From b2f69377435fe170b1321e55d0c3141ebe8a2efc Mon Sep 17 00:00:00 2001 From: Sami Imseih Date: Mon, 6 Apr 2026 21:50:24 +0000 Subject: [PATCH v1 1/1] Add function to return DSA area for a dshash table A caller using GetNamedDSHash() to retrieve a dshash table may also want to limit its size. Add dshash_get_dsa_area(), which returns the dsa_area for a given dshash_table, allowing callers to pass it to dsa_set_size_limit(). --- src/backend/lib/dshash.c | 11 +++++++++++ src/include/lib/dshash.h | 1 + 2 files changed, 12 insertions(+) diff --git a/src/backend/lib/dshash.c b/src/backend/lib/dshash.c index 1999989c14f..62ac68d4add 100644 --- a/src/backend/lib/dshash.c +++ b/src/backend/lib/dshash.c @@ -363,6 +363,17 @@ dshash_destroy(dshash_table *hash_table) pfree(hash_table); } +/* + * Get the DSA area used by this hash table. + */ +dsa_area * +dshash_get_dsa_area(dshash_table *hash_table) +{ + Assert(hash_table->control->magic == DSHASH_MAGIC); + + return hash_table->area; +} + /* * Get a handle that can be used by other processes to attach to this hash * table. diff --git a/src/include/lib/dshash.h b/src/include/lib/dshash.h index 64b758b381b..b868084df04 100644 --- a/src/include/lib/dshash.h +++ b/src/include/lib/dshash.h @@ -89,6 +89,7 @@ extern dshash_table *dshash_attach(dsa_area *area, dshash_table_handle handle, void *arg); extern void dshash_detach(dshash_table *hash_table); +extern dsa_area *dshash_get_dsa_area(dshash_table *hash_table); extern dshash_table_handle dshash_get_hash_table_handle(dshash_table *hash_table); extern void dshash_destroy(dshash_table *hash_table); -- 2.50.1