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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/unix/sysv/linux/resourcebits.h
1 /* Bit values & structures for resource limits. Linux version.
2 Copyright (C) 1994, 1996 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 Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 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 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
20 #include <asm/resource.h>
22 /* Transmute defines to enumerations. The macro re-definitions are
23 necessary because some programs want to test for operating system
24 features with #ifdef RUSAGE_SELF. In ISO C the reflexive
25 definition is a no-op. */
27 /* Kinds of resource limit. */
28 enum __rlimit_resource
30 /* Per-process CPU limit, in seconds. */
31 _RLIMIT_CPU
= RLIMIT_CPU
,
33 RLIMIT_CPU
= _RLIMIT_CPU
,
34 #define RLIMIT_CPU RLIMIT_CPU
36 /* Largest file that can be created, in bytes. */
37 _RLIMIT_FSIZE
= RLIMIT_FSIZE
,
39 RLIMIT_FSIZE
= _RLIMIT_FSIZE
,
40 #define RLIMIT_FSIZE RLIMIT_FSIZE
42 /* Maximum size of data segment, in bytes. */
43 _RLIMIT_DATA
= RLIMIT_DATA
,
45 RLIMIT_DATA
= _RLIMIT_DATA
,
46 #define RLIMIT_DATA RLIMIT_DATA
48 /* Maximum size of stack segment, in bytes. */
49 _RLIMIT_STACK
= RLIMIT_STACK
,
51 RLIMIT_STACK
= _RLIMIT_STACK
,
52 #define RLIMIT_STACK RLIMIT_STACK
54 /* Largest core file that can be created, in bytes. */
55 _RLIMIT_CORE
= RLIMIT_CORE
,
57 RLIMIT_CORE
= _RLIMIT_CORE
,
58 #define RLIMIT_CORE RLIMIT_CORE
60 /* Largest resident set size, in bytes.
61 This affects swapping; processes that are exceeding their
62 resident set size will be more likely to have physical memory
64 _RLIMIT_RSS
= RLIMIT_RSS
,
66 RLIMIT_RSS
= _RLIMIT_RSS
,
67 #define RLIMIT_RSS RLIMIT_RSS
69 /* Number of open files. */
70 _RLIMIT_NOFILE
= RLIMIT_NOFILE
,
72 RLIMIT_NOFILE
= _RLIMIT_NOFILE
,
73 RLIMIT_OFILE
= RLIMIT_NOFILE
, /* BSD name for same. */
74 #define RLIMIT_NOFILE RLIMIT_NOFILE
75 #define RLIMIT_OFILE RLIMIT_OFILE
77 /* Address space limit (?) */
78 _RLIMIT_AS
= RLIMIT_AS
,
80 RLIMIT_AS
= _RLIMIT_AS
,
81 #define RLIMIT_AS RLIMIT_AS
83 /* Number of processes. */
84 _RLIMIT_NPROC
= RLIMIT_NPROC
,
86 RLIMIT_NPROC
= _RLIMIT_NPROC
,
87 #define RLIMIT_NPROC RLIMIT_NPROC
89 /* Locked-in-memory address space. */
90 _RLIMIT_MEMLOCK
= RLIMIT_MEMLOCK
,
92 RLIMIT_MEMLOCK
= _RLIMIT_MEMLOCK
,
93 #define RLIMIT_MEMLOCK RLIMIT_MEMLOCK
95 RLIMIT_NLIMITS
= RLIM_NLIMITS
,
97 RLIM_NLIMITS
= RLIMIT_NLIMITS
,
98 #define RLIMIT_NLIMITS RLIMIT_NLIMITS
99 #define RLIM_NLIMITS RLIM_NLIMITS
101 /* Value to indicate that there is no limit. */
102 RLIM_INFINITY
= (long int)(~0UL >> 1)
103 #define RLIM_INFINITY RLIM_INFINITY
108 /* The current (soft) limit. */
110 /* The hard limit. */
114 /* Whose usage statistics do you want? */
117 /* The calling process. */
119 #define RUSAGE_SELF RUSAGE_SELF
121 /* All of its terminated child processes. */
122 RUSAGE_CHILDREN
= -1,
123 #define RUSAGE_CHILDREN RUSAGE_CHILDREN
127 #define RUSAGE_BOTH RUSAGE_BOTH
130 #include <sys/time.h> /* For `struct timeval'. */
132 /* Structure which says how much of each resource has been used. */
135 /* Total amount of user time used. */
136 struct timeval ru_utime
;
137 /* Total amount of system time used. */
138 struct timeval ru_stime
;
139 /* Maximum resident set size (in kilobytes). */
141 /* Amount of sharing of text segment memory
142 with other processes (kilobyte-seconds). */
144 /* Amount of data segment memory used (kilobyte-seconds). */
146 /* Amount of stack memory used (kilobyte-seconds). */
148 /* Number of soft page faults (i.e. those serviced by reclaiming
149 a page from the list of pages awaiting reallocation. */
151 /* Number of hard page faults (i.e. those that required I/O). */
153 /* Number of times a process was swapped out of physical memory. */
155 /* Number of input operations via the file system. Note: This
156 and `ru_oublock' do not include operations with the cache. */
158 /* Number of output operations via the file system. */
160 /* Number of IPC messages sent. */
162 /* Number of IPC messages received. */
164 /* Number of signals delivered. */
165 long int ru_nsignals
;
166 /* Number of voluntary context switches, i.e. because the process
167 gave up the process before it had to (usually to wait for some
168 resource to be available). */
170 /* Number of involuntary context switches, i.e. a higher priority process
171 became runnable or the current process used up its time slice. */
175 /* Priority limits. */
176 #define PRIO_MIN -20 /* Minimum priority a process can have. */
177 #define PRIO_MAX 20 /* Maximum priority a process can have. */
179 /* The type of the WHICH argument to `getpriority' and `setpriority',
180 indicating what flavor of entity the WHO argument specifies. */
181 enum __priority_which
183 PRIO_PROCESS
= 0, /* WHO is a process ID. */
184 PRIO_PGRP
= 1, /* WHO is a process group ID. */
185 PRIO_USER
= 2 /* WHO is a user ID. */