Lightwight socket IO wrapper

[Marko Rauhamaa]

"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
> portable?

The zero-length payload size shouldn't be an issue, but UDP doesn't make
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).


Marko