199 lines
4.3 KiB
C
199 lines
4.3 KiB
C
/*-
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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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__FBSDID("$FreeBSD$");
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#ifdef lint
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static const char sccsid[] = "@(#)swap.c 8.3 (Berkeley) 4/29/95";
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#endif
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/*
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* swapinfo - based on a program of the same name by Kevin Lahey
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*/
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#include <sys/param.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <kvm.h>
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#include <nlist.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <err.h>
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#include "systat.h"
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#include "extern.h"
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kvm_t *kd;
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static long blocksize;
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static int hlen;
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WINDOW *
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openswap()
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{
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return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
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}
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void
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closeswap(w)
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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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/*
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* The meat of all the swap stuff is stolen from pstat(8)'s
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* swapmode(), which is based on a program called swapinfo written by
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* Kevin Lahey <kml@rokkaku.atl.ga.us>.
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*/
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int
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initswap()
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{
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char msgbuf[BUFSIZ];
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static int once = 0;
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struct kvm_swap dummy;
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if (once)
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return (1);
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if (kvm_getswapinfo(kd, &dummy, 1, 0) < 0) {
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snprintf(msgbuf, sizeof(msgbuf), "systat: kvm_getswapinfo failed");
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error("%s", msgbuf);
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return (0);
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}
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once = 1;
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return (1);
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}
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static struct kvm_swap kvmsw[16];
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static int kvnsw;
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void
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fetchswap()
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{
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kvnsw = kvm_getswapinfo(kd, kvmsw, 16, 0);
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}
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void
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labelswap()
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{
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char *header;
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int row, i;
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fetchswap();
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row = 0;
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wmove(wnd, row, 0); wclrtobot(wnd);
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header = getbsize(&hlen, &blocksize);
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mvwprintw(wnd, row++, 0, "%-5s%*s%9s %55s",
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"Disk", hlen, header, "Used",
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"/0% /10% /20% /30% /40% /50% /60% /70% /80% /90% /100");
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for (i = 0; i < kvnsw; ++i) {
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mvwprintw(wnd, i + 1, 0, "%-5s", kvmsw[i].ksw_devname);
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}
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}
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void
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showswap()
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{
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int i;
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int pagesize = getpagesize();
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#define CONVERT(v) ((int)((quad_t)(v) * pagesize / blocksize))
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for (i = 0; i <= kvnsw; ++i) {
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int lcol = 5;
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int count;
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if (i == kvnsw) {
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if (kvnsw == 1)
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break;
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mvwprintw(
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wnd,
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i + 1,
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lcol,
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"%-5s",
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"Total"
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);
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lcol += 5;
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}
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if (kvmsw[i].ksw_total == 0) {
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mvwprintw(
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wnd,
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i + 1,
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lcol + 5,
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"(swap not configured)"
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);
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continue;
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}
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mvwprintw(
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wnd,
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i + 1,
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lcol,
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"%*d",
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hlen,
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CONVERT(kvmsw[i].ksw_total)
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);
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lcol += hlen;
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mvwprintw(
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wnd,
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i + 1,
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lcol,
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"%9d ",
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CONVERT(kvmsw[i].ksw_used)
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);
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count = (int)((double)kvmsw[i].ksw_used * 49.999 /
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(double)kvmsw[i].ksw_total);
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while (count >= 0) {
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waddch(wnd, 'X');
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--count;
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}
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}
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}
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