1/*-
2 * Copyright (c) 2010, David Xu <davidxu@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice unmodified, this list of conditions, and the following
10 *    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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 *
28 */
29
30#ifndef _SYS__UMTX_H_
31#define	_SYS__UMTX_H_
32
33#include <sys/_types.h>
34#include <sys/_timespec.h>
35
36struct umtx {
37	volatile unsigned long	u_owner;	/* Owner of the mutex. */
38};
39
40struct umutex {
41	volatile __lwpid_t	m_owner;	/* Owner of the mutex */
42	__uint32_t		m_flags;	/* Flags of the mutex */
43	__uint32_t		m_ceilings[2];	/* Priority protect ceiling */
44	__uint32_t		m_spare[4];
45};
46
47struct ucond {
48	volatile __uint32_t	c_has_waiters;	/* Has waiters in kernel */
49	__uint32_t		c_flags;	/* Flags of the condition variable */
50	__uint32_t              c_clockid;	/* Clock id */
51	__uint32_t              c_spare[1];	/* Spare space */
52};
53
54struct urwlock {
55	volatile __int32_t	rw_state;
56	__uint32_t		rw_flags;
57	__uint32_t		rw_blocked_readers;
58	__uint32_t		rw_blocked_writers;
59	__uint32_t		rw_spare[4];
60};
61
62struct _usem {
63	volatile __uint32_t	_has_waiters;
64	volatile __uint32_t	_count;
65	__uint32_t		_flags;
66};
67
68struct _umtx_time {
69	struct timespec		_timeout;
70	__uint32_t		_flags;
71	__uint32_t		_clockid;
72};
73
74#endif /* !_SYS__UMTX_H_ */
75