[erlang-questions] setting a timer for a given date and time
Ulf Wiger (TN/EAB)
Tue Nov 4 16:07:14 CET 2008
Joel Reymont skrev:
> What is a robust way of setting a timer for a given UTC date and
> I guess I can take the difference between now (UTC) and the given
> datetime using calendar:time_difference/2. This would give me seconds
> which I could multiply by 1000 to get the milliseconds the timer
> Would this be the best approach, though?
I think that's the most common way to do it.
Remember that you must stay within a "smallint"
with the timer. To protect yourself from clock
changes etc., you might want to sleep in smallish
increments (perhaps minutes or seconds at a time,
depending on what trade-off between safety and
overhead that suits you best.)
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