top(1): Support wider terminals (Bug 2448)
[dragonfly.git] / contrib / top / top.h
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1/*
2 * Copyright (c) 1984 through 2008, William LeFebvre
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 are met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * * Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following disclaimer
13 * in the documentation and/or other materials provided with the
14 * distribution.
15 *
16 * * Neither the name of William LeFebvre nor the names of other
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * Top - a top users display for Berkeley Unix
35 *
36 * General (global) definitions
37 */
38
39#ifndef _TOP_H_
40#define _TOP_H_
41
42#include <sys/time.h>
43
44/* Maximum number of columns allowed for display */
fa9c57c0 45#define MAX_COLS 512
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46
47/* Log base 2 of 1024 is 10 (2^10 == 1024) */
48#define LOG1024 10
49
50/* Special atoi routine returns either a non-negative number or one of: */
51#define Infinity -1
52#define Invalid -2
53
54/* maximum number we can have */
55#define Largest 0x7fffffff
56
57/*
58 * The entire display is based on these next numbers being defined as is.
59 */
60
61#define NUM_AVERAGES 3
62
63struct ext_decl {
64 int (*f_minibar)(char *, int);
65 int (*f_display)(char *, int);
66};
67
68/*
69 * "Table_size" defines the size of the hash tables used to map uid to
70 * username. Things will work best if the number is a prime number.
71 * We use a number that should be suitable for most installations.
72 */
73#ifndef Table_size
74#define Table_size 8191
75#endif
76
77void gettime(struct timeval *);
78void quit(int);
79
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80int n_cpus;
81int enable_ncpus;
82
63d92323 83#endif /* _TOP_H_ */