libc/sysdeps/linux/sparc/bits/resource.h

   1 /* Bit values & structures for resource limits.  Linux/SPARC version.
   2    Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004, 2005
   3    Free Software Foundation, Inc.
   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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _SYS_RESOURCE_H
  20 # error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
  21 #endif
  22
  23 #include <bits/types.h>
  24
  25 /* Transmute defines to enumerations.  The macro re-definitions are
  26    necessary because some programs want to test for operating system
  27    features with #ifdef RUSAGE_SELF.  In ISO C the reflexive
  28    definition is a no-op.  */
  29
  30 /* Kinds of resource limit.  */
  31 enum __rlimit_resource
  32 {
  33   /* Per-process CPU limit, in seconds.  */
  34   RLIMIT_CPU = 0,
  35 #define RLIMIT_CPU RLIMIT_CPU
  36
  37   /* Largest file that can be created, in bytes.  */
  38   RLIMIT_FSIZE = 1,
  39 #define RLIMIT_FSIZE RLIMIT_FSIZE
  40
  41   /* Maximum size of data segment, in bytes.  */
  42   RLIMIT_DATA = 2,
  43 #define RLIMIT_DATA RLIMIT_DATA
  44
  45   /* Maximum size of stack segment, in bytes.  */
  46   RLIMIT_STACK = 3,
  47 #define RLIMIT_STACK RLIMIT_STACK
  48
  49   /* Largest core file that can be created, in bytes.  */
  50   RLIMIT_CORE = 4,
  51 #define RLIMIT_CORE RLIMIT_CORE
  52
  53   /* Largest resident set size, in bytes.
  54      This affects swapping; processes that are exceeding their
  55      resident set size will be more likely to have physical memory
  56      taken from them.  */
  57   __RLIMIT_RSS = 5,
  58 #define RLIMIT_RSS __RLIMIT_RSS
  59
  60   /* Number of open files.  */
  61   RLIMIT_NOFILE = 6,
  62   __RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same.  */
  63 #define RLIMIT_NOFILE RLIMIT_NOFILE
  64 #define RLIMIT_OFILE __RLIMIT_OFILE
  65
  66   /* Address space limit (?) */
  67   RLIMIT_AS = 9,
  68 #define RLIMIT_AS RLIMIT_AS
  69
  70   /* Number of processes.  */
  71   __RLIMIT_NPROC = 7,
  72 #define RLIMIT_NPROC __RLIMIT_NPROC
  73
  74   /* Locked-in-memory address space.  */
  75   __RLIMIT_MEMLOCK = 8,
  76 #define RLIMIT_MEMLOCK __RLIMIT_MEMLOCK
  77
  78   /* Maximum number of file locks.  */
  79   __RLIMIT_LOCKS = 10,
  80 #define RLIMIT_LOCKS __RLIMIT_LOCKS
  81
  82   /* Maximum number of pending signals.  */
  83   __RLIMIT_SIGPENDING = 11,
  84 #define RLIMIT_SIGPENDING __RLIMIT_SIGPENDING
  85
  86   /* Maximum bytes in POSIX message queues.  */
  87   __RLIMIT_MSGQUEUE = 12,
  88 #define RLIMIT_MSGQUEUE __RLIMIT_MSGQUEUE
  89
  90   /* Maximum nice priority allowed to raise to.
