143 lines
4.6 KiB
C
143 lines
4.6 KiB
C
/* $NetBSD: resource.h,v 1.33 2012/06/09 02:31:15 christos Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)resource.h 8.4 (Berkeley) 1/9/95
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*/
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#ifndef _SYS_RESOURCE_H_
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#define _SYS_RESOURCE_H_
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#include <sys/featuretest.h>
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#include <sys/time.h>
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/*
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* Process priority specifications to get/setpriority.
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*/
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#define PRIO_MIN -20
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#define PRIO_MAX 20
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#define PRIO_PROCESS 0
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#define PRIO_PGRP 1
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#define PRIO_USER 2
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/*
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* Resource utilization information.
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*/
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#define RUSAGE_SELF 0
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#define RUSAGE_CHILDREN -1
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struct rusage {
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struct timeval ru_utime; /* user time used */
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struct timeval ru_stime; /* system time used */
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long ru_maxrss; /* max resident set size */
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#define ru_first ru_ixrss
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long ru_ixrss; /* integral shared memory size */
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long ru_idrss; /* integral unshared data " */
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long ru_isrss; /* integral unshared stack " */
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long ru_minflt; /* page reclaims */
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long ru_majflt; /* page faults */
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long ru_nswap; /* swaps */
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long ru_inblock; /* block input operations */
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long ru_oublock; /* block output operations */
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long ru_msgsnd; /* messages sent */
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long ru_msgrcv; /* messages received */
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long ru_nsignals; /* signals received */
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long ru_nvcsw; /* voluntary context switches */
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long ru_nivcsw; /* involuntary " */
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#define ru_last ru_nivcsw
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};
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/*
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* Resource limits
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*/
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#define RLIMIT_CPU 0 /* cpu time in milliseconds */
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#define RLIMIT_FSIZE 1 /* maximum file size */
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#define RLIMIT_DATA 2 /* data size */
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#define RLIMIT_STACK 3 /* stack size */
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#define RLIMIT_CORE 4 /* core file size */
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#define RLIMIT_RSS 5 /* resident set size */
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#define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
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#define RLIMIT_NPROC 7 /* number of processes */
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#define RLIMIT_NOFILE 8 /* number of open files */
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#define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */
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#define RLIMIT_AS 10 /* virtual process size (inclusive of mmap) */
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#define RLIMIT_VMEM RLIMIT_AS /* common alias */
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#define RLIMIT_NTHR 11 /* number of threads */
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#if defined(_NETBSD_SOURCE)
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#define RLIM_NLIMITS 12 /* number of resource limits */
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#endif
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#define RLIM_INFINITY (~((u_quad_t)1 << 63)) /* no limit */
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#define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */
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#define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */
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#if defined(_KERNEL)
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/* 4.3BSD compatibility rlimit argument structure. */
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struct orlimit {
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int32_t rlim_cur; /* current (soft) limit */
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int32_t rlim_max; /* maximum value for rlim_cur */
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};
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#endif
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struct rlimit {
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rlim_t rlim_cur; /* current (soft) limit */
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rlim_t rlim_max; /* maximum value for rlim_cur */
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};
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#if defined(_NETBSD_SOURCE)
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/* Load average structure. */
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struct loadavg {
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fixpt_t ldavg[3];
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long fscale;
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};
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#endif
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#ifdef _KERNEL
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extern struct loadavg averunnable;
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struct pcred;
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int dosetrlimit(struct lwp *, struct proc *, int, struct rlimit *);
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#else
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int getpriority(int, id_t);
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int getrlimit(int, struct rlimit *);
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#ifndef __LIBC12_SOURCE__
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int getrusage(int, struct rusage *) __RENAME(__getrusage50);
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#endif
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int setpriority(int, id_t, int);
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int setrlimit(int, const struct rlimit *);
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__END_DECLS
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#endif /* _KERNEL */
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#endif /* !_SYS_RESOURCE_H_ */
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