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c4db7573 | 1 | /* Copyright (C) 1993, 1994, 1995, 1997, 1999 Free Software Foundation, Inc. |
478b92f0 | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
478b92f0 UD |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
28f540f4 | 8 | |
478b92f0 UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Library General Public License for more details. | |
28f540f4 | 13 | |
478b92f0 UD |
14 | You should have received a copy of the GNU Library General Public |
15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
28f540f4 RM |
18 | |
19 | /* This file is deprecated and is provided only for compatibility with | |
20 | Unix systems. It is unwise to include this file on programs which | |
21 | are intended only for GNU systems. | |
22 | ||
23 | Parts from: | |
24 | ||
25 | * Copyright (c) 1982, 1986, 1989 The Regents of the University of California. | |
26 | * All rights reserved. | |
27 | * | |
28 | * Redistribution and use in source and binary forms, with or without | |
29 | * modification, are permitted provided that the following conditions | |
30 | * are met: | |
31 | * 1. Redistributions of source code must retain the above copyright | |
32 | * notice, this list of conditions and the following disclaimer. | |
33 | * 2. Redistributions in binary form must reproduce the above copyright | |
34 | * notice, this list of conditions and the following disclaimer in the | |
35 | * documentation and/or other materials provided with the distribution. | |
28f540f4 RM |
36 | * 4. Neither the name of the University nor the names of its contributors |
37 | * may be used to endorse or promote products derived from this software | |
38 | * without specific prior written permission. | |
39 | * | |
40 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
50 | * SUCH DAMAGE. | |
51 | * | |
52 | * @(#)param.h 7.23 (Berkeley) 5/6/91 | |
53 | */ | |
54 | ||
55 | ||
56 | #ifndef _SYS_PARAM_H | |
57 | ||
58 | #define _SYS_PARAM_H 1 | |
59 | #include <features.h> | |
60 | ||
61 | #define __need_NULL | |
62 | #include <stddef.h> | |
63 | ||
64 | #include <sys/types.h> | |
65 | #include <errno.h> | |
66 | #include <signal.h> | |
67 | #include <endian.h> | |
68 | #include <limits.h> | |
69 | #ifdef notyet | |
dfd2257a | 70 | # include <ufs/param.h> |
28f540f4 RM |
71 | #endif |
72 | ||
73 | ||
74 | /* What versions of BSD we are compatible with. */ | |
75 | #define BSD 199306 /* System version (year & month). */ | |
76 | #define BSD4_3 1 | |
77 | #define BSD4_4 1 | |
78 | ||
79 | #define GNU 1994100 /* GNU version (year, month, and release). */ | |
80 | ||
81 | ||
82 | /* BSD names for some <limits.h> values. We do not define the BSD names | |
83 | for the values which are not statically limited, such as NOFILE. */ | |
84 | ||
756245d7 | 85 | #define NBBY CHAR_BIT |
28f540f4 RM |
86 | #define NGROUPS NGROUPS_MAX |
87 | #define MAXSYMLINKS SYMLOOP_MAX | |
88 | #define CANBSIZ MAX_CANON /* XXX ? */ | |
89 | ||
90 | /* ARG_MAX is unlimited, but we define NCARGS for BSD programs that want to | |
91 | compare against some fixed limit. */ | |
92 | #define NCARGS INT_MAX | |
93 | ||
94 | /* There is nothing quite equivalent in GNU to Unix "mounts", but there is | |
95 | no limit on the number of simultaneously attached filesystems. */ | |
96 | #define NMOUNT INT_MAX | |
97 | ||
98 | ||
99 | /* Magical constants. */ | |
100 | #define NOGROUP 65535 /* Marker for empty group set member. */ | |
101 | #define NODEV ((dev_t) -1) /* Non-existent device. */ | |
102 | ||
103 | ||
104 | /* Bit map related macros. */ | |
105 | #define setbit(a,i) ((a)[(i)/NBBY] |= 1<<((i)%NBBY)) | |
106 | #define clrbit(a,i) ((a)[(i)/NBBY] &= ~(1<<((i)%NBBY))) | |
107 | #define isset(a,i) ((a)[(i)/NBBY] & (1<<((i)%NBBY))) | |
108 | #define isclr(a,i) (((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0) | |
109 | ||
110 | /* Macros for counting and rounding. */ | |
111 | #ifndef howmany | |
dfd2257a | 112 | # define howmany(x, y) (((x)+((y)-1))/(y)) |
28f540f4 RM |
113 | #endif |
114 | #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) | |
115 | #define powerof2(x) ((((x)-1)&(x))==0) | |
116 | ||
117 | /* Macros for min/max. */ | |
118 | #define MIN(a,b) (((a)<(b))?(a):(b)) | |
119 | #define MAX(a,b) (((a)>(b))?(a):(b)) | |
120 | ||
121 | ||
122 | /* Scale factor for scaled integers used to count %cpu time and load avgs. | |
123 | ||
124 | The number of CPU `tick's that map to a unique `%age' can be expressed | |
125 | by the formula (1 / (2 ^ (FSHIFT - 11))). The maximum load average that | |
126 | can be calculated (assuming 32 bits) can be closely approximated using | |
127 | the formula (2 ^ (2 * (16 - FSHIFT))) for (FSHIFT < 15). */ | |
128 | ||
129 | #define FSHIFT 11 /* Bits to right of fixed binary point. */ | |
130 | #define FSCALE (1<<FSHIFT) | |
131 | ||
132 | #endif /* sys/param.h */ |