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