Horton

Re: introduce dynamic shared memory registry

Nathan Bossart <nathandbossart@gmail.com>

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From: Nathan Bossart <nathandbossart@gmail.com>
To: Andrei Lepikhov <a.lepikhov@postgrespro.ru>
Cc: Michael Paquier <michael@paquier.xyz>, Robert Haas <robertmhaas@gmail.com>, pgsql-hackers@postgresql.org
Date: 2023-12-20T15:33:42Z
Lists: pgsql-hackers 
On Wed, Dec 20, 2023 at 11:02:58AM +0200, Andrei Lepikhov wrote:
> In that case, maybe change the test case to make it closer to real-life
> usage - with locks and concurrent access (See attachment)?

I'm not following why we should make this test case more complicated.  It
is only intended to test the DSM registry machinery, and setting/retrieving
an atomic variable seems like a realistic use-case to me.

-- 
Nathan Bossart
Amazon Web Services: https://aws.amazon.com

Commits

  1. Fix possible NULL pointer dereference in GetNamedDSMSegment().

  2. Teach autoprewarm to use the dynamic shared memory registry.

  3. Introduce the dynamic shared memory registry.

  4. doc: Reorganize section for shared memory and LWLocks.