Horton

Re: introduce dynamic shared memory registry

Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>

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From: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>
To: Nathan Bossart <nathandbossart@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Abhijit Menon-Sen <ams@toroid.org>, Michael Paquier <michael@paquier.xyz>, Robert Haas <robertmhaas@gmail.com>, pgsql-hackers@postgresql.org
Date: 2024-01-22T11:30:48Z
Lists: pgsql-hackers 
On Mon, Jan 22, 2024 at 3:43 AM Nathan Bossart <nathandbossart@gmail.com> wrote:
>
> Oops.  I've attached an attempt at fixing this.  I took the opportunity to
> clean up the surrounding code a bit.

The code looks cleaner and readable with the patch. All the call sites
are taking care of dsm_attach returning NULL value. So, the attached
patch looks good to me.

-- 
Bharath Rupireddy
PostgreSQL Contributors Team
RDS Open Source Databases
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.