> On 30 Jan 2017, at 21:13 , Denis Kudriashov <[email protected]> wrote: > > > 2017-01-30 20:25 GMT+01:00 Sven Van Caekenberghe <[email protected] > <mailto:[email protected]>>: > Well, you should do your utmost best to prevent the situation in the first > place (use startup/shutdown behaviour correctly). > > I remember I had those problems a lot in the beginning of Zn, especially when > running tests that sometimes failed. > > Have you seen Zn's #isListening ? I think that was written to catch the case > you described, but I am not sure it is 100% rock solid. > > Yes. This is exactly how I fix my case. > But this post is about general problem which I think is very critical. > > In #isListening code I see extra condition "self serverSocket localPort = > self port". Could you explain what case it is covered? >
Doesn't work on Windows; https://pharo.fogbugz.com/f/cases/16939/Intermittent-monkey-failures-due-to-port-usage-in-server-tests <https://pharo.fogbugz.com/f/cases/16939/Intermittent-monkey-failures-due-to-port-usage-in-server-tests> IIRC, behaviour is different on all three platforms: - Linux raises error - Mac assigns different port than requested - Win assigns requested port, but receives no traffic. How to detect the last one from image is a very good question (tm) indeed... Cheers, Henry
