Horton

Re: make MaxBackends available in _PG_init

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: Nathan Bossart <nathandbossart@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>, "Bossart, Nathan" <bossartn@amazon.com>, Fujii Masao <masao.fujii@oss.nttdata.com>, "wangsh.fnst@fujitsu.com" <wangsh.fnst@fujitsu.com>, Andres Freund <andres@anarazel.de>, Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>, Greg Sabino Mullane <htamfids@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, "pgsql-hackers@lists.postgresql.org" <pgsql-hackers@lists.postgresql.org>
Date: 2022-02-10T01:47:39Z
Lists: pgsql-hackers 
On Wed, Feb 09, 2022 at 09:53:38AM -0800, Nathan Bossart wrote:
> On Wed, Feb 09, 2022 at 12:31:16PM -0500, Robert Haas wrote:
>> On Wed, Feb 9, 2022 at 12:18 AM Michael Paquier <michael@paquier.xyz> wrote:
>>> Okay, I'd rather apply the same rule everywhere for consistency, then,
>>> like in the attached.  That's minimal, still.
>> 
>> That's fine with me. In the interest of full disclosure, I did kind of
>> notice this when reviewing the patch, though perhaps not every
>> instance, and just decided that it didn't seem important enough to
>> worry about. I'm totally OK with you thinking otherwise, though,
>> especially since you also volunteered to do the work thus generated.
>> :-)

I guessed so :p

> This is fine with me as well.  I only left these out because the extra
> variable felt unnecessary to me for these functions.

Okay, done, then.

> While you are at it, would you mind fixing the misspelling of
> OldestVisibleMXactId in multixact.c (as per the attached)?

Indeed.  Fixed as well.
--
Michael

Commits

  1. Add a new shmem_request_hook hook.

  2. Remove non-functional code for unloading loadable modules.

  3. Fix misleading comments about background worker registration.

  4. Revert the addition of GetMaxBackends() and related stuff.

  5. Fix typo in multixact.c

  6. Reduce more the number of calls to GetMaxBackends()

  7. Remove MaxBackends variable in favor of GetMaxBackends() function.

  8. Fix comments about bgworker registration before MaxBackends initialization

  9. Fix bogus assertion in BootstrapModeMain().

  10. Make sure MaxBackends is always set