[Bf-committers] Reference counting, deleting data and fake users

[Alexander Zubov]

I think the easiest solution to this issue would be adding a prompt message on exit "You have unsaved Actions. Would you like exit anyway?" or something on that nature. This way user can go back and press F button on the Actions he wants to keep.

--- On Fri, 3/16/12, Bassam Kurdali <bassam at urchn.org> wrote:

> From: Bassam Kurdali <bassam at urchn.org>
> Subject: Re: [Bf-committers] Reference counting, deleting data and fake users
> To: "bf-blender developers" <bf-committers at blender.org>
> Date: Friday, March 16, 2012, 11:21 AM
> big -1
> I don't think it's simple, and I'm not sure it's even
> desirable;
> changing behavior like this, when the original complaint was
> that
> actions not getting fake users by default, going into a
> massive change
> of design.
> there are so many things in blender that need big redesign,
> like the
> dependency graph and library linking/refrencing, that going
> into major
> restructuring of things that *aren't broken* just seem like
> a ridiculous
> thing. Especially as this would be at least a highly
> controversial
> change.
> So if you're looking at a big architectural/ design/ under
> the hood
> challenge, wouldn't you please fix the depgraph first ;) ?
> 
> > I don't see any big technical difficulty personally. We
> can just
> > modify the refcount increasing/decreasing function to
> use an observer
> > pattern scheme and if a datablock is deleted simply
> inform the
> > observers of the deletion (And the human user if the
> datablock has
> > more users). It will require some interface for the
> observers too but
> > I don't think it's an unsurpassable challenge, even in
> C :p. The
> > memory footprint of datablocks will slightly increase
> but it's a
> > negligible amount of data compared to meshes etc.
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> 
> 
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