node_ptr = cds_lfht_add_unique(ht->ht,
ht->hash_fct(event->node.key, lttng_ht_seed),
ht_match_ust_app_event, &key, &event->node.node);
node_ptr = cds_lfht_add_unique(ht->ht,
ht->hash_fct(event->node.key, lttng_ht_seed),
ht_match_ust_app_event, &key, &event->node.node);