1 /* Bit values & structures for resource limits. Linux/m68k version.
2 Copyright (C) 1994,1996,1997,1998,1999,2000,2001 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
83 RLIM_NLIMITS = RLIMIT_NLIMITS
84 #define RLIMIT_NLIMITS RLIMIT_NLIMITS
85 #define RLIM_NLIMITS RLIM_NLIMITS
88 /* Value to indicate that there is no limit. */
89 #ifndef __USE_FILE_OFFSET64
90 # define RLIM_INFINITY ((unsigned long)(~0UL))
92 # define RLIM_INFINITY 0xffffffffffffffffuLL
95 #ifdef __USE_LARGEFILE64
96 # define RLIM64_INFINITY 0xffffffffffffffffuLL
99 /* We can represent all limits. */
100 #define RLIM_SAVED_MAX RLIM_INFINITY
101 #define RLIM_SAVED_CUR RLIM_INFINITY
104 /* Type for resource quantity measurement. */
105 #ifndef __USE_FILE_OFFSET64
106 typedef __rlim_t rlim_t;
108 typedef __rlim64_t rlim_t;
110 #ifdef __USE_LARGEFILE64
111 typedef __rlim64_t rlim64_t;
116 /* The current (soft) limit. */
118 /* The hard limit. */
122 #ifdef __USE_LARGEFILE64
125 /* The current (soft) limit. */
127 /* The hard limit. */
132 /* Whose usage statistics do you want? */
135 /* The calling process. */
137 #define RUSAGE_SELF RUSAGE_SELF
139 /* All of its terminated child processes. */
140 RUSAGE_CHILDREN = -1,
141 #define RUSAGE_CHILDREN RUSAGE_CHILDREN
145 #define RUSAGE_BOTH RUSAGE_BOTH
148 #define __need_timeval
149 #include <bits/time.h> /* For `struct timeval'. */
151 /* Structure which says how much of each resource has been used. */
154 /* Total amount of user time used. */
155 struct timeval ru_utime;
156 /* Total amount of system time used. */
157 struct timeval ru_stime;
158 /* Maximum resident set size (in kilobytes). */
160 /* Amount of sharing of text segment memory
161 with other processes (kilobyte-seconds). */
163 /* Amount of data segment memory used (kilobyte-seconds). */
165 /* Amount of stack memory used (kilobyte-seconds). */
167 /* Number of soft page faults (i.e. those serviced by reclaiming
168 a page from the list of pages awaiting reallocation. */
170 /* Number of hard page faults (i.e. those that required I/O). */
172 /* Number of times a process was swapped out of physical memory. */
174 /* Number of input operations via the file system. Note: This
175 and `ru_oublock' do not include operations with the cache. */
177 /* Number of output operations via the file system. */
179 /* Number of IPC messages sent. */
181 /* Number of IPC messages received. */
183 /* Number of signals delivered. */
185 /* Number of voluntary context switches, i.e. because the process
186 gave up the process before it had to (usually to wait for some
187 resource to be available). */
189 /* Number of involuntary context switches, i.e. a higher priority process
190 became runnable or the current process used up its time slice. */
194 /* Priority limits. */
195 #define PRIO_MIN -20 /* Minimum priority a process can have. */
196 #define PRIO_MAX 20 /* Maximum priority a process can have. */
198 /* The type of the WHICH argument to `getpriority' and `setpriority',
199 indicating what flavor of entity the WHO argument specifies. */
200 enum __priority_which
202 PRIO_PROCESS = 0, /* WHO is a process ID. */
203 #define PRIO_PROCESS PRIO_PROCESS
204 PRIO_PGRP = 1, /* WHO is a process group ID. */
205 #define PRIO_PGRP PRIO_PGRP
206 PRIO_USER = 2 /* WHO is a user ID. */
207 #define PRIO_USER PRIO_USER