> From: Emanuel Berg <in...@dataswamp.org> > Date: Fri, 15 Sep 2023 19:11:22 +0200 > > Eli Zaretskii wrote: > > >> I think the biggest problem with uncooperative > >> multi-threading in Emacs is that Emacs has so much global > >> state. As a consequence, it's unsafe to let two threads use > >> anything in the C code in parallel. > > > > Indeed, that's the main problem. Just adding threads to Lisp > > is easy. > > Is there a part that is safe to access in parallel?
No. The global state cannot be possibly accessed in parallel from two or more threads. > If not, or for the part that is unsafe, where is > synchronization of access to be done, in Lisp or in C? Both.
