Blocks the current thread until all actions dispatched thus far (from this thread or agent) to the agents have occurred, or the timeout (in milliseconds) has elapsed. Returns nil if returning due to timeout, non-nil otherwise.
; clojure/core.clj:1811 (defn await-for [timeout-ms & agents] (io! "await-for in transaction" (when *agent* (throw (new Exception "Can't await in agent action"))) (let [latch (new java.util.concurrent.CountDownLatch (count agents)) count-down (fn [agent] (. latch (countDown)) agent)] (doseq [agent agents] (send agent count-down)) (. latch (await timeout-ms (. java.util.concurrent.TimeUnit MILLISECONDS))))))
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