diff options
Diffstat (limited to '')
| -rw-r--r-- | changelog.d/3794.misc | 1 | ||||
| -rw-r--r-- | synapse/handlers/typing.py | 22 |
2 files changed, 20 insertions, 3 deletions
diff --git a/changelog.d/3794.misc b/changelog.d/3794.misc new file mode 100644 index 0000000000..6b98c9609b --- /dev/null +++ b/changelog.d/3794.misc @@ -0,0 +1 @@ +Speed up calculation of typing updates for replication diff --git a/synapse/handlers/typing.py b/synapse/handlers/typing.py index 2d2d3d5a0d..65f475d639 100644 --- a/synapse/handlers/typing.py +++ b/synapse/handlers/typing.py @@ -20,6 +20,7 @@ from twisted.internet import defer from synapse.api.errors import AuthError, SynapseError from synapse.types import UserID, get_domain_from_id +from synapse.util.caches.stream_change_cache import StreamChangeCache from synapse.util.logcontext import run_in_background from synapse.util.metrics import Measure from synapse.util.wheel_timer import WheelTimer @@ -68,6 +69,11 @@ class TypingHandler(object): # map room IDs to sets of users currently typing self._room_typing = {} + # caches which room_ids changed at which serials + self._typing_stream_change_cache = StreamChangeCache( + "TypingStreamChangeCache", self._latest_room_serial, + ) + self.clock.looping_call( self._handle_timeouts, 5000, @@ -274,19 +280,29 @@ class TypingHandler(object): self._latest_room_serial += 1 self._room_serials[member.room_id] = self._latest_room_serial + self._typing_stream_change_cache.entity_has_changed( + member.room_id, self._latest_room_serial, + ) self.notifier.on_new_event( "typing_key", self._latest_room_serial, rooms=[member.room_id] ) def get_all_typing_updates(self, last_id, current_id): - # TODO: Work out a way to do this without scanning the entire state. if last_id == current_id: return [] + changed_rooms = self._typing_stream_change_cache.get_all_entities_changed( + last_id, + ) + + if changed_rooms is None: + changed_rooms = self._room_serials + rows = [] - for room_id, serial in self._room_serials.items(): - if last_id < serial and serial <= current_id: + for room_id in changed_rooms: + serial = self._room_serials[room_id] + if last_id < serial <= current_id: typing = self._room_typing[room_id] rows.append((serial, room_id, list(typing))) rows.sort() |