1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/* Bit values & structures for resource limits. 4.4 BSD/generic GNU version.
Copyright (C) 1994, 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _SYS_RESOURCE_H
# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
#endif
#include <bits/types.h>
/* These are the values for 4.4 BSD and GNU. Earlier BSD systems have a
subset of these kinds of resource limit. In systems where `getrlimit'
and `setrlimit' are not system calls, these are the values used by the C
library to emulate them. */
/* Kinds of resource limit. */
enum __rlimit_resource
{
/* Per-process CPU limit, in seconds. */
RLIMIT_CPU,
#define RLIMIT_CPU RLIMIT_CPU
/* Largest file that can be created, in bytes. */
RLIMIT_FSIZE,
#define RLIMIT_FSIZE RLIMIT_FSIZE
/* Maximum size of data segment, in bytes. */
RLIMIT_DATA,
#define RLIMIT_DATA RLIMIT_DATA
/* Maximum size of stack segment, in bytes. */
RLIMIT_STACK,
#define RLIMIT_STACK RLIMIT_STACK
/* Largest core file that can be created, in bytes. */
RLIMIT_CORE,
#define RLIMIT_CORE RLIMIT_CORE
/* Largest resident set size, in bytes.
This affects swapping; processes that are exceeding their
resident set size will be more likely to have physical memory
taken from them. */
RLIMIT_RSS,
#define RLIMIT_RSS RLIMIT_RSS
/* Locked-in-memory address space. */
RLIMIT_MEMLOCK,
#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK
/* Number of processes. */
RLIMIT_NPROC,
#define RLIMIT_NPROC RLIMIT_NPROC
/* Number of open files. */
RLIMIT_OFILE,
RLIMIT_NOFILE = RLIMIT_OFILE, /* Another name for the same thing. */
#define RLIMIT_OFILE RLIMIT_OFILE
#define RLIMIT_NOFILE RLIMIT_NOFILE
RLIMIT_NLIMITS, /* Number of limit flavors. */
RLIM_NLIMITS = RLIMIT_NLIMITS /* Traditional name for same. */
};
/* Value to indicate that there is no limit. */
#ifndef __USE_FILE_OFFSET64
# define RLIM_INFINITY 0x7fffffff
#else
# define RLIM_INFINITY 0x7fffffffffffffffLL
#endif
#ifdef __USE_LARGEFILE64
# define RLIM64_INFINITY 0x7fffffffffffffffLL
#endif
/* Type for resource quantity measurement. */
#ifndef __USE_FILE_OFFSET64
typedef __rlim_t rlim_t;
#else
typedef __rlim64_t rlim_t;
#endif
#ifdef __USE_LARGEFILE64
typedef __rlim64_t rlim64_t;
#endif
struct rlimit
{
/* The current (soft) limit. */
rlim_t rlim_cur;
/* The hard limit. */
rlim_t rlim_max;
};
#ifdef __USE_LARGEFILE64
struct rlimit64
{
/* The current (soft) limit. */
rlim64_t rlim_cur;
/* The hard limit. */
rlim64_t rlim_max;
};
#endif
/* Whose usage statistics do you want? */
enum __rusage_who
/* The macro definitions are necessary because some programs want
to test for operating system features with #ifdef RUSAGE_SELF.
In ISO C the reflexive definition is a no-op. */
{
/* The calling process. */
RUSAGE_SELF = 0,
#define RUSAGE_SELF RUSAGE_SELF
/* All of its terminated child processes. */
RUSAGE_CHILDREN = -1
#define RUSAGE_CHILDREN RUSAGE_CHILDREN
};
#define __need_timeval
#include <bits/time.h> /* For `struct timeval'. */
/* Structure which says how much of each resource has been used. */
struct rusage
{
/* Total amount of user time used. */
struct timeval ru_utime;
/* Total amount of system time used. */
struct timeval ru_stime;
/* Maximum resident set size (in kilobytes). */
long int ru_maxrss;
/* Amount of sharing of text segment memory
with other processes (kilobyte-seconds). */
long int ru_ixrss;
/* Amount of data segment memory used (kilobyte-seconds). */
long int ru_idrss;
/* Amount of stack memory used (kilobyte-seconds). */
long int ru_isrss;
/* Number of soft page faults (i.e. those serviced by reclaiming
a page from the list of pages awaiting reallocation. */
long int ru_minflt;
/* Number of hard page faults (i.e. those that required I/O). */
long int ru_majflt;
/* Number of times a process was swapped out of physical memory. */
long int ru_nswap;
/* Number of input operations via the file system. Note: This
and `ru_oublock' do not include operations with the cache. */
long int ru_inblock;
/* Number of output operations via the file system. */
long int ru_oublock;
/* Number of IPC messages sent. */
long int ru_msgsnd;
/* Number of IPC messages received. */
long int ru_msgrcv;
/* Number of signals delivered. */
long int ru_nsignals;
/* Number of voluntary context switches, i.e. because the process
gave up the process before it had to (usually to wait for some
resource to be available). */
long int ru_nvcsw;
/* Number of involuntary context switches, i.e. a higher priority process
became runnable or the current process used up its time slice. */
long int ru_nivcsw;
};
/* Priority limits. */
#define PRIO_MIN -20 /* Minimum priority a process can have. */
#define PRIO_MAX 20 /* Maximum priority a process can have. */
/* The type of the WHICH argument to `getpriority' and `setpriority',
indicating what flavor of entity the WHO argument specifies. */
enum __priority_which
{
PRIO_PROCESS = 0, /* WHO is a process ID. */
PRIO_PGRP = 1, /* WHO is a process group ID. */
PRIO_USER = 2 /* WHO is a user ID. */
};
|
