priocntl.h revision 2248:4609e8bb25ad 
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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23/*	  All Rights Reserved  	*/
24
25/*
26 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
27 * Use is subject to license terms.
28 */
29
30#ifndef _SYS_PRIOCNTL_H
31#define	_SYS_PRIOCNTL_H
32
33#pragma ident	"%Z%%M%	%I%	%E% SMI"	/* from SVR4 1.6 */
34
35#include <sys/types.h>
36#include <sys/procset.h>
37
38#ifdef	__cplusplus
39extern "C" {
40#endif
41
42#define	PC_VERSION	1	/* First version of priocntl */
43
44#ifdef __STDC__
45extern long	priocntl(idtype_t, id_t, int, ...);
46extern long	priocntlset(procset_t *, int, ...);
47#else
48extern long	priocntl(), priocntlset();
49#endif	/* __STDC__ */
50
51/*
52 * The following are the possible values of the command
53 * argument for the priocntl system call.
54 */
55
56#define	PC_GETCID	0	/* Get class ID */
57#define	PC_GETCLINFO	1	/* Get info about a configured class */
58#define	PC_SETPARMS	2	/* Set scheduling parameters */
59#define	PC_GETPARMS	3	/* Get scheduling parameters */
60#define	PC_ADMIN	4	/* Scheduler administration (used by */
61				/*   dispadmin(1M), not for general use) */
62#define	PC_GETPRIRANGE	5	/* Get global priority range for a class */
63				/* posix.4 scheduling, not for general use */
64#define	PC_DONICE	6	/* Set or get nice value */
65#define	PC_SETXPARMS	7	/* Set extended scheduling parameters */
66#define	PC_GETXPARMS	8	/* Get extended scheduling parameters */
67#define	PC_SETDFLCL	9	/* Set default class, not for general use */
68
69#define	PC_CLNULL	-1
70
71#define	PC_CLNMSZ	16
72#define	PC_CLINFOSZ	(32 / sizeof (int))
73#define	PC_CLPARMSZ	(32 / sizeof (int))
74
75#define	PC_GETNICE	0
76#define	PC_SETNICE	1
77
78typedef struct pcinfo {
79	id_t	pc_cid;			/* class id */
80	char	pc_clname[PC_CLNMSZ];	/* class name */
81	int	pc_clinfo[PC_CLINFOSZ];	/* class information */
82} pcinfo_t;
83
84typedef struct pcparms {
85	id_t	pc_cid;			    /* process class */
86	int	pc_clparms[PC_CLPARMSZ];    /* class specific parameters */
87} pcparms_t;
88
89typedef struct pcnice {
90	int	pc_val;			/* nice value */
91	int	pc_op;			/* type of operation, set or get */
92} pcnice_t;
93
94/*
95 * The following is used by the priocntl(2) varargs interface (command
96 * codes: PC_SETXPARMS and PC_GETXPARMS).
97 */
98
99#define	PC_VAPARMCNT	8	/* maximal number of (key, value) pairs */
100#define	PC_KY_NULL	0	/* terminates the (key, value) pair chain */
101#define	PC_KY_CLNAME	1	/* get the class name of a process or LWP. */
102
103typedef	struct pc_vaparm {
104	int		pc_key;		/* describing key */
105	u_longlong_t	pc_parm;	/* associated parameter */
106} pc_vaparm_t;
107
108typedef	struct pc_vaparms {
109	uint_t		pc_vaparmscnt;		/* # of (key, value) pairs */
110	pc_vaparm_t	pc_parms[PC_VAPARMCNT];	/* parameter buffer */
111} pc_vaparms_t;
112
113#if defined(_SYSCALL32) && \
114	_LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
115
116/*
117 * These structures are needed by the 64-bit kernel on certain architectures
118 * to translate pc_vaparms_t/pc_vaparm_t data structures from 32-bit userland.
119 */
120#pragma pack(4)
121
122typedef struct {
123	int32_t		pc_key;		/* describing key */
124	uint64_t	pc_parm;	/* associated parameter */
125} pc_vaparm32_t;
126
127#pragma pack()
128
129typedef struct {
130	uint32_t	pc_vaparmscnt;		/* # of (key, value) pairs */
131	pc_vaparm32_t	pc_parms[PC_VAPARMCNT];	/* parameter buffer */
132} pc_vaparms32_t;
133
134#endif	/* _SYSCALL32 && ... */
135
136/*
137 * The following is used by libc for posix.4
138 * scheduler interfaces and is not for general use.
139 */
140
141typedef struct pcpri {
142	id_t	pc_cid;			/* process class */
143	pri_t	pc_clpmax;		/* class global priority max */
144	pri_t	pc_clpmin;		/* class global priority min */
145} pcpri_t;
146
147/*
148 * The following is used by the dispadmin(1M) command for
149 * scheduler administration and is not for general use.
150 */
151
152#ifdef _SYSCALL32
153/* Data structure for ILP32 clients */
154typedef struct pcadmin32 {
155	id32_t		pc_cid;
156	caddr32_t	pc_cladmin;
157} pcadmin32_t;
158#endif	/* _SYSCALL32 */
159
160typedef struct pcadmin {
161	id_t	pc_cid;
162	caddr_t	pc_cladmin;
163} pcadmin_t;
164
165#ifdef	__cplusplus
166}
167#endif
168
169#endif	/* _SYS_PRIOCNTL_H */
170