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Re: Emacs design and architecture

From: Po Lu
Subject: Re: Emacs design and architecture
Date: Sun, 17 Sep 2023 07:50:36 +0800
User-agent: Gnus/5.13 (Gnus v5.13)

Gerd Möllmann <gerd.moellmann@gmail.com> writes:

> Dmitry Gutov <dmitry@gutov.dev> writes:
>> On 16/09/2023 17:20, Björn Bidar wrote:
>>> These more extensive modes require more advanced features similar
>>> as
>>> when turning Emacs into a "word processor".
>>> In my opinion Emacs being single threaded is the biggest hurdle in
>>> that,
>>> gui lockup is the biggest no no in regular gui apps.
>> JavaScript is single-threaded.
>> They have a certain solution for parallelism in specific workloads,
>> though (called Web Workers).
> In Emacs, GC can run Lisp I'm told (finalizers), regexp matching can
> definitely run Lisp (bug#58042), and the devil knows what else :-(.  I
> personally have no idea how it would be possible to untangle this for
> a multi-threaded Lisp.

Presumably, finalizers must become thread safe, and Lisp run during
regexp matching will run within whichever thread calls string-match.  I
don't see any unsurmountable impediments here.

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