I'd use an executor:
(ns example.main
(:import [java.util.concurrent Executors TimeUnit]))
(def scheduler
(Executors/newScheduledThreadPool 32))
(defn fetch-files []
(println "Fetching files...))
(defn -main []
(.scheduleAtFixedRate scheduler ^Runnable fetch-files 15 15
TimeUnit/MINUTES))
On Mon, 17 Dec 2018 at 20:14, <lawrence.krub...@gmail.com> wrote:
> I'm coming back to Clojure development after a year away. This is a fast
> moving community and it is hard to keep up when one is not working on it
> full time. I'm dusting off some code I wrote 2 years ago, and trying to
> bring all the dependencies up to their current versions.
>
> I have a function that fetches files from an AWS S3 bucket, every 15
> minutes. I had previously used the at-at library for this:
>
> https://github.com/overtone/at-at
>
> But at-at has not been updated in 6 years, so I assume it is abandoned. I
> have two questions about this:
>
> 1.) how else do Clojure programmers usually call recurring functionality?
>
> 2.) I am ignorant about the JVM, so I'm afraid I have to ask, at a
> fundamental level, how does at-at work? I know that if a function calls
> itself recurringly, on the JVM, one eventually gets stackoverflow. So how
> does at-at make its magic work?
>
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--
James Reeves
booleanknot.com
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