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Add support for runtime arguments in injection points

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The macros INJECTION_POINT() and INJECTION_POINT_CACHED() are extended
with an optional argument that can be passed down to the callback
attached when an injection point is run, giving to callbacks the
possibility to manipulate a stack state given by the caller.  The
existing callbacks in modules injection_points and test_aio have their
declarations adjusted based on that.

da7226993f (core AIO infrastructure) and 93bc3d75d8 (test_aio) and
been relying on a set of workarounds where a static variable called
pgaio_inj_cur_handle is used as runtime argument in the injection point
callbacks used by the AIO tests, in combination with a TRY/CATCH block
to reset the argument value.  The infrastructure introduced in this
commit will be reused for the AIO tests, simplifying them.

Reviewed-by: Greg Burd <greg@burd.me>
Discussion: https://postgr.es/m/Z_y9TtnXubvYAApS@paquier.xyz
This commit is contained in:
Michael Paquier
2025-05-10 06:56:26 +09:00
parent 89372d0aaa
commit 371f2db8b0
23 changed files with 69 additions and 57 deletions
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2
src/backend/storage/aio/aio.c
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@@ -1275,7 +1275,7 @@ pgaio_io_call_inj(PgAioHandle *ioh, const char *injection_point)
PG_TRY();
{
InjectionPointCached(injection_point);
InjectionPointCached(injection_point, NULL);
}
PG_FINALLY();
{