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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. 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 8.4 (Berkeley) 1/9/95 34 * $FreeBSD: src/sys/sys/resource.h,v 1.12.2.2 2002/08/20 18:42:20 dillon Exp $ 35 * $DragonFly: src/sys/sys/resource.h,v 1.9 2006/05/20 02:42:13 dillon Exp $ 36 */ 37 38 #ifndef _SYS_RESOURCE_H_ 39 #define _SYS_RESOURCE_H_ 40 41 #ifndef _SYS_TYPES_H_ 42 #include <sys/types.h> 43 #endif 44 #ifndef _SYS_TIME_H_ 45 #include <sys/time.h> 46 #endif 47 48 /* 49 * Process priority specifications to get/setpriority. 50 */ 51 #define PRIO_MIN -20 52 #define PRIO_MAX 20 53 54 #define PRIO_PROCESS 0 55 #define PRIO_PGRP 1 56 #define PRIO_USER 2 57 58 /* 59 * Resource utilization information. 60 */ 61 62 #define RUSAGE_SELF 0 63 #define RUSAGE_CHILDREN -1 64 65 struct rusage { 66 struct timeval ru_utime; /* user time used */ 67 struct timeval ru_stime; /* system time used */ 68 long ru_maxrss; /* max resident set size */ 69 #define ru_first ru_ixrss 70 long ru_ixrss; /* integral shared memory size */ 71 long ru_idrss; /* integral unshared data " */ 72 long ru_isrss; /* integral unshared stack " */ 73 long ru_minflt; /* page reclaims */ 74 long ru_majflt; /* page faults */ 75 long ru_nswap; /* swaps */ 76 long ru_inblock; /* block input operations */ 77 long ru_oublock; /* block output operations */ 78 long ru_msgsnd; /* messages sent */ 79 long ru_msgrcv; /* messages received */ 80 long ru_nsignals; /* signals received */ 81 long ru_nvcsw; /* voluntary context switches */ 82 long ru_nivcsw; /* involuntary " */ 83 #define ru_last ru_nivcsw 84 }; 85 86 /* 87 * Resource limits 88 */ 89 #define RLIMIT_CPU 0 /* cpu time in milliseconds */ 90 #define RLIMIT_FSIZE 1 /* maximum file size */ 91 #define RLIMIT_DATA 2 /* data size */ 92 #define RLIMIT_STACK 3 /* stack size */ 93 #define RLIMIT_CORE 4 /* core file size */ 94 #define RLIMIT_RSS 5 /* resident set size */ 95 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ 96 #define RLIMIT_NPROC 7 /* number of processes */ 97 #define RLIMIT_NOFILE 8 /* number of open files */ 98 #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */ 99 #define RLIMIT_VMEM 10 /* virtual process size (inclusive of mmap) */ 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)) 105 106 107 /* 108 * Resource limit string identifiers 109 */ 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 orlimit { 129 int32_t rlim_cur; /* current (soft) limit */ 130 int32_t rlim_max; /* maximum value for rlim_cur */ 131 }; 132 133 struct rlimit { 134 rlim_t rlim_cur; /* current (soft) limit */ 135 rlim_t rlim_max; /* maximum value for rlim_cur */ 136 }; 137 138 /* Load average structure. */ 139 struct loadavg { 140 fixpt_t ldavg[3]; 141 long fscale; 142 }; 143 144 #ifdef _KERNEL 145 extern struct loadavg averunnable; 146 147 int dosetrlimit (u_int which, struct rlimit *limp); 148 149 #else 150 #include <sys/cdefs.h> 151 152 __BEGIN_DECLS 153 int getpriority (int, int); 154 int getrlimit (int, struct rlimit *); 155 int getrusage (int, struct rusage *); 156 int setpriority (int, int, int); 157 int setrlimit (int, const struct rlimit *); 158 __END_DECLS 159 160 #endif /* _KERNEL */ 161 #endif /* !_SYS_RESOURCE_H_ */ 162