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Re: [PATCH] Attempt at improving the perlipc docs

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Rafael Garcia-Suarez
June 15, 2010 08:20
Re: [PATCH] Attempt at improving the perlipc docs
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On 4 June 2010 11:47, Maik Hentsche <> wrote:
> Hi,
> after being back from vacation I see no further improvement suggestions
> for my doc patch. I implemented those I did receive before. Please find
> the updated patch attached. It applies to the current git HEAD. For
> those of you who do not fully remember the topic here comes a
> description of the issue I'm trying to solve.
> I was recently confused by the way signal handlers using wait() behave
> in collaboration with qx() or system().
> When you have a signal handler for SIGCHLD that calls wait() and use
> qx() or system() in your parent, the signal handler will be called.
> Yet, because qx/system already wait()ed for their child the wait in the
> signal handler would block. I doubt everyone will understand this in
> the first place. Thus, I wrote an improvement for the documentation to
> tell people about this issue.

Thanks, applied to bleadperl (plus some minor formatting nits)

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