xref: /illumos-gate/usr/src/uts/common/sys/sema_impl.h (revision dd72704bd9e794056c558153663c739e2012d721)
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 (c) 1993-1997 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 /*
28  * semaphore.h:
29  *
30  * definitions for thread synchronization primitives:
31  * mutexs, semaphores, condition variables, and readers/writer
32  * locks.
33  */
34 
35 #ifndef _SYS_SEMA_IMPL_H
36 #define	_SYS_SEMA_IMPL_H
37 
38 #ifndef	_ASM
39 #include <sys/types.h>
40 #include <sys/machlock.h>
41 #endif	/* _ASM */
42 
43 #ifdef	__cplusplus
44 extern "C" {
45 #endif
46 
47 #ifndef	_ASM
48 
49 /*
50  * Semaphores.
51  */
52 
53 typedef struct _sema_impl {
54 	struct _kthread	*s_slpq;
55 	int		s_count;
56 } sema_impl_t;
57 
58 #endif	/* _ASM */
59 
60 #ifdef	__cplusplus
61 }
62 #endif
63 
64 #endif	/* _SYS_SEMA_IMPL_H */
65