Megatest

;;  if there is already a serv-listener return the udata
;;
(define (start-server-find-port udata-in #!optional (port 4242)(tries 0))
  (let ((udata (or udata-in (make-udat))))
    (if (udat-serv-listener udata) ;; TODO - add check that the listener is alive and ready?
	udata
	(let ((res (connect-server udata port)))

	  (or res
	      (begin
		;; (print "Could not connect to " port)
		(if (and (< port  65535)
			 (< tries 10000)) ;; make this number bigger when things are working
		    (start-server-find-port udata (+ port 1)(+ tries 1))
		    #f)))))))

(define (connect-server udata port)
  ;; (tcp-listener-socket LISTENER)(socket-name so)
  ;; sockaddr-address, sockaddr-port, sockaddr->string
  (let* ((tlsn (handle-exceptions
		   exn
		   (begin
		     ;; (print "unable to connect to " port ", exn=" exn)
		     #f)

		 (tcp-listen port 1000 #f))) ;; (tcp-listen TCPPORT [BACKLOG [HOST]])
	 (addr (get-my-best-address))) ;; (hostinfo-addresses (host-information (current-hostname)))
    (if tlsn
	(begin
	  (udat-my-address-set!    udata addr)
	  (udat-my-port-set!       udata port)
	  (udat-my-hostname-set!   udata (get-host-name))