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Prevent unnecessary Fl_Clock timer events (STR 3516)

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See documentation @ STR 3516
This commit is contained in:
Albrecht Schlosser 2019-03-12 17:21:53 +01:00
parent 4324acc6f6
commit bab61a93d6
1 changed files with 4 additions and 1 deletions
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5
src/Fl_Clock.cxx
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@ -213,7 +213,10 @@ static void tick(void *v) {
int usec;
Fl::system_driver()->gettime(&sec, &usec);
((Fl_Clock*)v)->value((ulong)sec);
Fl::add_timeout((1000000 - usec)/1000000., tick, v); // time till next second
// schedule timer event slightly later than the next second (+25 ms)
// to prevent multiple timer events if triggered too early (STR 3516)
Fl::add_timeout((1025000 - usec)/1000000., tick, v);
}
int Fl_Clock::handle(int event) {