1/*	$NetBSD: mbufs.c,v 1.14 2006/10/22 16:43:24 christos Exp $	*/
2
3/*-
4 * Copyright (c) 1980, 1992, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33#ifndef lint
34#if 0
35static char sccsid[] = "@(#)mbufs.c	8.1 (Berkeley) 6/6/93";
36#endif
37__RCSID("$NetBSD: mbufs.c,v 1.14 2006/10/22 16:43:24 christos Exp $");
38#endif /* not lint */
39
40#include <sys/param.h>
41#include <sys/mbuf.h>
42
43#include <stdlib.h>
44
45#include "systat.h"
46#include "extern.h"
47
48static struct mbstat *mb;
49
50const char *mtnames[] = {
51	"free",
52	"data",
53	"headers",
54	"sockets",
55	"pcbs",
56	"routes",
57	"hosts",
58	"arps",
59	"socknames",
60	"zombies",
61	"sockopts",
62	"frags",
63	"rights",
64	"ifaddrs",
65};
66
67#define	NNAMES	(sizeof (mtnames) / sizeof (mtnames[0]))
68
69WINDOW *
70openmbufs(void)
71{
72
73	return (subwin(stdscr, -1, 0, 5, 0));
74}
75
76void
77closembufs(WINDOW *w)
78{
79
80	if (w == NULL)
81		return;
82	wclear(w);
83	wrefresh(w);
84	delwin(w);
85}
86
87void
88labelmbufs(void)
89{
90
91	wmove(wnd, 0, 0); wclrtoeol(wnd);
92	mvwaddstr(wnd, 0, 10,
93	    "/0   /5   /10  /15  /20  /25  /30  /35  /40  /45  /50  /55  /60");
94}
95
96void
97showmbufs(void)
98{
99	int i, j, max, idx;
100	char buf[10];
101
102	if (mb == 0)
103		return;
104	for (j = 0; j < getmaxy(wnd); j++) {
105		max = 0, idx = -1;
106		for (i = 0; i < getmaxy(wnd); i++)
107			if (mb->m_mtypes[i] > max) {
108				max = mb->m_mtypes[i];
109				idx = i;
110			}
111		if (max == 0)
112			break;
113		if (j > (int)NNAMES)
114			mvwprintw(wnd, 1+j, 0, "%10d", idx);
115		else
116			mvwprintw(wnd, 1+j, 0, "%-10.10s", mtnames[idx]);
117		wmove(wnd, 1 + j, 10);
118		if (max > 60) {
119			snprintf(buf, sizeof buf, " %5d", max);
120			max = 60;
121			while (max--)
122				waddch(wnd, 'X');
123			waddstr(wnd, buf);
124		} else {
125			wclrtoeol(wnd);
126			whline(wnd, 'X', max);
127		}
128		mb->m_mtypes[idx] = 0;
129	}
130	wmove(wnd, 1+j, 0); wclrtobot(wnd);
131}
132
133static struct nlist namelist[] = {
134#define	X_MBSTAT	0
135	{ .n_name = "_mbstat" },
136	{ .n_name = NULL }
137};
138
139int
140initmbufs(void)
141{
142
143	if (namelist[X_MBSTAT].n_type == 0) {
144		if (kvm_nlist(kd, namelist)) {
145			nlisterr(namelist);
146			return(0);
147		}
148		if (namelist[X_MBSTAT].n_type == 0) {
149			error("No namelist");
150			return(0);
151		}
152	}
153	if (mb == 0)
154		mb = (struct mbstat *)calloc(1, sizeof (*mb));
155	return(1);
156}
157
158void
159fetchmbufs(void)
160{
161
162	if (namelist[X_MBSTAT].n_type == 0)
163		return;
164	NREAD(X_MBSTAT, mb, sizeof (*mb));
165}
166