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Re: master af152ffab1: Don't freeze if the compositing manager crashes
From: |
Po Lu |
Subject: |
Re: master af152ffab1: Don't freeze if the compositing manager crashes |
Date: |
Sat, 30 Jul 2022 18:39:17 +0800 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.91 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
>> From: Po Lu <luangruo@yahoo.com>
>> Cc: emacs-devel@gnu.org
>> Date: Sat, 30 Jul 2022 16:37:37 +0800
>>
>> Eli Zaretskii <eliz@gnu.org> writes:
>>
>> > Why not?
>>
>> Because wait_reading_process_output will call read_socket_hook to read
>> events, and at that point it's too late to extract the event we want out
>> of the queue.
>
> Why too late?
Because read_socket_hook has already removed the event (which is
probably not the event we want) from the queue.
> Anyway, your change freezes Emacs for a whole second, which doesn't
> seem to be a good idea.
It only freezes in a rare situation, which is when the compositing
manager crashes after the user has explictly enabled frame
synchronization.