Re: Issues with process forking when 'multithreaded'.

[email protected] (Mike Pomraning) Mon, 4 Mar 2013 10:45:46 -0600
Newsgroups perl.ithreads
Message-ID <CAPZFfA8YXVxMGjfUb_QdC5hciCcR2bAaR0n+5-3gBFane4ZTpw@mail.gmail.com>
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On Mon, Mar 4, 2013 at 10:31 AM, Sander Smeenk <[email protected]> wrote:

>
> And i still don't understand why mixing threads+fork is "not smart". ;)
>

Mixing the two makes it easy to introduce damning error.

Here's someone who learned it the hard way:
http://rachelbythebay.com/w/2011/06/07/forked/

Here are some caveats on forking and program state:
http://pubs.opengroup.org/onlinepubs/009696799/functions/pthread_atfork.html#tag_03_486_08

Here's an acknowledgement that the standards folks didn't get all the pesky
semantics quite right:
https://collaboration.opengroup.org/external/pasc.org/interpretations/unofficial/db/p1003.1c/pasc-1003.1c-37.html

-Mike

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