1 /* $NetBSD: resource.h,v 1.34 2016/04/02 20:38:40 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)resource.h 8.4 (Berkeley) 1/9/95 32 */ 33 34 #ifndef _SYS_RESOURCE_H_ 35 #define _SYS_RESOURCE_H_ 36 37 #include <sys/featuretest.h> 38 #include <sys/time.h> 39 40 /* 41 * Process priority specifications to get/setpriority. 42 */ 43 #define PRIO_MIN -20 44 #define PRIO_MAX 20 45 46 #define PRIO_PROCESS 0 47 #define PRIO_PGRP 1 48 #define PRIO_USER 2 49 50 /* 51 * Resource utilization information. 52 */ 53 54 #define RUSAGE_SELF 0 55 #define RUSAGE_CHILDREN -1 56 57 struct rusage { 58 struct timeval ru_utime; /* user time used */ 59 struct timeval ru_stime; /* system time used */ 60 long ru_maxrss; /* max resident set size */ 61 #define ru_first ru_ixrss 62 long ru_ixrss; /* integral shared memory size */ 63 long ru_idrss; /* integral unshared data " */ 64 long ru_isrss; /* integral unshared stack " */ 65 long ru_minflt; /* page reclaims */ 66 long ru_majflt; /* page faults */ 67 long ru_nswap; /* swaps */ 68 long ru_inblock; /* block input operations */ 69 long ru_oublock; /* block output operations */ 70 long ru_msgsnd; /* messages sent */ 71 long ru_msgrcv; /* messages received */ 72 long ru_nsignals; /* signals received */ 73 long ru_nvcsw; /* voluntary context switches */ 74 long ru_nivcsw; /* involuntary " */ 75 #define ru_last ru_nivcsw 76 }; 77 78 #ifdef _NETBSD_SOURCE 79 struct wrusage { 80 struct rusage wru_self; 81 struct rusage wru_children; 82 }; 83 #endif 84 85 /* 86 * Resource limits 87 */ 88 #define RLIMIT_CPU 0 /* cpu time in milliseconds */ 89 #define RLIMIT_FSIZE 1 /* maximum file size */ 90 #define RLIMIT_DATA 2 /* data size */ 91 #define RLIMIT_STACK 3 /* stack size */ 92 #define RLIMIT_CORE 4 /* core file size */ 93 #define RLIMIT_RSS 5 /* resident set size */ 94 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ 95 #define RLIMIT_NPROC 7 /* number of processes */ 96 #define RLIMIT_NOFILE 8 /* number of open files */ 97 #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */ 98 #define RLIMIT_AS 10 /* virtual process size (inclusive of mmap) */ 99 #define RLIMIT_VMEM RLIMIT_AS /* common alias */ 100 #define RLIMIT_NTHR 11 /* number of threads */ 101 102 #if defined(_NETBSD_SOURCE) 103 #define RLIM_NLIMITS 12 /* number of resource limits */ 104 #endif 105 106 #define RLIM_INFINITY (~((u_quad_t)1 << 63)) /* no limit */ 107 #define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */ 108 #define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */ 109 110 #if defined(_KERNEL) 111 /* 4.3BSD compatibility rlimit argument structure. */ 112 struct orlimit { 113 int32_t rlim_cur; /* current (soft) limit */ 114 int32_t rlim_max; /* maximum value for rlim_cur */ 115 }; 116 #endif 117 118 struct rlimit { 119 rlim_t rlim_cur; /* current (soft) limit */ 120 rlim_t rlim_max; /* maximum value for rlim_cur */ 121 }; 122 123 #if defined(_NETBSD_SOURCE) 124 /* Load average structure. */ 125 struct loadavg { 126 fixpt_t ldavg[3]; 127 long fscale; 128 }; 129 #endif 130 131 #ifdef _KERNEL 132 extern struct loadavg averunnable; 133 struct pcred; 134 int dosetrlimit(struct lwp *, struct proc *, int, struct rlimit *); 135 #else 136 #include <sys/cdefs.h> 137 138 __BEGIN_DECLS 139 int getpriority(int, id_t); 140 int getrlimit(int, struct rlimit *); 141 #ifndef __LIBC12_SOURCE__ 142 int getrusage(int, struct rusage *) __RENAME(__getrusage50); 143 #endif 144 int setpriority(int, id_t, int); 145 int setrlimit(int, const struct rlimit *); 146 __END_DECLS 147 148 #endif /* _KERNEL */ 149 #endif /* !_SYS_RESOURCE_H_ */ 150