res_sorcery_memory_cache: Add support for a full backend cache.

This change introduces the configuration option 'full_backend_cache'
which changes the cache to be a full mirror of the backend instead
of a per-object cache. This allows all sorcery retrieval operations
to be carried out against it and is useful for object types which
are used in a "retrieve all" or "retrieve some" pattern.

ASTERISK-25625 #close

Change-Id: Ie2993487e9c19de563413ad5561c7403b48caab5

1 files changed, 5 insertions, 1 deletions

diff --git a/main/sorcery.c b/main/sorcery.c
index b75eb8ba7..e78fc5c6a 100644
--- a/main/sorcery.c
+++ b/main/sorcery.c
@@ -1897,7 +1897,7 @@ void *ast_sorcery_retrieve_by_fields(const struct ast_sorcery *sorcery, const ch
 			}
 		}
 
-		if ((flags & AST_RETRIEVE_FLAG_MULTIPLE) || !object) {
+		if (((flags & AST_RETRIEVE_FLAG_MULTIPLE) && (!ao2_container_count(object) || !wizard->caching)) || !object) {
 			continue;
 		}
 
@@ -1935,6 +1935,10 @@ struct ao2_container *ast_sorcery_retrieve_by_regex(const struct ast_sorcery *so
 		}
 
 		wizard->wizard->callbacks.retrieve_regex(sorcery, wizard->data, object_type->name, objects, regex);
+
+		if (wizard->caching && ao2_container_count(objects)) {
+			break;
+		}
 	}
 	AST_VECTOR_RW_UNLOCK(&object_type->wizards);