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Re: wait unblocks before signals processed


From: Andreas Schwab
Subject: Re: wait unblocks before signals processed
Date: Tue, 06 Nov 2012 19:47:51 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.2 (gnu/linux)

Elliott Forney <address@hidden> writes:

> I guess my question is "can more than one trap run simultaneously?"
> The more I think about it though, this is probably not possible.  It
> looks like the trap doesn't run in a subprocess

Traps are executed at command boundaries.

> and I presume traps are blocked inside of other traps.

Traps can be nested:

$ bash -c "trap 'echo INT; sleep 10; exit 2' INT; trap 'echo QUIT' QUIT; sleep 
10"; echo $?
^CINT
^\QUIT
2

Andreas.

-- 
Andreas Schwab, address@hidden
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