Annotation of src/usr.bin/systat/mbufs.c, Revision 1.5
1.5 ! ericj 1: /* $OpenBSD: mbufs.c,v 1.4 1997/12/19 09:03:32 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: mbufs.c,v 1.2 1995/01/20 08:52:02 jtc Exp $ */
3:
4: /*-
5: * Copyright (c) 1980, 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: #if 0
39: static char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93";
40: #endif
1.5 ! ericj 41: static char rcsid[] = "$OpenBSD: mbufs.c,v 1.4 1997/12/19 09:03:32 deraadt Exp $";
1.1 deraadt 42: #endif /* not lint */
43:
44: #include <sys/param.h>
45: #include <sys/types.h>
46: #include <sys/mbuf.h>
47:
48: #include <stdlib.h>
49: #include <string.h>
50: #include <nlist.h>
51: #include <paths.h>
52: #include "systat.h"
53: #include "extern.h"
54:
55: static struct mbstat *mb;
56:
57: char *mtnames[] = {
58: "free",
59: "data",
60: "headers",
61: "sockets",
62: "pcbs",
63: "routes",
64: "hosts",
65: "arps",
66: "socknames",
67: "zombies",
68: "sockopts",
69: "frags",
70: "rights",
71: "ifaddrs",
72: };
73:
74: #define NNAMES (sizeof (mtnames) / sizeof (mtnames[0]))
75:
76: WINDOW *
77: openmbufs()
78: {
79: return (subwin(stdscr, LINES-5-1, 0, 5, 0));
80: }
81:
82: void
83: closembufs(w)
84: WINDOW *w;
85: {
86: if (w == NULL)
87: return;
88: wclear(w);
89: wrefresh(w);
90: delwin(w);
91: }
92:
93: void
94: labelmbufs()
95: {
96: wmove(wnd, 0, 0); wclrtoeol(wnd);
97: mvwaddstr(wnd, 0, 10,
98: "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60");
99: }
100:
101: void
102: showmbufs()
103: {
104: register int i, j, max, index;
1.4 deraadt 105: char buf[13];
1.1 deraadt 106:
107: if (mb == 0)
108: return;
1.2 mickey 109: for (j = 0; j < wnd->_maxy; j++) {
1.1 deraadt 110: max = 0, index = -1;
1.2 mickey 111: for (i = 0; i < wnd->_maxy; i++)
1.1 deraadt 112: if (mb->m_mtypes[i] > max) {
113: max = mb->m_mtypes[i];
114: index = i;
115: }
116: if (max == 0)
117: break;
118: if (j > NNAMES)
119: mvwprintw(wnd, 1+j, 0, "%10d", index);
120: else
121: mvwprintw(wnd, 1+j, 0, "%-10.10s", mtnames[index]);
122: wmove(wnd, 1 + j, 10);
123: if (max > 60) {
1.4 deraadt 124: snprintf(buf, sizeof buf, " %d", max);
1.1 deraadt 125: max = 60;
126: while (max--)
127: waddch(wnd, 'X');
128: waddstr(wnd, buf);
129: } else {
130: while (max--)
131: waddch(wnd, 'X');
132: wclrtoeol(wnd);
133: }
134: mb->m_mtypes[index] = 0;
135: }
136: wmove(wnd, 1+j, 0); wclrtobot(wnd);
137: }
138:
139: static struct nlist namelist[] = {
140: #define X_MBSTAT 0
141: { "_mbstat" },
142: { "" }
143: };
144:
145: int
146: initmbufs()
147: {
1.5 ! ericj 148: int ret;
! 149:
1.1 deraadt 150: if (namelist[X_MBSTAT].n_type == 0) {
1.5 ! ericj 151: if ((ret = kvm_nlist(kd, namelist)) == -1)
! 152: errx(1, "%s", kvm_geterr(kd));
! 153: else if (ret)
1.1 deraadt 154: nlisterr(namelist);
155: if (namelist[X_MBSTAT].n_type == 0) {
156: error("namelist on %s failed", _PATH_UNIX);
157: return(0);
158: }
159: }
160: if (mb == 0)
161: mb = (struct mbstat *)calloc(1, sizeof (*mb));
162: return(1);
163: }
164:
165: void
166: fetchmbufs()
167: {
168: if (namelist[X_MBSTAT].n_type == 0)
169: return;
170: NREAD(X_MBSTAT, mb, sizeof (*mb));
171: }
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