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Convert federation backfill to async

Browse source 
PaginationHandler.get_messages is only called by RoomMessageListRestServlet,
which is async.

Chase the code path down from there:
 - FederationHandler.maybe_backfill (and nested try_backfill)
 - FederationHandler.backfill
This commit is contained in:
Richard van der Hoff 2019-12-10 16:54:34 +00:00
parent 7c429f92d6
commit 7712e751b8
2 changed files with 35 additions and 39 deletions
Download patch file Download diff file Expand all files Collapse all files

27
synapse/handlers/pagination.py
View file

@ -280,8 +280,7 @@ class PaginationHandler(object):
await self.storage.purge_events.purge_room(room_id)
@defer.inlineCallbacks
def get_messages(
async def get_messages(
self,
requester,
room_id=None,
@ -307,7 +306,7 @@ class PaginationHandler(object):
room_token = pagin_config.from_token.room_key
else:
pagin_config.from_token = (
yield self.hs.get_event_sources().get_current_token_for_pagination()
await self.hs.get_event_sources().get_current_token_for_pagination()
)
room_token = pagin_config.from_token.room_key
@ -319,11 +318,11 @@ class PaginationHandler(object):
source_config = pagin_config.get_source_config("room")
with (yield self.pagination_lock.read(room_id)):
with (await self.pagination_lock.read(room_id)):
(
membership,
member_event_id,
) = yield self.auth.check_in_room_or_world_readable(room_id, user_id)
) = await self.auth.check_in_room_or_world_readable(room_id, user_id)
if source_config.direction == "b":
# if we're going backwards, we might need to backfill. This
@ -331,7 +330,7 @@ class PaginationHandler(object):
if room_token.topological:
max_topo = room_token.topological
else:
max_topo = yield self.store.get_max_topological_token(
max_topo = await self.store.get_max_topological_token(
room_id, room_token.stream
)
@ -339,18 +338,18 @@ class PaginationHandler(object):
# If they have left the room then clamp the token to be before
# they left the room, to save the effort of loading from the
# database.
leave_token = yield self.store.get_topological_token_for_event(
leave_token = await self.store.get_topological_token_for_event(
member_event_id
)
leave_token = RoomStreamToken.parse(leave_token)
if leave_token.topological < max_topo:
source_config.from_key = str(leave_token)
yield self.hs.get_handlers().federation_handler.maybe_backfill(
await self.hs.get_handlers().federation_handler.maybe_backfill(
room_id, max_topo
)
events, next_key = yield self.store.paginate_room_events(
events, next_key = await self.store.paginate_room_events(
room_id=room_id,
from_key=source_config.from_key,
to_key=source_config.to_key,
@ -365,7 +364,7 @@ class PaginationHandler(object):
if event_filter:
events = event_filter.filter(events)
events = yield filter_events_for_client(
events = await filter_events_for_client(
self.storage, user_id, events, is_peeking=(member_event_id is None)
)
@ -385,19 +384,19 @@ class PaginationHandler(object):
(EventTypes.Member, event.sender) for event in events
)
state_ids = yield self.state_store.get_state_ids_for_event(
state_ids = await self.state_store.get_state_ids_for_event(
events[0].event_id, state_filter=state_filter
)
if state_ids:
state = yield self.store.get_events(list(state_ids.values()))
state = await self.store.get_events(list(state_ids.values()))
state = state.values()
time_now = self.clock.time_msec()
chunk = {
"chunk": (
yield self._event_serializer.serialize_events(
await self._event_serializer.serialize_events(
events, time_now, as_client_event=as_client_event
)
),
@ -406,7 +405,7 @@ class PaginationHandler(object):
}
if state:
chunk["state"] = yield self._event_serializer.serialize_events(
chunk["state"] = await self._event_serializer.serialize_events(
state, time_now, as_client_event=as_client_event
)