Lightwight socket IO wrapper
greg.ewing at canterbury.ac.nz
Wed Sep 23 02:47:25 CEST 2015
> Isn't this technically the same problem as pressing ctrl-d at a terminal
> - it's not _really_ the end of the input (you can continue reading
> after), but it sends the program something it will interpret as such?
Yes. There's no concept of "closing the connection" with UDP,
because there's no connection. So if a read returns 0 bytes,
it must be because someone sent you a 0-length datagram.
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