/* * Copyright (c) 1982, 1986, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)resource.h 8.4 (Berkeley) 1/9/95 * $FreeBSD: src/sys/sys/resource.h,v 1.12.2.2 2002/08/20 18:42:20 dillon Exp $ */ #ifndef _SYS_RESOURCE_H_ #define _SYS_RESOURCE_H_ #include <sys/cdefs.h> #include <machine/stdint.h> #include <sys/_timeval.h> /* XXX not used by our {get,set}priority(), defined here for XSI conformance */ #ifndef _ID_T_DECLARED #define _ID_T_DECLARED typedef __int64_t id_t; /* general id, can hold gid/pid/uid_t */ #endif #ifndef _RLIM_T_DECLARED #define _RLIM_T_DECLARED typedef __rlim_t rlim_t; /* resource limit */ #endif #if __BSD_VISIBLE /* * Process priority specifications to get/setpriority. */ #define PRIO_MIN -20 #define PRIO_MAX 20 #define IOPRIO_MIN 1 #define IOPRIO_MAX 10 #endif #define PRIO_PROCESS 0 #define PRIO_PGRP 1 #define PRIO_USER 2 /* * Resource utilization information. */ #define RUSAGE_SELF 0 #define RUSAGE_CHILDREN -1 struct rusage { struct timeval ru_utime; /* user time used */ struct timeval ru_stime; /* system time used */ long ru_maxrss; /* max resident set size */ #define ru_first ru_ixrss long ru_ixrss; /* integral shared memory size */ long ru_idrss; /* integral unshared data " */ long ru_isrss; /* integral unshared stack " */ long ru_minflt; /* page reclaims */ long ru_majflt; /* page faults */ long ru_nswap; /* swaps */ long ru_inblock; /* block input operations */ long ru_oublock; /* block output operations */ long ru_msgsnd; /* messages sent */ long ru_msgrcv; /* messages received */ long ru_nsignals; /* signals received */ long ru_nvcsw; /* voluntary context switches */ long ru_nivcsw; /* involuntary " */ #define ru_last ru_nivcsw }; #if __BSD_VISIBLE struct __wrusage { struct rusage wru_self; struct rusage wru_children; }; #endif /* * Resource limits */ #define RLIMIT_CPU 0 /* cpu time in milliseconds */ #define RLIMIT_FSIZE 1 /* maximum file size */ #define RLIMIT_DATA 2 /* data size */ #define RLIMIT_STACK 3 /* stack size */ #define RLIMIT_CORE 4 /* core file size */ #if __BSD_VISIBLE #define RLIMIT_RSS 5 /* resident set size */ #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */ #define RLIMIT_NPROC 7 /* number of processes */ #endif #define RLIMIT_NOFILE 8 /* number of open files */ #if __BSD_VISIBLE #define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */ #endif #define RLIMIT_AS 10 /* standard name for address space size */ #if __BSD_VISIBLE #define RLIMIT_VMEM RLIMIT_AS /* virtual process size (inclusive of mmap) */ #define RLIMIT_POSIXLOCKS 11 /* maximum number of POSIX locks per user */ #define RLIM_NLIMITS 12 /* number of resource limits */ #endif #define RLIM_INFINITY ((rlim_t)(((__uint64_t)1 << 63) - 1)) /* no limit */ #define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */ #define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */ /* * Resource limit string identifiers */ #ifdef _RLIMIT_IDENT static char *rlimit_ident[] = { "cpu", "fsize", "data", "stack", "core", "rss", "memlock", "nproc", "nofile", "sbsize", "vmem", "posixlock", }; #endif struct rlimit { rlim_t rlim_cur; /* current (soft) limit */ rlim_t rlim_max; /* maximum value for rlim_cur */ }; #if __BSD_VISIBLE struct loadavg { __uint64_t ldavg[3]; /* 64-bits to avoid overflow */ long fscale; }; /* * CPU state fields as reported by the sysctl kern.cp_time */ #define CP_USER 0 #define CP_NICE 1 #define CP_SYS 2 #define CP_INTR 3 #define CP_IDLE 4 #define CPUSTATES 5 #endif /* __BSD_VISIBLE */ #ifdef _KERNEL extern struct loadavg averunnable; int dosetrlimit(unsigned int which, struct rlimit *limp); #else __BEGIN_DECLS int getpriority(int, int); /* XXX should take id_t as second arg */ int getrlimit(int, struct rlimit *); int getrusage(int, struct rusage *); int setpriority(int, int, int); /* XXX should take id_t as second arg */ int setrlimit(int, const struct rlimit *); #if __BSD_VISIBLE int ioprio_get(int, int); int ioprio_set(int, int, int); #endif __END_DECLS #endif /* _KERNEL */ #endif /* !_SYS_RESOURCE_H_ */
