Merge pull request #219 from matrix-org/erikj/dictionary_cache

Dictionary and list caches

3 files changed, 41 insertions, 37 deletions

diff --git a/synapse/handlers/federation.py b/synapse/handlers/federation.py
index f7155fd8d3..1e3dccf5a8 100644
--- a/synapse/handlers/federation.py
+++ b/synapse/handlers/federation.py
@@ -229,15 +229,15 @@ class FederationHandler(BaseHandler):
 
     @defer.inlineCallbacks
     def _filter_events_for_server(self, server_name, room_id, events):
-        states = yield self.store.get_state_for_events(
-            room_id, [e.event_id for e in events],
+        event_to_state = yield self.store.get_state_for_events(
+            room_id, frozenset(e.event_id for e in events),
+            types=(
+                (EventTypes.RoomHistoryVisibility, ""),
+                (EventTypes.Member, None),
+            )
         )
 
-        events_and_states = zip(events, states)
-
-        def redact_disallowed(event_and_state):
-            event, state = event_and_state
-
+        def redact_disallowed(event, state):
             if not state:
                 return event
 
@@ -271,11 +271,10 @@ class FederationHandler(BaseHandler):
 
             return event
 
-        res = map(redact_disallowed, events_and_states)
-
-        logger.info("_filter_events_for_server %r", res)
-
-        defer.returnValue(res)
+        defer.returnValue([
+            redact_disallowed(e, event_to_state[e.event_id])
+            for e in events
+        ])
 
     @log_function
     @defer.inlineCallbacks
@@ -503,7 +502,7 @@ class FederationHandler(BaseHandler):
         event_ids = list(extremities.keys())
 
         states = yield defer.gatherResults([
-            self.state_handler.resolve_state_groups([e])
+            self.state_handler.resolve_state_groups(room_id, [e])
             for e in event_ids
         ])
         states = dict(zip(event_ids, [s[1] for s in states]))
diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py
index 9d6d4f0978..29e81085d1 100644
--- a/synapse/handlers/message.py
+++ b/synapse/handlers/message.py
@@ -137,15 +137,15 @@ class MessageHandler(BaseHandler):
 
     @defer.inlineCallbacks
     def _filter_events_for_client(self, user_id, room_id, events):
-        states = yield self.store.get_state_for_events(
-            room_id, [e.event_id for e in events],
+        event_id_to_state = yield self.store.get_state_for_events(
+            room_id, frozenset(e.event_id for e in events),
+            types=(
+                (EventTypes.RoomHistoryVisibility, ""),
+                (EventTypes.Member, user_id),
+            )
         )
 
-        events_and_states = zip(events, states)
-
-        def allowed(event_and_state):
-            event, state = event_and_state
-
+        def allowed(event, state):
             if event.type == EventTypes.RoomHistoryVisibility:
                 return True
 
@@ -175,10 +175,10 @@ class MessageHandler(BaseHandler):
 
             return True
 
-        events_and_states = filter(allowed, events_and_states)
         defer.returnValue([
-            ev
-            for ev, _ in events_and_states
+            event
+            for event in events
+            if allowed(event, event_id_to_state[event.event_id])
         ])
 
     @defer.inlineCallbacks
@@ -401,10 +401,14 @@ class MessageHandler(BaseHandler):
             except:
                 logger.exception("Failed to get snapshot")
 
-        yield defer.gatherResults(
-            [handle_room(e) for e in room_list],
-            consumeErrors=True
-        ).addErrback(unwrapFirstError)
+        # Only do N rooms at once
+        n = 5
+        d_list = [handle_room(e) for e in room_list]
+        for i in range(0, len(d_list), n):
+            yield defer.gatherResults(
+                d_list[i:i + n],
+                consumeErrors=True
+            ).addErrback(unwrapFirstError)
 
         ret = {
             "rooms": rooms_ret,
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index 6cff6230c1..7206ae23d7 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -294,15 +294,15 @@ class SyncHandler(BaseHandler):
 
     @defer.inlineCallbacks
     def _filter_events_for_client(self, user_id, room_id, events):
-        states = yield self.store.get_state_for_events(
-            room_id, [e.event_id for e in events],
+        event_id_to_state = yield self.store.get_state_for_events(
+            room_id, frozenset(e.event_id for e in events),
+            types=(
+                (EventTypes.RoomHistoryVisibility, ""),
+                (EventTypes.Member, user_id),
+            )
         )
 
-        events_and_states = zip(events, states)
-
-        def allowed(event_and_state):
-            event, state = event_and_state
-
+        def allowed(event, state):
             if event.type == EventTypes.RoomHistoryVisibility:
                 return True
 
@@ -331,10 +331,11 @@ class SyncHandler(BaseHandler):
                 return membership == Membership.INVITE
 
             return True
-        events_and_states = filter(allowed, events_and_states)
+
         defer.returnValue([
-            ev
-            for ev, _ in events_and_states
+            event
+            for event in events
+            if allowed(event, event_id_to_state[event.event_id])
         ])
 
     @defer.inlineCallbacks