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Short circuit when we have delta ids

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This commit is contained in:
Erik Johnston 2017-05-16 13:40:01 +01:00
parent 6fa8148ccb
commit ad53fc3cf4
1 changed files with 19 additions and 3 deletions
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22
synapse/storage/roommember.py
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@ -387,7 +387,9 @@ class RoomMemberStore(SQLBaseStore):
state_group = object() state_group = object()
return self._get_joined_users_from_context( return self._get_joined_users_from_context(
event.room_id, state_group, context.current_state_ids, event=event, event.room_id, state_group, context.current_state_ids,
event=event,
context=context,
) )
def get_joined_users_from_state(self, room_id, state_group, state_ids): def get_joined_users_from_state(self, room_id, state_group, state_ids):
@ -405,18 +407,33 @@ class RoomMemberStore(SQLBaseStore):
@cachedInlineCallbacks(num_args=2, cache_context=True, iterable=True, @cachedInlineCallbacks(num_args=2, cache_context=True, iterable=True,
max_entries=100000) max_entries=100000)
def _get_joined_users_from_context(self, room_id, state_group, current_state_ids, def _get_joined_users_from_context(self, room_id, state_group, current_state_ids,
cache_context, event=None): cache_context, event=None, context=None):
# We don't use `state_group`, it's there so that we can cache based # We don't use `state_group`, it's there so that we can cache based
# on it. However, it's important that it's never None, since two current_states # on it. However, it's important that it's never None, since two current_states
# with a state_group of None are likely to be different. # with a state_group of None are likely to be different.
# See bulk_get_push_rules_for_room for how we work around this. # See bulk_get_push_rules_for_room for how we work around this.
assert state_group is not None assert state_group is not None
users_in_room = {}
member_event_ids = [ member_event_ids = [
e_id e_id
for key, e_id in current_state_ids.iteritems() for key, e_id in current_state_ids.iteritems()
if key[0] == EventTypes.Member if key[0] == EventTypes.Member
] ]
if context is not None:
if context.prev_group and context.delta_ids:
prev_res = self._get_joined_users_from_context.cache.get(
(room_id, context.prev_group), None
)
if prev_res and isinstance(prev_res, dict):
users_in_room = dict(prev_res)
member_event_ids = [
e_id
for key, e_id in context.delta_ids.iteritems()
if key[0] == EventTypes.Member
]
for etype, state_key in context.delta_ids:
users_in_room.pop(state_key, None)
# We check if we have any of the member event ids in the event cache # We check if we have any of the member event ids in the event cache
# before we ask the DB # before we ask the DB
@ -431,7 +448,6 @@ class RoomMemberStore(SQLBaseStore):
) )
missing_member_event_ids = [] missing_member_event_ids = []
users_in_room = {}
for event_id in member_event_ids: for event_id in member_event_ids:
ev_entry = event_map.get(event_id) ev_entry = event_map.get(event_id)
if ev_entry: if ev_entry: