/
resource.h
143 lines (125 loc) · 4.51 KB
/
resource.h
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
/* $NetBSD: resource.h,v 1.29 2006/07/23 22:06:14 ad Exp $ */
/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)resource.h 8.4 (Berkeley) 1/9/95
*/
#ifndef _SYS_RESOURCE_H_
#define _SYS_RESOURCE_H_
#include <sys/featuretest.h>
#include <sys/time.h>
/*
* Process priority specifications to get/setpriority.
*/
#define PRIO_MIN -20
#define PRIO_MAX 20
#define PRIO_PROCESS 0
#define PRIO_PGRP 1
#define PRIO_USER 2
/*
* Resource utilization information.
*/
#define RUSAGE_SELF 0
#define RUSAGE_CHILDREN -1
struct rusage {
struct timeval ru_utime; /* user time used */
struct timeval ru_stime; /* system time used */
long ru_maxrss; /* max resident set size */
#ifdef _KERNEL
#define ru_first ru_ixrss
#endif
long ru_ixrss; /* integral shared memory size */
long ru_idrss; /* integral unshared data " */
long ru_isrss; /* integral unshared stack " */
long ru_minflt; /* page reclaims */
long ru_majflt; /* page faults */
long ru_nswap; /* swaps */
long ru_inblock; /* block input operations */
long ru_oublock; /* block output operations */
long ru_msgsnd; /* messages sent */
long ru_msgrcv; /* messages received */
long ru_nsignals; /* signals received */
long ru_nvcsw; /* voluntary context switches */
long ru_nivcsw; /* involuntary " */
#ifdef _KERNEL
#define ru_last ru_nivcsw
#endif
};
/*
* Resource limits
*/
#define RLIMIT_CPU 0 /* cpu time in milliseconds */
#define RLIMIT_FSIZE 1 /* maximum file size */
#define RLIMIT_DATA 2 /* data size */
#define RLIMIT_STACK 3 /* stack size */
#define RLIMIT_CORE 4 /* core file size */
#define RLIMIT_RSS 5 /* resident set size */
#define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
#define RLIMIT_NPROC 7 /* number of processes */
#define RLIMIT_NOFILE 8 /* number of open files */
#define RLIMIT_SBSIZE 9 /* maximum size of all socket buffers */
#if defined(_NETBSD_SOURCE)
#define RLIM_NLIMITS 10 /* number of resource limits */
#endif
#define RLIM_INFINITY (~((u_quad_t)1 << 63)) /* no limit */
#define RLIM_SAVED_MAX RLIM_INFINITY /* unrepresentable hard limit */
#define RLIM_SAVED_CUR RLIM_INFINITY /* unrepresentable soft limit */
#if defined(_KERNEL)
/* 4.3BSD compatibility rlimit argument structure. */
struct orlimit {
int32_t rlim_cur; /* current (soft) limit */
int32_t rlim_max; /* maximum value for rlim_cur */
};
#endif
struct rlimit {
rlim_t rlim_cur; /* current (soft) limit */
rlim_t rlim_max; /* maximum value for rlim_cur */
};
#if defined(_NETBSD_SOURCE)
/* Load average structure. */
struct loadavg {
fixpt_t ldavg[3];
long fscale;
};
#endif
#ifdef _KERNEL
extern struct loadavg averunnable;
struct pcred;
int dosetrlimit(struct lwp *, struct proc *, int, struct rlimit *);
int donice(struct lwp *, struct proc *, int);
#else
#include <sys/cdefs.h>
__BEGIN_DECLS
int getpriority(int, id_t);
int getrlimit(int, struct rlimit *);
int getrusage(int, struct rusage *);
int setpriority(int, id_t, int);
int setrlimit(int, const struct rlimit *);
__END_DECLS
#endif /* _KERNEL */
#endif /* !_SYS_RESOURCE_H_ */