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| (ns async-playground.core | |
| (:require [clojure.core.async :as async | |
| :refer [go chan >! <! >!! <!! timeout close! | |
| thread alts! alts!! sliding-buffer]])) | |
| (defn walk [t] | |
| (cond (nil? t) | |
| nil | |
| :else | |
| (let [[l v r] t] | |
| (concat (walk l) [v] (walk r))))) | |
| (defn awalk-blocking [t c] | |
| (cond (nil? t) | |
| nil | |
| :else | |
| (let [[l v r] t] | |
| (do | |
| (awalk-blocking l c) | |
| (>!! c v) | |
| (awalk-blocking r c))))) | |
| (defn awalk-background [t c] | |
| (cond (nil? t) | |
| nil | |
| :else | |
| (let [[l v r] t] | |
| (do | |
| (awalk-background l c) | |
| ;; Moved the put into a go block here. | |
| (go (>! c v)) | |
| (awalk-background r c))))) | |
| (def t [[nil 1 nil] 2 [[nil 4 nil] 3 nil]]) | |
| (comment | |
| ;; create a channel | |
| (def c (chan)) | |
| ;; run modified awalk-background | |
| (awalk-background t c) | |
| ;; Take from the channel | |
| (prn (<!! c)) ;; 4 | |
| (prn (<!! c)) ;; 2 | |
| (prn (<!! c)) ;; 1 | |
| (prn (<!! c)) ;; 3 | |
| (close! c) | |
| ) |
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