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Allow passing a pointer to GetNamedDSMSegment()'s init callback.

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This commit adds a new "void *arg" parameter to
GetNamedDSMSegment() that is passed to the initialization callback
function.  This is useful for reusing an initialization callback
function for multiple DSM segments.

Author: Zsolt Parragi <zsolt.parragi@percona.com>
Reviewed-by: Sami Imseih <samimseih@gmail.com>
Discussion: https://postgr.es/m/CAN4CZFMjh8TrT9ZhWgjVTzBDkYZi2a84BnZ8bM%2BfLPuq7Cirzg%40mail.gmail.com
This commit is contained in:
Nathan Bossart
2025-12-15 14:27:16 -06:00
parent 64bf53dd61
commit 48d4a1423d
7 changed files with 26 additions and 18 deletions
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6
src/test/modules/injection_points/injection_points.c
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@@ -115,7 +115,7 @@ static shmem_startup_hook_type prev_shmem_startup_hook = NULL;
* when initializing dynamically with a DSM or when loading the module.
*/
static void
injection_point_init_state(void *ptr)
injection_point_init_state(void *ptr, void *arg)
{
InjectionPointSharedState *state = (InjectionPointSharedState *) ptr;
@@ -159,7 +159,7 @@ injection_shmem_startup(void)
* First time through, so initialize. This is shared with the dynamic
* initialization using a DSM.
*/
injection_point_init_state(inj_state);
injection_point_init_state(inj_state, NULL);
}
LWLockRelease(AddinShmemInitLock);
@@ -179,7 +179,7 @@ injection_init_shmem(void)
inj_state = GetNamedDSMSegment("injection_points",
sizeof(InjectionPointSharedState),
injection_point_init_state,
&found);
&found, NULL);
}
/*