1 /* Bit values & structures for resource limits. Linux/MIPS version.
2 Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2004
3 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
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.
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.
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
21 #ifndef _SYS_RESOURCE_H
22 # error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
25 #include <bits/types.h>
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. */
32 /* Kinds of resource limit. */
33 enum __rlimit_resource
35 /* Per-process CPU limit, in seconds. */
37 #define RLIMIT_CPU RLIMIT_CPU
39 /* Largest file that can be created, in bytes. */
41 #define RLIMIT_FSIZE RLIMIT_FSIZE
43 /* Maximum size of data segment, in bytes. */
45 #define RLIMIT_DATA RLIMIT_DATA
47 /* Maximum size of stack segment, in bytes. */
49 #define RLIMIT_STACK RLIMIT_STACK
51 /* Largest core file that can be created, in bytes. */
53 #define RLIMIT_CORE RLIMIT_CORE
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
60 #define RLIMIT_RSS __RLIMIT_RSS
62 /* Number of open files. */
64 __RLIMIT_OFILE
= RLIMIT_NOFILE
, /* BSD name for same. */
65 #define RLIMIT_NOFILE RLIMIT_NOFILE
66 #define RLIMIT_OFILE __RLIMIT_OFILE
68 /* Address space limit (?) */
70 #define RLIMIT_AS RLIMIT_AS
72 /* Number of processes. */
74 #define RLIMIT_NPROC __RLIMIT_NPROC
76 /* Locked-in-memory address space. */
78 #define RLIMIT_MEMLOCK __RLIMIT_MEMLOCK
80 /* Maximum number of file locks. */
82 #define RLIMIT_LOCKS __RLIMIT_LOCKS
84 /* Maximum number of pending signals. */
85 __RLIMIT_SIGPENDING
= 11,
86 #define RLIMIT_SIGPENDING __RLIMIT_SIGPENDING
88 /* Maximum bytes in POSIX message queues. */
89 __RLIMIT_MSGQUEUE
= 12,
90 #define RLIMIT_MSGQUEUE __RLIMIT_MSGQUEUE
92 __RLIMIT_NLIMITS
= 13,
93 __RLIM_NLIMITS
= __RLIMIT_NLIMITS
94 #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
95 #define RLIM_NLIMITS __RLIM_NLIMITS
98 /* Value to indicate that there is no limit. */
99 #ifndef __USE_FILE_OFFSET64
100 # define RLIM_INFINITY ((long int)(~0UL >> 1))
102 # define RLIM_INFINITY 0x7fffffffffffffffLL
105 #ifdef __USE_LARGEFILE64
106 # define RLIM64_INFINITY 0x7fffffffffffffffLL
109 /* We can represent all limits. */
110 #define RLIM_SAVED_MAX RLIM_INFINITY
111 #define RLIM_SAVED_CUR RLIM_INFINITY
114 /* Type for resource quantity measurement. */
115 #ifndef __USE_FILE_OFFSET64
116 typedef __rlim_t rlim_t
;
118 typedef __rlim64_t rlim_t
;
120 #ifdef __USE_LARGEFILE64
121 typedef __rlim64_t rlim64_t
;
126 /* The current (soft) limit. */
128 /* The hard limit. */
132 #ifdef __USE_LARGEFILE64
135 /* The current (soft) limit. */
137 /* The hard limit. */
142 /* Whose usage statistics do you want? */
145 /* The calling process. */
147 #define RUSAGE_SELF RUSAGE_SELF
149 /* All of its terminated child processes. */
151 #define RUSAGE_CHILDREN RUSAGE_CHILDREN
154 #define __need_timeval
155 #include <bits/time.h> /* For `struct timeval'. */
157 /* Structure which says how much of each resource has been used. */
160 /* Total amount of user time used. */
161 struct timeval ru_utime
;
162 /* Total amount of system time used. */
163 struct timeval ru_stime
;
164 /* Maximum resident set size (in kilobytes). */
166 /* Amount of sharing of text segment memory
167 with other processes (kilobyte-seconds). */
169 /* Amount of data segment memory used (kilobyte-seconds). */
171 /* Amount of stack memory used (kilobyte-seconds). */
173 /* Number of soft page faults (i.e. those serviced by reclaiming
174 a page from the list of pages awaiting reallocation. */
176 /* Number of hard page faults (i.e. those that required I/O). */
178 /* Number of times a process was swapped out of physical memory. */
180 /* Number of input operations via the file system. Note: This
181 and `ru_oublock' do not include operations with the cache. */
183 /* Number of output operations via the file system. */
185 /* Number of IPC messages sent. */
187 /* Number of IPC messages received. */
189 /* Number of signals delivered. */
190 long int ru_nsignals
;
191 /* Number of voluntary context switches, i.e. because the process
192 gave up the process before it had to (usually to wait for some
193 resource to be available). */
195 /* Number of involuntary context switches, i.e. a higher priority process
196 became runnable or the current process used up its time slice. */
200 /* Priority limits. */
201 #define PRIO_MIN -20 /* Minimum priority a process can have. */
202 #define PRIO_MAX 20 /* Maximum priority a process can have. */
204 /* The type of the WHICH argument to `getpriority' and `setpriority',
205 indicating what flavor of entity the WHO argument specifies. */
206 enum __priority_which
208 PRIO_PROCESS
= 0, /* WHO is a process ID. */
209 #define PRIO_PROCESS PRIO_PROCESS
210 PRIO_PGRP
= 1, /* WHO is a process group ID. */
211 #define PRIO_PGRP PRIO_PGRP
212 PRIO_USER
= 2 /* WHO is a user ID. */
213 #define PRIO_USER PRIO_USER