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Re: Pretest next week

From: Stefan Monnier
Subject: Re: Pretest next week
Date: Wed, 28 Jan 2009 21:11:46 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)

> Yes, adding

>     else if (pending_atimers)                         \
>       do_pending_atimers();                           \

> at the end of QUIT allows poll_timer() to fire under SYNC_INPUT and Ctrl-g
> to be detected, with no apparent other ill effects (in very  limited
> testing).


>> If so, we should probably create a new
>> var `pending_signals', which should always reflect
>> "pending_timers || interrupt_input_pending"

> I'm not sure if the extra 0-comparison would significantly add to overhead
> but I guess code size could take a hit.

It's easy for the CPU to predict those jumps, but I still think the
current QUIT is already pretty costly, so I'd rather not make it worse.

> Though maybe the  part of QUIT above (when there is a quit_flag) could
> also be reduced to a function call to slim things down?

Yes, that would be good as well.


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