diff options
Diffstat (limited to 'usr.bin/systat/main.c')
| -rw-r--r-- | usr.bin/systat/main.c | 295 |
1 files changed, 0 insertions, 295 deletions
diff --git a/usr.bin/systat/main.c b/usr.bin/systat/main.c deleted file mode 100644 index 28673e5..0000000 --- a/usr.bin/systat/main.c +++ /dev/null @@ -1,295 +0,0 @@ -/*- - * 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[] = "@(#)main.c 8.1 (Berkeley) 6/6/93"; -#endif - -#ifndef lint -static const char copyright[] = -"@(#) Copyright (c) 1980, 1992, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif - -#include <sys/param.h> -#include <sys/time.h> -#include <sys/sysctl.h> - -#include <err.h> -#include <limits.h> -#include <locale.h> -#include <nlist.h> -#include <paths.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> - -#include "systat.h" -#include "extern.h" - -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 */ -struct clockinfo clkinfo; -double hertz; -char c; -char *namp; -char hostname[MAXHOSTNAMELEN]; -WINDOW *wnd; -int CMDLINE; -int use_kvm = 1; - -static WINDOW *wload; /* one line window for load average */ - -int -main(int argc, char **argv) -{ - char errbuf[_POSIX2_LINE_MAX], dummy; - size_t size; - - (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) { - /* - * Try to actually read something, we may be in a jail, and - * have /dev/null opened as /dev/mem. - */ - if (kvm_nlist(kd, namelist) != 0 || namelist[0].n_value == 0 || - kvm_read(kd, namelist[0].n_value, &dummy, sizeof(dummy)) != - sizeof(dummy)) { - kvm_close(kd); - kd = NULL; - } - } - if (kd == NULL) { - /* - * Maybe we are lacking permissions? Retry, this time with bogus - * devices. We can now use sysctl only. - */ - use_kvm = 0; - kd = kvm_openfiles("/dev/null", "/dev/null", "/dev/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, 1, 20); - if (wload == NULL) { - warnx("couldn't set up load average window"); - die(0); - } - gethostname(hostname, sizeof (hostname)); - size = sizeof(clkinfo); - if (sysctlbyname("kern.clockrate", &clkinfo, &size, NULL, 0) - || size != sizeof(clkinfo)) { - error("kern.clockrate"); - die(0); - } - hertz = clkinfo.stathz; - (*curcmd->c_init)(); - curcmd->c_flags |= CF_INIT; - labels(); - - dellave = 0.0; - - signal(SIGALRM, display); - display(0); - noecho(); - crmode(); - keyboard(); - /*NOTREACHED*/ - - return EXIT_SUCCESS; -} - -void -labels(void) -{ - if (curcmd->c_flags & CF_LOADAV) { - mvaddstr(0, 20, - "/0 /1 /2 /3 /4 /5 /6 /7 /8 /9 /10"); - mvaddstr(1, 5, "Load Average"); - } - (*curcmd->c_label)(); -#ifdef notdef - mvprintw(21, 25, "CPU usage on %s", hostname); -#endif - refresh(); -} - -void -display(int signo __unused) -{ - 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) -{ - - (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(int signo __unused) -{ - move(CMDLINE, 0); - clrtoeol(); - refresh(); - endwin(); - exit(0); -} - -#include <stdarg.h> - -void -error(const char *fmt, ...) -{ - va_list ap; - char buf[255]; - int oy, ox; - - va_start(ap, fmt); - if (wnd) { - getyx(stdscr, oy, ox); - (void) vsnprintf(buf, sizeof(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(struct nlist n_list[]) -{ - int i, n; - - n = 0; - clear(); - mvprintw(2, 10, "systat: nlist: can't find following symbols:"); - for (i = 0; - n_list[i].n_name != NULL && *n_list[i].n_name != '\0'; i++) - if (n_list[i].n_value == 0) - mvprintw(2 + ++n, 10, "%s", n_list[i].n_name); - move(CMDLINE, 0); - clrtoeol(); - refresh(); - endwin(); - exit(1); -} |
