Re: Minimal logical decoding on standbys

On Sun, 2023-04-02 at 14:35 -0700, Andres Freund wrote:
> Why not offer a function to add a CV to a WES? It seems somehow odd
> to require
> going through condition_variable.c to create a WES.

I agree that it's a bit odd, but remember that after waiting on a CV's
latch, it needs to re-insert itself into the CV's wait list.

A WaitEventSetWait() can't do that, unless we move the details of re-
adding to the wait list into latch.c. I considered that, but latch.c
already implements the APIs for WaitEventSet and Latch, so it felt
complex to also make it responsible for ConditionVariable.

I'm open to suggestion.

Regards,
    Jeff Davis