xref: /onnv-gate/usr/src/head/schedctl.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 1996-2003 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #ifndef	_SCHEDCTL_H
28*0Sstevel@tonic-gate #define	_SCHEDCTL_H
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate #ifdef __cplusplus
33*0Sstevel@tonic-gate extern "C" {
34*0Sstevel@tonic-gate #endif
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate #include <sys/schedctl.h>
37*0Sstevel@tonic-gate 
38*0Sstevel@tonic-gate typedef sc_public_t schedctl_t;
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate extern void yield(void);
41*0Sstevel@tonic-gate 
42*0Sstevel@tonic-gate #define	schedctl_start(p)					\
43*0Sstevel@tonic-gate 		(void) (((p) == NULL)? 0 :			\
44*0Sstevel@tonic-gate 		((((schedctl_t *)(p))->sc_nopreempt = 1), 0))
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate #define	schedctl_stop(p)					\
47*0Sstevel@tonic-gate 		(void) (((p) == NULL)? 0 :			\
48*0Sstevel@tonic-gate 		((((schedctl_t *)(p))->sc_nopreempt = 0),	\
49*0Sstevel@tonic-gate 		(((schedctl_t *)(p))->sc_yield? (yield(), 0) : 0)))
50*0Sstevel@tonic-gate 
51*0Sstevel@tonic-gate /*
52*0Sstevel@tonic-gate  * libsched API
53*0Sstevel@tonic-gate  */
54*0Sstevel@tonic-gate #if	defined(__STDC__)
55*0Sstevel@tonic-gate schedctl_t	*schedctl_init(void);
56*0Sstevel@tonic-gate schedctl_t	*schedctl_lookup(void);
57*0Sstevel@tonic-gate void		schedctl_exit(void);
58*0Sstevel@tonic-gate #else
59*0Sstevel@tonic-gate schedctl_t	*schedctl_init();
60*0Sstevel@tonic-gate schedctl_t	*schedctl_lookup();
61*0Sstevel@tonic-gate void		schedctl_exit();
62*0Sstevel@tonic-gate #endif	/* __STDC__ */
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate #ifdef __cplusplus
65*0Sstevel@tonic-gate }
66*0Sstevel@tonic-gate #endif
67*0Sstevel@tonic-gate 
68*0Sstevel@tonic-gate #endif	/* _SCHEDCTL_H */
69