Teach autoprewarm to use the dynamic shared memory registry.
commitabb0b4fc03fcf5a0ca786bd88c357bf9213aa6e1
authorNathan Bossart <nathan@postgresql.org>
Fri, 19 Jan 2024 20:43:59 +0000 (19 14:43 -0600)
committerNathan Bossart <nathan@postgresql.org>
Fri, 19 Jan 2024 20:43:59 +0000 (19 14:43 -0600)
treec01add754bc7ebcfe4451e039771ca5dcdfc183e
parent8b2bcf3f287c79eaebf724cba57e5ff664b01e06
Teach autoprewarm to use the dynamic shared memory registry.

Besides showcasing the DSM registry, this prevents pg_prewarm from
stealing from the main shared memory segment's extra buffer space
when autoprewarm_start_worker() and autoprewarm_dump_now() are used
without loading the module via shared_preload_libraries.

Suggested-by: Michael Paquier
Reviewed-by: Bharath Rupireddy
Discussion: https://postgr.es/m/20231205034647.GA2705267%40nathanxps13
contrib/pg_prewarm/autoprewarm.c