Lightwight socket IO wrapper
james.harris.1 at gmail.com
Tue Sep 22 23:28:41 CEST 2015
"Marko Rauhamaa" <marko at pacujo.net> wrote in message
news:8737y6cgp6.fsf at elektro.pacujo.net...
> "James Harris" <james.harris.1 at gmail.com>:
>> I agree with what you say. A zero-length UDP datagram should be
>> possible and not indicate end of input but is that guaranteed and
> The zero-length payload size shouldn't be an issue, but UDP doesn't
> any guarantees about delivering the message. Your UDP application must
> be prepared for some, most or all of the messages disappearing without
> any error indication.
> In practice, you'd end up implementing your own TCP on top of UDP
> (retries, timeouts, acknowledgements, sequence numbers etc).
The unreliability of UDP was not the case in point here. Rather, it was
about whether different platforms could be relied upon to deliver
zero-length datagrams to the app if the datagrams got safely across the
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