在 2020年1月4日 +0800 PM5:00，Eli Zaretskii <eliz@gnu.org>，写道：
> > Date: Sat, 4 Jan 2020 13:26:24 +0800
> > From: HaiJun Zhang <netjune@outlook.com>
> > Cc: michael.albinus@gmx.de, 38807@debbugs.gnu.org
> >
> > There are ways of communications (e.g., you can call any Emacs
> > function),
> >
> > Can threads in modules call Emacs functions?
>
> Yes. It’s in the docs, please read about modules in the ELisp manual.

I known module code can call emacs functions. But is it true for threads in module?

See this: https://github.com/emacs-lsp/lsp-mode/issues/676#issuecomment-476700911

> That means if a native-code thread is to be run in parallel with the UI thread, it can never access an Env.