Merge pull request #1030 from matrix-org/erikj/cache_contexts

Add concept of cache contexts

2 files changed, 9 insertions, 34 deletions

diff --git a/synapse/push/action_generator.py b/synapse/push/action_generator.py
index b2c94bfaac..ed2ccc4dfb 100644
--- a/synapse/push/action_generator.py
+++ b/synapse/push/action_generator.py
@@ -40,7 +40,7 @@ class ActionGenerator:
     def handle_push_actions_for_event(self, event, context):
         with Measure(self.clock, "evaluator_for_event"):
             bulk_evaluator = yield evaluator_for_event(
-                event, self.hs, self.store, context.current_state
+                event, self.hs, self.store, context.state_group, context.current_state
             )
 
         with Measure(self.clock, "action_for_event_by_user"):
diff --git a/synapse/push/bulk_push_rule_evaluator.py b/synapse/push/bulk_push_rule_evaluator.py
index 756e5da513..004eded61f 100644
--- a/synapse/push/bulk_push_rule_evaluator.py
+++ b/synapse/push/bulk_push_rule_evaluator.py
@@ -36,35 +36,11 @@ def _get_rules(room_id, user_ids, store):
 
 
 @defer.inlineCallbacks
-def evaluator_for_event(event, hs, store, current_state):
-    room_id = event.room_id
-    # We also will want to generate notifs for other people in the room so
-    # their unread countss are correct in the event stream, but to avoid
-    # generating them for bot / AS users etc, we only do so for people who've
-    # sent a read receipt into the room.
-
-    local_users_in_room = set(
-        e.state_key for e in current_state.values()
-        if e.type == EventTypes.Member and e.membership == Membership.JOIN
-        and hs.is_mine_id(e.state_key)
+def evaluator_for_event(event, hs, store, state_group, current_state):
+    rules_by_user = yield store.bulk_get_push_rules_for_room(
+        event.room_id, state_group, current_state
     )
 
-    # users in the room who have pushers need to get push rules run because
-    # that's how their pushers work
-    if_users_with_pushers = yield store.get_if_users_have_pushers(
-        local_users_in_room
-    )
-    user_ids = set(
-        uid for uid, have_pusher in if_users_with_pushers.items() if have_pusher
-    )
-
-    users_with_receipts = yield store.get_users_with_read_receipts_in_room(room_id)
-
-    # any users with pushers must be ours: they have pushers
-    for uid in users_with_receipts:
-        if uid in local_users_in_room:
-            user_ids.add(uid)
-
     # if this event is an invite event, we may need to run rules for the user
     # who's been invited, otherwise they won't get told they've been invited
     if event.type == 'm.room.member' and event.content['membership'] == 'invite':
@@ -72,12 +48,12 @@ def evaluator_for_event(event, hs, store, current_state):
         if invited_user and hs.is_mine_id(invited_user):
             has_pusher = yield store.user_has_pusher(invited_user)
             if has_pusher:
-                user_ids.add(invited_user)
-
-    rules_by_user = yield _get_rules(room_id, user_ids, store)
+                rules_by_user[invited_user] = yield store.get_push_rules_for_user(
+                    invited_user
+                )
 
     defer.returnValue(BulkPushRuleEvaluator(
-        room_id, rules_by_user, user_ids, store
+        event.room_id, rules_by_user, store
     ))
 
 
@@ -90,10 +66,9 @@ class BulkPushRuleEvaluator:
     the same logic to run the actual rules, but could be optimised further
     (see https://matrix.org/jira/browse/SYN-562)
     """
-    def __init__(self, room_id, rules_by_user, users_in_room, store):
+    def __init__(self, room_id, rules_by_user, store):
         self.room_id = room_id
         self.rules_by_user = rules_by_user
-        self.users_in_room = users_in_room
         self.store = store
 
     @defer.inlineCallbacks