haskell实现多线程服务器实例代码

代码如下:

module Main where

import Network.Socket
import Control.Concurrent

main :: IO ()
main = do
    sock     bindSocket sock (SockAddrInet 4242 iNADDR_ANY)
    listen sock 10240
    mainLoop sock

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

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