Request-reply client in CL

;;; -*- Mode:Lisp; Syntax:ANSI-Common-Lisp; -*-
;;;
;;; Hello World client in Common Lisp
;;; Connects REQ socket to tcp://localhost:5555
;;; Sends "Hello" to server, expects "World" back
;;;
;;; Kamil Shakirov <moc.liamg|08slimak#moc.liamg|08slimak>
;;;

(defpackage #:zguide.rrclient
(:nicknames #:rrclient)
(:use #:cl #:zhelpers)
(:export #:main))

(in-package :zguide.rrclient)

(defun main ()
(zmq:with-context (context 1)
;; Socket to talk to server
(zmq:with-socket (requester context zmq:req)
(zmq:connect requester "tcp://localhost:5559")

(dotimes (request-nbr 10)
(let ((request (make-instance 'zmq:msg :data "Hello")))
(zmq:send requester request))

(let ((response (make-instance 'zmq:msg)))
(zmq:recv requester response)
(message "Received reply ~D: [~A]~%"
request-nbr (zmq:msg-data-as-string response))))))

(cleanup))