quoth Evan Laforge <qdun...@gmail.com>,
...
> and it still waits for the subprocess to complete. Actually, it looks
> like it's the client's hGetContents, since hGetChar comes back
> immediately. I guess that's understandable, but even hGetLine blocks.
In the version I was looking at, if I change the server's output
{-- IO.hPutStr hdl "response" --} to "response\n", it works. Otherwise
hGetLine will still be polling for the newline that will never come.
> System.IO doesn't seem to have a hRead :: Int -> IO String, I guess
> you have to go down to the POSIX fd level, or read char-by-char.
In the present case I believe we'd be talking about
Network.Socket.ByteString.recv. With a POSIX device like a pipe,
then System.Posix.IO.fdRead.
Donn
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