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Ran 01 Jul 2016 01:28AM UTC

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Committed 01 Jul 2016 01:18AM UTC coverage: 92.628% (-0.02%) from 92.65%

Job # 216.1

Build Type

push

travis-ci

Committed by

warner

Commit Message

fix allocate_tcp_port()

On both OS-X and Linux, this would occasionally return a port which was
actually in use, causing a subsequent listen() to fail (with
EADDRINUSE). The issues are are platform-dependent, and explained in
detail in the new function body.

The fix requires us to actually listen() on the newly-allocated socket,
twice, and keep trying until we get a port that works. There is a
hard-coded limit of 100 tries, in case the system has so many open
connections that all the randomly-allocated port numbers fail.

Closes ticket:258.

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