haskell实现多线程服务器实例代码

module Main where

import Network.Socket
import Control.Concurrent

main :: IO ()
main = do
sock <- socket AF_INET Stream 0
bindSocket sock (SockAddrInet 4242 iNADDR_ANY)
listen sock 10240
mainLoop sock

mainLoop :: Socket -> IO ()
mainLoop sock = do
conn <- accept sock
forkIO $ runConn conn
mainLoop sock

runConn :: (Socket, SockAddr) -> IO ()
runConn (sock, tcp) = do
sms<-recv sock 1024
peeraddr <- getPeerName sock
putStrLn sms
runConn (sock, tcp)