386BSD 0.1 development
[unix-history] / usr / src / sys.386bsd / sys / resource.h
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1/*
2 * Copyright (c) 1982, 1986 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)resource.h 7.5 (Berkeley) 3/17/91
34 */
35
36#ifndef _RESOURCE_H_
37#define _RESOURCE_H_
38
39/*
40 * Process priority specifications to get/setpriority.
41 */
42#define PRIO_MIN -20
43#define PRIO_MAX 20
44
45#define PRIO_PROCESS 0
46#define PRIO_PGRP 1
47#define PRIO_USER 2
48
49/*
50 * Resource utilization information.
51 */
52
53#define RUSAGE_SELF 0
54#define RUSAGE_CHILDREN -1
55
56struct rusage {
57 struct timeval ru_utime; /* user time used */
58 struct timeval ru_stime; /* system time used */
59 long ru_maxrss; /* max resident set size */
60#define ru_first ru_ixrss
61 long ru_ixrss; /* integral shared memory size */
62 long ru_idrss; /* integral unshared data " */
63 long ru_isrss; /* integral unshared stack " */
64 long ru_minflt; /* page reclaims */
65 long ru_majflt; /* page faults */
66 long ru_nswap; /* swaps */
67 long ru_inblock; /* block input operations */
68 long ru_oublock; /* block output operations */
69 long ru_msgsnd; /* messages sent */
70 long ru_msgrcv; /* messages received */
71 long ru_nsignals; /* signals received */
72 long ru_nvcsw; /* voluntary context switches */
73 long ru_nivcsw; /* involuntary " */
74#define ru_last ru_nivcsw
75};
76
77/*
78 * Resource limits
79 */
80#define RLIMIT_CPU 0 /* cpu time in milliseconds */
81#define RLIMIT_FSIZE 1 /* maximum file size */
82#define RLIMIT_DATA 2 /* data size */
83#define RLIMIT_STACK 3 /* stack size */
84#define RLIMIT_CORE 4 /* core file size */
85#define RLIMIT_RSS 5 /* resident set size */
86#define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
87#define RLIMIT_NPROC 7 /* number of processes */
88#define RLIMIT_OFILE 8 /* number of open files */
89
90#define RLIM_NLIMITS 9 /* number of resource limits */
91
92#define RLIM_INFINITY 0x7fffffff
93
94struct rlimit {
95 long rlim_cur; /* current (soft) limit */
96 long rlim_max; /* maximum value for rlim_cur */
97};
98
99#ifndef KERNEL
100#include <sys/cdefs.h>
101
102__BEGIN_DECLS
103int getpriority __P((int, int));
104int getrlimit __P((int, struct rlimit *));
105int getrusage __P((int, struct rusage *));
106int setpriority __P((int, int, int));
107int setrlimit __P((int, const struct rlimit *));
108__END_DECLS
109
110#endif /* !KERNEL */
111#endif /* !_RESOURCE_H_ */