[Seaside] RE: Strongtalk

[Ron Teitelbaum]

If at all possible it would be great if the people that know about these
techniques at seaside could work with your group to make sure that seaside
is supported on your new VM.

Ron

> From: David Griswold
> Sent: Wednesday, October 04, 2006 9:42 PM
> 
> 
> > From: Ron Teitelbaum
> > Sent: Wednesday, October 04, 2006 6:29 PM
> >
> > I noticed this on the seaside site  www.seaside.st
> >
> > Seaside is not available for other Smalltalks at this time. Many
> Smalltalk
> > VMs do not support the stack-copying techniques Seaside uses to
> implement
> > backtracking. The status for various dialects is:
> > . Smalltalk/X: not feasible
> > . VAST: not feasible
> > . Gnu Smalltalk: believed to be possible, but never tried
> > . Ambrai: unknown
> >
> > Do you know if Strongtalk supports the stack-copying techniques Seaside
> > uses?
> >
> > Ron Teitelbaum
> 
> I don't know what they mean by "stack-copying techniques"; I wasn't able
> to
> find any other references to it on the seaside website.  The Strongtalk VM
> uses the native thread stack, implemented as a spaghetti stack so that
> Smalltalk and native contexts can coexist.  I can't think of any
> fundamental
> reason why a stack couldn't be copied, but there may be thread access
> issues
> from other threads, making context manipulation from outside tricker; I
> don't know enough details about how Windows XP handles thread stack memory
> allocation and access.
> -Dave
>