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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.
* 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.
*/
#if 0
#ifndef lint
static char sccsid[] = "@(#)pigs.c 8.2 (Berkeley) 9/23/93";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* Pigs display from Bill Reeves at Lucasfilm
*/
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/sysctl.h>
#include <sys/time.h>
#include <sys/user.h>
#include <curses.h>
#include <math.h>
#include <pwd.h>
#include <stdlib.h>
#include "systat.h"
#include "extern.h"
int compar(const void *, const void *);
static int nproc;
static struct p_times {
float pt_pctcpu;
struct kinfo_proc *pt_kp;
} *pt;
static int fscale;
static double lccpu;
WINDOW *
openpigs(void)
{
return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
}
void
closepigs(WINDOW *w)
{
if (w == NULL)
return;
wclear(w);
wrefresh(w);
delwin(w);
}
void
showpigs(void)
{
int i, j, y, k;
const char *uname, *pname;
char pidname[30];
if (pt == NULL)
return;
qsort(pt, nproc, sizeof (struct p_times), compar);
y = 1;
i = nproc;
if (i > wnd->_maxy-1)
i = wnd->_maxy-1;
for (k = 0; i > 0 && pt[k].pt_pctcpu > 0.01; i--, y++, k++) {
uname = user_from_uid(pt[k].pt_kp->ki_uid, 0);
pname = pt[k].pt_kp->ki_comm;
wmove(wnd, y, 0);
wclrtoeol(wnd);
mvwaddstr(wnd, y, 0, uname);
snprintf(pidname, sizeof(pidname), "%10.10s", pname);
mvwaddstr(wnd, y, 9, pidname);
wmove(wnd, y, 20);
for (j = pt[k].pt_pctcpu * 50 + 0.5; j > 0; j--)
waddch(wnd, 'X');
}
wmove(wnd, y, 0); wclrtobot(wnd);
}
int
initpigs(void)
{
fixpt_t ccpu;
size_t len;
int err;
len = sizeof(ccpu);
err = sysctlbyname("kern.ccpu", &ccpu, &len, NULL, 0);
if (err || len != sizeof(ccpu)) {
perror("kern.ccpu");
return (0);
}
len = sizeof(fscale);
err = sysctlbyname("kern.fscale", &fscale, &len, NULL, 0);
if (err || len != sizeof(fscale)) {
perror("kern.fscale");
return (0);
}
lccpu = log((double) ccpu / fscale);
return(1);
}
void
fetchpigs(void)
{
int i;
float ftime;
float *pctp;
struct kinfo_proc *kpp;
static int lastnproc = 0;
if ((kpp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nproc)) == NULL) {
error("%s", kvm_geterr(kd));
if (pt)
free(pt);
return;
}
if (nproc > lastnproc) {
free(pt);
if ((pt =
malloc(nproc * sizeof(struct p_times))) == NULL) {
error("Out of memory");
die(0);
}
}
lastnproc = nproc;
/*
* calculate %cpu for each proc
*/
for (i = 0; i < nproc; i++) {
pt[i].pt_kp = &kpp[i];
pctp = &pt[i].pt_pctcpu;
ftime = kpp[i].ki_swtime;
if (ftime == 0 || (kpp[i].ki_flag & P_INMEM) == 0)
*pctp = 0;
else
*pctp = ((double) kpp[i].ki_pctcpu /
fscale) / (1.0 - exp(ftime * lccpu));
}
}
void
labelpigs(void)
{
wmove(wnd, 0, 0);
wclrtoeol(wnd);
mvwaddstr(wnd, 0, 20,
"/0% /10 /20 /30 /40 /50 /60 /70 /80 /90 /100");
}
int
compar(const void *a, const void *b)
{
return (((const struct p_times *) a)->pt_pctcpu >
((const struct p_times *) b)->pt_pctcpu)? -1: 1;
}
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