Re: [Opensg-users] Problems with Multithreading in OpenSG 2.0

[Gerrit V. <vo...@vo...>]

Hi,

On Fri, 2009-06-26 at 21:05 -0500, Carsten Neumann wrote:
> 	Hello Gerrit,
> 
> Gerrit Voß wrote:
> > the problem is the explicit recorded refcounts in createScenegraph
> > make the nodes be deleted before they are linked into their places
> > during the app -> anim sync. 
> 
> ouch, that's not nice.

but not the first time ;)

> > Simple solution: 
> > - Don't use RecPtr for temporary stuff, they don't make any
> >   sense for that. 
> 
> true, but I think we both agree that crashing is not really user 
> friendly ;) ;)

at least we don't format their harddrive ;) 

> > Real solution:
> > - There should infrastructure to avoid this I'll see why these
> >   seem to make a way around it.
> 
> one thing I noticed (might be unrelated though) is that in 
> ChangeList::doApply() add/subRecorded() is used when playing back ref 
> count changes. Shouldn't that be unrecorded? I thought the rule is that 
> changelist apply is not transitive, has that changed?

I'm not really sure anymore. So I would guess currently they might be
caught in the twilight zone in between. I just stumbled across the rec
part too. I leave it for now and just fix the time when it is executed.

kind regards,
  gerrit