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ba1ffaa1 | 1 | /* Bit values & structures for resource limits. 4.4 BSD/generic GNU version. |
d4697bc9 | 2 | Copyright (C) 1994-2014 Free Software Foundation, Inc. |
54d79e99 | 3 | This file is part of the GNU C Library. |
28f540f4 | 4 | |
54d79e99 | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
28f540f4 | 9 | |
54d79e99 UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
28f540f4 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 | 18 | |
f4017d20 UD |
19 | #ifndef _SYS_RESOURCE_H |
20 | # error "Never use <bits/resource.h> directly; include <sys/resource.h> instead." | |
21 | #endif | |
22 | ||
d71b808a UD |
23 | #include <bits/types.h> |
24 | ||
28f540f4 RM |
25 | /* These are the values for 4.4 BSD and GNU. Earlier BSD systems have a |
26 | subset of these kinds of resource limit. In systems where `getrlimit' | |
27 | and `setrlimit' are not system calls, these are the values used by the C | |
28 | library to emulate them. */ | |
29 | ||
30 | /* Kinds of resource limit. */ | |
31 | enum __rlimit_resource | |
32 | { | |
33 | /* Per-process CPU limit, in seconds. */ | |
34 | RLIMIT_CPU, | |
23396375 | 35 | #define RLIMIT_CPU RLIMIT_CPU |
28f540f4 RM |
36 | /* Largest file that can be created, in bytes. */ |
37 | RLIMIT_FSIZE, | |
23396375 | 38 | #define RLIMIT_FSIZE RLIMIT_FSIZE |
28f540f4 RM |
39 | /* Maximum size of data segment, in bytes. */ |
40 | RLIMIT_DATA, | |
23396375 | 41 | #define RLIMIT_DATA RLIMIT_DATA |
28f540f4 RM |
42 | /* Maximum size of stack segment, in bytes. */ |
43 | RLIMIT_STACK, | |
23396375 | 44 | #define RLIMIT_STACK RLIMIT_STACK |
28f540f4 RM |
45 | /* Largest core file that can be created, in bytes. */ |
46 | RLIMIT_CORE, | |
23396375 | 47 | #define RLIMIT_CORE RLIMIT_CORE |
28f540f4 RM |
48 | /* Largest resident set size, in bytes. |
49 | This affects swapping; processes that are exceeding their | |
50 | resident set size will be more likely to have physical memory | |
51 | taken from them. */ | |
52 | RLIMIT_RSS, | |
23396375 | 53 | #define RLIMIT_RSS RLIMIT_RSS |
28f540f4 RM |
54 | /* Locked-in-memory address space. */ |
55 | RLIMIT_MEMLOCK, | |
23396375 | 56 | #define RLIMIT_MEMLOCK RLIMIT_MEMLOCK |
28f540f4 RM |
57 | /* Number of processes. */ |
58 | RLIMIT_NPROC, | |
23396375 | 59 | #define RLIMIT_NPROC RLIMIT_NPROC |
28f540f4 RM |
60 | /* Number of open files. */ |
61 | RLIMIT_OFILE, | |
62 | RLIMIT_NOFILE = RLIMIT_OFILE, /* Another name for the same thing. */ | |
23396375 UD |
63 | #define RLIMIT_OFILE RLIMIT_OFILE |
64 | #define RLIMIT_NOFILE RLIMIT_NOFILE | |
a26c855c RM |
65 | /* Maximum size of all socket buffers. */ |
66 | RLIMIT_SBSIZE, | |
67 | #define RLIMIT_SBSIZE RLIMIT_SBSIZE | |
68 | /* Maximum size in bytes of the process address space. */ | |
69 | RLIMIT_AS, | |
70 | RLIMIT_VMEM = RLIMIT_AS, /* Another name for the same thing. */ | |
71 | #define RLIMIT_AS RLIMIT_AS | |
72 | #define RLIMIT_VMEM RLIMIT_AS | |
28f540f4 RM |
73 | |
74 | RLIMIT_NLIMITS, /* Number of limit flavors. */ | |
31161268 | 75 | RLIM_NLIMITS = RLIMIT_NLIMITS /* Traditional name for same. */ |
ba1ffaa1 UD |
76 | }; |
77 | ||
9756dfe1 UD |
78 | /* Value to indicate that there is no limit. */ |
79 | #ifndef __USE_FILE_OFFSET64 | |
80 | # define RLIM_INFINITY 0x7fffffff | |
81 | #else | |
82 | # define RLIM_INFINITY 0x7fffffffffffffffLL | |
83 | #endif | |
84 | ||
85 | #ifdef __USE_LARGEFILE64 | |
86 | # define RLIM64_INFINITY 0x7fffffffffffffffLL | |
87 | #endif | |
88 | ||
89 | ||
dfd2257a UD |
90 | /* Type for resource quantity measurement. */ |
91 | #ifndef __USE_FILE_OFFSET64 | |
92 | typedef __rlim_t rlim_t; | |
93 | #else | |
94 | typedef __rlim64_t rlim_t; | |
95 | #endif | |
96 | #ifdef __USE_LARGEFILE64 | |
97 | typedef __rlim64_t rlim64_t; | |
98 | #endif | |
99 | ||
ba1ffaa1 UD |
100 | struct rlimit |
101 | { | |
