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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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4
src/include/storage/dsm_registry.h
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@@ -16,8 +16,8 @@
#include "lib/dshash.h"
extern void *GetNamedDSMSegment(const char *name, size_t size,
void (*init_callback) (void *ptr),
bool *found);
void (*init_callback) (void *ptr, void *arg),
bool *found, void *arg);
extern dsa_area *GetNamedDSA(const char *name, bool *found);
extern dshash_table *GetNamedDSHash(const char *name,
const dshash_parameters *params,