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nostrdb: add ndb_subscription_filters

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Expose a way to get the set of filters for a subscription. On the rust
side, we should likely ndb_filter_clone each filter asap, because the
result of this function will only be valid up until the subscription
ends.

Signed-off-by: William Casarin <jb55@jb55.com>
This commit is contained in:
William Casarin
2024-10-23 13:13:38 -07:00
committed by Daniel D’Aquino
parent 47b79fc02e
commit 3018200e95
2 changed files with 15 additions and 0 deletions
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14
nostrdb/src/nostrdb.c
View File

@@ -6467,6 +6467,20 @@ int ndb_unsubscribe(struct ndb *ndb, uint64_t subid)
return 1;
}
struct ndb_filter *ndb_subscription_filters(struct ndb *ndb, uint64_t subid, int *filters)
{
struct ndb_subscription *sub;
sub = ndb_find_subscription(ndb, subid, NULL);
if (sub) {
*filters = sub->group.num_filters;
return sub->group.filters;
}
*filters = 0;
return NULL;
}
int ndb_num_subscriptions(struct ndb *ndb)
{
return ndb->monitor.num_subscriptions;

1
nostrdb/src/nostrdb.h
View File

@@ -521,6 +521,7 @@ int ndb_wait_for_notes(struct ndb *, uint64_t subid, uint64_t *note_ids, int not
int ndb_poll_for_notes(struct ndb *, uint64_t subid, uint64_t *note_ids, int note_id_capacity);
int ndb_unsubscribe(struct ndb *, uint64_t subid);
int ndb_num_subscriptions(struct ndb *);
struct ndb_filter *ndb_subscription_filters(struct ndb *, uint64_t subid, int *filters);
// FULLTEXT SEARCH
int ndb_text_search(struct ndb_txn *txn, const char *query, struct ndb_text_search_results *, struct ndb_text_search_config *);