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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 # NB: Assumes that we are only persisting events for one room
# at a time. # at a time.
# map room_id->list[event_ids] giving the new forward
# extremities in each room
new_forward_extremeties = {} 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 = {} 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: if not backfilled:
with Measure(self._clock, "_calculate_state_and_extrem"): with Measure(self._clock, "_calculate_state_and_extrem"):
# Work out the new "current state" for each room. # Work out the new "current state" for each room.
@ -393,11 +405,12 @@ class EventsStore(SQLBaseStore):
ev_ctx_rm, new_latest_event_ids, ev_ctx_rm, new_latest_event_ids,
) )
if current_state is not None: if current_state is not None:
current_state_for_room[room_id] = current_state
delta = yield self._calculate_state_delta( delta = yield self._calculate_state_delta(
room_id, current_state, room_id, current_state,
) )
if delta is not None: if delta is not None:
current_state_for_room[room_id] = delta state_delta_for_room[room_id] = delta
yield self.runInteraction( yield self.runInteraction(
"persist_events", "persist_events",
@ -405,7 +418,7 @@ class EventsStore(SQLBaseStore):
events_and_contexts=chunk, events_and_contexts=chunk,
backfilled=backfilled, backfilled=backfilled,
delete_existing=delete_existing, 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, new_forward_extremeties=new_forward_extremeties,
) )
persist_event_counter.inc_by(len(chunk)) persist_event_counter.inc_by(len(chunk))
@ -422,7 +435,7 @@ class EventsStore(SQLBaseStore):
event_counter.inc(event.type, origin_type, origin_entity) 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( self.get_current_state_ids.prefill(
(room_id, ), new_state (room_id, ), new_state
) )
@ -586,10 +599,10 @@ class EventsStore(SQLBaseStore):
Assumes that we are only persisting events for one room at a time. Assumes that we are only persisting events for one room at a time.
Returns: 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 i.e. (type, state_key) -> event_id. `to_delete` are the entries to
first be deleted from current_state_events, `to_insert` are entries 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) existing_state = yield self.get_current_state_ids(room_id)
@ -610,7 +623,7 @@ class EventsStore(SQLBaseStore):
if ev_id in events_to_insert if ev_id in events_to_insert
} }
defer.returnValue((to_delete, to_insert, current_state)) defer.returnValue((to_delete, to_insert))
@defer.inlineCallbacks @defer.inlineCallbacks
def get_event(self, event_id, check_redacted=True, def get_event(self, event_id, check_redacted=True,
@ -670,7 +683,7 @@ class EventsStore(SQLBaseStore):
@log_function @log_function
def _persist_events_txn(self, txn, events_and_contexts, backfilled, 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={}): new_forward_extremeties={}):
"""Insert some number of room events into the necessary database tables. """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 delete_existing (bool): True to purge existing table rows for the
events from the database. This is useful when retrying due to events from the database. This is useful when retrying due to
IntegrityError. 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 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 (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 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 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( self._update_forward_extremities_txn(
txn, txn,
@ -764,7 +777,7 @@ class EventsStore(SQLBaseStore):
def _update_current_state_txn(self, txn, state_delta_by_room, max_stream_order): 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(): 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( txn.executemany(
"DELETE FROM current_state_events WHERE event_id = ?", "DELETE FROM current_state_events WHERE event_id = ?",
[(ev_id,) for ev_id in to_delete.itervalues()], [(ev_id,) for ev_id in to_delete.itervalues()],