Subject: Re: bug#51820: 29.0.50; process_pending_signals is almost useless without SIGIO

From: Ken Brown <[email-masked]>
Date: Sat, 13 Nov 2021 18:25:55 -0500

On 11/13/2021 6:18 PM, Paul Eggert wrote:
> On 11/13/21 15:17, Ken Brown wrote:
>> Cygwin uses this code and doesn't have SIGIO.
> 
> In that case, perhaps someone using Cygwin (i.e., not me) could look into this. 
> Evidently it has not been much of a practical problem all these years.

It's hard to know whether it's been a problem.  Maybe emacs would be more 
responsive to C-g on Cygwin if we removed the #ifdef from handle_async_input. 
My preference would be to try that (on master of course) and see if anything breaks.

Eli, WDYT?

Ken