/* cytune.c -- Tune Cyclades driver
*
* Copyright 1995 Nick Simicich (njs@scifi.emi.net)
* Modifications by Rik Faith (faith@cs.unc.edu)
*
* 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 Nick Simicich
* 4. Neither the name of the Nick Simicich 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 NICK SIMICICH 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 NICK SIMICICH 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.
*/
/*
* 1999-02-22 Arkadiusz Miśkiewicz <misiek@pld.ORG.PL>
* - added Native Language Support
* Sun Mar 21 1999 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
* - fixed strerr(errno) in gettext calls
*/
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <signal.h>
#include <termios.h>
#include "c.h"
#include "cyclades.h"
#include "closestream.h"
#include "strutils.h"
#if 0
# ifndef XMIT
# include <linux/version.h>
# if LINUX_VERSION_CODE > 66056
# define XMIT
# endif
# endif
#endif
#include "xalloc.h"
#include "nls.h"
/* Until it gets put in the kernel, toggle by hand. */
#undef XMIT
struct cyclades_control {
struct cyclades_monitor c;
int cfile;
int maxmax;
double maxtran;
double maxxmit;
unsigned long threshold_value;
unsigned long timeout_value;
};
struct cyclades_control *cmon;
int cmon_index;
static int global_argc, global_optind;
static char ***global_argv;
#define mvtime(tvpto, tvpfrom) (((tvpto)->tv_sec = (tvpfrom)->tv_sec),(tvpto)->tv_usec = (tvpfrom)->tv_usec)
static void __attribute__ ((__noreturn__)) usage(FILE * out)
{
fprintf(out, USAGE_HEADER);
fprintf(out, _(" %s [options] <tty> [...]\n"), program_invocation_short_name);
fprintf(out, USAGE_OPTIONS);
fprintf(out, _(" -s, --set-threshold <num> set interruption threshold value\n"));
fprintf(out, _(" -g, --get-threshold display current threshold value\n"));
fprintf(out, _(" -S, --set-default-threshold <num> set default threshold value\n"));
fprintf(out, _(" -t, --set-flush <num> set flush timeout to value\n"));
fprintf(out, _(" -G, --get-flush display default flush timeout value\n"));
fprintf(out, _(" -T, --set-default-flush <num> set the default flush timeout to value\n"));
fprintf(out, _(" -q, --stats display statistics about the tty\n"));
fprintf(out, _(" -i, --interval <seconds> gather statistics every <seconds> interval\n"));
fprintf(out, USAGE_SEPARATOR);
fprintf(out, USAGE_HELP);
fprintf(out, USAGE_VERSION);
fprintf(out, USAGE_MAN_TAIL("cytune(8)"));
exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
}
static inline double dtime(struct timeval *tvpnew, struct timeval *tvpold)
{
double diff;
diff = (double)tvpnew->tv_sec - (double)tvpold->tv_sec;
diff += ((double)tvpnew->tv_usec - (double)tvpold->tv_usec) / 1000000;
return diff;
}
static void summary(int sig)
{
struct cyclades_control *cc;
int argc, local_optind;
char **argv;
int i;
argc = global_argc;
argv = *global_argv;
local_optind = global_optind;
if (sig > 0) {
for (i = local_optind; i < argc; i++) {
cc = &cmon[cmon_index];
warnx(_("File %s, For threshold value %lu, Maximum characters in fifo were %d,\n"
"and the maximum transfer rate in characters/second was %f"),
argv[i], cc->threshold_value, cc->maxmax,
cc->maxtran);
}
exit(EXIT_SUCCESS);
}
cc = &cmon[cmon_index];
if (cc->threshold_value > 0 && sig != -1) {
warnx(_("File %s, For threshold value %lu and timeout value %lu, Maximum characters in fifo were %d,\n"
"and the maximum transfer rate in characters/second was %f"),
argv[cmon_index + local_optind], cc->threshold_value,
cc->timeout_value, cc->maxmax, cc->maxtran);
}
cc->maxmax = 0;
cc->maxtran = 0.0;
cc->threshold_value = 0;
cc->timeout_value = 0;
}
static void query_tty_stats(int argc, char **argv, int interval, int numfiles,
