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Diffstat (limited to 'net/client.hs')
| -rw-r--r-- | net/client.hs | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/net/client.hs b/net/client.hs deleted file mode 100644 index 863df6e..0000000 --- a/net/client.hs +++ /dev/null @@ -1,30 +0,0 @@ -{-# LANGUAGE OverloadedStrings #-} --- Echo client program -module Main (main) where - -import qualified Control.Exception as E -import qualified Data.ByteString.Char8 as C -import Network.Socket -import Network.Socket.ByteString (recv, sendAll) - -main :: IO () -main = runTCPClient "127.0.0.1" "3000" $ \s -> do - sendAll s "Hello, world!" - msg <- recv s 1024 - putStr "Received: " - C.putStrLn msg - --- from the "network-run" package. -runTCPClient :: HostName -> ServiceName -> (Socket -> IO a) -> IO a -runTCPClient host port client = withSocketsDo $ do - addr <- resolve - E.bracket (open addr) close client - where - resolve = do - let hints = defaultHints { addrSocketType = Stream } - head <$> getAddrInfo (Just hints) (Just host) (Just port) - open addr = do - sock <- socket (addrFamily addr) (addrSocketType addr) (addrProtocol addr) - connect sock $ addrAddress addr - return sock - |