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Re: wait with trap SIGCHLD: different behaviour in 3.2 and 4.0


From: Chet Ramey
Subject: Re: wait with trap SIGCHLD: different behaviour in 3.2 and 4.0
Date: Thu, 15 Oct 2009 22:02:16 -0400

> > Cool. Is there any hint/doc/faq/how-to implement old behaviour, i.e. wait
> > until all children of current bash process will exit?
> 
> I imagine a loop on wait until it returns because there are no unwaited-for
> children.  You can detect the "interrupted" exit status and behave
> accordingly.
> 
> I'll probably make this posix-mode-specific behavior or add an option for
> it in the next version.

Bash-4.1 makes this behavior part of posix mode; the bash-3.2 behavior is
again the default.

Chet

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/




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