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Re: approach to async-signal safety in bash
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From: |
Chet Ramey |
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Subject: |
Re: approach to async-signal safety in bash |
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Date: |
Wed, 1 Jul 2020 15:09:01 -0400 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 |
On 7/1/20 2:18 PM, Godmar Back wrote:
> I did a little experiment, changing find_process to assert that SIGCHLD is
> blocked (like the accompanying comment demands).
> This fails on one of the provided unit tests for me, for instance:
Thanks. I think it's possible for a SIGCHLD to arrive during the window
that find_process is executing when waitchld is not called from a SIGCHLD
signal handler. I'll take a look at fixing that.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/