  91      Nice levels 19 .. -20 correspond to 0 .. 39
  92      values of this resource limit.  */
  93   __RLIMIT_NICE = 13,
  94 #define RLIMIT_NICE __RLIMIT_NICE
  95
  96   /* Maximum realtime priority allowed for non-priviledged
  97      processes.  */
  98   __RLIMIT_RTPRIO = 14,
  99 #define RLIMIT_RTPRIO __RLIMIT_RTPRIO
 100
 101   __RLIMIT_NLIMITS = 15,
 102   __RLIM_NLIMITS = __RLIMIT_NLIMITS
 103 #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
 104 #define RLIM_NLIMITS __RLIM_NLIMITS
 105 };
 106
 107 /* Value to indicate that there is no limit.  */
 108 #ifndef __USE_FILE_OFFSET64
 109 # define RLIM_INFINITY ((long int)(~0UL >> 1))
 110 #else
 111 # define RLIM_INFINITY 0x7fffffffffffffffLL
 112 #endif
 113
 114 #ifdef __USE_LARGEFILE64
 115 # define RLIM64_INFINITY 0x7fffffffffffffffLL
 116 #endif
 117
 118 /* We can represent all limits.  */
 119 #define RLIM_SAVED_MAX  RLIM_INFINITY
 120 #define RLIM_SAVED_CUR  RLIM_INFINITY
 121
 122
 123 /* Type for resource quantity measurement.  */
 124 #ifndef __USE_FILE_OFFSET64
 125 typedef __rlim_t rlim_t;
 126 #else
 127 typedef __rlim64_t rlim_t;
 128 #endif
 129 #ifdef __USE_LARGEFILE64
 130 typedef __rlim64_t rlim64_t;
 131 #endif
 132
 133 struct rlimit
 134   {
 135     /* The current (soft) limit.  */
 136     rlim_t rlim_cur;
 137     /* The hard limit.  */
 138     rlim_t rlim_max;
 139   };
 140
 141 #ifdef __USE_LARGEFILE64
 142 struct rlimit64
 143   {
 144     /* The current (soft) limit.  */
 145     rlim64_t rlim_cur;
 146     /* The hard limit.  */
 147     rlim64_t rlim_max;
 148  };
 149 #endif
 150
 151 /* Whose usage statistics do you want?  */
 152 enum __rusage_who
 153 {
 154   /* The calling process.  */
 155   RUSAGE_SELF = 0,
 156 #define RUSAGE_SELF RUSAGE_SELF
 157
 158   /* All of its terminated child processes.  */
 159   RUSAGE_CHILDREN = -1
 160 #define RUSAGE_CHILDREN RUSAGE_CHILDREN
 161 };
 162
 163 #define __need_timeval
 164 #include <bits/time.h>          /* For `struct timeval'.  */
 165
 166 /* Structure which says how much of each resource has been used.  */
 167 struct rusage
 168   {
 169     /* Total amount of user time used.  */
 170     struct timeval ru_utime;
 171     /* Total amount of system time used.  */
 172     struct timeval ru_stime;
 173     /* Maximum resident set size (in kilobytes).  */
 174     long int ru_maxrss;
 175     /* Amount of sharing of text segment memory
 176        with other processes (kilobyte-seconds).  */
 177     long int ru_ixrss;
 178     /* Amount of data segment memory used (kilobyte-seconds).  */
 179     long int ru_idrss;
 180     /* Amount of stack memory used (kilobyte-seconds).  */
 181     long int ru_isrss;
 182     /* Number of soft page faults (i.e. those serviced by reclaiming
 183        a page from the list of pages awaiting reallocation.  */
 184     long int ru_minflt;
 185     /* Number of hard page faults (i.e. those that required I/O).  */
 186     long int ru_majflt;
 187     /* Number of times a process was swapped out of physical memory.  */
 188     long int ru_nswap;
 189     /* Number of input operations via the file system.  Note: This
 190        and `ru_oublock' do not include operations with the cache.  */
 191     long int ru_inblock;
 192     /* Number of output operations via the file system.  */
 193     long int ru_oublock;
 194     /* Number of IPC messages sent.  */
 195     long int ru_msgsnd;
 196     /* Number of IPC messages received.  */
 197     long int ru_msgrcv;
 198     /* Number of signals delivered.  */
 199     long int ru_nsignals;
 200     /* Number of voluntary context switches, i.e. because the process
 201        gave up the process before it had to (usually to wait for some
 202        resource to be available).  */
 203     long int ru_nvcsw;
 204     /* Number of involuntary context switches, i.e. a higher priority process
 205        became runnable or the current process used up its time slice.  */
 206     long int ru_nivcsw;
 207   };
 208
 209 /* Priority limits.  */
 210 #define PRIO_MIN        -20     /* Minimum priority a process can have.  */
 211 #define PRIO_MAX        20      /* Maximum priority a process can have.  */
 212
 213 /* The type of the WHICH argument to `getpriority' and `setpriority',
 214    indicating what flavor of entity the WHO argument specifies.  */
 215 enum __priority_which
 216 {
 217   PRIO_PROCESS = 0,             /* WHO is a process ID.  */
 218 #define PRIO_PROCESS PRIO_PROCESS
 219   PRIO_PGRP = 1,                /* WHO is a process group ID.  */
 220 #define PRIO_PGRP PRIO_PGRP
 221   PRIO_USER = 2                 /* WHO is a user ID.  */
 222 #define PRIO_USER PRIO_USER
 223 };