On Thu, Jul 20, 2023 at 2:59 PM Michael Paquier <mich...@paquier.xyz> wrote: > > On Thu, Jul 20, 2023 at 05:54:55PM +0900, Masahiro Ikeda wrote: > > Yes, you're right. When I tried using worker_spi to test wait event, > > I found the behavior. And thanks a lot for your patch. I wasn't aware > > of the way. I'll merge your patch to the tests for wait events. > > Be careful when using that. I have not spent more than a few minutes > to show my point, but what I sent lacks a shmem_request_hook in > _PG_init(), for example, to request an amount of shared memory equal > to the size of the state structure.
I think the preferred way to grab a chunk of shared memory for an external module is by using shmem_request_hook and shmem_startup_hook. Wait events shared memory too can use them. -- Bharath Rupireddy PostgreSQL Contributors Team RDS Open Source Databases Amazon Web Services: https://aws.amazon.com
