Right now /usr/games/grdc simply sleeps one second and then
refreshes then screen. Slightly annoying if you have two synced
machines next to each other that display different times.
The following patch fixes that behavior.
-Paul.
--- grdc.c.orig 2004-07-28 15:49:50.000000000 -0700
+++ grdc.c 2004-07-28 16:59:10.000000000 -0700
@@ -25,7 +25,7 @@
#define XLENGTH 58
#define YDEPTH 7
-time_t now;
+struct timespec now;
struct tm *tm;
short disp[11] = {
@@ -55,6 +55,7 @@
int
main(int argc, char **argv)
{
+ struct timespec ts;
int i, s, k;
int n;
int ch;
@@ -144,8 +145,19 @@
}
do {
mask = 0;
- time(&now);
- tm = localtime(&now);
+ clock_gettime(CLOCK_REALTIME, &now);
+ if (scrol) {
+ /*
+ * The time we really wish to display is now + scroll_msecs
+ */
+ now.tv_nsec /= 1000;
+ now.tv_nsec += scroll_msecs * 1000;
+ while (now.tv_nsec > 1000000) {
+ now.tv_sec++;
+ now.tv_nsec -= 1000000;
+ }
+ }
+ tm = localtime(&now.tv_sec);
set(tm->tm_sec % 10, 0);
set(tm->tm_sec / 10, 4);
set(tm->tm_min % 10, 10);
@@ -156,7 +168,7 @@
set(10, 17);
for(k = 0; k < 6; k++) {
if (scrol) {
- snooze(scroll_msecs / 6);
+ usleep(1000 * scroll_msecs / 6);
for(i = 0; i < 5; i++)
new[i] = (new[i] & ~mask) |
(new[i+1] & mask);
@@ -177,7 +189,7 @@
}
move(ybase, 0);
refresh();
- snooze(1000 - (scrol ? scroll_msecs : 0));
+ snooze(scrol ? scroll_msecs : 0);
} while (forever ? 1 : --n);
standend();
clear();
@@ -191,9 +203,9 @@
{
struct timespec ts;
+ clock_gettime(CLOCK_REALTIME, &ts);
+ ts.tv_nsec = 1000000000L - ts.tv_nsec - 1000000*msecs;
ts.tv_sec = 0;
- ts.tv_nsec = 1000000 * msecs;
-
nanosleep(&ts, NULL);
if (sigtermed) {