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Re: busyloop in sigchld_handler

From: Sam Steingold
Subject: Re: busyloop in sigchld_handler
Date: Sun, 11 Mar 2007 17:06:07 -0400
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.95 (gnu/linux)

> * Kim F. Storm <address@hidden> [2007-03-11 20:39:25 +0100]:
> Sam Steingold <address@hidden> writes:
> Absolutely brilliant!  I can confirm that it works.


> But can you explain why it works?

wait3 is a system call, which, when invoked in a loop, prevents the
kernel from doing anything else (in this case, sending SIGCHLD to
emacs). sleep allows the kernel some time to pass the signal.

Sam Steingold (http://sds.podval.org/) on Fedora Core release 6 (Zod)
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The plural of "anecdote" is not "data".

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