unsigned long *threshold_value,
unsigned long *timeout_value)
{
struct cyclades_monitor cywork;
struct timeval lasttime, thistime;
struct timezone tz = { 0, 0 };
int i;
double diff;
double xfer_rate;
#ifdef XMIT
double xmit_rate;
#endif
cmon = xmalloc(sizeof(struct cyclades_control) * numfiles);
if (signal(SIGINT, summary) ||
signal(SIGQUIT, summary) || signal(SIGTERM, summary))
err(EXIT_FAILURE, _("cannot set signal handler"));
if (gettimeofday(&lasttime, &tz))
err(EXIT_FAILURE, _("gettimeofday failed"));
for (i = optind; i < argc; i++) {
cmon_index = i - optind;
cmon[cmon_index].cfile = open(argv[i], O_RDONLY);
if (cmon[cmon_index].cfile == -1)
err(EXIT_FAILURE, _("cannot open %s"), argv[i]);
if (ioctl
(cmon[cmon_index].cfile, CYGETMON, &cmon[cmon_index].c))
err(EXIT_FAILURE, _("cannot issue CYGETMON on %s"),
argv[i]);
summary(-1);
if (ioctl
(cmon[cmon_index].cfile, CYGETTHRESH, &threshold_value))
err(EXIT_FAILURE, _("cannot get threshold for %s"),
argv[i]);
if (ioctl(cmon[cmon_index].cfile, CYGETTIMEOUT, &timeout_value))
err(EXIT_FAILURE, _("cannot get timeout for %s"),
argv[i]);
}
while (1) {
sleep(interval);
if (gettimeofday(&thistime, &tz))
err(EXIT_FAILURE, _("gettimeofday failed"));
diff = dtime(&thistime, &lasttime);
mvtime(&lasttime, &thistime);
for (i = optind; i < argc; i++) {
cmon_index = i - optind;
if (ioctl(cmon[cmon_index].cfile, CYGETMON, &cywork))
err(EXIT_FAILURE,
_("cannot issue CYGETMON on %s"), argv[i]);
if (ioctl
(cmon[cmon_index].cfile, CYGETTHRESH,
&threshold_value))
err(EXIT_FAILURE,
_("cannot get threshold for %s"), argv[i]);
if (ioctl
(cmon[cmon_index].cfile, CYGETTIMEOUT,
&timeout_value))
err(EXIT_FAILURE,
_("cannot get timeout for %s"), argv[i]);
xfer_rate = cywork.char_count / diff;
#ifdef XMIT
xmit_rate = cywork.send_count / diff;
#endif
if ((*threshold_value) !=
cmon[cmon_index].threshold_value
|| (*timeout_value) !=
cmon[cmon_index].timeout_value) {
summary(-2);
/* Note that the summary must come before the
* setting of threshold_value */
cmon[cmon_index].threshold_value =
(*threshold_value);
cmon[cmon_index].timeout_value =
(*timeout_value);
} else {
/* Don't record this first cycle after change */
if (xfer_rate > cmon[cmon_index].maxtran)
cmon[cmon_index].maxtran = xfer_rate;
#ifdef XMIT
if (xmit_rate > cmon[cmon_index].maxxmit)
cmon[cmon_index].maxxmit = xmit_rate;
#endif
if (cmon[cmon_index].maxmax < 0 ||
cywork.char_max >
(unsigned long)cmon[cmon_index].maxmax)
cmon[cmon_index].maxmax =
cywork.char_max;
}
#ifdef XMIT
printf(_("%s: %lu ints, %lu/%lu chars; fifo: %lu thresh, %lu tmout, "
"%lu max, %lu now\n"), argv[i],
cywork.int_count, cywork.char_count,
cywork.send_count, *threshold_value,
*timeout_value, cywork.char_max,
cywork.char_last);
printf(_(" %f int/sec; %f rec, %f send (char/sec)\n"),
cywork.int_count / diff, xfer_rate, xmit_rate);
#else
printf(_("%s: %lu ints, %lu chars; fifo: %lu thresh, %lu tmout, "
"%lu max, %lu now\n"), argv[i],
cywork.int_count, cywork.char_count,
*threshold_value, *timeout_value, cywork.char_max,
cywork.char_last);
printf(_(" %f int/sec; %f rec (char/sec)\n"),
cywork.int_count / diff, xfer_rate);
#endif
memcpy(&cmon[cmon_index].c, &cywork,
sizeof(struct cyclades_monitor));
}
}
free(cmon);
return;
}
int main(int argc, char **argv)
{
int query = 0;
int interval = 1;
int set = 0;
int set_val = -1;
int get = 0;
int set_def = 0;
int set_def_val = -1;
int get_def = 0;
int set_time = 0;
int set_time_val = -1;
int set_def_time = 0;
int set_def_time_val = -1;
int errflg = 0;
int file;
int numfiles;
int i;
unsigned long threshold_value;
unsigned long timeout_value;
static const struct option longopts[] = {
{"set-threshold", required_argument, NULL, 's'},
