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 (the "License").
6 * You may not use this file except in compliance with the License.
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 /*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 #include "lint.h"
28 #include <synch.h>
29 #include <time.h>
30 #include <errno.h>
31 #include <sys/syscall.h>
32
33 #define SUBSYS_lwp_rwlock_rdlock 0
34 #define SUBSYS_lwp_rwlock_wrlock 1
35 #define SUBSYS_lwp_rwlock_tryrdlock 2
36 #define SUBSYS_lwp_rwlock_trywrlock 3
37 #define SUBSYS_lwp_rwlock_unlock 4
38
39 int
__lwp_rwlock_rdlock(rwlock_t * rwl,timespec_t * tsp)40 __lwp_rwlock_rdlock(rwlock_t *rwl, timespec_t *tsp)
41 {
42 sysret_t rval;
43 int error;
44
45 error = __systemcall(&rval, SYS_lwp_rwlock_sys,
46 SUBSYS_lwp_rwlock_rdlock, rwl, tsp);
47 if (error == ERESTART)
48 error = EINTR;
49
50 return (error);
51 }
52
53 int
__lwp_rwlock_wrlock(rwlock_t * rwl,timespec_t * tsp)54 __lwp_rwlock_wrlock(rwlock_t *rwl, timespec_t *tsp)
55 {
56 sysret_t rval;
57 int error;
58
59 error = __systemcall(&rval, SYS_lwp_rwlock_sys,
60 SUBSYS_lwp_rwlock_wrlock, rwl, tsp);
61 if (error == ERESTART)
62 error = EINTR;
63
64 return (error);
65 }
66
67 int
__lwp_rwlock_tryrdlock(rwlock_t * rwl)68 __lwp_rwlock_tryrdlock(rwlock_t *rwl)
69 {
70 sysret_t rval;
71 int error;
72
73 error = __systemcall(&rval, SYS_lwp_rwlock_sys,
74 SUBSYS_lwp_rwlock_tryrdlock, rwl);
75 if (error == ERESTART)
76 error = EINTR;
77
78 return (error);
79 }
80
81 int
__lwp_rwlock_trywrlock(rwlock_t * rwl)82 __lwp_rwlock_trywrlock(rwlock_t *rwl)
83 {
84 sysret_t rval;
85 int error;
86
87 error = __systemcall(&rval, SYS_lwp_rwlock_sys,
88 SUBSYS_lwp_rwlock_trywrlock, rwl);
89 if (error == ERESTART)
90 error = EINTR;
91
92 return (error);
93 }
94
95 int
__lwp_rwlock_unlock(rwlock_t * rwl)96 __lwp_rwlock_unlock(rwlock_t *rwl)
97 {
98 sysret_t rval;
99 int error;
100
101 error = __systemcall(&rval, SYS_lwp_rwlock_sys,
102 SUBSYS_lwp_rwlock_unlock, rwl);
103 if (error == ERESTART)
104 error = EINTR;
105
106 return (error);
107 }
108