102 | /* The current (soft) limit. */ | |
dfd2257a | 103 | rlim_t rlim_cur; |
ba1ffaa1 | 104 | /* The hard limit. */ |
dfd2257a | 105 | rlim_t rlim_max; |
ba1ffaa1 UD |
106 | }; |
107 | ||
dfd2257a UD |
108 | #ifdef __USE_LARGEFILE64 |
109 | struct rlimit64 | |
110 | { | |
111 | /* The current (soft) limit. */ | |
112 | rlim64_t rlim_cur; | |
113 | /* The hard limit. */ | |
114 | rlim64_t rlim_max; | |
115 | }; | |
116 | #endif | |
117 | ||
ba1ffaa1 UD |
118 | /* Whose usage statistics do you want? */ |
119 | enum __rusage_who | |
120 | /* The macro definitions are necessary because some programs want | |
121 | to test for operating system features with #ifdef RUSAGE_SELF. | |
122 | In ISO C the reflexive definition is a no-op. */ | |
123 | { | |
124 | /* The calling process. */ | |
125 | RUSAGE_SELF = 0, | |
126 | #define RUSAGE_SELF RUSAGE_SELF | |
127 | /* All of its terminated child processes. */ | |
128 | RUSAGE_CHILDREN = -1 | |
129 | #define RUSAGE_CHILDREN RUSAGE_CHILDREN | |
130 | }; | |
131 | ||
f4017d20 UD |
132 | #define __need_timeval |
133 | #include <bits/time.h> /* For `struct timeval'. */ | |
ba1ffaa1 UD |
134 | |
135 | /* Structure which says how much of each resource has been used. */ | |
136 | struct rusage | |
137 | { | |
138 | /* Total amount of user time used. */ | |
139 | struct timeval ru_utime; | |
140 | /* Total amount of system time used. */ | |
141 | struct timeval ru_stime; | |
142 | /* Maximum resident set size (in kilobytes). */ | |
143 | long int ru_maxrss; | |
144 | /* Amount of sharing of text segment memory | |
145 | with other processes (kilobyte-seconds). */ | |
146 | long int ru_ixrss; | |
147 | /* Amount of data segment memory used (kilobyte-seconds). */ | |
148 | long int ru_idrss; | |
149 | /* Amount of stack memory used (kilobyte-seconds). */ | |
150 | long int ru_isrss; | |
151 | /* Number of soft page faults (i.e. those serviced by reclaiming | |
152 | a page from the list of pages awaiting reallocation. */ | |
153 | long int ru_minflt; | |
154 | /* Number of hard page faults (i.e. those that required I/O). */ | |
155 | long int ru_majflt; | |
156 | /* Number of times a process was swapped out of physical memory. */ | |
157 | long int ru_nswap; | |
158 | /* Number of input operations via the file system. Note: This | |
159 | and `ru_oublock' do not include operations with the cache. */ | |
160 | long int ru_inblock; | |
161 | /* Number of output operations via the file system. */ | |
162 | long int ru_oublock; | |
163 | /* Number of IPC messages sent. */ | |
164 | long int ru_msgsnd; | |
165 | /* Number of IPC messages received. */ | |
166 | long int ru_msgrcv; | |
167 | /* Number of signals delivered. */ | |
168 | long int ru_nsignals; | |
169 | /* Number of voluntary context switches, i.e. because the process | |
170 | gave up the process before it had to (usually to wait for some | |
171 | resource to be available). */ | |
172 | long int ru_nvcsw; | |
173 | /* Number of involuntary context switches, i.e. a higher priority process | |
174 | became runnable or the current process used up its time slice. */ | |
175 | long int ru_nivcsw; | |
176 | }; | |
177 | ||
178 | /* Priority limits. */ | |
179 | #define PRIO_MIN -20 /* Minimum priority a process can have. */ | |
180 | #define PRIO_MAX 20 /* Maximum priority a process can have. */ | |
181 | ||
182 | /* The type of the WHICH argument to `getpriority' and `setpriority', | |
183 | indicating what flavor of entity the WHO argument specifies. */ | |
184 | enum __priority_which | |
185 | { | |
186 | PRIO_PROCESS = 0, /* WHO is a process ID. */ | |
7832cb80 | 187 | #define PRIO_PROCESS PRIO_PROCESS |
ba1ffaa1 | 188 | PRIO_PGRP = 1, /* WHO is a process group ID. */ |
7832cb80 | 189 | #define PRIO_PGRP PRIO_PGRP |
ba1ffaa1 | 190 | PRIO_USER = 2 /* WHO is a user ID. */ |
7832cb80 | 191 | #define PRIO_USER PRIO_USER |
28f540f4 | 192 | }; |