1 /** $MirOS: src/sys/sys/resource.h,v 1.2 2005/03/06 21:28:34 tg Exp $ */ 2 /* $OpenBSD: resource.h,v 1.7 2003/12/11 23:02:30 millert Exp $ */ 3 /* $NetBSD: resource.h,v 1.14 1996/02/09 18:25:27 christos Exp $ */ 4 5 /* 6 * Copyright (c) 1982, 1986, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)resource.h 8.2 (Berkeley) 1/4/94 34 */ 35 36 #ifndef _SYS_RESOURCE_H_ 37 #define _SYS_RESOURCE_H_ 38 39 /* 40 * Process priority specifications to get/setpriority. 41 */ 42 #define PRIO_MIN -20 43 #define PRIO_MAX 20 44 45 #define PRIO_PROCESS 0 46 #define PRIO_PGRP 1 47 #define PRIO_USER 2 48 49 /* 50 * Resource utilization information. 51 */ 52 53 #define RUSAGE_SELF 0 54 #define RUSAGE_CHILDREN -1 55 56 struct rusage { 57 struct timeval ru_utime; /* user time used */ 58 struct timeval ru_stime; /* system time used */ 59 long ru_maxrss; /* max resident set size */ 60 #define ru_first ru_ixrss 61 long ru_ixrss; /* integral shared text memory size */ 62 long ru_idrss; /* integral unshared data " */ 63 long ru_isrss; /* integral unshared stack " */ 64 long ru_minflt; /* page reclaims */ 65 long ru_majflt; /* page faults */ 66 long ru_nswap; /* swaps */ 67 long ru_inblock; /* block input operations */ 68 long ru_oublock; /* block output operations */ 69 long ru_msgsnd; /* messages sent */ 70 long ru_msgrcv; /* messages received */ 71 long ru_nsignals; /* signals received */ 72 long ru_nvcsw; /* voluntary context switches */ 73 long ru_nivcsw; /* involuntary " */ 74 #define ru_last ru_nivcsw 75 }; 76 77 /* 78 * Resource limits 79 */ 80 #define RLIMIT_CPU 0 /* cpu time in milliseconds */ 81 #define RLIMIT_FSIZE 1 /* maximum file size */ 82 #define RLIMIT_DATA 2 /* data size */ 83 #define RLIMIT_STACK 3 /* stack size */ 84 #define RLIMIT_CORE 4 /* core file size */ 85 #define RLIMIT_RSS 5 /* resident set size */ 86 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ 87 #define RLIMIT_NPROC 7 /* number of processes */ 88 #define RLIMIT_NOFILE 8 /* number of open files */ 89 #define RLIMIT_TIME 9 /* user time */ 90 91 #define RLIM_NLIMITS 10 /* number of resource limits */ 92 93 #define RLIM_INFINITY (((rlim_t)1 << 63) - 1) 94 #define RLIM_SAVED_MAX RLIM_INFINITY 95 #define RLIM_SAVED_CUR RLIM_INFINITY 96 97 struct orlimit { 98 int32_t rlim_cur; /* current (soft) limit */ 99 int32_t rlim_max; /* maximum value for rlim_cur */ 100 }; 101 102 struct rlimit { 103 rlim_t rlim_cur; /* current (soft) limit */ 104 rlim_t rlim_max; /* maximum value for rlim_cur */ 105 }; 106 107 /* Load average structure. */ 108 struct loadavg { 109 fixpt_t ldavg[3]; 110 long fscale; 111 }; 112 113 #ifdef _KERNEL 114 extern struct loadavg averunnable; 115 int dosetrlimit(struct proc *, u_int, struct rlimit *); 116 int donice(struct proc *, struct proc *, int); 117 118 #else 119 #include <sys/cdefs.h> 120 121 __BEGIN_DECLS 122 int getpriority(int, id_t); 123 int getrlimit(int, struct rlimit *); 124 int getrusage(int, struct rusage *); 125 int setpriority(int, id_t, int); 126 int setrlimit(int, const struct rlimit *); 127 __END_DECLS 128 129 #endif /* _KERNEL */ 130 #endif /* !_SYS_RESOURCE_H_ */ 131