xref: /illumos-gate/usr/src/uts/common/sys/rt.h (revision b4203d75)
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 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28 /*	  All Rights Reserved	*/
29 
30 
31 #ifndef _SYS_RT_H
32 #define	_SYS_RT_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 dispatcher parameter table entry
43  */
44 typedef struct	rtdpent {
45 	pri_t	rt_globpri;	/* global (class independent) priority */
46 	int	rt_quantum;	/* default quantum associated with this level */
47 } rtdpent_t;
48 
49 /*
50  * Real-time class specific proc structure
51  */
52 typedef struct rtproc {
53 	int		rt_pquantum;	/* time quantum given to this proc */
54 	int		rt_timeleft;	/* time remaining in procs quantum */
55 	pri_t		rt_pri;		/* priority within rt class */
56 	ushort_t	rt_flags;	/* flags defined below */
57 	int		rt_tqsignal;	/* time quantum signal */
58 	kthread_id_t	rt_tp;		/* pointer to thread */
59 	struct rtproc	*rt_next;	/* link to next rtproc on list */
60 	struct rtproc	*rt_prev;	/* link to previous rtproc on list */
61 } rtproc_t;
62 
63 
64 /* Flags */
65 #define	RTBACKQ	0x0002		/* proc goes to back of disp q when preempted */
66 
67 
68 #ifdef _KERNEL
69 /*
70  * Kernel version of real-time class specific parameter structure
71  */
72 typedef struct	rtkparms {
73 	pri_t	rt_pri;
74 	int	rt_tqntm;
75 	int	rt_tqsig;	/* real-time time quantum signal */
76 	uint_t	rt_cflags;	/* real-time control flags */
77 } rtkparms_t;
78 #endif	/* _KERNEL */
79 
80 #ifdef	__cplusplus
81 }
82 #endif
83 
84 #endif	/* _SYS_RT_H */
85