sysdeps/unix/sysv/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    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #ifndef _SYS_RESOURCE_H
  22 # error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
  23 #endif
  24
  25 #include <bits/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 /* Kinds of resource limit.  */
  33 enum __rlimit_resource
  34 {
  35   /* Per-process CPU limit, in seconds.  */
  36   RLIMIT_CPU = 0,
  37 #define RLIMIT_CPU RLIMIT_CPU
  38
  39   /* Largest file that can be created, in bytes.  */
  40   RLIMIT_FSIZE = 1,
  41 #define RLIMIT_FSIZE RLIMIT_FSIZE
  42
  43   /* Maximum size of data segment, in bytes.  */
  44   RLIMIT_DATA = 2,
  45 #define RLIMIT_DATA RLIMIT_DATA
  46
  47   /* Maximum size of stack segment, in bytes.  */
  48   RLIMIT_STACK = 3,
  49 #define RLIMIT_STACK RLIMIT_STACK
  50
  51   /* Largest core file that can be created, in bytes.  */
  52   RLIMIT_CORE = 4,
  53 #define RLIMIT_CORE RLIMIT_CORE
  54
  55   /* Largest resident set size, in bytes.
  56      This affects swapping; processes that are exceeding their
  57      resident set size will be more likely to have physical memory
  58      taken from them.  */
  59   __RLIMIT_RSS = 5,
  60 #define RLIMIT_RSS __RLIMIT_RSS
  61
  62   /* Number of open files.  */
  63   RLIMIT_NOFILE = 6,
  64   __RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same.  */
  65 #define RLIMIT_NOFILE RLIMIT_NOFILE
  66 #define RLIMIT_OFILE __RLIMIT_OFILE
  67
  68   /* Address space limit (?) */
  69   RLIMIT_AS = 9,
  70 #define RLIMIT_AS RLIMIT_AS
  71
  72   /* Number of processes.  */
  73   __RLIMIT_NPROC = 7,
  74 #define RLIMIT_NPROC __RLIMIT_NPROC
  75
  76   /* Locked-in-memory address space.  */
  77   __RLIMIT_MEMLOCK = 8,
  78 #define RLIMIT_MEMLOCK __RLIMIT_MEMLOCK
  79
  80   /* Maximum number of file locks.  */
  81   __RLIMIT_LOCKS = 10,
  82 #define RLIMIT_LOCKS __RLIMIT_LOCKS
  83
  84   /* Maximum number of pending signals.  */
  85   __RLIMIT_SIGPENDING = 11,
  86 #define RLIMIT_SIGPENDING __RLIMIT_SIGPENDING
  87
  88   /* Maximum bytes in POSIX message queues.  */
  89   __RLIMIT_MSGQUEUE = 12,
  90 #define RLIMIT_MSGQUEUE __RLIMIT_MSGQUEUE
  91
  92   /* Maximum nice priority allowed to raise to.
  93      Nice levels 19 .. -20 correspond to 0 .. 39
  94      values of this resource limit.  */
  95   __RLIMIT_NICE = 13,
  96 #define RLIMIT_NICE __RLIMIT_NICE
  97
  98   /* Maximum realtime priority allowed for non-priviledged
  99      processes.  */
 100   __RLIMIT_RTPRIO = 14,
 101 #define RLIMIT_RTPRIO __RLIMIT_RTPRIO
 102
 103   __RLIMIT_NLIMITS = 15,
 104   __RLIM_NLIMITS = __RLIMIT_NLIMITS
 105 #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
 106 #define RLIM_NLIMITS __RLIM_NLIMITS
 107 };
 108
 109 /* Value to indicate that there is no limit.  */
 110 #if __WORDSIZE == 64
 111
 112 #ifndef __USE_FILE_OFFSET64
 113 # define RLIM_INFINITY ((unsigned long int)(~0UL))
 114 #else
 115 # define RLIM_INFINITY 0xffffffffffffffffuLL
 116 #endif
 117
 118 #ifdef __USE_LARGEFILE64
 119 # define RLIM64_INFINITY 0xffffffffffffffffuLL
 120 #endif
 121
 122 #else
 123
 124 #ifndef __USE_FILE_OFFSET64
 125 # define RLIM_INFINITY ((long int)(~0UL >> 1))
 126 #else
 127 # define RLIM_INFINITY 0x7fffffffffffffffLL
 128 #endif
 129
 130 #ifdef __USE_LARGEFILE64
 131 # define RLIM64_INFINITY 0x7fffffffffffffffLL
 132 #endif
 133
 134 #endif
 135
 136 /* We can represent all limits.  */
 137 #define RLIM_SAVED_MAX  RLIM_INFINITY
 138 #define RLIM_SAVED_CUR  RLIM_INFINITY
 139
 140
 141 /* Type for resource quantity measurement.  */
 142 #ifndef __USE_FILE_OFFSET64
