Review Request: Replace thread usage with local event loop in kio/kio/hostinfo.cpp

Thiago Macieira thiago at
Tue Aug 9 07:50:36 BST 2011

On Tuesday, 9 de August de 2011 00:33:46 David Faure wrote:
> No no, I call wait after *terminate* ! Terminate is "almost instant
> termination", it kills the thread. So this does not wait for the DNS lookup
> to be finished, it only waits for terminate to call the cleanup callback,
> which should be almost instant (it's just that it's in another thread).
> I admit that I didn't fully test the case of a very slow DNS, but quick
> testing on the flaky network here seemed ok, and until someone proves the
> contrary, I firmly believe that this does not block for the whole duration
> of the dns lookup. If it did, it would mean that terminate would basically
> do nothing ;)
> And no, we definitely want no nested event loop. Anything else, but not
> that.

And anything but terminate, please. Nested event loops are better than a 
thread cancellation through unprotected code.

If you call terminate, all bets are lost. The first time you call terminate, I 
will wash my hands of ANY bug you find afterwards in QtNetwork.

Don't terminate the thread -- just let it exit on its own, even if it will 
take 30 minutes.

Thiago Macieira - thiago (AT) - thiago (AT)
   Software Architect - Intel Open Source Technology Center
      PGP/GPG: 0x6EF45358; fingerprint:
      E067 918B B660 DBD1 105C  966C 33F5 F005 6EF4 5358
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