synch.h (7c478bd95313f5f23a4c958a745db2134aa03244) synch.h (41efec2219526a9b3ecce26f97aba761ef1e1d0d)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
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.
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance 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 */
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
22/*
23 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _SYNCH_H
28#define _SYNCH_H
29
30#pragma ident "%Z%%M% %I% %E% SMI"
31

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76 * Readers/writer locks
77 *
78 * NOTE: The layout of this structure should be kept in sync with the layout
79 * of the correponding structure of pthread_rwlock_t in sys/types.h.
80 * Also, there is an identical structure for lwp_rwlock_t in <sys/synch.h>.
81 * Because we have to deal with C++, we cannot redefine this one as that one.
82 */
83typedef struct _rwlock {
24 * Use is subject to license terms.
25 */
26
27#ifndef _SYNCH_H
28#define _SYNCH_H
29
30#pragma ident "%Z%%M% %I% %E% SMI"
31

--- 44 unchanged lines hidden (view full) ---

76 * Readers/writer locks
77 *
78 * NOTE: The layout of this structure should be kept in sync with the layout
79 * of the correponding structure of pthread_rwlock_t in sys/types.h.
80 * Also, there is an identical structure for lwp_rwlock_t in <sys/synch.h>.
81 * Because we have to deal with C++, we cannot redefine this one as that one.
82 */
83typedef struct _rwlock {
84 int32_t readers; /* -1 == writer else # of readers */
84 int32_t readers; /* rwstate word */
85 uint16_t type;
86 uint16_t magic;
85 uint16_t type;
86 uint16_t magic;
87 mutex_t mutex; /* used to indicate ownership */
88 cond_t readercv; /* unused */
89 cond_t writercv; /* unused */
87 mutex_t mutex; /* used with process-shared rwlocks */
88 cond_t readercv; /* used only to indicate ownership */
89 cond_t writercv; /* used only to indicate ownership */
90} rwlock_t;
91
92#ifdef __STDC__
93int _lwp_mutex_lock(lwp_mutex_t *);
94int _lwp_mutex_unlock(lwp_mutex_t *);
95int _lwp_mutex_trylock(lwp_mutex_t *);
96int _lwp_cond_wait(lwp_cond_t *, lwp_mutex_t *);
97int _lwp_cond_timedwait(lwp_cond_t *, lwp_mutex_t *, timespec_t *);

--- 167 unchanged lines hidden --- 		90} rwlock_t;
91
92#ifdef __STDC__
93int _lwp_mutex_lock(lwp_mutex_t *);
94int _lwp_mutex_unlock(lwp_mutex_t *);
95int _lwp_mutex_trylock(lwp_mutex_t *);
96int _lwp_cond_wait(lwp_cond_t *, lwp_mutex_t *);
97int _lwp_cond_timedwait(lwp_cond_t *, lwp_mutex_t *, timespec_t *);

--- 167 unchanged lines hidden ---