Re: SIGPROF + SIGCHLD and igc

[Eli Zaretskii]

> From: Helmut Eller <eller.helmut@gmail.com>
> Cc: gerd.moellmann@gmail.com,  pipcet@protonmail.com,  ofv@wanadoo.es,
>   emacs-devel@gnu.org,  acorallo@gnu.org
> Date: Wed, 25 Dec 2024 11:46:38 +0100
> 
> On Tue, Dec 24 2024, Eli Zaretskii wrote:
> 
> >> From: Helmut Eller <eller.helmut@gmail.com>
> >> I think, SIGIO might cause trouble.
> >
> > Why do you think so?  Its handler does almost nothing, just sets a
> > flag (if you ignore the Android-specific stuff there).
> 
> Indeed that looks quite tame.  Makes me wonder why
> handle_interrupt_signal needs to be so complicated in comparison.  E.g.
> the line
> 
>       internal_last_event_frame = terminal->display_info.tty->top_frame;
> 
> looks problematic for MPS.

SIGINT is different because C-g is programmed to trigger SIGINT on TTY
frames.