Date: Sun, 21 Apr 2019 09:59:03 -0700
From: Noah Misch <noah@leadboat.com>
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Daniel Gustafsson <daniel@yesql.se>,
	Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>,
	"9erthalion6@gmail.com" <9erthalion6@gmail.com>,
	"sfrost@snowman.net" <sfrost@snowman.net>,
	"pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Subject: Re: [HACKERS] Weaker shmem interlock w/o postmaster.pid
Message-ID: <20190421165903.GA3709194@rfd.leadboat.com>
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On Thu, Apr 18, 2019 at 04:30:46PM +1200, Thomas Munro wrote:
> On Thu, Apr 11, 2019 at 6:22 PM Noah Misch <noah@leadboat.com> wrote:
> >  -                       my $iaddr = inet_aton($test_localhost);
> > +                       my $iaddr = inet_aton('0.0.0.0');
> 
> This causes make check-world to deliver a flurry of pop-ups from
> macOS's built-in Firewall asking if perl should be allowed to listen
> to all interfaces (well I didn't catch the exact message, but that's
> probably the drift).  Not sure if they'd go away permanently if I
> managed to click OK before they disappear, but it's fun trying.  The
> silly firewall facility is not actually enabled by default on this OS,
> but unfortunately this company-issued machine has it forced to on.
> This isn't really an objection to the code, it's more of a bemused
> anecdote about a computer that can't decide whether it's a Unix
> workstation or a Fisher Price My First Computer.

That is unfortunate.  The "Allowing specific applications" section of
https://support.apple.com/en-us/HT201642 appears to offer a way to allow perl
permanently.  Separately, it wouldn't cost much for us to abandon that check
on !$use_tcp (non-Windows) configurations.