1 /* $NetBSD: resource.h,v 1.29 2006/07/23 22:06:14 ad Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)resource.h 8.4 (Berkeley) 1/9/95 32 */ 33 34 #ifndef _SYS_RESOURCE_H_ 35 #define _SYS_RESOURCE_H_ 36 37 #include <sys/featuretest.h> 38 #include <sys/time.h> 39 40 /* 41 * Process priority specifications to get/setpriority. 42 */ 43 #define PRIO_MIN -20 44 #define PRIO_MAX 20 45 46 #define PRIO_PROCESS 0 47 #define PRIO_PGRP 1 48 #define PRIO_USER 2 49 50 /* 51 * Resource utilization information. 52 */ 53 54 #define RUSAGE_SELF 0 55 #define RUSAGE_CHILDREN -1 56 57 struct rusage { 58 struct timeval ru_utime; /* user time used */ 59 struct timeval ru_stime; /* system time used */ 60 long ru_maxrss; /* max resident set size */ 61 #ifdef _KERNEL 62 #define ru_first ru_ixrss 63 #endif 64 long ru_ixrss; /* integral shared memory size */ 65 long ru_idrss; /* integral unshared data " */ 66 long ru_isrss; /* integral unshared stack " */ 67 long ru_minflt; /* page reclaims */ 68 long ru_majflt; /* page faults */ 69 long ru_nswap; /* swaps */ 70 long ru_inblock; /* block input operations */ 71 long ru_oublock; /* block output operations */ 72 long ru_msgsnd; /* messages sent */ 73 long ru_msgrcv; /* messages received */ 74 long ru_nsignals; /* signals received */ 75 long ru_nvcsw; /* voluntary context switches */ 76 long ru_nivcsw; /* involuntary " */ 77 #ifdef _KERNEL 78 #define ru_last ru_nivcsw 79 #endif 80 }; 81 82 /* 83 * Resource limits 84 */ 85 #define RLIMIT_CPU 0 /* cpu time in milliseconds */ 86 #define RLIMIT_FSIZE 1 /* maximum file size */ 87 #define RLIMIT_DATA 2 /* data size */ 88 #define RLIMIT_STACK 3 /* stack size */ 89 #define RLIMIT_CORE 4 /* core file size */ 90 #define RLIMIT_RSS 5 /* resident set size */ 91 #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ 92 #define RLIMIT_NPROC 7 /* number of processes */ 93 #define RLIMIT_NOFILE 8 /* number of open files */ 94 #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */ 95 96 #if defined(_NETBSD_SOURCE) 97 #define RLIM_NLIMITS 10 /* number of resource limits */ 98 #endif 99 100 #define RLIM_INFINITY (~((u_quad_t)1 << 63)) /* no limit */ 101 #define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */ 102 #define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */ 103 104 #if defined(_KERNEL) 105 /* 4.3BSD compatibility rlimit argument structure. */ 106 struct orlimit { 107 int32_t rlim_cur; /* current (soft) limit */ 108 int32_t rlim_max; /* maximum value for rlim_cur */ 109 }; 110 #endif 111 112 struct rlimit { 113 rlim_t rlim_cur; /* current (soft) limit */ 114 rlim_t rlim_max; /* maximum value for rlim_cur */ 115 }; 116 117 #if defined(_NETBSD_SOURCE) 118 /* Load average structure. */ 119 struct loadavg { 120 fixpt_t ldavg[3]; 121 long fscale; 122 }; 123 #endif 124 125 #ifdef _KERNEL 126 extern struct loadavg averunnable; 127 struct pcred; 128 int dosetrlimit(struct lwp *, struct proc *, int, struct rlimit *); 129 int donice(struct lwp *, struct proc *, int); 130 131 #else 132 #include <sys/EfiCdefs.h> 133 134 __BEGIN_DECLS 135 int getpriority(int, id_t); 136 int getrlimit(int, struct rlimit *); 137 int getrusage(int, struct rusage *); 138 int setpriority(int, id_t, int); 139 int setrlimit(int, const struct rlimit *); 140 __END_DECLS 141 142 #endif /* _KERNEL */ 143 #endif /* !_SYS_RESOURCE_H_ */ 144