xref: /illumos-gate/usr/src/uts/common/sys/rtpriocntl.h (revision bbf21555)
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) 1997-2001 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved	*/
29 
30 
31 #ifndef _SYS_RTPRIOCNTL_H
32 #define	_SYS_RTPRIOCNTL_H
33 
34 #include <sys/types.h>
35 #include <sys/thread.h>
36 
37 #ifdef	__cplusplus
38 extern "C" {
39 #endif
40 
41 /*
42  * Real-time class specific structures for the priocntl system call.
43  */
44 
45 typedef struct rtparms {
46 	pri_t	rt_pri;		/* real-time priority */
47 	uint_t	rt_tqsecs;	/* seconds in time quantum */
48 	int	rt_tqnsecs;	/* additional nanosecs in time quant */
49 } rtparms_t;
50 
51 
52 typedef struct rtinfo {
53 	pri_t	rt_maxpri;	/* maximum configured real-time priority */
54 } rtinfo_t;
55 
56 
57 #define	RT_NOCHANGE	-1
58 #define	RT_TQINF	-2
59 #define	RT_TQDEF	-3
60 
61 /*
62  * Real-time class specific keys for the priocntl system call varargs interface.
63  */
64 #define	RT_KY_PRI	1	/* real-time priority */
65 #define	RT_KY_TQSECS	2	/* seconds in time quantum */
66 #define	RT_KY_TQNSECS	3	/* nanoseconds in time quantum */
67 #define	RT_KY_TQSIG	4	/* real-time time quantum signal */
68 
69 /*
70  * The following is used by the dispadmin(8) command for
71  * scheduler administration and is not for general use.
72  */
73 
74 #ifdef _SYSCALL32
75 /* Data structure for ILP32 clients */
76 typedef struct rtadmin32 {
77 	caddr32_t	rt_dpents;
78 	int16_t		rt_ndpents;
79 	int16_t		rt_cmd;
80 } rtadmin32_t;
81 #endif /* _SYSCALL32 */
82 
83 typedef struct rtadmin {
84 	struct rtdpent	*rt_dpents;
85 	short		rt_ndpents;
86 	short		rt_cmd;
87 } rtadmin_t;
88 
89 #define	RT_GETDPSIZE	1
90 #define	RT_GETDPTBL	2
91 #define	RT_SETDPTBL	3
92 
93 #ifdef	__cplusplus
94 }
95 #endif
96 
97 #endif	/* _SYS_RTPRIOCNTL_H */
98