Re: Injection points: preloading and runtime arguments

On Sun, Aug 04, 2024 at 01:02:22AM +0900, Michael Paquier wrote:
> On Fri, Aug 02, 2024 at 07:03:58PM +0300, Andrey M. Borodin wrote:
> > The test works fine with SQL interface “select
> > injection_points_load('get-new-multixact-id');”.
> 
> Yes, just use a load() here to make sure that the DSM required by the
> waits are properly initialized before entering in the critical section
> where the wait of the point get-new-multixact-id happens.

Hmm.  How about loading injection_points with shared_preload_libraries
now that it has a _PG_init() thanks to 75534436a477 to take care of
the initialization you need here?  We could add two hooks to request
some shmem based on a size and to do the shmem initialization.
--
Michael