text: /*	$NetBSD: resource.h,v 1.36 2019/03/30 23:29:55 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/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 */
  
  #define RLIM_NLIMITS 12                      /* number of resource limits */
  #define RLIM_INFINITY (~((u_quad_t)1 << 63)) /* no limit */
  
  struct rlimit {
    rlim_t rlim_cur; /* current (soft) limit */
    rlim_t rlim_max; /* maximum value for rlim_cur */
  };
  
  #ifndef _KERNEL
  #include <sys/cdefs.h>
  
  __BEGIN_DECLS
  int getpriority(int, id_t);
  int getrlimit(int, struct rlimit *);
  int getrusage(int, struct rusage *);
  int setpriority(int, id_t, int);
  int setrlimit(int, const struct rlimit *);
  __END_DECLS
  
  #endif /* !_KERNEL */
  
  #endif /* !_SYS_RESOURCE_H_ */
  