Hi Laurent,
On Aug 5, 11:07 am, Laurent PETIT <[email protected]> wrote:
> Looks complex.
Hmm.. Maybe we can save the agent and use an atom? (For some reason, I
thought, it wouldn't work with an atom...)
(def *parser* (atom nil))
(defn schedule-parse
[]
(reset! *parser* (delay (parse-stuff))))
(defn trigger-parse
([] (trigger-parse 0))
([delay-in-millis]
(future
(when (pos? delay-in-millis)
(Thread/sleep delay-in-millis))
@@*parser*)))
> One think I forgot to mention is that by making the datastructure implement
> the future API, I *desire* the ability to cancel the future while it's still
> sleeping : so that when the user types fast, intemediate values are not
> computed at all.
Well. You can. If you cancel the trigger-parse future while it's
sleeping, the parse run will not be triggered. You can even put more
logic into schedule-parse and only update the delay in the atom if
really necessary.
Sincerely
Meikel
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