priocntl.h revision 6247:ad4c702ff226
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 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 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 83typedef 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 89typedef struct pcparms { 90 id_t pc_cid; /* process class */ 91 int pc_clparms[PC_CLPARMSZ]; /* class specific parameters */ 92} pcparms_t; 93 94typedef struct pcnice { 95 int pc_val; /* nice value */ 96 int pc_op; /* type of operation, set or get */ 97} pcnice_t; 98 99typedef 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 114typedef struct pc_vaparm { 115 int pc_key; /* describing key */ 116 u_longlong_t pc_parm; /* associated parameter */ 117} pc_vaparm_t; 118 119typedef 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 133typedef struct { 134 int32_t pc_key; /* describing key */ 135 uint64_t pc_parm; /* associated parameter */ 136} pc_vaparm32_t; 137 138#pragma pack() 139 140typedef 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 152typedef 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 */ 165typedef struct pcadmin32 { 166 id32_t pc_cid; 167 caddr32_t pc_cladmin; 168} pcadmin32_t; 169#endif /* _SYSCALL32 */ 170 171typedef 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 */ 181