136 lines
3.3 KiB
C
136 lines
3.3 KiB
C
/* $NetBSD: mbufs.c,v 1.16 2012/11/23 01:43:10 christos Exp $ */
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/*-
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* Copyright (c) 1980, 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93";
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#endif
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__RCSID("$NetBSD: mbufs.c,v 1.16 2012/11/23 01:43:10 christos Exp $");
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#endif /* not lint */
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#include <sys/param.h>
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#define MBUFTYPES
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#include <sys/mbuf.h>
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#include <sys/sysctl.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include "systat.h"
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#include "extern.h"
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static struct mbstat *mb;
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#define NNAMES __arraycount(mbuftypes)
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WINDOW *
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openmbufs(void)
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{
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return (subwin(stdscr, -1, 0, 5, 0));
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}
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void
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closembufs(WINDOW *w)
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{
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if (w == NULL)
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return;
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wclear(w);
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wrefresh(w);
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delwin(w);
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}
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void
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labelmbufs(void)
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{
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wmove(wnd, 0, 0); wclrtoeol(wnd);
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mvwaddstr(wnd, 0, 10,
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"/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60");
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}
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void
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showmbufs(void)
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{
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int i, j, max, idx;
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char buf[10];
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if (mb == 0)
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return;
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for (j = 1; j <= getmaxy(wnd); j++) {
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max = 0, idx = -1;
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for (i = 0; i < getmaxy(wnd); i++)
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if (mb->m_mtypes[i] > max) {
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max = mb->m_mtypes[i];
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idx = i;
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}
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if (max == 0)
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break;
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if (j >= (int)NNAMES)
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mvwprintw(wnd, j, 0, "%10d", idx);
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else
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mvwprintw(wnd, j, 0, "%-10.10s", &mbuftypes[idx][2]);
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wmove(wnd, j, 10);
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if (max > 60) {
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snprintf(buf, sizeof buf, " %5d", max);
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max = 60;
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while (max--)
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waddch(wnd, 'X');
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waddstr(wnd, buf);
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} else {
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wclrtoeol(wnd);
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whline(wnd, 'X', max);
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}
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mb->m_mtypes[idx] = 0;
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}
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wmove(wnd, j, 0);
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wclrtobot(wnd);
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}
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int
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initmbufs(void)
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{
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if (mb == 0)
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mb = calloc(1, sizeof (*mb));
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return(1);
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}
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void
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fetchmbufs(void)
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{
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size_t len = sizeof(*mb);
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if (sysctlbyname("kern.mbuf.stats", mb, &len, NULL, 0))
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error("error getting \"kern.mbuf.stats\": %s", strerror(errno));
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}
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