Horton

Re: Injection points: preloading and runtime arguments

x4mmm@yandex-team.ru

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From: "Andrey M. Borodin" <x4mmm@yandex-team.ru>
To: Michael Paquier <michael@paquier.xyz>
Cc: Heikki Linnakangas <hlinnaka@iki.fi>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Postgres hackers <pgsql-hackers@lists.postgresql.org>
Date: 2024-08-06T08:40:59Z
Lists: pgsql-hackers 

> On 6 Aug 2024, at 12:47, Michael Paquier <michael@paquier.xyz> wrote:
> 
> 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.

SQL initialisation is fine for test purposes. I just considered that I'd better share that doing the same from C code is non-trivial.

Thanks!


Best regards, Andrey Borodin.

Commits

  1. Add INJECTION_POINT_CACHED() to run injection points directly from cache

  2. Support loading of injection points