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 /*
23 * Copyright 2008 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 #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
39 extern "C" {
40 #endif
41
42 #define PC_VERSION 1 /* First version of priocntl */
43
44 #ifdef __STDC__
45 extern long priocntl(idtype_t, id_t, int, ...);
46 extern long priocntlset(procset_t *, int, ...);
47 #else
48 extern 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 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 #define PC_GETDFLCL 10 /* Get default class, not for general use */
69 #define PC_DOPRIO 11 /* Set or get priority, not for general use */
70
71 #define PC_CLNULL -1
72
73 #define PC_CLNMSZ 16
74 #define PC_CLINFOSZ (32 / sizeof (int))
75 #define PC_CLPARMSZ (32 / sizeof (int))
76
77 #define PC_GETNICE 0
78 #define PC_SETNICE 1
79
80 #define PC_GETPRIO 0
81 #define PC_SETPRIO 1
82
83 typedef struct pcinfo {
84 id_t pc_cid; /* class id */
85 char pc_clname[PC_CLNMSZ]; /* class name */
86 int pc_clinfo[PC_CLINFOSZ]; /* class information */
87 } pcinfo_t;
88
89 typedef struct pcparms {
90 id_t pc_cid; /* process class */
91 int pc_clparms[PC_CLPARMSZ]; /* class specific parameters */
92 } pcparms_t;
93
94 typedef struct pcnice {
95 int pc_val; /* nice value */
96 int pc_op; /* type of operation, set or get */
97 } pcnice_t;
98
99 typedef struct pcprio {
100 int pc_op; /* type of operation, set or get */
101 id_t pc_cid; /* class id */
102 int pc_val; /* priority value */
103 } pcprio_t;
104
105 /*
106 * The following is used by the priocntl(2) varargs interface (command
107 * codes: PC_SETXPARMS and PC_GETXPARMS).
108 */
109
110 #define PC_VAPARMCNT 8 /* maximal number of (key, value) pairs */
111 #define PC_KY_NULL 0 /* terminates the (key, value) pair chain */
112 #define PC_KY_CLNAME 1 /* get the class name of a process or LWP. */
113
114 typedef struct pc_vaparm {
115 int pc_key; /* describing key */
116 u_longlong_t pc_parm; /* associated parameter */
117 } pc_vaparm_t;
118
119 typedef struct pc_vaparms {
120 uint_t pc_vaparmscnt; /* # of (key, value) pairs */
121 pc_vaparm_t pc_parms[PC_VAPARMCNT]; /* parameter buffer */
122 } pc_vaparms_t;
123
124 #if defined(_SYSCALL32) && \
125 _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
126
127 /*
128 * These structures are needed by the 64-bit kernel on certain architectures
129 * to translate pc_vaparms_t/pc_vaparm_t data structures from 32-bit userland.
130 */
131 #pragma pack(4)
132
133 typedef struct {
134 int32_t pc_key; /* describing key */
135 uint64_t pc_parm; /* associated parameter */
136 } pc_vaparm32_t;
137
138 #pragma pack()
139
140 typedef struct {
141 uint32_t pc_vaparmscnt; /* # of (key, value) pairs */
142 pc_vaparm32_t pc_parms[PC_VAPARMCNT]; /* parameter buffer */
143 } pc_vaparms32_t;
144
145 #endif /* _SYSCALL32 && ... */
146
147 /*
148 * The following is used by libc for posix.4
149 * scheduler interfaces and is not for general use.
150 */
151
152 typedef struct pcpri {
153 id_t pc_cid; /* process class */
154 pri_t pc_clpmax; /* class priority max */
155 pri_t pc_clpmin; /* class priority min */
156 } pcpri_t;
157
158 /*
159 * The following is used by the dispadmin(1M) command for
160 * scheduler administration and is not for general use.
161 */
162
163 #ifdef _SYSCALL32
164 /* Data structure for ILP32 clients */
165 typedef struct pcadmin32 {
166 id32_t pc_cid;
167 caddr32_t pc_cladmin;
168 } pcadmin32_t;
169 #endif /* _SYSCALL32 */
170
171 typedef struct pcadmin {
172 id_t pc_cid;
173 caddr_t pc_cladmin;
174 } pcadmin_t;
175
176 #ifdef __cplusplus
177 }
178 #endif
179
180 #endif /* _SYS_PRIOCNTL_H */