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FreeBSD/Linux Kernel Cross Reference
sys/sys/resource.h

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    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/cdefs.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_ */

Cache object: 74558d01d030da3692d3c62e4b8b0ace


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