Re: Emacs Lisp and Guile

[Marius Vollmer]

Richard Stallman <address@hidden> writes:

>       However, there is no way to prevent 'yield' or
>     SCM_TICK from switching during critical sections.
> 
> I'm not sure I understand that properly.  If we avoid calling yield
> or SCM_TICK within critical sections, won't that prevent thread
> switches within critical sections?

Yes, but you might not be able to avoid to call a function during a
critical section that calls SCM_TICK without you wanting it.  Having
to keep track of which functions are guaranteed to not to call
SCM_TICK or yield is not very reliable, I think.