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resource.h
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resource.h
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/* $NetBSD: resource.h,v 1.33 2012/06/09 02:31:15 christos Exp $ */
/*
* 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
*/
#ifndef _SYS_RESOURCE_H_
#define _SYS_RESOURCE_H_
#include <sys/featuretest.h>
#include <sys/time.h>
/*
* Process priority specifications to get/setpriority.
*/
#define PRIO_MIN -20
#define PRIO_MAX 20
#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
};
/*
* 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 */
#define RLIMIT_RSS 5 /* resident set size */
#define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
#define RLIMIT_NPROC 7 /* number of processes */
#define RLIMIT_NOFILE 8 /* number of open files */
#define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */
#define RLIMIT_AS 10 /* virtual process size (inclusive of mmap) */
#define RLIMIT_VMEM RLIMIT_AS /* common alias */
#define RLIMIT_NTHR 11 /* number of threads */
#if defined(_NETBSD_SOURCE)
#define RLIM_NLIMITS 12 /* number of resource limits */
#endif
#define RLIM_INFINITY (~((u_quad_t)1 << 63)) /* no limit */
#define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */
#define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */
#if defined(_KERNEL)
/* 4.3BSD compatibility rlimit argument structure. */
struct orlimit {
int32_t rlim_cur; /* current (soft) limit */
int32_t rlim_max; /* maximum value for rlim_cur */
};
#endif
struct rlimit {
rlim_t rlim_cur; /* current (soft) limit */
rlim_t rlim_max; /* maximum value for rlim_cur */
};
#if defined(_NETBSD_SOURCE)
/* Load average structure. */
struct loadavg {
fixpt_t ldavg[3];
long fscale;
};
#endif
#ifdef _KERNEL
extern struct loadavg averunnable;
struct pcred;
int dosetrlimit(struct lwp *, struct proc *, int, struct rlimit *);
#else
#include <sys/cdefs.h>
__BEGIN_DECLS
int getpriority(int, id_t);
int getrlimit(int, struct rlimit *);
#ifndef __LIBC12_SOURCE__
int getrusage(int, struct rusage *) __RENAME(__getrusage50);
#endif
int setpriority(int, id_t, int);
int setrlimit(int, const struct rlimit *);
__END_DECLS
#endif /* _KERNEL */
#endif /* !_SYS_RESOURCE_H_ */