Horton

Re: File descriptors in exec'd subprocesses

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
Cc: pgsql-hackers@lists.postgresql.org, Thomas Munro <thomas.munro@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2023-02-05T16:06:13Z
Lists: pgsql-hackers 
Andres Freund <andres@anarazel.de> writes:
> On February 5, 2023 1:00:50 AM GMT+01:00, Thomas Munro <thomas.munro@gmail.com> wrote:
>> Are there any more descriptors we need to think about?

> Postmaster's listen sockets?

I wonder whether O_CLOEXEC on that would be inherited by the
client-communication sockets, though.  That's fine ... unless you
are doing EXEC_BACKEND.

			regards, tom lane

Commits

  1. libpq: Use modern socket flags, if available.

  2. Don't leak descriptors into subprograms.

  3. Remove obsolete coding for early macOS.

  4. Adjust commit 2dbe8905 for ancient macOS.