 143 typedef __rlim_t rlim_t;
 144 #else
 145 typedef __rlim64_t rlim_t;
 146 #endif
 147 #ifdef __USE_LARGEFILE64
 148 typedef __rlim64_t rlim64_t;
 149 #endif
 150
 151 struct rlimit
 152   {
 153     /* The current (soft) limit.  */
 154     rlim_t rlim_cur;
 155     /* The hard limit.  */
 156     rlim_t rlim_max;
 157   };
 158
 159 #ifdef __USE_LARGEFILE64
 160 struct rlimit64
 161   {
 162     /* The current (soft) limit.  */
 163     rlim64_t rlim_cur;
 164     /* The hard limit.  */
 165     rlim64_t rlim_max;
 166  };
 167 #endif
 168
 169 /* Whose usage statistics do you want?  */
 170 enum __rusage_who
 171 {
 172   /* The calling process.  */
 173   RUSAGE_SELF = 0,
 174 #define RUSAGE_SELF RUSAGE_SELF
 175
 176   /* All of its terminated child processes.  */
 177   RUSAGE_CHILDREN = -1
 178 #define RUSAGE_CHILDREN RUSAGE_CHILDREN
 179 };
 180
 181 #define __need_timeval
 182 #include <bits/time.h>          /* For `struct timeval'.  */
 183
 184 /* Structure which says how much of each resource has been used.  */
 185 struct rusage
 186   {
 187     /* Total amount of user time used.  */
 188     struct timeval ru_utime;
 189     /* Total amount of system time used.  */
 190     struct timeval ru_stime;
 191     /* Maximum resident set size (in kilobytes).  */
 192     long int ru_maxrss;
 193     /* Amount of sharing of text segment memory
 194        with other processes (kilobyte-seconds).  */
 195     long int ru_ixrss;
 196     /* Amount of data segment memory used (kilobyte-seconds).  */
 197     long int ru_idrss;
 198     /* Amount of stack memory used (kilobyte-seconds).  */
 199     long int ru_isrss;
 200     /* Number of soft page faults (i.e. those serviced by reclaiming
 201        a page from the list of pages awaiting reallocation.  */
 202     long int ru_minflt;
 203     /* Number of hard page faults (i.e. those that required I/O).  */
 204     long int ru_majflt;
 205     /* Number of times a process was swapped out of physical memory.  */
 206     long int ru_nswap;
 207     /* Number of input operations via the file system.  Note: This
 208        and `ru_oublock' do not include operations with the cache.  */
 209     long int ru_inblock;
 210     /* Number of output operations via the file system.  */
 211     long int ru_oublock;
 212     /* Number of IPC messages sent.  */
 213     long int ru_msgsnd;
 214     /* Number of IPC messages received.  */
 215     long int ru_msgrcv;
 216     /* Number of signals delivered.  */
 217     long int ru_nsignals;
 218     /* Number of voluntary context switches, i.e. because the process
 219        gave up the process before it had to (usually to wait for some
 220        resource to be available).  */
 221     long int ru_nvcsw;
 222     /* Number of involuntary context switches, i.e. a higher priority process
 223        became runnable or the current process used up its time slice.  */
 224     long int ru_nivcsw;
 225   };
 226
 227 /* Priority limits.  */
 228 #define PRIO_MIN        -20     /* Minimum priority a process can have.  */
 229 #define PRIO_MAX        20      /* Maximum priority a process can have.  */
 230
 231 /* The type of the WHICH argument to `getpriority' and `setpriority',
 232    indicating what flavor of entity the WHO argument specifies.  */
 233 enum __priority_which
 234 {
 235   PRIO_PROCESS = 0,             /* WHO is a process ID.  */
 236 #define PRIO_PROCESS PRIO_PROCESS
 237   PRIO_PGRP = 1,                /* WHO is a process group ID.  */
 238 #define PRIO_PGRP PRIO_PGRP
 239   PRIO_USER = 2                 /* WHO is a user ID.  */
 240 #define PRIO_USER PRIO_USER
 241 };