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Echo server: Difference between revisions
→{{header|Haskell}}
(add Haskell example) |
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Line 487:
withListenOn port body = bracket (listenOn port) sClose body
echo (handle, host, port) = catch (forever doOneLine) stop where
doOneLine = do line <- hGetLine handle
print (host, port, init line)
hPutStrLn handle line
hFlush handle
stop error = do putStrLn $ "Closed connection from " ++ show (host, port) ++ " due to " ++ show error
hClose handle
main = withSocketsDo $
withListenOn (PortNumber 12321) $ \listener ->
forever $ do
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