Re: multi-threaded Emacs

[Stefan Monnier]

> Internal data shared among threads must be accessed only inside critical
> sections in the .c code to have atomic operations on it.

So what happens when you execute two thread both doing

   (setq a (1+ a))

if you only do the locking in C, that means that `setq' will be atomic
and reading `a' is atomic, but the whole increment is not atomic.

As mentioned earlier, synchronization primitives will need to be
provided to Elisp.


        Stefan