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1 | /* | |
2 | * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. | |
3 | * | |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
5 | * | |
6 | * This file contains Original Code and/or Modifications of Original Code | |
7 | * as defined in and that are subject to the Apple Public Source License | |
8 | * Version 2.0 (the 'License'). You may not use this file except in | |
9 | * compliance with the License. The rights granted to you under the License | |
10 | * may not be used to create, or enable the creation or redistribution of, | |
11 | * unlawful or unlicensed copies of an Apple operating system, or to | |
12 | * circumvent, violate, or enable the circumvention or violation of, any | |
13 | * terms of an Apple operating system software license agreement. | |
14 | * | |
15 | * Please obtain a copy of the License at | |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
17 | * | |
18 | * The Original Code and all software distributed under the License are | |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
23 | * Please see the License for the specific language governing rights and | |
24 | * limitations under the License. | |
25 | * | |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
27 | */ | |
28 | /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ | |
29 | /*- | |
30 | * Copyright (c) 1990, 1993 | |
31 | * The Regents of the University of California. All rights reserved. | |
32 | * (c) UNIX System Laboratories, Inc. | |
33 | * All or some portions of this file are derived from material licensed | |
34 | * to the University of California by American Telephone and Telegraph | |
35 | * Co. or Unix System Laboratories, Inc. and are reproduced herein with | |
36 | * the permission of UNIX System Laboratories, Inc. | |
37 | * | |
38 | * Redistribution and use in source and binary forms, with or without | |
39 | * modification, are permitted provided that the following conditions | |
40 | * are met: | |
41 | * 1. Redistributions of source code must retain the above copyright | |
42 | * notice, this list of conditions and the following disclaimer. | |
43 | * 2. Redistributions in binary form must reproduce the above copyright | |
44 | * notice, this list of conditions and the following disclaimer in the | |
45 | * documentation and/or other materials provided with the distribution. | |
46 | * 3. All advertising materials mentioning features or use of this software | |
47 | * must display the following acknowledgement: | |
48 | * This product includes software developed by the University of | |
49 | * California, Berkeley and its contributors. | |
50 | * 4. Neither the name of the University nor the names of its contributors | |
51 | * may be used to endorse or promote products derived from this software | |
52 | * without specific prior written permission. | |
53 | * | |
54 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
55 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
56 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
57 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
58 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
59 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
60 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
61 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
62 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
63 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
64 | * SUCH DAMAGE. | |
65 | * | |
66 | * @(#)kernel.h 8.3 (Berkeley) 1/21/94 | |
67 | */ | |
68 | #ifndef _SYS_KERNEL_H_ | |
69 | #define _SYS_KERNEL_H_ | |
70 | ||
71 | #include <sys/appleapiopts.h> | |
72 | ||
73 | #ifdef KERNEL | |
74 | ||
75 | #include <sys/param.h> | |
76 | ||
77 | #ifdef BSD_KERNEL_PRIVATE | |
78 | /* Global variables for the kernel. */ | |
79 | ||
80 | /* 1.1 */ | |
81 | extern long hostid; | |
82 | extern char hostname[MAXHOSTNAMELEN]; | |
83 | extern int hostnamelen; | |
84 | extern char domainname[MAXHOSTNAMELEN]; | |
85 | extern int domainnamelen; | |
86 | ||
87 | /* 1.2 */ | |
88 | extern int stathz; /* statistics clock's frequency */ | |
89 | extern int profhz; /* profiling clock's frequency */ | |
90 | #endif /* BSD_KERNEL_PRIVATE */ | |
91 | ||
92 | ||
93 | #ifdef KERNEL_PRIVATE | |
94 | extern int lbolt; /* once a second sleep address */ | |
95 | ||
96 | extern struct timezone tz; /* XXX */ | |
97 | ||
98 | extern int tick; /* usec per tick (1000000 / hz) */ | |
99 | extern int hz; /* system clock's frequency */ | |
100 | ||
101 | #endif /* KERNEL_PRIVATE */ | |
102 | ||
103 | #endif /* KERNEL */ | |
104 | ||
105 | #endif /* !_SYS_KERNEL_H_ */ |