The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    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  * $FreeBSD$
   33  */
   34 
   35 #ifndef _SYS_RESOURCE_H_
   36 #define _SYS_RESOURCE_H_
   37 
   38 #include <sys/cdefs.h>
   39 #include <sys/_timeval.h>
   40 #include <sys/_types.h>
   41 
   42 #ifndef _ID_T_DECLARED
   43 typedef __id_t          id_t;
   44 #define _ID_T_DECLARED
   45 #endif
   46 
   47 #ifndef _RLIM_T_DECLARED
   48 typedef __rlim_t        rlim_t;
   49 #define _RLIM_T_DECLARED
   50 #endif
   51 
   52 /*
   53  * Process priority specifications to get/setpriority.
   54  */
   55 #define PRIO_MIN        -20
   56 #define PRIO_MAX        20
   57 
   58 #define PRIO_PROCESS    0
   59 #define PRIO_PGRP       1
   60 #define PRIO_USER       2
   61 
   62 /*
   63  * Resource utilization information.
   64  *
   65  * All fields are only modified by curthread and
   66  * no locks are required to read.
   67  */
   68 
   69 #define RUSAGE_SELF     0
   70 #define RUSAGE_CHILDREN -1
   71 #define RUSAGE_THREAD   1
   72 
   73 struct rusage {
   74         struct timeval ru_utime;        /* user time used */
   75         struct timeval ru_stime;        /* system time used */
   76         long    ru_maxrss;              /* max resident set size */
   77 #define ru_first        ru_ixrss
   78         long    ru_ixrss;               /* integral shared memory size */
   79         long    ru_idrss;               /* integral unshared data " */
   80         long    ru_isrss;               /* integral unshared stack " */
   81         long    ru_minflt;              /* page reclaims */
   82         long    ru_majflt;              /* page faults */
   83         long    ru_nswap;               /* swaps */
   84         long    ru_inblock;             /* block input operations */
   85         long    ru_oublock;             /* block output operations */
   86         long    ru_msgsnd;              /* messages sent */
   87         long    ru_msgrcv;              /* messages received */
   88         long    ru_nsignals;            /* signals received */
   89         long    ru_nvcsw;               /* voluntary context switches */
   90         long    ru_nivcsw;              /* involuntary " */
   91 #define ru_last         ru_nivcsw
   92 };
   93 
   94 #if __BSD_VISIBLE
   95 struct __wrusage {
   96         struct rusage   wru_self;
   97         struct rusage   wru_children;
   98 };
   99 #endif
  100 
  101 /*
  102  * Resource limits
  103  */
  104 #define RLIMIT_CPU      0               /* maximum cpu time in seconds */
  105 #define RLIMIT_FSIZE    1               /* maximum file size */
  106 #define RLIMIT_DATA     2               /* data size */
  107 #define RLIMIT_STACK    3               /* stack size */
  108 #define RLIMIT_CORE     4               /* core file size */
  109 #define RLIMIT_RSS      5               /* resident set size */
  110 #define RLIMIT_MEMLOCK  6               /* locked-in-memory address space */
  111 #define RLIMIT_NPROC    7               /* number of processes */
  112 #define RLIMIT_NOFILE   8               /* number of open files */
  113 #define RLIMIT_SBSIZE   9               /* maximum size of all socket buffers */
  114 #define RLIMIT_VMEM     10              /* virtual process size (incl. mmap) */
  115 #define RLIMIT_AS       RLIMIT_VMEM     /* standard name for RLIMIT_VMEM */
  116 #define RLIMIT_NPTS     11              /* pseudo-terminals */
  117 #define RLIMIT_SWAP     12              /* swap used */
  118 #define RLIMIT_KQUEUES  13              /* kqueues allocated */
  119 #define RLIMIT_UMTXP    14              /* process-shared umtx */
  120 
  121 #define RLIM_NLIMITS    15              /* number of resource limits */
  122 
  123 #define RLIM_INFINITY   ((rlim_t)(((__uint64_t)1 << 63) - 1))
  124 #define RLIM_SAVED_MAX  RLIM_INFINITY
  125 #define RLIM_SAVED_CUR  RLIM_INFINITY
  126 
  127 /*
  128  * Resource limit string identifiers
  129  */
  130 
  131 #ifdef _RLIMIT_IDENT
  132 static const char *rlimit_ident[RLIM_NLIMITS] = {
  133         "cpu",
  134         "fsize",
  135         "data",
  136         "stack",
  137         "core",
  138         "rss",
  139         "memlock",
  140         "nproc",
  141         "nofile",
  142         "sbsize",
  143         "vmem",
  144         "npts",
  145         "swap",
  146         "kqueues",
  147         "umtx",
  148 };
  149 #endif
  150 
  151 struct rlimit {
  152         rlim_t  rlim_cur;               /* current (soft) limit */
  153         rlim_t  rlim_max;               /* maximum value for rlim_cur */
  154 };
  155 
  156 #if __BSD_VISIBLE
  157 
  158 struct orlimit {
  159         __int32_t       rlim_cur;       /* current (soft) limit */
  160         __int32_t       rlim_max;       /* maximum value for rlim_cur */
  161 };
  162 
  163 struct loadavg {
  164         __fixpt_t       ldavg[3];
  165         long            fscale;
  166 };
  167 
  168 #define CP_USER         0
  169 #define CP_NICE         1
  170 #define CP_SYS          2
  171 #define CP_INTR         3
  172 #define CP_IDLE         4
  173 #define CPUSTATES       5
  174 
  175 #endif  /* __BSD_VISIBLE */
  176 
  177 #ifdef _KERNEL
  178 
  179 extern struct loadavg averunnable;
  180 void    read_cpu_time(long *cp_time);   /* Writes array of CPUSTATES */
  181 
  182 #else
  183 
  184 __BEGIN_DECLS
  185 /* XXX 2nd arg to [gs]etpriority() should be an id_t */
  186 int     getpriority(int, int);
  187 int     getrlimit(int, struct rlimit *);
  188 int     getrusage(int, struct rusage *);
  189 int     setpriority(int, int, int);
  190 int     setrlimit(int, const struct rlimit *);
  191 __END_DECLS
  192 
  193 #endif  /* _KERNEL */
  194 #endif  /* !_SYS_RESOURCE_H_ */

Cache object: 69f5a09af98764e19ddf1d19c4f397b2


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