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 1.8 2004/07/27 19:18:50 drhodus Exp $ 36 */ 37 38 #ifndef _SYS_RESOURCE_H_ 39 #define _SYS_RESOURCE_H_ 40 41 /* 42 * Process priority specifications to get/setpriority. 43 */ 44 #define PRIO_MIN -20 45 #define PRIO_MAX 20 46 47 #define PRIO_PROCESS 0 48 #define PRIO_PGRP 1 49 #define PRIO_USER 2 50 51 /* 52 * Resource utilization information. 53 */ 54 55 #define RUSAGE_SELF 0 56 #define RUSAGE_CHILDREN -1 57 58 struct rusage { 59 struct timeval ru_utime; /* user time used */ 60 struct timeval ru_stime; /* system time used */ 61 long ru_maxrss; /* max resident set size */ 62 #define ru_first ru_ixrss 63 long ru_ixrss; /* integral shared memory size */ 64 long ru_idrss; /* integral unshared data " */ 65 long ru_isrss; /* integral unshared stack " */ 66 long ru_minflt; /* page reclaims */ 67 long ru_majflt; /* page faults */ 68 long ru_nswap; /* swaps */ 69 long ru_inblock; /* block input operations */ 70 long ru_oublock; /* block output operations */ 71 long ru_msgsnd; /* messages sent */ 72 long ru_msgrcv; /* messages received */ 73 long ru_nsignals; /* signals received */ 74 long ru_nvcsw; /* voluntary context switches */ 75 long ru_nivcsw; /* involuntary " */ 76 #define ru_last ru_nivcsw 77 }; 78 79 /* 80 * Resource limits 81 */ 82 #define RLIMIT_CPU 0 /* cpu time in milliseconds */ 83 #define RLIMIT_FSIZE 1 /* maximum file size */ 84 #define RLIMIT_DATA 2 /* data size */ 85 #define RLIMIT_STACK 3 /* stack size */ 86 #define RLIMIT_CORE 4 /* core file size */ 87 #define RLIMIT_RSS 5 /* resident set size */ 88 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ 89 #define RLIMIT_NPROC 7 /* number of processes */ 90 #define RLIMIT_NOFILE 8 /* number of open files */ 91 #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */ 92 #define RLIMIT_VMEM 10 /* virtual process size (inclusive of mmap) */ 93 #define RLIMIT_POSIXLOCKS 11 /* maximum number of POSIX locks per user */ 94 95 #define RLIM_NLIMITS 12 /* number of resource limits */ 96 97 #define RLIM_INFINITY ((rlim_t)(((u_quad_t)1 << 63) - 1)) 98 99 100 /* 101 * Resource limit string identifiers 102 */ 103 104 #ifdef _RLIMIT_IDENT 105 static char *rlimit_ident[] = { 106 "cpu", 107 "fsize", 108 "data", 109 "stack", 110 "core", 111 "rss", 112 "memlock", 113 "nproc", 114 "nofile", 115 "sbsize", 116 "vmem", 117 "posixlock", 118 }; 119 #endif 120 121 struct orlimit { 122 int32_t rlim_cur; /* current (soft) limit */ 123 int32_t rlim_max; /* maximum value for rlim_cur */ 124 }; 125 126 struct rlimit { 127 rlim_t rlim_cur; /* current (soft) limit */ 128 rlim_t rlim_max; /* maximum value for rlim_cur */ 129 }; 130 131 /* Load average structure. */ 132 struct loadavg { 133 fixpt_t ldavg[3]; 134 long fscale; 135 }; 136 137 #ifdef _KERNEL 138 extern struct loadavg averunnable; 139 140 int dosetrlimit (u_int which, struct rlimit *limp); 141 142 #else 143 #include <sys/cdefs.h> 144 145 __BEGIN_DECLS 146 int getpriority (int, int); 147 int getrlimit (int, struct rlimit *); 148 int getrusage (int, struct rusage *); 149 int setpriority (int, int, int); 150 int setrlimit (int, const struct rlimit *); 151 __END_DECLS 152 153 #endif /* _KERNEL */ 154 #endif /* !_SYS_RESOURCE_H_ */ 155