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 #include <machine/stdint.h> 38 #include <sys/_timeval.h> 39 40 /* XXX not used by our {get,set}priority(), defined here for XSI conformance */ 41 #ifndef _ID_T_DECLARED 42 #define _ID_T_DECLARED 43 typedef __int64_t id_t; /* general id, can hold gid/pid/uid_t */ 44 #endif 45 46 #ifndef _RLIM_T_DECLARED 47 #define _RLIM_T_DECLARED 48 typedef __rlim_t rlim_t; /* resource limit */ 49 #endif 50 51 /* 52 * Process priority specifications to get/setpriority. 53 */ 54 #define PRIO_MIN -20 55 #define PRIO_MAX 20 56 57 #if __BSD_VISIBLE 58 #define IOPRIO_MIN 1 59 #define IOPRIO_MAX 10 60 #endif 61 62 #define PRIO_PROCESS 0 63 #define PRIO_PGRP 1 64 #define PRIO_USER 2 65 66 /* 67 * Resource utilization information. 68 */ 69 #define RUSAGE_SELF 0 70 #define RUSAGE_CHILDREN -1 71 72 struct rusage { 73 struct timeval ru_utime; /* user time used */ 74 struct timeval ru_stime; /* system time used */ 75 long ru_maxrss; /* max resident set size */ 76 #define ru_first ru_ixrss 77 long ru_ixrss; /* integral shared memory size */ 78 long ru_idrss; /* integral unshared data " */ 79 long ru_isrss; /* integral unshared stack " */ 80 long ru_minflt; /* page reclaims */ 81 long ru_majflt; /* page faults */ 82 long ru_nswap; /* swaps */ 83 long ru_inblock; /* block input operations */ 84 long ru_oublock; /* block output operations */ 85 long ru_msgsnd; /* messages sent */ 86 long ru_msgrcv; /* messages received */ 87 long ru_nsignals; /* signals received */ 88 long ru_nvcsw; /* voluntary context switches */ 89 long ru_nivcsw; /* involuntary " */ 90 #define ru_last ru_nivcsw 91 }; 92 93 /* 94 * Resource limits 95 */ 96 #define RLIMIT_CPU 0 /* cpu time in milliseconds */ 97 #define RLIMIT_FSIZE 1 /* maximum file size */ 98 #define RLIMIT_DATA 2 /* data size */ 99 #define RLIMIT_STACK 3 /* stack size */ 100 #define RLIMIT_CORE 4 /* core file size */ 101 #define RLIMIT_RSS 5 /* resident set size */ 102 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ 103 #define RLIMIT_NPROC 7 /* number of processes */ 104 #define RLIMIT_NOFILE 8 /* number of open files */ 105 #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */ 106 #define RLIMIT_VMEM 10 /* virtual process size (inclusive of mmap) */ 107 #define RLIMIT_AS RLIMIT_VMEM /* standard name for address space size */ 108 #define RLIMIT_POSIXLOCKS 11 /* maximum number of POSIX locks per user */ 109 110 #define RLIM_NLIMITS 12 /* number of resource limits */ 111 112 #define RLIM_INFINITY ((rlim_t)(((__uint64_t)1 << 63) - 1)) /* no limit */ 113 #define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */ 114 #define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */ 115 116 /* 117 * Resource limit string identifiers 118 */ 119 #ifdef _RLIMIT_IDENT 120 static char *rlimit_ident[] = { 121 "cpu", 122 "fsize", 123 "data", 124 "stack", 125 "core", 126 "rss", 127 "memlock", 128 "nproc", 129 "nofile", 130 "sbsize", 131 "vmem", 132 "posixlock", 133 }; 134 #endif 135 136 struct rlimit { 137 rlim_t rlim_cur; /* current (soft) limit */ 138 rlim_t rlim_max; /* maximum value for rlim_cur */ 139 }; 140 141 #if __BSD_VISIBLE 142 struct orlimit { 143 __int32_t rlim_cur; /* current (soft) limit */ 144 __int32_t rlim_max; /* maximum value for rlim_cur */ 145 }; 146 147 struct loadavg { 148 __uint64_t ldavg[3]; /* 64-bits to avoid overflow */ 149 long fscale; 150 }; 151 152 /* 153 * CPU state fields as reported by the sysctl kern.cp_time 154 */ 155 #define CP_USER 0 156 #define CP_NICE 1 157 #define CP_SYS 2 158 #define CP_INTR 3 159 #define CP_IDLE 4 160 #define CPUSTATES 5 161 #endif /* __BSD_VISIBLE */ 162 163 #ifdef _KERNEL 164 extern struct loadavg averunnable; 165 166 int dosetrlimit(unsigned int which, struct rlimit *limp); 167 #else 168 __BEGIN_DECLS 169 int getpriority(int, int); /* XXX should take id_t as second arg */ 170 int getrlimit(int, struct rlimit *); 171 int getrusage(int, struct rusage *); 172 int setpriority(int, int, int); /* XXX should take id_t as second arg */ 173 int setrlimit(int, const struct rlimit *); 174 #if __BSD_VISIBLE 175 int ioprio_get(int, int); 176 int ioprio_set(int, int, int); 177 #endif 178 __END_DECLS 179 #endif /* _KERNEL */ 180 181 #endif /* !_SYS_RESOURCE_H_ */ 182