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grdc: add countdown timer mode
PR: 35113 Differential Revision: https://reviews.freebsd.org/D43463
This commit is contained in:
Gavin Atkinson
Warner Losh
parent
06af7bd12a
commit
71ed1adda8
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@ -1,4 +1,4 @@
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.Dd September 25, 2001
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.Dd January 15, 2023
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.Dt GRDC 6
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.Os
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.Sh NAME
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@ -8,6 +8,9 @@
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.Nm
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.Op Fl st
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.Op Ar n
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.Nm
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.Fl c
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.Ar n
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.Sh DESCRIPTION
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.Nm
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runs a digital clock made of reverse-video blanks on a curses
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@ -17,6 +20,11 @@ With an optional numeric argument
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it stops after
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.Ar n
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seconds (default never).
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The clock can act as a countdown timer with the
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.Fl c
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flag,
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.Ar n
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specifies the number of seconds to time for.
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The optional
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.Fl s
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flag makes digits scroll as they change.
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@ -37,8 +45,17 @@ for more information.
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If this variable is not set, the time zone is determined based on
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.Pa /etc/localtime .
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.El
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.Sh NOTES
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In countdown timer mode, the specifying of
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.Fl n
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> 360000 seconds (100 hours) will lead to the counter displaying
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incorrect remaining time, however it will time correctly, and
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display correctly when the remaining time becomes less than
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100 hours.
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.Sh AUTHORS
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.An -nosplit
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.An Amos Shapir ,
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modified for curses by
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.An John Lupien .
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Countdown timer mode by
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.An Gavin Atkinson .
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@ -1,12 +1,15 @@
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/*
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* Grand digital clock for curses compatible terminals
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* Usage: grdc [-st] [n] -- run for n seconds (default infinity)
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* Flags: -s: scroll
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* grdc -c n -- countdown n seconds
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* Flags: -c: Countdown timer mode
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* -s: scroll
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* -t: output time in 12-hour format
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*
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*
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* modified 10-18-89 for curses (jrl)
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* 10-18-89 added signal handling
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* 02-18-02 added countdown timer mode
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*
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* modified 03-25-03 for 12 hour option
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* - Samy Al Bahra <samy@kerneled.com>
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@ -26,6 +29,7 @@
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static struct timespec now;
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static struct tm *tm;
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static struct timespec end;
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static short disp[11] = {
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075557, 011111, 071747, 071717, 055711,
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@ -59,18 +63,19 @@ main(int argc, char *argv[])
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int i, j, s, k;
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int n;
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int ch;
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int scrol;
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int t12;
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bool scrol = false, t12 = false, timer = false;
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int hour, minute, second;
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t12 = scrol = 0;
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while ((ch = getopt(argc, argv, "ts")) != -1)
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while ((ch = getopt(argc, argv, "cst")) != -1)
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switch (ch) {
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case 'c':
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timer = true;
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break;
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case 's':
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scrol = 1;
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scrol = true;
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break;
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case 't':
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t12 = 1;
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t12 = true;
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break;
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case '?':
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default:
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@ -80,7 +85,7 @@ main(int argc, char *argv[])
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argc -= optind;
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argv += optind;
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if (argc > 1) {
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if ((argc > 1) || (argc == 0 && timer)) {
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usage();
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/* NOTREACHED */
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}
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@ -95,6 +100,9 @@ main(int argc, char *argv[])
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} else
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n = 0;
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if (timer && n == 0)
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return(0);
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initscr();
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signal(SIGINT,sighndl);
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@ -107,7 +115,7 @@ main(int argc, char *argv[])
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hascolor = has_colors();
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if(hascolor) {
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if (hascolor) {
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start_color();
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init_pair(1, COLOR_BLACK, COLOR_RED);
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init_pair(2, COLOR_RED, COLOR_BLACK);
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@ -118,7 +126,7 @@ main(int argc, char *argv[])
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clear();
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refresh();
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if(hascolor) {
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if (hascolor) {
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attrset(COLOR_PAIR(3));
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mvaddch(YBASE - 2, XBASE - 3, ACS_ULCORNER);
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@ -139,28 +147,42 @@ main(int argc, char *argv[])
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}
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clock_gettime(CLOCK_REALTIME_FAST, &now);
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prev_sec = now.tv_sec;
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if (timer) {
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end = now;
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end.tv_sec += n;
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}
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do {
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mask = 0;
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tm = localtime(&now.tv_sec);
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set(tm->tm_sec%10, 0);
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set(tm->tm_sec/10, 4);
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set(tm->tm_min%10, 10);
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set(tm->tm_min/10, 14);
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if (t12) {
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if (tm->tm_hour < 12) {
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if (tm->tm_hour == 0)
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tm->tm_hour = 12;
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mvaddstr(YBASE + 5, XBASE + 52, "AM");
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} else {
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if (tm->tm_hour > 12)
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tm->tm_hour -= 12;
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mvaddstr(YBASE + 5, XBASE + 52, "PM");
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if (!timer) {
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tm = localtime(&now.tv_sec);
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if (t12) {
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if (tm->tm_hour < 12) {
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if (tm->tm_hour == 0)
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tm->tm_hour = 12;
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mvaddstr(YBASE + 5, XBASE + 52, "AM");
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} else {
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if (tm->tm_hour > 12)
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tm->tm_hour -= 12;
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mvaddstr(YBASE + 5, XBASE + 52, "PM");
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}
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}
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hour = tm->tm_hour;
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minute = tm->tm_min;
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second = tm->tm_sec;
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} else {
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n = end.tv_sec - now.tv_sec;
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if (n <= 0)
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break;
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hour = (n / 3600) % 100;
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minute = (n / 60) % 60;
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second = n % 60;
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}
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set(tm->tm_hour%10, 20);
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set(tm->tm_hour/10, 24);
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set(second % 10, 0);
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set(second / 10, 4);
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set(minute % 10, 10);
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set(minute / 10, 14);
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set(hour % 10, 20);
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set(hour / 10, 24);
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set(10, 7);
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set(10, 17);
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for(k=0; k<6; k++) {
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@ -266,6 +288,7 @@ static void
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usage(void)
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{
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(void)fprintf(stderr, "usage: grdc [-st] [n]\n");
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(void)fprintf(stderr, "usage: grdc [-st] [n]\n"
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" grdc -c n\n");
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exit(1);
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}
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