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	_SYS_SOBJECT_H
28#define	_SYS_SOBJECT_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include <sys/types.h>
33#include <sys/thread.h>
34
35#ifdef	__cplusplus
36extern "C" {
37#endif
38
39/*
40 * Type-number definitions for the various synchronization
41 * objects defined for the system. The numeric values
42 * assigned to the various definitions begin with zero, since
43 * the synch-object mapping array depends on these values.
44 */
45#define	SOBJ_NONE	0	/* undefined synchonization object */
46#define	SOBJ_MUTEX	1	/* mutex synchonization object */
47#define	SOBJ_RWLOCK	2	/* readers/writer synchonization object */
48#define	SOBJ_CV		3	/* cond. variable synchonization object */
49#define	SOBJ_SEMA	4	/* semaphore synchonization object */
50#define	SOBJ_USER	5	/* user-level synchronization object */
51#define	SOBJ_USER_PI	6	/* user-level sobj having Prio Inheritance */
52#define	SOBJ_SHUTTLE 	7	/* shuttle synchronization object */
53
54/*
55 * The following data structure is used to map
56 * synchronization object type numbers to the
57 * synchronization object's sleep queue number
58 * or the synch. object's owner function.
59 */
60typedef struct _sobj_ops {
61	int		sobj_type;
62	kthread_t	*(*sobj_owner)();
63	void		(*sobj_unsleep)(kthread_t *);
64	void		(*sobj_change_pri)(kthread_t *, pri_t, pri_t *);
65} sobj_ops_t;
66
67#ifdef	_KERNEL
68
69#define	SOBJ_TYPE(sobj_ops)		sobj_ops->sobj_type
70#define	SOBJ_OWNER(sobj_ops, sobj)	(*(sobj_ops->sobj_owner))(sobj)
71#define	SOBJ_UNSLEEP(sobj_ops, t)	(*(sobj_ops->sobj_unsleep))(t)
72#define	SOBJ_CHANGE_PRI(sobj_ops, t, pri)	\
73			(*(sobj_ops->sobj_change_pri))(t, pri, &t->t_pri)
74#define	SOBJ_CHANGE_EPRI(sobj_ops, t, pri)	\
75			(*(sobj_ops->sobj_change_pri))(t, pri, &t->t_epri)
76
77#endif	/* _KERNEL */
78
79#ifdef	__cplusplus
80}
81#endif
82
83#endif	/* _SYS_SOBJECT_H */
84