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/*-
* Copyright (c) 1980, 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifdef lint
static const char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93";
#endif
#include <sys/param.h>
#include <sys/types.h>
#include <sys/mbuf.h>
#include <sys/sysctl.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
#include "systat.h"
#include "extern.h"
static struct mbstat *mbstat;
static long *m_mbtypes;
static short nmbtypes;
static struct mtnames {
short mt_type;
const char *mt_name;
} mtnames[] = {
{ MT_DATA, "data"},
{ MT_HEADER, "headers"},
{ MT_SONAME, "socknames"},
{ MT_CONTROL, "control"},
{ MT_OOBDATA, "oobdata"}
};
#define NNAMES (sizeof (mtnames) / sizeof (mtnames[0]))
WINDOW *
openmbufs()
{
return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
}
void
closembufs(w)
WINDOW *w;
{
if (w == NULL)
return;
wclear(w);
wrefresh(w);
delwin(w);
}
void
labelmbufs()
{
wmove(wnd, 0, 0); wclrtoeol(wnd);
mvwaddstr(wnd, 0, 10,
"/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60");
}
void
showmbufs()
{
int i, j, max, idx;
u_long totmbufs;
char buf[10];
const char *mtname;
totmbufs = mbstat->m_mbufs;
/*
* Print totals for different mbuf types.
*/
for (j = 0; j < wnd->_maxy; j++) {
max = 0, idx = -1;
for (i = 0; i < wnd->_maxy; i++) {
if (i == MT_NOTMBUF)
continue;
if (i >= nmbtypes)
break;
if (m_mbtypes[i] > max) {
max = m_mbtypes[i];
idx = i;
}
}
if (max == 0)
break;
mtname = NULL;
for (i = 0; i < (int)NNAMES; i++)
if (mtnames[i].mt_type == idx)
mtname = mtnames[i].mt_name;
if (mtname == NULL)
mvwprintw(wnd, 1+j, 0, "%10d", idx);
else
mvwprintw(wnd, 1+j, 0, "%-10.10s", mtname);
wmove(wnd, 1 + j, 10);
if (max > 60) {
snprintf(buf, sizeof(buf), " %d", max);
max = 60;
while (max--)
waddch(wnd, 'X');
waddstr(wnd, buf);
} else
while (max--)
waddch(wnd, 'X');
wclrtoeol(wnd);
m_mbtypes[idx] = 0;
}
/*
* Print total number of free mbufs.
*/
if (totmbufs > 0) {
mvwprintw(wnd, 1+j, 0, "%-10.10s", "Mbufs");
if (totmbufs > 60) {
snprintf(buf, sizeof(buf), " %lu", totmbufs);
totmbufs = 60;
while(totmbufs--)
waddch(wnd, 'X');
waddstr(wnd, buf);
} else {
while(totmbufs--)
waddch(wnd, 'X');
}
wclrtoeol(wnd);
j++;
}
wmove(wnd, 1+j, 0); wclrtobot(wnd);
}
int
initmbufs()
{
size_t len;
len = sizeof *mbstat;
if ((mbstat = malloc(len)) == NULL) {
error("malloc mbstat failed");
return 0;
}
if (sysctlbyname("kern.ipc.mbstat", mbstat, &len, NULL, 0) < 0) {
error("sysctl retrieving mbstat");
return 0;
}
nmbtypes = mbstat->m_numtypes;
if ((m_mbtypes = calloc(nmbtypes, sizeof(long *))) == NULL) {
error("calloc m_mbtypes failed");
return 0;
}
return 1;
}
void
fetchmbufs()
{
size_t len;
len = sizeof *mbstat;
if (sysctlbyname("kern.ipc.mbstat", mbstat, &len, NULL, 0) < 0)
printw("sysctl: mbstat: %s", strerror(errno));
}
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