{"get-threshold", no_argument, NULL, 'g'},
{"set-default-threshold", required_argument, NULL, 'S'},
{"set-flush", required_argument, NULL, 't'},
{"get-flush", no_argument, NULL, 'G'},
{"set-default-flush", required_argument, NULL, 'T'},
{"stats", no_argument, NULL, 'q'},
{"interval", required_argument, NULL, 'i'},
{"version", no_argument, NULL, 'V'},
{"help", no_argument, NULL, 'h'},
{NULL, 0, NULL, 0}
};
/* For signal routine. */
global_argc = argc;
global_argv = &argv;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
atexit(close_stdout);
while ((i =
getopt_long(argc, argv, "qs:S:t:T:gGi:Vh", longopts,
NULL)) != -1) {
switch (i) {
case 'q':
query = 1;
break;
case 'i':
interval = strtou32_or_err(optarg,
_("Invalid interval value"));
if (interval < 1) {
warnx(_("Invalid interval value: %d"),
interval);
errflg++;
}
break;
case 's':
++set;
set_val = strtou32_or_err(optarg, _("Invalid set value"));
if (set_val < 1 || 12 < set_val) {
warnx(_("Invalid set value: %d"), set_val);
errflg++;
}
break;
case 'S':
++set_def;
set_def_val = strtou32_or_err(optarg,
_("Invalid default value"));
if (set_def_val < 0 || 12 < set_def_val) {
warnx(_("Invalid default value: %d"),
set_def_val);
errflg++;
}
break;
case 't':
++set_time;
set_time_val = strtou32_or_err(optarg,
_("Invalid set time value"));
if (set_time_val < 1 || 255 < set_time_val) {
warnx(_("Invalid set time value: %d"),
set_time_val);
errflg++;
}
break;
case 'T':
++set_def_time;
set_def_time_val = strtou32_or_err(optarg,
_("Invalid default time value"));
if (set_def_time_val < 0 || 255 < set_def_time_val) {
warnx(_("Invalid default time value: %d"),
set_def_time_val);
errflg++;
}
break;
case 'g':
++get;
break;
case 'G':
++get_def;
break;
case 'V':
printf(_("%s from %s\n"), program_invocation_short_name,
PACKAGE_STRING);
return EXIT_SUCCESS;
case 'h':
usage(stdout);
default:
usage(stderr);
}
}
numfiles = argc - optind;
if (errflg
|| (numfiles == 0)
|| (!query && !set && !set_def && !get && !get_def && !set_time && !set_def_time)
|| (set && set_def)
|| (set_time && set_def_time)
|| (get && get_def))
usage(stderr);
/* For signal routine. */
global_optind = optind;
if (set || set_def) {
for (i = optind; i < argc; i++) {
file = open(argv[i], O_RDONLY);
if (file == -1)
err(EXIT_FAILURE, _("cannot open %s"), argv[i]);
if (ioctl(file,
set ? CYSETTHRESH : CYSETDEFTHRESH,
set ? set_val : set_def_val))
err(EXIT_FAILURE,
_("cannot set %s to threshold %d"), argv[i],
set ? set_val : set_def_val);
close(file);
}
}
if (set_time || set_def_time) {
for (i = optind; i < argc; i++) {
file = open(argv[i], O_RDONLY);
if (file == -1)
err(EXIT_FAILURE, _("cannot open %s"), argv[i]);
if (ioctl(file,
set_time ? CYSETTIMEOUT : CYSETDEFTIMEOUT,
set_time ? set_time_val : set_def_time_val))
err(EXIT_FAILURE,
_("cannot set %s to time threshold %d"),
argv[i],
set_time ? set_time_val : set_def_time_val);
close(file);
}
}
if (get || get_def) {
for (i = optind; i < argc; i++) {
file = open(argv[i], O_RDONLY);
if (file == -1)
err(EXIT_FAILURE, _("cannot open %s"), argv[i]);
if (ioctl
(file, get ? CYGETTHRESH : CYGETDEFTHRESH,
&threshold_value))
err(EXIT_FAILURE,
_("cannot get threshold for %s"), argv[i]);
if (ioctl
(file, get ? CYGETTIMEOUT : CYGETDEFTIMEOUT,
&timeout_value))
err(EXIT_FAILURE,
_("cannot get timeout for %s"), argv[i]);
close(file);
if (get)
printf(_("%s: %ld current threshold and %ld current timeout\n"),
argv[i], threshold_value, timeout_value);
else
printf(_("%s: %ld default threshold and %ld default timeout\n"),
argv[i], threshold_value, timeout_value);
}
}
if (!query)
return EXIT_SUCCESS;
query_tty_stats(argc, argv, interval, numfiles, &threshold_value, &timeout_value);
return EXIT_SUCCESS;
}
