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Remove redundant return value from _calculate_state_delta

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we already have the state from _get_new_state_after_events, so returning it
from _calculate_state_delta is just confusing.
This commit is contained in:
Richard van der Hoff 2018-01-20 00:23:36 +00:00
parent db91e72ade
commit ee6fb4cf85
1 changed files with 23 additions and 10 deletions
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33
synapse/storage/events.py
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@ -342,8 +342,20 @@ class EventsStore(SQLBaseStore):
# NB: Assumes that we are only persisting events for one room
# at a time.
# map room_id->list[event_ids] giving the new forward
# extremities in each room
new_forward_extremeties = {}
# map room_id->(type,state_key)->event_id tracking the full
# state in each room after adding these events
current_state_for_room = {}
# map room_id->(to_delete, to_insert) where each entry is
# a map (type,key)->event_id giving the state delta in each
# room
state_delta_for_room = {}
if not backfilled:
with Measure(self._clock, "_calculate_state_and_extrem"):
# Work out the new "current state" for each room.
@ -393,11 +405,12 @@ class EventsStore(SQLBaseStore):
ev_ctx_rm, new_latest_event_ids,
)
if current_state is not None:
current_state_for_room[room_id] = current_state
delta = yield self._calculate_state_delta(
room_id, current_state,
)
if delta is not None:
current_state_for_room[room_id] = delta
state_delta_for_room[room_id] = delta
yield self.runInteraction(
"persist_events",
@ -405,7 +418,7 @@ class EventsStore(SQLBaseStore):
events_and_contexts=chunk,
backfilled=backfilled,
delete_existing=delete_existing,
current_state_for_room=current_state_for_room,
state_delta_for_room=state_delta_for_room,
new_forward_extremeties=new_forward_extremeties,
)
persist_event_counter.inc_by(len(chunk))
@ -422,7 +435,7 @@ class EventsStore(SQLBaseStore):
event_counter.inc(event.type, origin_type, origin_entity)
for room_id, (_, _, new_state) in current_state_for_room.iteritems():
for room_id, new_state in current_state_for_room.iteritems():
self.get_current_state_ids.prefill(
(room_id, ), new_state
)
@ -586,10 +599,10 @@ class EventsStore(SQLBaseStore):
Assumes that we are only persisting events for one room at a time.
Returns:
3-tuple (to_delete, to_insert, new_state) where both are state dicts,
2-tuple (to_delete, to_insert) where both are state dicts,
i.e. (type, state_key) -> event_id. `to_delete` are the entries to
first be deleted from current_state_events, `to_insert` are entries
to insert. `new_state` is the full set of state.
to insert.
"""
existing_state = yield self.get_current_state_ids(room_id)
@ -610,7 +623,7 @@ class EventsStore(SQLBaseStore):
if ev_id in events_to_insert
}
defer.returnValue((to_delete, to_insert, current_state))
defer.returnValue((to_delete, to_insert))
@defer.inlineCallbacks
def get_event(self, event_id, check_redacted=True,
@ -670,7 +683,7 @@ class EventsStore(SQLBaseStore):
@log_function
def _persist_events_txn(self, txn, events_and_contexts, backfilled,
delete_existing=False, current_state_for_room={},
delete_existing=False, state_delta_for_room={},
new_forward_extremeties={}):
"""Insert some number of room events into the necessary database tables.
@ -686,7 +699,7 @@ class EventsStore(SQLBaseStore):
delete_existing (bool): True to purge existing table rows for the
events from the database. This is useful when retrying due to
IntegrityError.
current_state_for_room (dict[str, (list[str], list[str])]):
state_delta_for_room (dict[str, (list[str], list[str])]):
The current-state delta for each room. For each room, a tuple
(to_delete, to_insert), being a list of event ids to be removed
from the current state, and a list of event ids to be added to
@ -698,7 +711,7 @@ class EventsStore(SQLBaseStore):
"""
max_stream_order = events_and_contexts[-1][0].internal_metadata.stream_ordering
self._update_current_state_txn(txn, current_state_for_room, max_stream_order)
self._update_current_state_txn(txn, state_delta_for_room, max_stream_order)
self._update_forward_extremities_txn(
txn,
@ -764,7 +777,7 @@ class EventsStore(SQLBaseStore):
def _update_current_state_txn(self, txn, state_delta_by_room, max_stream_order):
for room_id, current_state_tuple in state_delta_by_room.iteritems():
to_delete, to_insert, _ = current_state_tuple
to_delete, to_insert = current_state_tuple
txn.executemany(
"DELETE FROM current_state_events WHERE event_id = ?",
[(ev_id,) for ev_id in to_delete.itervalues()],