Re: Emergency Escape and EXWM

[Eli Zaretskii]

> Date: Fri, 06 Sep 2024 08:02:47 +0000
> From: port19 <port19@port19.xyz>
> 
> while reading the emacs manual I stumbled across a little inaccuracy in
> (info "(emacs) Emergency Escape")
> 
> > Emergency escape is active only for text terminals.  On graphical
> > displays, you can use the mouse to kill Emacs or switch to another
> > program.
> 
> While this is true for the vast majority of graphical sessions, one major 
> exception exists.
> On EXWM, not least due to the single threaded nature of emacs, the graphical 
> session can indeed hang because of emacs.
> In this case it's not possible to kill emacs with a mouse or switch to 
> another program.

There's always "kill -9", no?

> Should this be documented? 

Which part?

> Should emergency escape be available via a customization option to graphical 
> sessions?

Is it even possible?  On a text terminal, we configure the terminal to
generate SIGINT when C-g is pressed, and that's why we can provide
this feature: if we see a nested SIGINT, we know the user pressed C-g
more than once without Emacs being able to handle it.  But in a GUI
session, this is impossible, AFAIK.