Re: Gap buffer problem?

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: Eli Zaretskii <eliz@gnu.org>,  pipcet@protonmail.com,
>   emacs-devel@gnu.org,  ofv@wanadoo.es
> Date: Wed, 11 Dec 2024 18:45:15 +0100
> 
> >>>>> On Wed, 11 Dec 2024 18:13:41 +0100, Gerd Möllmann 
> >>>>> <gerd.moellmann@gmail.com> said:
> 
>     Gerd> Eli Zaretskii <eliz@gnu.org> writes:
>     >> 
>     >> If it can be done by two processes, it can also be done by two threads
>     >> in the same process.  Right?
> 
>     Gerd> Yes, I think so.
> 
> But then you have to throw a lock over all the memory in the
> non-display thread that might affect redisplay

No, you copy on write.  Exactly like the OS does with forked process.