294 lines
6.5 KiB
C
294 lines
6.5 KiB
C
/*-
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char copyright[] =
|
|
"@(#) Copyright (c) 1980, 1992, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 6/6/93";
|
|
#endif
|
|
static const char rcsid[] =
|
|
"$Id: main.c,v 1.6 1997/08/13 06:45:10 charnier Exp $";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <err.h>
|
|
#include <locale.h>
|
|
#include <nlist.h>
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include "systat.h"
|
|
#include "extern.h"
|
|
|
|
static struct nlist namelist[] = {
|
|
#define X_FIRST 0
|
|
#define X_HZ 0
|
|
{ "_hz" },
|
|
#define X_STATHZ 1
|
|
{ "_stathz" },
|
|
{ "" }
|
|
};
|
|
static int dellave;
|
|
|
|
kvm_t *kd;
|
|
sig_t sigtstpdfl;
|
|
double avenrun[3];
|
|
int col;
|
|
int naptime = 5;
|
|
int verbose = 1; /* to report kvm read errs */
|
|
int hz, stathz;
|
|
double hertz;
|
|
char c;
|
|
char *namp;
|
|
char hostname[MAXHOSTNAMELEN];
|
|
WINDOW *wnd;
|
|
int CMDLINE;
|
|
|
|
static WINDOW *wload; /* one line window for load average */
|
|
|
|
int
|
|
main(argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
char errbuf[80];
|
|
|
|
(void) setlocale(LC_TIME, "");
|
|
|
|
argc--, argv++;
|
|
while (argc > 0) {
|
|
if (argv[0][0] == '-') {
|
|
struct cmdtab *p;
|
|
|
|
p = lookup(&argv[0][1]);
|
|
if (p == (struct cmdtab *)-1)
|
|
errx(1, "%s: ambiguous request", &argv[0][1]);
|
|
if (p == (struct cmdtab *)0)
|
|
errx(1, "%s: unknown request", &argv[0][1]);
|
|
curcmd = p;
|
|
} else {
|
|
naptime = atoi(argv[0]);
|
|
if (naptime <= 0)
|
|
naptime = 5;
|
|
}
|
|
argc--, argv++;
|
|
}
|
|
kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf);
|
|
if (kd == NULL) {
|
|
error("%s", errbuf);
|
|
exit(1);
|
|
}
|
|
signal(SIGINT, die);
|
|
signal(SIGQUIT, die);
|
|
signal(SIGTERM, die);
|
|
|
|
/*
|
|
* Initialize display. Load average appears in a one line
|
|
* window of its own. Current command's display appears in
|
|
* an overlapping sub-window of stdscr configured by the display
|
|
* routines to minimize update work by curses.
|
|
*/
|
|
initscr();
|
|
CMDLINE = LINES - 1;
|
|
wnd = (*curcmd->c_open)();
|
|
if (wnd == NULL) {
|
|
warnx("couldn't initialize display");
|
|
die(0);
|
|
}
|
|
wload = newwin(1, 0, 3, 20);
|
|
if (wload == NULL) {
|
|
warnx("couldn't set up load average window");
|
|
die(0);
|
|
}
|
|
if (kvm_nlist(kd, namelist)) {
|
|
nlisterr(namelist);
|
|
exit(1);
|
|
}
|
|
if (namelist[X_FIRST].n_type == 0)
|
|
errx(1, "couldn't read namelist");
|
|
gethostname(hostname, sizeof (hostname));
|
|
NREAD(X_HZ, &hz, LONG);
|
|
NREAD(X_STATHZ, &stathz, LONG);
|
|
hertz = stathz ? stathz : hz;
|
|
(*curcmd->c_init)();
|
|
curcmd->c_flags |= CF_INIT;
|
|
labels();
|
|
|
|
dellave = 0.0;
|
|
