1 /* 2 * Copyright (c) 1982, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)resource.h 8.4 (Berkeley) 1/9/95 30 * $FreeBSD: src/sys/sys/resource.h,v 1.12.2.2 2002/08/20 18:42:20 dillon Exp $ 31 */ 32 33 #ifndef _SYS_RESOURCE_H_ 34 #define _SYS_RESOURCE_H_ 35 36 #include <sys/cdefs.h> 37 #ifndef _SYS_TYPES_H_ 38 #include <sys/types.h> 39 #endif 40 #include <sys/_timeval.h> 41 42 /* 43 * Process priority specifications to get/setpriority. 44 */ 45 #define PRIO_MIN -20 46 #define PRIO_MAX 20 47 48 #if __BSD_VISIBLE 49 #define IOPRIO_MIN 1 50 #define IOPRIO_MAX 10 51 #endif 52 53 #define PRIO_PROCESS 0 54 #define PRIO_PGRP 1 55 #define PRIO_USER 2 56 57 /* 58 * Resource utilization information. 59 */ 60 61 #define RUSAGE_SELF 0 62 #define RUSAGE_CHILDREN -1 63 64 struct rusage { 65 struct timeval ru_utime; /* user time used */ 66 struct timeval ru_stime; /* system time used */ 67 long ru_maxrss; /* max resident set size */ 68 #define ru_first ru_ixrss 69 long ru_ixrss; /* integral shared memory size */ 70 long ru_idrss; /* integral unshared data " */ 71 long ru_isrss; /* integral unshared stack " */ 72 long ru_minflt; /* page reclaims */ 73 long ru_majflt; /* page faults */ 74 long ru_nswap; /* swaps */ 75 long ru_inblock; /* block input operations */ 76 long ru_oublock; /* block output operations */ 77 long ru_msgsnd; /* messages sent */ 78 long ru_msgrcv; /* messages received */ 79 long ru_nsignals; /* signals received */ 80 long ru_nvcsw; /* voluntary context switches */ 81 long ru_nivcsw; /* involuntary " */ 82 #define ru_last ru_nivcsw 83 }; 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_VMEM 10 /* virtual process size (inclusive of mmap) */ 99 #define RLIMIT_AS RLIMIT_VMEM /* standard name for address space size */ 100 #define RLIMIT_POSIXLOCKS 11 /* maximum number of POSIX locks per user */ 101 102 #define RLIM_NLIMITS 12 /* number of resource limits */ 103 104 #define RLIM_INFINITY ((rlim_t)(((u_quad_t)1 << 63) - 1)) /* no limit */ 105 #define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */ 106 #define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */ 107 108 /* 109 * Resource limit string identifiers 110 */ 111 #ifdef _RLIMIT_IDENT 112 static char *rlimit_ident[] = { 113 "cpu", 114 "fsize", 115 "data", 116 "stack", 117 "core", 118 "rss", 119 "memlock", 120 "nproc", 121 "nofile", 122 "sbsize", 123 "vmem", 124 "posixlock", 125 }; 126 #endif 127 128 struct rlimit { 129 rlim_t rlim_cur; /* current (soft) limit */ 130 rlim_t rlim_max; /* maximum value for rlim_cur */ 131 }; 132 133 #if __BSD_VISIBLE 134 struct orlimit { 135 int32_t rlim_cur; /* current (soft) limit */ 136 int32_t rlim_max; /* maximum value for rlim_cur */ 137 }; 138 139 struct loadavg { 140 fixpt_t ldavg[3]; 141 long fscale; 142 }; 143 144 /* 145 * CPU state fields as reported by the sysctl kern.cp_time 146 */ 147 #define CP_USER 0 148 #define CP_NICE 1 149 #define CP_SYS 2 150 #define CP_INTR 3 151 #define CP_IDLE 4 152 #define CPUSTATES 5 153 #endif /* __BSD_VISIBLE */ 154 155 #ifdef _KERNEL 156 extern struct loadavg averunnable; 157 158 int dosetrlimit(u_int which, struct rlimit *limp); 159 #else 160 __BEGIN_DECLS 161 int getpriority(int, int); 162 int getrlimit(int, struct rlimit *); 163 int getrusage(int, struct rusage *); 164 int setpriority(int, int, int); 165 int setrlimit(int, const struct rlimit *); 166 #if __BSD_VISIBLE 167 int ioprio_get(int, int); 168 int ioprio_set(int, int, int); 169 #endif 170 __END_DECLS 171 #endif /* _KERNEL */ 172 173 #endif /* !_SYS_RESOURCE_H_ */ 174