Hey Bill, I would have thought you would have to have a pretty good reason for not using an executor for this?
(let [executor (Executors/newSingleThreadScheduledExecutor)] (.scheduleAtFixedRate executor your-func 0 3 TimeUnit/SECONDS)) On Thu, Dec 1, 2011 at 11:17 AM, Bill Caputo <logos...@gmail.com> wrote: > Hi All, > > I am currently considering an approach similar to the following for > periodically sending an update to an agent and I'm looking for > feedback on whether there is anything wrong with it, whether it's > idiomatic clojure (sorry I'm in the pro-that-term camp) and whether > there are other pure-clojure alternatives I should consider (I also > realize there are java-based periodic timers I could use as well): > > (def *timer* (agent nil)) ; perhaps an atom instead? > (defn start-timer [ms a f] > (letfn [(tfn [m] (future (do (Thread/sleep ms) (send a f) (send > *timer* tfn))))] > (send *timer* tfn))) > > given an agent: > (def data (agent 0)) > > we could kick off an update every 3 seconds thusly: > (start-timer 3000 data #(inc %)) > > A real implementation would likely have to address further > considerations like stopping/cancelling the timer, not using a global > for the timer, and what happens if start-timer is called twice, but > this is the basic idea I'm considering... > > feedback welcome, > > thanks, > bill > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
