Re: Using Guile with threads

[Mikael Djurfeldt <mdj at mdj dot nada dot kth dot se>]

Keith Wright <kwright@tiac.net> writes:

> > From: Mikael Djurfeldt <mdj@mdj.nada.kth.se>
> > 
> > "Frederic Brunel" <brunel@mail.dotcom.fr> writes:
> > 
> > > For informations, I'm using Linux with Posix Threads.
> > 
> > As soon as you link the application with libpthread, it is no longer
> > possible to create Guile threads.  This is because Linux pthreads use
> > the base of the stack to store internal information.  Since Guile
> > threads have their own stacks, anything may happen.
> 
> Since it doesn't work, is it possible to make it break in
> a more obvious way than "anything may happen".  Say by
> ensuring there are definitions for the same symbol that will
> make the loader complain if you try to use them both at once?

It may be possible.  If it is, it's a good idea to do so.
But it might be difficult since there are other pthreads
implementations which do work, so we would need to select a Linux
pthreads-specific symbol.

I've started working on a third alternative: To let Guile use pthread
primitives for allocating the COOP-thread stacks.  Don't know when I
have time to complete it, though.