diff options
Diffstat (limited to 'synapse/storage/persist_events.py')
| -rw-r--r-- | synapse/storage/persist_events.py | 42 |
1 files changed, 7 insertions, 35 deletions
diff --git a/synapse/storage/persist_events.py b/synapse/storage/persist_events.py index 97118045a1..a7f6338e05 100644 --- a/synapse/storage/persist_events.py +++ b/synapse/storage/persist_events.py @@ -487,12 +487,6 @@ class EventsPersistenceStorage: # extremities in each room new_forward_extremities: Dict[str, Set[str]] = {} - # map room_id->(type,state_key)->event_id tracking the full - # state in each room after adding these events. - # This is simply used to prefill the get_current_state_ids - # cache - current_state_for_room: Dict[str, StateMap[str]] = {} - # map room_id->(to_delete, to_insert) where to_delete is a list # of type/state keys to remove from current state, and to_insert # is a map (type,key)->event_id giving the state delta in each @@ -628,14 +622,8 @@ class EventsPersistenceStorage: state_delta_for_room[room_id] = delta - # If we have the current_state then lets prefill - # the cache with it. - if current_state is not None: - current_state_for_room[room_id] = current_state - await self.persist_events_store._persist_events_and_state_updates( chunk, - current_state_for_room=current_state_for_room, state_delta_for_room=state_delta_for_room, new_forward_extremities=new_forward_extremities, use_negative_stream_ordering=backfilled, @@ -733,7 +721,8 @@ class EventsPersistenceStorage: The first state map is the full new current state and the second is the delta to the existing current state. If both are None then - there has been no change. + there has been no change. Either or neither can be None if there + has been a change. The function may prune some old entries from the set of new forward extremities if it's safe to do so. @@ -743,9 +732,6 @@ class EventsPersistenceStorage: the new current state is only returned if we've already calculated it. """ - # map from state_group to ((type, key) -> event_id) state map - state_groups_map = {} - # Map from (prev state group, new state group) -> delta state dict state_group_deltas = {} @@ -759,16 +745,6 @@ class EventsPersistenceStorage: ) continue - if ctx.state_group in state_groups_map: - continue - - # We're only interested in pulling out state that has already - # been cached in the context. We'll pull stuff out of the DB later - # if necessary. - current_state_ids = ctx.get_cached_current_state_ids() - if current_state_ids is not None: - state_groups_map[ctx.state_group] = current_state_ids - if ctx.prev_group: state_group_deltas[(ctx.prev_group, ctx.state_group)] = ctx.delta_ids @@ -826,18 +802,14 @@ class EventsPersistenceStorage: delta_ids = state_group_deltas.get((old_state_group, new_state_group), None) if delta_ids is not None: # We have a delta from the existing to new current state, - # so lets just return that. If we happen to already have - # the current state in memory then lets also return that, - # but it doesn't matter if we don't. - new_state = state_groups_map.get(new_state_group) - return new_state, delta_ids, new_latest_event_ids + # so lets just return that. + return None, delta_ids, new_latest_event_ids # Now that we have calculated new_state_groups we need to get # their state IDs so we can resolve to a single state set. - missing_state = new_state_groups - set(state_groups_map) - if missing_state: - group_to_state = await self.state_store._get_state_for_groups(missing_state) - state_groups_map.update(group_to_state) + state_groups_map = await self.state_store._get_state_for_groups( + new_state_groups + ) if len(new_state_groups) == 1: # If there is only one state group, then we know what the current |