MFC:
[dragonfly.git] / bin / ps / nlist.c
blob11e013e88f3938fc07fd98cc66736f92437e8941
1 /*-
2 * Copyright (c) 1990, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
33 * @(#)nlist.c 8.4 (Berkeley) 4/2/94
34 * $FreeBSD: src/bin/ps/nlist.c,v 1.12.6.2 2001/08/01 05:04:48 obrien Exp $
35 * $DragonFly: src/bin/ps/nlist.c,v 1.4 2004/03/19 17:47:49 cpressey Exp $
38 #include <sys/types.h>
39 #include <sys/time.h>
40 #include <sys/resource.h>
41 #include <sys/sysctl.h>
43 #include <stddef.h>
45 #include "ps.h"
47 fixpt_t ccpu; /* kernel _ccpu variable */
48 int nlistread; /* if nlist already read. */
49 int mempages; /* number of pages of phys. memory */
50 int fscale; /* kernel _fscale variable */
52 int
53 donlist(void)
55 size_t oldlen;
57 oldlen = sizeof(ccpu);
58 if (sysctlbyname("kern.ccpu", &ccpu, &oldlen, NULL, 0) < 0)
59 return (1);
60 oldlen = sizeof(fscale);
61 if (sysctlbyname("kern.fscale", &fscale, &oldlen, NULL, 0) < 0)
62 return (1);
63 oldlen = sizeof(mempages);
64 if (sysctlbyname("hw.availpages", &mempages, &oldlen, NULL, 0) < 0)
65 return (1);
66 nlistread = 1;
67 return (0);