xref: /illumos-gate/usr/src/uts/common/sys/sema_impl.h (revision 581cede61ac9c14d8d4ea452562a567189eead78)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
39 
40 #ifndef	_ASM
41 #include <sys/types.h>
42 #include <sys/machlock.h>
43 #endif	/* _ASM */
44 
45 #ifdef	__cplusplus
46 extern "C" {
47 #endif
48 
49 #ifndef	_ASM
50 
51 /*
52  * Semaphores.
53  */
54 
55 typedef struct _sema_impl {
56 	struct _kthread	*s_slpq;
57 	int		s_count;
58 } sema_impl_t;
59 
60 #endif	/* _ASM */
61 
62 #ifdef	__cplusplus
63 }
64 #endif
65 
66 #endif	/* _SYS_SEMA_IMPL_H */
67