From: Eli Zaretskii <eliz@gnu.org>
To: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
Cc: dancol@dancol.org, Emacs-devel@gnu.org
Subject: Re: Power: blink-cursor-mode is a pig
Date: Sat, 31 Dec 2011 09:10:30 +0200 [thread overview]
Message-ID: <834nwhtdw9.fsf@gnu.org> (raw)
In-Reply-To: <73A8B027-572E-4A53-A672-679C6CE689F4@math.s.chiba-u.ac.jp>
> From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
> Date: Sat, 31 Dec 2011 12:47:19 +0900
> Cc: dancol@dancol.org,
> Emacs-devel@gnu.org
>
> BTW, stopping/suspending timers does not avoid Emacs to wake up
> in a short period on some ports, depending on how its `select'
> emulation is implemented. At least, this applies to the NS port
> because it does periodic polling inside its `select'
> implementation when there are some subprocesses or network
> connections. The Mac port does not have this drawback. I'm not
> sure about the W32 port.
If my reading of w32proc.c is correct, the w32 port blocks inside the
call to WaitForMultipleObjects for the same time interval as the
timeout specified in the call to `select' (redirected to `sys_select'
on w32). But this only blocks the main thread, the one that runs
Lisp; the input thread that processes messages delivered to the Emacs
frames cannot be blocked (doing so could cause deadlock to the entire
system), so it continues running and processing messages.
next prev parent reply other threads:[~2011-12-31 7:10 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-29 23:54 Power: blink-cursor-mode is a pig Daniel Colascione
2011-12-30 3:55 ` Lennart Borgman
2011-12-30 16:54 ` Richard Stallman
2011-12-30 9:10 ` Eli Zaretskii
2011-12-30 9:19 ` Lennart Borgman
2011-12-30 9:20 ` Daniel Colascione
2011-12-30 11:42 ` Eli Zaretskii
2011-12-30 11:58 ` Daniel Colascione
2011-12-30 12:39 ` Daniel Colascione
2011-12-30 15:32 ` Eli Zaretskii
2011-12-30 12:49 ` 山本 光晴
2011-12-30 15:35 ` Eli Zaretskii
2011-12-31 3:47 ` YAMAMOTO Mitsuharu
2011-12-31 7:10 ` Eli Zaretskii [this message]
2011-12-31 7:21 ` Daniel Colascione
2011-12-31 7:42 ` YAMAMOTO Mitsuharu
2011-12-31 10:59 ` Jan Djärv
2011-12-31 7:42 ` Eli Zaretskii
2011-12-30 14:37 ` David De La Harpe Golden
2011-12-30 15:37 ` Eli Zaretskii
2011-12-30 13:57 ` Thien-Thi Nguyen
2011-12-30 14:46 ` Óscar Fuentes
2011-12-31 18:04 ` Chong Yidong
2011-12-31 18:11 ` Lennart Borgman
-- strict thread matches above, loose matches on Subject: below --
2011-12-31 12:00 grischka
2011-12-31 14:40 ` Eli Zaretskii
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