Re: [Vala] Need help in debugging async code

[Michele Dionisio <michele dionisio gmail com>]

I'm sorry the url is: https://bugzilla.gnome.org/show_bug.cgi?id=772084

2016-09-27 22:38 GMT+02:00 Michele Dionisio <michele dionisio gmail com>:
> I think that now the patch is ok. I have add a bug for that on gnome bugzilla:
> https://bugzilla.gnome.org/show_bug.cgi?id=772084
>
> regards
>
> 2016-09-24 10:33 GMT+02:00 Nor Jaidi Tuah <norjaidi tuah ubd edu bn>:
> > > now,
> > >
> > > _state_in_progress_ is assigned to -1 at beginning
> > > the check if
> > >
> > > _state_in_progress_ == _state_ is move before the switch to work in
> > > any state.
> >
> > That won't work either.
> >
> > The fundamental problem is that the caller
> > that calls the callback (the mainloop or
> > whatever alternative you have in mind) must
> > be able to detect when the async method has
> > progressed to the next state. For the mainloop
> > solution, this is trivial. The alternative
> > you have in mind (that calls before yield)
> > must look at _state_ and _state_in_progress_;
> > otherwise, it may livelock.
> >
> > There is no way you can solve this by tweaking
> > async only[1]; you must also tweak the callback caller.
> > I don't think the Vala community would accept that.
> >
> >
> >
> > [1] Of course I may be wrong in this assertion.
> >
> > Nice day
> > Nor Jaidi Tuah
> >
> >
> >
> >
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