Re: busyloop in sigchld_handler

[Sam Steingold]

> * Eli Zaretskii <address@hidden> [2007-03-11 23:14:01 +0200]:
>
>> From: Sam Steingold <address@hidden>
>> Date: Sun, 11 Mar 2007 17:06:07 -0400
>> 
>> > 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.
>
> So how portable is this trick?

sleep is in POSIX.

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