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 1.10 2008/06/18 09:36:07 hasso 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 #include <sys/_timeval.h> 45 46 /* 47 * Process priority specifications to get/setpriority. 48 */ 49 #define PRIO_MIN -20 50 #define PRIO_MAX 20 51 52 #define PRIO_PROCESS 0 53 #define PRIO_PGRP 1 54 #define PRIO_USER 2 55 56 /* 57 * Resource utilization information. 58 */ 59 60 #define RUSAGE_SELF 0 61 #define RUSAGE_CHILDREN -1 62 63 struct rusage { 64 struct timeval ru_utime; /* user time used */ 65 struct timeval ru_stime; /* system time used */ 66 long ru_maxrss; /* max resident set size */ 67 #define ru_first ru_ixrss 68 long ru_ixrss; /* integral shared memory size */ 69 long ru_idrss; /* integral unshared data " */ 70 long ru_isrss; /* integral unshared stack " */ 71 long ru_minflt; /* page reclaims */ 72 long ru_majflt; /* page faults */ 73 long ru_nswap; /* swaps */ 74 long ru_inblock; /* block input operations */ 75 long ru_oublock; /* block output operations */ 76 long ru_msgsnd; /* messages sent */ 77 long ru_msgrcv; /* messages received */ 78 long ru_nsignals; /* signals received */ 79 long ru_nvcsw; /* voluntary context switches */ 80 long ru_nivcsw; /* involuntary " */ 81 #define ru_last ru_nivcsw 82 }; 83 84 /* 85 * Resource limits 86 */ 87 #define RLIMIT_CPU 0 /* cpu time in milliseconds */ 88 #define RLIMIT_FSIZE 1 /* maximum file size */ 89 #define RLIMIT_DATA 2 /* data size */ 90 #define RLIMIT_STACK 3 /* stack size */ 91 #define RLIMIT_CORE 4 /* core file size */ 92 #define RLIMIT_RSS 5 /* resident set size */ 93 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ 94 #define RLIMIT_NPROC 7 /* number of processes */ 95 #define RLIMIT_NOFILE 8 /* number of open files */ 96 #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */ 97 #define RLIMIT_VMEM 10 /* virtual process size (inclusive of mmap) */ 98 #define RLIMIT_AS RLIMIT_VMEM /* standard name for address space size */ 99 #define RLIMIT_POSIXLOCKS 11 /* maximum number of POSIX locks per user */ 100 101 #define RLIM_NLIMITS 12 /* number of resource limits */ 102 103 #define RLIM_INFINITY ((rlim_t)(((u_quad_t)1 << 63) - 1)) 104 105 106 /* 107 * Resource limit string identifiers 108 */ 109 110 #ifdef _RLIMIT_IDENT 111 static char *rlimit_ident[] = { 112 "cpu", 113 "fsize", 114 "data", 115 "stack", 116 "core", 117 "rss", 118 "memlock", 119 "nproc", 120 "nofile", 121 "sbsize", 122 "vmem", 123 "posixlock", 124 }; 125 #endif 126 127 struct orlimit { 128 int32_t rlim_cur; /* current (soft) limit */ 129 int32_t rlim_max; /* maximum value for rlim_cur */ 130 }; 131 132 struct rlimit { 133 rlim_t rlim_cur; /* current (soft) limit */ 134 rlim_t rlim_max; /* maximum value for rlim_cur */ 135 }; 136 137 /* Load average structure. */ 138 struct loadavg { 139 fixpt_t ldavg[3]; 140 long fscale; 141 }; 142 143 #ifdef _KERNEL 144 extern struct loadavg averunnable; 145 146 int dosetrlimit (u_int which, struct rlimit *limp); 147 148 #else 149 #include <sys/cdefs.h> 150 151 __BEGIN_DECLS 152 int getpriority (int, int); 153 int getrlimit (int, struct rlimit *); 154 int getrusage (int, struct rusage *); 155 int setpriority (int, int, int); 156 int setrlimit (int, const struct rlimit *); 157 __END_DECLS 158 159 #endif /* _KERNEL */ 160 #endif /* !_SYS_RESOURCE_H_ */ 161