sysdeps/unix/bsd/bsd4.4/kfreebsd/bits/resource.h

   1 /* Bit values & structures for resource limits.  FreeBSD version.
   2    Copyright (C) 1994, 1996-1998, 2002 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifndef _SYS_RESOURCE_H
  21 # error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
  22 #endif
  23
  24 #include <bits/types.h>
  25 #include <sys/_types.h>
  26
  27 /* Transmute defines to enumerations.  The macro re-definitions are
  28    necessary because some programs want to test for operating system
  29    features with #ifdef RUSAGE_SELF.  In ISO C the reflexive
  30    definition is a no-op.
  31
  32    These are the values for FreeBSD.  Earlier BSD systems have a subset of
  33    these kinds of resource limit.  */
  34
  35 /* Kinds of resource limit.  */
  36 enum __rlimit_resource
  37 {
  38   /* Per-process CPU limit, in seconds.  */
  39   RLIMIT_CPU = 0,
  40 #define RLIMIT_CPU RLIMIT_CPU
  41
  42   /* Largest file that can be created, in bytes.  */
  43   RLIMIT_FSIZE = 1,
  44 #define RLIMIT_FSIZE RLIMIT_FSIZE
  45
  46   /* Maximum size of data segment, in bytes.  */
  47   RLIMIT_DATA = 2,
  48 #define RLIMIT_DATA RLIMIT_DATA
  49
  50   /* Maximum size of stack segment, in bytes.  */
  51   RLIMIT_STACK = 3,
  52 #define RLIMIT_STACK RLIMIT_STACK
  53
  54   /* Largest core file that can be created, in bytes.  */
  55   RLIMIT_CORE = 4,
  56 #define RLIMIT_CORE RLIMIT_CORE
  57
  58   /* Largest resident set size, in bytes.
  59      This affects swapping; processes that are exceeding their
  60      resident set size will be more likely to have physical memory
  61      taken from them.  */
  62   __RLIMIT_RSS = 5,
  63 #define RLIMIT_RSS __RLIMIT_RSS
  64
  65   /* Locked-in-memory address space.  */
  66   __RLIMIT_MEMLOCK = 6,
  67 #define RLIMIT_MEMLOCK __RLIMIT_MEMLOCK
  68
  69   /* Number of processes.  */
  70   __RLIMIT_NPROC = 7,
  71 #define RLIMIT_NPROC __RLIMIT_NPROC
  72
  73   /* Number of open files.  */
  74   RLIMIT_NOFILE = 8,
  75 #define RLIMIT_NOFILE RLIMIT_NOFILE
  76
  77   /* Maximum size of all socket buffers.  */
  78   __RLIMIT_SBSIZE = 9,
  79 #define RLIMIT_SBSIZE __RLIMIT_SBSIZE
  80
  81   /* Address space limit.  */
  82   RLIMIT_AS = 10,
  83 #define RLIMIT_AS RLIMIT_AS
  84   RLIMIT_VMEM = RLIMIT_AS,
  85
  86   /* Pseudo-terminals.  */
  87   RLIMIT_NPTS = 11,
  88 #define RLIMIT_NPTS RLIMIT_NPTS
  89
  90   /* Swap used.  */
  91   RLIMIT_SWAP = 12,
  92 #define RLIMIT_SWAP RLIMIT_SWAP
  93
  94   __RLIMIT_NLIMITS = 13,
  95   __RLIM_NLIMITS = __RLIMIT_NLIMITS
  96 #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
  97 #define RLIM_NLIMITS __RLIM_NLIMITS
  98 };
  99
 100 /* Value to indicate that there is no limit.  */
 101 #define RLIM_INFINITY 0x7fffffffffffffffLL
 102 #ifdef __USE_LARGEFILE64
 103 # define RLIM64_INFINITY 0x7fffffffffffffffLL
 104 #endif
 105
 106
 107 /* Type for resource quantity measurement.  */
 108 typedef __rlim_t rlim_t;
 109 #ifdef __USE_LARGEFILE64
 110 typedef __rlim64_t rlim64_t;
 111 #endif
 112
 113 struct rlimit
 114   {
 115     /* The current (soft) limit.  */
 116     rlim_t rlim_cur;
 117     /* The hard limit.  */
 118     rlim_t rlim_max;
 119   };
 120
 121 #ifdef __USE_LARGEFILE64
 122 struct rlimit64
 123   {
 124     /* The current (soft) limit.  */
 125     rlim64_t rlim_cur;
 126     /* The hard limit.  */
 127     rlim64_t rlim_max;
 128  };
 129 #endif
 130
 131 struct orlimit {
