[Development] Allowing event delivery prior to and after QCoreApplication

[René J.V. Bertin]

On Monday April 13 2015 21:12:58 Thiago Macieira wrote:

Hello,

>> I'd like some opinions on whether we should try this or not.
>
>Note another problem: if a thread is running and delivering events while the 
>QCoreApplication gets destroyed, the application will have several race 
>conditions:
> 1) data races accessing QCoreApplicationPrivate::is_app_closing
> 2) TOCTOU race in QCoreApplication::sendEvent for the existence of 
>QCoreApplication
>
>So I have to ask: do we NEED to use QCoreApplication::notify() virtual outside 
>the main thread?

Not that I have any intimate knowledge of the inner workings you're discussing, but this sounds like the kind of situation ObjC avoids with its retain/release scheme. Would it help if you somehow imposed such a scheme on central classes like QCoreApplication?

R.