Рассмотрите возможность использования jucDelayQueue
Вот набросок того, как он будет работать,
(delayed-function
немного громоздким здесь, но он в основном создает экземпляр jucDelayed для представления в очереди .)
(import [java.util.concurrent Delayed DelayQueue TimeUnit])
(defn delayed-function [f]
(let [execute-time (+ 5000 (System/currentTimeMillis))
remaining-delay (fn [t] (.convert t
(- execute-time
(System/currentTimeMillis))
TimeUnit/MILLISECONDS))]
(reify
Delayed (getDelay [_ t] (remaining-delay t))
Runnable (run [_] (f))
Comparable (compareTo [_ _] 0))))
;;; Use java's DelayQueue from clojure.
;;; See http://docs.oracle.com/javase/6/docs/api/java/util/concurrent/DelayQueue.html
(def q (DelayQueue.))
(defn delayed
"put the function f on the queue, it will only execute after the delay
expires"
[f]
(.offer q (delayed-function f)))
(defn start-processing
"starts a thread that endlessly reads from the delay queue and
executes the function found in the queue"
[]
(.start
(Thread.
#(while true
(.run (.take q))))))
user> (start-processing)
user> (delayed #(println "Hello"))
; 5 seconds passes
Hello
Что будут делать эти агенты? – dimagog