Dear list,
I'm playing around with core.async and I don't understand the following.
1) I make a "source" channel that emits a random number every second.
(def continue (atom true))
(def source (let [out (as/chan)]
(as/go-loop []
(when @continue
(as/put! out (rand-int 10))
(as/<! (as/timeout 1000))
(recur)))
out))
2) I make a "sink" channel that simply discards whatever it gets:
(def sink (let [in (as/chan)]
(as/go-loop []
(let [v (as/<! in)]
(when-not (nil? v)
(recur))))
in))
3) Now I pipe the source channel to the sink channel after mapping a print
function over both of them:
(as/pipe (as/map< (fn [x] (print "<") x) source)
(as/map> (fn [x] (print ">") x) sink))
I expected to see a sequence of the form "<><><>...". However, only one or
very few ">" get printed, so I get a sequence "<>>>...". Why?
Furthermore, is what I am doing "idiomatic" or am I approaching things in
the wrong way?
All feedback appreciated!
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