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martintrojer/tpe.clj

Last active December 13, 2015 20:08
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ThreadPoolExecutor
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tpe.clj
(def pool (java.util.concurrent.Executors/newFixedThreadPool 2))
(def l1 (java.util.concurrent.CountDownLatch. 1))
(def l2 (java.util.concurrent.CountDownLatch. 1))
(defn worker [] (.await l1) (println "l1") (.await l2) (println "done!"))
(dotimes [_ 4] (.submit pool worker))
(.countDown l1)
;; l1
;; l1
(countDown l2)
;; done!
;; l1
;; done!
;; l1
;; don done!e!
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