On 31 Jan 2017, at 11:56, Henrik Johansen <henrik.s.johansen@veloxit.no> wrote:
On 30 Jan 2017, at 21:13 , Denis Kudriashov <dionisiydk@gmail.com> wrote:
2017-01-30 20:25 GMT+01:00 Sven Van Caekenberghe <sven@stfx.eu>: 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-...
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.
This is the curse of being x-platform, we don't see them often (luckily) but there are important (semantic) differences that sometimes make life (very) difficult.
How to detect the last one from image is a very good question (tm) indeed...
Cheers, Henry