Pub-Sub envelope publisher in Clojure

(ns psenvpub
(:refer-clojure :exclude [send])
(:require [zhelpers :as mq]))

;;
;; Pubsub envelope publisher
;; Isaiah Peng <moc.liamg|airassi#moc.liamg|airassi>
;;

(defn -main []
(let [ctx (mq/context 1)
publisher (mq/socket ctx mq/pub)]
(mq/bind publisher "tcp://*:5563")
(while true
;; Write two messages, each with an envelope and content
(mq/send publisher "A\u0000" mq/sndmore)
(mq/send publisher "We don't want to see this.\u0000")
(mq/send publisher "B\u0000" mq/sndmore)
(mq/send publisher "We would like to see this.\u0000")
(Thread/sleep 1000))))