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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
26: /*
27: * Copyright (c) 1982, 1986, 1993
28: * The Regents of the University of California. All rights reserved.
29: *
30: * Redistribution and use in source and binary forms, with or without
31: * modification, are permitted provided that the following conditions
32: * are met:
33: * 1. Redistributions of source code must retain the above copyright
34: * notice, this list of conditions and the following disclaimer.
35: * 2. Redistributions in binary form must reproduce the above copyright
36: * notice, this list of conditions and the following disclaimer in the
37: * documentation and/or other materials provided with the distribution.
38: * 3. All advertising materials mentioning features or use of this software
39: * must display the following acknowledgement:
40: * This product includes software developed by the University of
41: * California, Berkeley and its contributors.
42: * 4. Neither the name of the University nor the names of its contributors
43: * may be used to endorse or promote products derived from this software
44: * without specific prior written permission.
45: *
46: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
47: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
50: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56: * SUCH DAMAGE.
57: *
58: * @(#)resource.h 8.4 (Berkeley) 1/9/95
59: */
60:
61: #ifndef _SYS_RESOURCE_H_
62: #define _SYS_RESOURCE_H_
63:
64: /*
65: * Process priority specifications to get/setpriority.
66: */
67: #define PRIO_MIN -20
68: #define PRIO_MAX 20
69:
70: #define PRIO_PROCESS 0
71: #define PRIO_PGRP 1
72: #define PRIO_USER 2
73:
74: /*
75: * Resource utilization information.
76: */
77:
78: #define RUSAGE_SELF 0
79: #define RUSAGE_CHILDREN -1
80:
81: struct rusage {
82: struct timeval ru_utime; /* user time used */
83: struct timeval ru_stime; /* system time used */
84: long ru_maxrss; /* max resident set size */
85: #define ru_first ru_ixrss
86: long ru_ixrss; /* integral shared memory size */
87: long ru_idrss; /* integral unshared data " */
88: long ru_isrss; /* integral unshared stack " */
89: long ru_minflt; /* page reclaims */
90: long ru_majflt; /* page faults */
91: long ru_nswap; /* swaps */
92: long ru_inblock; /* block input operations */
93: long ru_oublock; /* block output operations */
94: long ru_msgsnd; /* messages sent */
95: long ru_msgrcv; /* messages received */
96: long ru_nsignals; /* signals received */
97: long ru_nvcsw; /* voluntary context switches */
98: long ru_nivcsw; /* involuntary " */
99: #define ru_last ru_nivcsw
100: };
101:
102: /*
103: * Resource limits
104: */
105: #define RLIMIT_CPU 0 /* cpu time in milliseconds */
106: #define RLIMIT_FSIZE 1 /* maximum file size */
107: #define RLIMIT_DATA 2 /* data size */
108: #define RLIMIT_STACK 3 /* stack size */
109: #define RLIMIT_CORE 4 /* core file size */
110: #define RLIMIT_RSS 5 /* resident set size */
111: #define RLIMIT_MEMLOCK 6 /* locked-in-memory address space */
112: #define RLIMIT_NPROC 7 /* number of processes */
113: #define RLIMIT_NOFILE 8 /* number of open files */
114:
115: #define RLIM_NLIMITS 9 /* number of resource limits */
116:
117: #define RLIM_INFINITY (((u_quad_t)1 << 63) - 1)
118:
119: struct orlimit {
120: int32_t rlim_cur; /* current (soft) limit */
121: int32_t rlim_max; /* maximum value for rlim_cur */
122: };
123:
124: struct rlimit {
125: rlim_t rlim_cur; /* current (soft) limit */
126: rlim_t rlim_max; /* maximum value for rlim_cur */
127: };
128:
129: /* Load average structure. */
130: struct loadavg {
131: fixpt_t ldavg[3];
132: long fscale;
133: };
134:
135: #ifdef _KERNEL
136: extern struct loadavg averunnable;
137: #define LSCALE 1000 /* scaling for "fixed point" arithmetic */
138: #else
139: #include <sys/cdefs.h>
140:
141: __BEGIN_DECLS
142: int getpriority __P((int, int));
143: int getrlimit __P((int, struct rlimit *));
144: int getrusage __P((int, struct rusage *));
145: int setpriority __P((int, int, int));
146: int setrlimit __P((int, const struct rlimit *));
147: __END_DECLS
148:
149: #endif /* _KERNEL */
150: #endif /* !_SYS_RESOURCE_H_ */
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