Re: WIP: new system catalog pg_wait_event

On Wed, Aug 16, 2023 at 01:43:35PM +0200, Drouvot, Bertrand wrote:
> Yeah, agree, done that way in v6 (also added a test in 001_worker_spi.pl
> to ensure that "worker_spi_main" is reported in pg_wait_event).

-typedef struct WaitEventExtensionEntryByName
-{
-   char        wait_event_name[NAMEDATALEN];   /* hash key */
-   uint16      event_id;       /* wait event ID */
-} WaitEventExtensionEntryByName;

I'd rather keep all these structures local to wait_event.c, as these
cover the internals of the hash tables.

Could you switch GetWaitEventExtensionEntries() so as it returns a
list of strings or an array of char*?  We probably can live with the
list for that.

+       char        buf[NAMEDATALEN + 44]; //"Custom wait event \"%Name%\" defined by extension" + 
Incorrect comment.  This would be simpler as a StringInfo.

Thanks for the extra test in worker_spi looking at the contents of the
catalog.
--
Michael