_t * cvp,struct kmutex * mp,clock_t delta,time_res_t res)61 cv_reltimedwait(kcondvar_t *cvp, struct kmutex *mp, clock_t delta, time_res_t res)
62 {
63
64 cv_wait(cvp, mp);
65 return 0;
66 }
67
68 #else
69
70 extern clock_t cv_timedwait_hires(kcondvar_t *, struct kmutex *, hrtime_t, hrtime_t,
71 int);
72
73 #endif /* _KERNEL */
74
75 #endif /* _OPENSOLARIS_SYS_KCONDVAR_H_ */
76