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tricu/demos/interactionTrees/echoServer.tri
James Eversole bf30d5945e (: Aiche Tee Tee Pee :)
Perhaps the first webserver in Tree Calculus? Sure, it's married to a Haskell
IO runtime... but we're managing all of the actual webserver semantics in tricu!

This includes a demo Arboricx application server that is capable of storing
and serving bundles.
2026-05-21 09:05:12 -05:00

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!import "../../lib/base.tri" !Local
!import "../../lib/io.tri" !Local
!import "../../lib/socket.tri" !Local
-- Main accept+echo loop. Recursion via y.
echoLoop = y (self : server :
withAccepted_ server
(err :
bind (putStrLn (append "accept error: " err)) (_ :
self server))
(clientSock addr :
bind (putStrLn (append "client from " addr)) (_ :
onResult_ (recv clientSock 4096)
(err :
bind (closeSocket clientSock) (_ :
self server))
(msg :
bind (send clientSock msg) (_ :
bind (closeSocket clientSock) (_ :
self server))))))
main = io (
onOk_ socket (server :
onOk_ (bindSocket server "127.0.0.1" 0) (_ :
onOk_ (listen server 5) (_ :
onOk_ (getSocketName server) (port :
bind (putStrLn (append "Echo server listening on port " (showNumber port))) (_ :
echoLoop server))))))