tree 799007d7365a0d5d21a812635e7294a26a3732c2
parent 88a6088a91fd494f20b3a0faf97b6f59f63f80e9
author Eric Petersen <eric@ericpetersen.io> 1547774912 -0800
committer Gregory P. Smith <greg@krypto.org> 1547774912 -0800

Don't continually ask the OS for a port, raise an exception (#13)

Don't continually ask the OS for a port, raise an exception instead of
returning None if no port could be found from `pick_unused_port()`.

On very busy machines, we might not be able to get a port from the OS
that is free on both TCP and UDP. Rather than spinning forever, only try
a handful of times.