1 /* Bit values & structures for resource limits. Linux/SPARC version.
2 Copyright (C) 1994-2014 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #ifndef _SYS_RESOURCE_H
20 # error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
23 #include <bits/types.h>
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. */
30 /* Kinds of resource limit. */
31 enum __rlimit_resource
33 /* Per-process CPU limit, in seconds. */
35 #define RLIMIT_CPU RLIMIT_CPU
37 /* Largest file that can be created, in bytes. */
39 #define RLIMIT_FSIZE RLIMIT_FSIZE
41 /* Maximum size of data segment, in bytes. */
43 #define RLIMIT_DATA RLIMIT_DATA
45 /* Maximum size of stack segment, in bytes. */
47 #define RLIMIT_STACK RLIMIT_STACK
49 /* Largest core file that can be created, in bytes. */
51 #define RLIMIT_CORE RLIMIT_CORE
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
58 #define RLIMIT_RSS __RLIMIT_RSS
60 /* Number of open files. */
62 __RLIMIT_OFILE
= RLIMIT_NOFILE
, /* BSD name for same. */
63 #define RLIMIT_NOFILE RLIMIT_NOFILE
64 #define RLIMIT_OFILE __RLIMIT_OFILE
66 /* Address space limit (?) */
68 #define RLIMIT_AS RLIMIT_AS
70 /* Number of processes. */
72 #define RLIMIT_NPROC __RLIMIT_NPROC
74 /* Locked-in-memory address space. */
76 #define RLIMIT_MEMLOCK __RLIMIT_MEMLOCK
78 /* Maximum number of file locks. */
80 #define RLIMIT_LOCKS __RLIMIT_LOCKS
82 /* Maximum number of pending signals. */
83 __RLIMIT_SIGPENDING
= 11,
84 #define RLIMIT_SIGPENDING __RLIMIT_SIGPENDING
86 /* Maximum bytes in POSIX message queues. */
87 __RLIMIT_MSGQUEUE
= 12,
88 #define RLIMIT_MSGQUEUE __RLIMIT_MSGQUEUE
90 /* Maximum nice priority allowed to raise to.
91 Nice levels 19 .. -20 correspond to 0 .. 39
92 values of this resource limit. */
94 #define RLIMIT_NICE __RLIMIT_NICE
96 /* Maximum realtime priority allowed for non-priviledged
99 #define RLIMIT_RTPRIO __RLIMIT_RTPRIO
101 /* Maximum CPU time in µs that a process scheduled under a real-time
102 scheduling policy may consume without making a blocking system
103 call before being forcibly descheduled. */
104 __RLIMIT_RTTIME
= 15,
105 #define RLIMIT_RTTIME __RLIMIT_RTTIME
107 __RLIMIT_NLIMITS
= 16,
108 __RLIM_NLIMITS
= __RLIMIT_NLIMITS
109 #define RLIMIT_NLIMITS __RLIMIT_NLIMITS
110 #define RLIM_NLIMITS __RLIM_NLIMITS
113 /* Value to indicate that there is no limit. */
116 #ifndef __USE_FILE_OFFSET64
117 # define RLIM_INFINITY ((unsigned long int)(~0UL))
119 # define RLIM_INFINITY 0xffffffffffffffffuLL
122 #ifdef __USE_LARGEFILE64
123 # define RLIM64_INFINITY 0xffffffffffffffffuLL
128 #ifndef __USE_FILE_OFFSET64
129 # define RLIM_INFINITY ((long int)(~0UL >> 1))
131 # define RLIM_INFINITY 0xffffffffffffffffLL
134 #ifdef __USE_LARGEFILE64
135 # define RLIM64_INFINITY 0xffffffffffffffffLL
140 /* We can represent all limits. */
141 #define RLIM_SAVED_MAX RLIM_INFINITY
142 #define RLIM_SAVED_CUR RLIM_INFINITY
145 /* Type for resource quantity measurement. */
146 #ifndef __USE_FILE_OFFSET64
147 typedef __rlim_t rlim_t
;
149 typedef __rlim64_t rlim_t
;
151 #ifdef __USE_LARGEFILE64
152 typedef __rlim64_t rlim64_t
;
157 /* The current (soft) limit. */
159 /* The hard limit. */
163 #ifdef __USE_LARGEFILE64
166 /* The current (soft) limit. */
168 /* The hard limit. */
173 /* Whose usage statistics do you want? */
176 /* The calling process. */
178 #define RUSAGE_SELF RUSAGE_SELF
180 /* All of its terminated child processes. */
182 #define RUSAGE_CHILDREN RUSAGE_CHILDREN
186 /* The calling thread. */
188 # define RUSAGE_THREAD RUSAGE_THREAD
189 /* Name for the same functionality on Solaris. */
190 # define RUSAGE_LWP RUSAGE_THREAD
194 #define __need_timeval
195 #include <bits/time.h> /* For `struct timeval'. */
197 /* Structure which says how much of each resource has been used. */
200 /* Total amount of user time used. */
201 struct timeval ru_utime
;
202 /* Total amount of system time used. */
203 struct timeval ru_stime
;
204 /* Maximum resident set size (in kilobytes). */
206 /* Amount of sharing of text segment memory
207 with other processes (kilobyte-seconds). */
209 /* Amount of data segment memory used (kilobyte-seconds). */
211 /* Amount of stack memory used (kilobyte-seconds). */
213 /* Number of soft page faults (i.e. those serviced by reclaiming
214 a page from the list of pages awaiting reallocation. */
216 /* Number of hard page faults (i.e. those that required I/O). */
218 /* Number of times a process was swapped out of physical memory. */
220 /* Number of input operations via the file system. Note: This
221 and `ru_oublock' do not include operations with the cache. */
223 /* Number of output operations via the file system. */
225 /* Number of IPC messages sent. */
227 /* Number of IPC messages received. */
229 /* Number of signals delivered. */
230 long int ru_nsignals
;
231 /* Number of voluntary context switches, i.e. because the process
232 gave up the process before it had to (usually to wait for some
233 resource to be available). */
235 /* Number of involuntary context switches, i.e. a higher priority process
236 became runnable or the current process used up its time slice. */
240 /* Priority limits. */
241 #define PRIO_MIN -20 /* Minimum priority a process can have. */
242 #define PRIO_MAX 20 /* Maximum priority a process can have. */
244 /* The type of the WHICH argument to `getpriority' and `setpriority',
245 indicating what flavor of entity the WHO argument specifies. */
246 enum __priority_which
248 PRIO_PROCESS
= 0, /* WHO is a process ID. */
249 #define PRIO_PROCESS PRIO_PROCESS
250 PRIO_PGRP
= 1, /* WHO is a process group ID. */
251 #define PRIO_PGRP PRIO_PGRP
252 PRIO_USER
= 2 /* WHO is a user ID. */
253 #define PRIO_USER PRIO_USER