syndicate-2017/racket/syndicate/examples/actor/udp-echo.rkt

11 lines
423 B
Racket

#lang syndicate
(require/activate syndicate/drivers/udp)
(require syndicate/protocol/advertise)
(spawn (on (message (udp-packet $peer (udp-listener 5999) $body))
(printf "Received from ~a: ~v\n" peer body)
(send! (udp-packet (udp-listener 5999) peer body)))
(on (asserted (advertise (udp-packet _ (udp-listener 5999) _)))
(printf "Socket is ready and will forward datagrams.\n")))