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-rw-r--r--synapse/storage/events.py48
1 files changed, 21 insertions, 27 deletions
diff --git a/synapse/storage/events.py b/synapse/storage/events.py
index 7dc49ceed6..17f9d27289 100644
--- a/synapse/storage/events.py
+++ b/synapse/storage/events.py
@@ -42,7 +42,7 @@ class EventsStore(SQLBaseStore):
             stream_ordering = self.min_token
 
         try:
-            invalidates = yield self.runInteraction(
+            yield self.runInteraction(
                 "persist_event",
                 self._persist_event_txn,
                 event=event,
@@ -52,11 +52,6 @@ class EventsStore(SQLBaseStore):
                 is_new_state=is_new_state,
                 current_state=current_state,
             )
-            for invalidated in invalidates:
-                invalidated_callback = invalidated[0]
-                invalidated_args = invalidated[1:]
-                invalidated_callback(*invalidated_args)
-
         except _RollbackButIsFineException:
             pass
 
@@ -96,10 +91,9 @@ class EventsStore(SQLBaseStore):
     def _persist_event_txn(self, txn, event, context, backfilled,
                            stream_ordering=None, is_new_state=True,
                            current_state=None):
-        invalidates = []
 
         # Remove the any existing cache entries for the event_id
-        invalidates.append((self._invalidate_get_event_cache, event.event_id))
+        txn.call_after(self._invalidate_get_event_cache, event.event_id)
 
         if stream_ordering is None:
             with self._stream_id_gen.get_next_txn(txn) as stream_ordering:
@@ -121,10 +115,12 @@ class EventsStore(SQLBaseStore):
 
             for s in current_state:
                 if s.type == EventTypes.Member:
-                    invalidates.extend([
-                        (self.get_rooms_for_user.invalidate, s.state_key),
-                        (self.get_joined_hosts_for_room.invalidate, s.room_id),
-                    ])
+                    txn.call_after(
+                        self.get_rooms_for_user.invalidate, s.state_key
+                    )
+                    txn.call_after(
+                        self.get_joined_hosts_for_room.invalidate, s.room_id
+                    )
                 self._simple_insert_txn(
                     txn,
                     "current_state_events",
@@ -161,11 +157,10 @@ class EventsStore(SQLBaseStore):
         outlier = event.internal_metadata.is_outlier()
 
         if not outlier:
-            self._store_state_groups_txn(txn, invalidates, event, context)
+            self._store_state_groups_txn(txn, event, context)
 
             self._update_min_depth_for_room_txn(
                 txn,
-                invalidates,
                 event.room_id,
                 event.depth
             )
@@ -207,11 +202,10 @@ class EventsStore(SQLBaseStore):
                     sql,
                     (False, event.event_id,)
                 )
-            return invalidates
+            return
 
         self._handle_prev_events(
             txn,
-            invalidates,
             outlier=outlier,
             event_id=event.event_id,
             prev_events=event.prev_events,
@@ -219,13 +213,13 @@ class EventsStore(SQLBaseStore):
         )
 
         if event.type == EventTypes.Member:
-            self._store_room_member_txn(txn, invalidates, event)
+            self._store_room_member_txn(txn, event)
         elif event.type == EventTypes.Name:
-            self._store_room_name_txn(txn, invalidates, event)
+            self._store_room_name_txn(txn, event)
         elif event.type == EventTypes.Topic:
-            self._store_room_topic_txn(txn, invalidates, event)
+            self._store_room_topic_txn(txn, event)
         elif event.type == EventTypes.Redaction:
-            self._store_redaction(txn, invalidates, event)
+            self._store_redaction(txn, event)
 
         event_dict = {
             k: v
@@ -295,20 +289,20 @@ class EventsStore(SQLBaseStore):
 
         if context.rejected:
             self._store_rejections_txn(
-                txn, invalidates, event.event_id, context.rejected
+                txn, event.event_id, context.rejected
             )
 
         for hash_alg, hash_base64 in event.hashes.items():
             hash_bytes = decode_base64(hash_base64)
             self._store_event_content_hash_txn(
-                txn, invalidates, event.event_id, hash_alg, hash_bytes,
+                txn, event.event_id, hash_alg, hash_bytes,
             )
 
         for prev_event_id, prev_hashes in event.prev_events:
             for alg, hash_base64 in prev_hashes.items():
                 hash_bytes = decode_base64(hash_base64)
                 self._store_prev_event_hash_txn(
-                    txn, invalidates, event.event_id, prev_event_id, alg,
+                    txn, event.event_id, prev_event_id, alg,
                     hash_bytes
                 )
 
@@ -325,7 +319,7 @@ class EventsStore(SQLBaseStore):
 
         (ref_alg, ref_hash_bytes) = compute_event_reference_hash(event)
         self._store_event_reference_hash_txn(
-            txn, invalidates, event.event_id, ref_alg, ref_hash_bytes
+            txn, event.event_id, ref_alg, ref_hash_bytes
         )
 
         if event.is_state():
@@ -372,11 +366,11 @@ class EventsStore(SQLBaseStore):
                     }
                 )
 
-        return invalidates
+        return
 
-    def _store_redaction(self, txn, invalidates, event):
+    def _store_redaction(self, txn, event):
         # invalidate the cache for the redacted event
-        invalidates.append((self._invalidate_get_event_cache, event.redacts))
+        txn.call_after(self._invalidate_get_event_cache, event.redacts)
         txn.execute(
             "INSERT INTO redactions (event_id, redacts) VALUES (?,?)",
             (event.event_id, event.redacts)