From: storm@cua.dk (Kim F. Storm)
To: emacs-devel@gnu.org
Subject: Re: busyloop in sigchld_handler
Date: Sun, 11 Mar 2007 21:42:27 +0100 [thread overview]
Message-ID: <m38xe31pho.fsf@kfs-l.imdomain.dk> (raw)
In-Reply-To: <m33b4bmucj.fsf@loiso.podval.org> (Sam Steingold's message of "Sun\, 11 Mar 2007 15\:51\:56 -0400")
Sam Steingold <sds@gnu.org> writes:
>> * David Kastrup <qnx@tah.bet> [2007-03-11 20:43:13 +0100]:
>> storm@cua.dk (Kim F. Storm) writes:
>>> Sam Steingold <sds@gnu.org> writes:
>>>
>>
>> Wouldn't it make more sense to do
>>
>> for (;;) {
>> errno = 0;
>> pid = wait3(&w, WNOHANG | WUNTRACD, 0);
>> if (!(pid < 0 && errno == EINTR))
>> break;
>> sleep(1);
>> }
>>
>> That way, we don't get an obligatory sleep if things happen to work
>> without it.
>
> yes - my point was to make the change as small as possible to make it
> clear what I want (and minimize opposition). it appears that people do
> not mind, so I will modify it along your lines.
I already tried that, and it didn't work !!!
I also tried a shorter sleep (usleep(100000)) before the first wait,
and it didn't work either -- emacs did remain respond briefly just
after M-x compile completed, but then it became unresponsive for ~10
seconds.
That's why I asked you to explain how the change is supposed to work.
--
Kim F. Storm <storm@cua.dk> http://www.cua.dk
next prev parent reply other threads:[~2007-03-11 20:42 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-11 18:33 busyloop in sigchld_handler Sam Steingold
2007-03-11 19:39 ` Kim F. Storm
2007-03-11 19:43 ` David Kastrup
2007-03-11 19:51 ` Sam Steingold
2007-03-11 20:42 ` Kim F. Storm [this message]
2007-03-11 21:06 ` Sam Steingold
2007-03-11 21:14 ` Eli Zaretskii
2007-03-11 21:17 ` Sam Steingold
2007-03-11 21:51 ` Eli Zaretskii
2007-03-11 22:21 ` Sam Steingold
2007-03-12 4:24 ` Richard Stallman
2007-03-12 7:00 ` David Kastrup
2007-03-13 2:43 ` Richard Stallman
2007-03-11 22:27 ` Andreas Schwab
2007-03-11 22:30 ` Kim F. Storm
2007-03-12 17:37 ` Andreas Schwab
2007-03-12 17:53 ` Sam Steingold
2007-03-12 18:45 ` Andreas Schwab
2007-03-12 18:57 ` Sam Steingold
2007-03-12 19:28 ` Andreas Schwab
2007-03-12 19:34 ` David Kastrup
2007-03-12 21:36 ` Andreas Schwab
2007-03-13 7:29 ` David Kastrup
2007-03-13 9:29 ` Andreas Schwab
2007-03-13 22:19 ` David Kastrup
2007-03-13 22:28 ` Andreas Schwab
2007-03-13 22:54 ` David Kastrup
2007-03-13 23:17 ` Andreas Schwab
2007-03-14 7:06 ` David Kastrup
2007-03-14 9:24 ` Kim F. Storm
2007-03-14 10:00 ` David Kastrup
2007-03-14 10:22 ` Andreas Schwab
2007-03-14 10:52 ` David Kastrup
2007-03-14 11:01 ` Andreas Schwab
2007-03-14 11:12 ` David Kastrup
2007-03-14 12:29 ` Andreas Schwab
2007-03-14 10:01 ` Andreas Schwab
2007-03-14 13:15 ` Kim F. Storm
2007-03-14 13:41 ` Andreas Schwab
2007-03-14 14:10 ` Kim F. Storm
2007-03-14 14:12 ` Andreas Schwab
2007-03-14 15:02 ` Kim F. Storm
2007-03-14 16:34 ` Andreas Schwab
2007-03-16 9:34 ` Kim F. Storm
2007-03-16 9:59 ` Andreas Schwab
2007-03-14 3:24 ` Richard Stallman
2007-03-14 17:34 ` David Kastrup
2007-03-26 1:47 ` YAMAMOTO Mitsuharu
2007-03-26 2:02 ` Sam Steingold
2007-03-26 2:17 ` YAMAMOTO Mitsuharu
2007-03-28 10:02 ` Kim F. Storm
2007-03-28 15:19 ` Chong Yidong
2007-03-28 15:25 ` Andreas Schwab
2007-03-28 15:33 ` Kim F. Storm
2007-03-28 15:37 ` Andreas Schwab
2007-03-28 20:18 ` Kim F. Storm
2007-03-29 17:59 ` Richard Stallman
2007-03-28 15:30 ` Alfred M. Szmidt
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