Annotation of sys/sys/resource.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: resource.h,v 1.7 2003/12/11 23:02:30 millert Exp $ */
2: /* $NetBSD: resource.h,v 1.14 1996/02/09 18:25:27 christos Exp $ */
3:
4: /*
5: * Copyright (c) 1982, 1986, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the University nor the names of its contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: * @(#)resource.h 8.2 (Berkeley) 1/4/94
33: */
34:
35: #ifndef _SYS_RESOURCE_H_
36: #define _SYS_RESOURCE_H_
37:
38: /*
39: * Process priority specifications to get/setpriority.
40: */
41: #define PRIO_MIN -20
42: #define PRIO_MAX 20
43:
44: #define PRIO_PROCESS 0
45: #define PRIO_PGRP 1
46: #define PRIO_USER 2
47:
48: /*
49: * Resource utilization information.
50: */
51:
52: #define RUSAGE_SELF 0
53: #define RUSAGE_CHILDREN -1
54:
55: struct rusage {
56: struct timeval ru_utime; /* user time used */
57: struct timeval ru_stime; /* system time used */
58: long ru_maxrss; /* max resident set size */
59: #define ru_first ru_ixrss
60: long ru_ixrss; /* integral shared text memory size */
61: long ru_idrss; /* integral unshared data " */
62: long ru_isrss; /* integral unshared stack " */
63: long ru_minflt; /* page reclaims */
64: long ru_majflt; /* page faults */
65: long ru_nswap; /* swaps */
66: long ru_inblock; /* block input operations */
67: long ru_oublock; /* block output operations */
68: long ru_msgsnd; /* messages sent */
69: long ru_msgrcv; /* messages received */
70: long ru_nsignals; /* signals received */
71: long ru_nvcsw; /* voluntary context switches */
72: long ru_nivcsw; /* involuntary " */
73: #define ru_last ru_nivcsw
74: };
75:
76: /*
77: * Resource limits
78: */
79: #define RLIMIT_CPU 0 /* cpu time in milliseconds */
80: #define RLIMIT_FSIZE 1 /* maximum file size */
81: #define RLIMIT_DATA 2 /* data size */
82: #define RLIMIT_STACK 3 /* stack size */
83: #define RLIMIT_CORE 4 /* core file size */
84: #define RLIMIT_RSS 5 /* resident set size */
85: #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
86: #define RLIMIT_NPROC 7 /* number of processes */
87: #define RLIMIT_NOFILE 8 /* number of open files */
88:
89: #define RLIM_NLIMITS 9 /* number of resource limits */
90:
91: #define RLIM_INFINITY (((rlim_t)1 << 63) - 1)
92: #define RLIM_SAVED_MAX RLIM_INFINITY
93: #define RLIM_SAVED_CUR RLIM_INFINITY
94:
95: struct orlimit {
96: int32_t rlim_cur; /* current (soft) limit */
97: int32_t rlim_max; /* maximum value for rlim_cur */
98: };
99:
100: struct rlimit {
101: rlim_t rlim_cur; /* current (soft) limit */
102: rlim_t rlim_max; /* maximum value for rlim_cur */
103: };
104:
105: /* Load average structure. */
106: struct loadavg {
107: fixpt_t ldavg[3];
108: long fscale;
109: };
110:
111: #ifdef _KERNEL
112: extern struct loadavg averunnable;
113: int dosetrlimit(struct proc *, u_int, struct rlimit *);
114: int donice(struct proc *, struct proc *, int);
115:
116: #else
117: #include <sys/cdefs.h>
118:
119: __BEGIN_DECLS
120: int getpriority(int, id_t);
121: int getrlimit(int, struct rlimit *);
122: int getrusage(int, struct rusage *);
123: int setpriority(int, id_t, int);
124: int setrlimit(int, const struct rlimit *);
125: __END_DECLS
126:
127: #endif /* _KERNEL */
128: #endif /* !_SYS_RESOURCE_H_ */
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