[fpc-devel] Suspicion about TThread.Synchronize

[Sven Barth]

Am Mi., 6. Feb. 2019, 18:45 hat Luca Olivetti <luca at ventoso.org>
geschrieben:

> El 6/2/19 a les 17:05, Sven Barth via fpc-devel ha escrit:
> > Am Mi., 6. Feb. 2019, 11:27 hat Luca Olivetti <luca at ventoso.org
> > <mailto:luca at ventoso.org>> geschrieben:
> >
> >     Of course I cannot reproduce the issue with a simpler test program
> :-/
> >
> >
> > Without a way to test it I can't do anything. So either you need to find
> > the issue yourself or you need to manage to create a simpler example.
>
> Yes, I know :-(
>
> In my test program I instantiate 4 threads that call synchronize in a
> loop (with a Sleep(Random(20)) intermingled), while in the main thread a
> TTimer with interval 1 sleeps for 100 ms (to simulate a busy gui).
> It's been running for 7 hours already and of course it's still working
> fine.
>
> In the "real" program I can provoke the issue after some time (ranging
> from a couple of minutes to half an hour).
>
> With fpc 2.6.4 it's rock solid (or so it seems), so my workaround is
>
> {$if FPC_FULLVERSION>=30000}
> {$ERROR can't use fpc 3.x due to issues with TThread.Synchronize}
> {$endif}
>
>
> (that's just in case I inadvertently open the project with lazarus > 1.6.4)
>
> :-(
>

Would you nevertheless try with 3.2, please? Just in case it happens to be
the problem I had fixed in regards to Queue().

Regards,
Sven

>
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