From 79926e016e98d4074aac4803d4d262dfd9c570c4 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Mon, 13 Mar 2017 09:50:10 +0000 Subject: [PATCH] Assume rooms likely haven't changed --- synapse/handlers/room_list.py | 19 +++++++++++-------- synapse/storage/stream.py | 3 +++ 2 files changed, 14 insertions(+), 8 deletions(-) diff --git a/synapse/handlers/room_list.py b/synapse/handlers/room_list.py index 6283caaf7..2f82c520c 100644 --- a/synapse/handlers/room_list.py +++ b/synapse/handlers/room_list.py @@ -120,16 +120,19 @@ class RoomListHandler(BaseHandler): @defer.inlineCallbacks def get_order_for_room(room_id): - latest_event_ids = yield self.store.get_forward_extremeties_for_room( - room_id, stream_token - ) + joined_users = yield self.store.get_users_in_room(room_id) + if self.store.has_room_changed_since(room_id, stream_token): + latest_event_ids = yield self.store.get_forward_extremeties_for_room( + room_id, stream_token + ) - if not latest_event_ids: - return + if not latest_event_ids: + return + + joined_users = yield self.state_handler.get_current_user_in_room( + room_id, latest_event_ids, + ) - joined_users = yield self.state_handler.get_current_user_in_room( - room_id, latest_event_ids, - ) num_joined_users = len(joined_users) rooms_to_num_joined[room_id] = num_joined_users diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py index 200d12463..dddd5fc0e 100644 --- a/synapse/storage/stream.py +++ b/synapse/storage/stream.py @@ -829,3 +829,6 @@ class StreamStore(SQLBaseStore): updatevalues={"stream_id": stream_id}, desc="update_federation_out_pos", ) + + def has_room_changed_since(self, room_id, stream_id): + return self._events_stream_cache.has_entity_changed(room_id, stream_id)