 132         __int32_t       rlim_cur;       /* current (soft) limit */
 133         __int32_t       rlim_max;       /* maximum value for rlim_cur */
 134 };
 135
 136 struct loadavg {
 137         __fixpt_t       ldavg[3];
 138         long            fscale;
 139 };
 140
 141 #define CP_USER         0
 142 #define CP_NICE         1
 143 #define CP_SYS          2
 144 #define CP_INTR         3
 145 #define CP_IDLE         4
 146 #define CPUSTATES       5
 147
 148 /* Whose usage statistics do you want?  */
 149 enum __rusage_who
 150 {
 151   /* The calling process.  */
 152   RUSAGE_SELF = 0,
 153 #define RUSAGE_SELF RUSAGE_SELF
 154
 155   /* All of its terminated child processes.  */
 156   RUSAGE_CHILDREN = -1
 157 #define RUSAGE_CHILDREN RUSAGE_CHILDREN
 158 };
 159
 160 #include <bits/types/struct_timeval.h>
 161
 162 /* Structure which says how much of each resource has been used.  */
 163 struct rusage
 164   {
 165     /* Total amount of user time used.  */
 166     struct timeval ru_utime;
 167     /* Total amount of system time used.  */
 168     struct timeval ru_stime;
 169     /* Maximum resident set size (in kilobytes).  */
 170     long int ru_maxrss;
 171     /* Amount of sharing of text segment memory
 172        with other processes (kilobyte-seconds).  */
 173     long int ru_ixrss;
 174     /* Amount of data segment memory used (kilobyte-seconds).  */
 175     long int ru_idrss;
 176     /* Amount of stack memory used (kilobyte-seconds).  */
 177     long int ru_isrss;
 178     /* Number of soft page faults (i.e. those serviced by reclaiming
 179        a page from the list of pages awaiting reallocation.  */
 180     long int ru_minflt;
 181     /* Number of hard page faults (i.e. those that required I/O).  */
 182     long int ru_majflt;
 183     /* Number of times a process was swapped out of physical memory.  */
 184     long int ru_nswap;
 185     /* Number of input operations via the file system.  Note: This
 186        and `ru_oublock' do not include operations with the cache.  */
 187     long int ru_inblock;
 188     /* Number of output operations via the file system.  */
 189     long int ru_oublock;
 190     /* Number of IPC messages sent.  */
 191     long int ru_msgsnd;
 192     /* Number of IPC messages received.  */
 193     long int ru_msgrcv;
 194     /* Number of signals delivered.  */
 195     long int ru_nsignals;
 196     /* Number of voluntary context switches, i.e. because the process
 197        gave up the process before it had to (usually to wait for some
 198        resource to be available).  */
 199     long int ru_nvcsw;
 200     /* Number of involuntary context switches, i.e. a higher priority process
 201        became runnable or the current process used up its time slice.  */
 202     long int ru_nivcsw;
 203   };
 204
 205 /* Priority limits.  */
 206 #define PRIO_MIN        -20     /* Minimum priority a process can have.  */
 207 #define PRIO_MAX        20      /* Maximum priority a process can have.  */
 208
 209 /* The type of the WHICH argument to `getpriority' and `setpriority',
 210    indicating what flavor of entity the WHO argument specifies.  */
 211 enum __priority_which
 212 {
 213   PRIO_PROCESS = 0,             /* WHO is a process ID.  */
 214 #define PRIO_PROCESS PRIO_PROCESS
 215   PRIO_PGRP = 1,                /* WHO is a process group ID.  */
 216 #define PRIO_PGRP PRIO_PGRP
 217   PRIO_USER = 2                 /* WHO is a user ID.  */
 218 #define PRIO_USER PRIO_USER
 219 };