|
|
signal(SIGALRM, display);
|
|
display(0);
|
|
noecho();
|
|
crmode();
|
|
keyboard();
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
void
|
|
labels()
|
|
{
|
|
if (curcmd->c_flags & CF_LOADAV) {
|
|
mvaddstr(2, 20,
|
|
"/0 /1 /2 /3 /4 /5 /6 /7 /8 /9 /10");
|
|
mvaddstr(3, 5, "Load Average");
|
|
}
|
|
(*curcmd->c_label)();
|
|
#ifdef notdef
|
|
mvprintw(21, 25, "CPU usage on %s", hostname);
|
|
#endif
|
|
refresh();
|
|
}
|
|
|
|
void
|
|
display(signo)
|
|
int signo;
|
|
{
|
|
register int i, j;
|
|
|
|
/* Get the load average over the last minute. */
|
|
(void) getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0]));
|
|
(*curcmd->c_fetch)();
|
|
if (curcmd->c_flags & CF_LOADAV) {
|
|
j = 5.0*avenrun[0] + 0.5;
|
|
dellave -= avenrun[0];
|
|
if (dellave >= 0.0)
|
|
c = '<';
|
|
else {
|
|
c = '>';
|
|
dellave = -dellave;
|
|
}
|
|
if (dellave < 0.1)
|
|
c = '|';
|
|
dellave = avenrun[0];
|
|
wmove(wload, 0, 0); wclrtoeol(wload);
|
|
for (i = (j > 50) ? 50 : j; i > 0; i--)
|
|
waddch(wload, c);
|
|
if (j > 50)
|
|
wprintw(wload, " %4.1f", avenrun[0]);
|
|
}
|
|
(*curcmd->c_refresh)();
|
|
if (curcmd->c_flags & CF_LOADAV)
|
|
wrefresh(wload);
|
|
wrefresh(wnd);
|
|
move(CMDLINE, col);
|
|
refresh();
|
|
alarm(naptime);
|
|
}
|
|
|
|
void
|
|
load()
|
|
{
|
|
|
|
(void) getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0]));
|
|
mvprintw(CMDLINE, 0, "%4.1f %4.1f %4.1f",
|
|
avenrun[0], avenrun[1], avenrun[2]);
|
|
clrtoeol();
|
|
}
|
|
|
|
void
|
|
die(signo)
|
|
int signo;
|
|
{
|
|
move(CMDLINE, 0);
|
|
clrtoeol();
|
|
refresh();
|
|
endwin();
|
|
exit(0);
|
|
}
|
|
|
|
#if __STDC__
|
|
#include <stdarg.h>
|
|
#else
|
|
#include <varargs.h>
|
|
#endif
|
|
|
|
#if __STDC__
|
|
void
|
|
error(const char *fmt, ...)
|
|
#else
|
|
void
|
|
error(fmt, va_alist)
|
|
char *fmt;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
va_list ap;
|
|
char buf[255];
|
|
int oy, ox;
|
|
#if __STDC__
|
|
va_start(ap, fmt);
|
|
#else
|
|
va_start(ap);
|
|
#endif
|
|
|
|
if (wnd) {
|
|
getyx(stdscr, oy, ox);
|
|
(void) vsprintf(buf, fmt, ap);
|
|
clrtoeol();
|
|
standout();
|
|
mvaddstr(CMDLINE, 0, buf);
|
|
standend();
|
|
move(oy, ox);
|
|
refresh();
|
|
} else {
|
|
(void) vfprintf(stderr, fmt, ap);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
va_end(ap);
|
|
}
|
|
|
|
void
|
|
nlisterr(namelist)
|
|
struct nlist namelist[];
|
|
{
|
|
int i, n;
|
|
|
|
n = 0;
|
|
clear();
|
|
mvprintw(2, 10, "systat: nlist: can't find following symbols:");
|
|
for (i = 0;
|
|
namelist[i].n_name != NULL && *namelist[i].n_name != '\0'; i++)
|
|
if (namelist[i].n_value == 0)
|
|
mvprintw(2 + ++n, 10, "%s", namelist[i].n_name);
|
|
move(CMDLINE, 0);
|
|
clrtoeol();
|
|
refresh();
|
|
endwin();
|
|
exit(1);
|
|
}
|