syndicate-lang
/
syndicate-rkt
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Add missing assertion for outbound connections.

This commit is contained in:
Tony Garnock-Jones 2018-05-06 11:03:39 +01:00
parent 61cd0613ca
commit 9fc621c829
2 changed files with 22 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
syndicate/drivers/tcp.rkt
View File

@ -70,6 +70,7 @@
(values (open-input-string "")
o))])
(tcp:tcp-connect host port)))
(assert (tcp-accepted id))
(define unblock! (run-connection id cin cout))
(unblock!))

21
syndicate/examples/chat-client.rkt Normal file
View File

@ -0,0 +1,21 @@
#lang imperative-syndicate
(require/activate imperative-syndicate/drivers/tcp)
(require/activate imperative-syndicate/drivers/external-event)
(require (only-in racket/port read-bytes-line-evt))
(spawn (define id 'chat)
(assert (tcp-connection id (tcp-address "localhost" 5999)))
(on (asserted (tcp-accepted id)) (printf "*** Connected.\n"))
(stop-when (retracted (tcp-accepted id)) (printf "*** Remote EOF. Terminating.\n"))
(on (message (tcp-in id $bs))
(write-bytes bs)
(flush-output))
(define stdin-evt (read-bytes-line-evt (current-input-port) 'any))
(on (message (inbound (external-event stdin-evt (list $line))))
(if (eof-object? line)
(stop-current-facet (printf "*** Local EOF. Terminating.\n"))
(send! (tcp-out id (bytes-append line #"\n"))))))