1 files changed, 13 insertions, 13 deletions
diff --git a/synapse/storage/databases/state/store.py b/synapse/storage/databases/state/store.py
index 7f104ad936..e924f1ca3b 100644
--- a/synapse/storage/databases/state/store.py
+++ b/synapse/storage/databases/state/store.py
@@ -17,8 +17,6 @@ import logging
 from collections import namedtuple
 from typing import Dict, Iterable, List, Set, Tuple
 
-from twisted.internet import defer
-
 from synapse.api.constants import EventTypes
 from synapse.storage._base import SQLBaseStore
 from synapse.storage.database import DatabasePool
@@ -103,7 +101,7 @@ class StateGroupDataStore(StateBackgroundUpdateStore, SQLBaseStore):
         )
 
     @cached(max_entries=10000, iterable=True)
-    def get_state_group_delta(self, state_group):
+    async def get_state_group_delta(self, state_group):
         """Given a state group try to return a previous group and a delta between
         the old and the new.
 
@@ -135,7 +133,7 @@ class StateGroupDataStore(StateBackgroundUpdateStore, SQLBaseStore):
                 {(row["type"], row["state_key"]): row["event_id"] for row in delta_ids},
             )
 
-        return self.db_pool.runInteraction(
+        return await self.db_pool.runInteraction(
             "get_state_group_delta", _get_state_group_delta_txn
         )
 
@@ -367,9 +365,9 @@ class StateGroupDataStore(StateBackgroundUpdateStore, SQLBaseStore):
                 fetched_keys=non_member_types,
             )
 
-    def store_state_group(
+    async def store_state_group(
         self, event_id, room_id, prev_group, delta_ids, current_state_ids
-    ):
+    ) -> int:
         """Store a new set of state, returning a newly assigned state group.
 
         Args:
@@ -383,7 +381,7 @@ class StateGroupDataStore(StateBackgroundUpdateStore, SQLBaseStore):
                 to event_id.
 
         Returns:
-            Deferred[int]: The state group ID
+            The state group ID
         """
 
         def _store_state_group_txn(txn):
@@ -484,11 +482,13 @@ class StateGroupDataStore(StateBackgroundUpdateStore, SQLBaseStore):
 
             return state_group
 
-        return self.db_pool.runInteraction("store_state_group", _store_state_group_txn)
+        return await self.db_pool.runInteraction(
+            "store_state_group", _store_state_group_txn
+        )
 
-    def purge_unreferenced_state_groups(
+    async def purge_unreferenced_state_groups(
         self, room_id: str, state_groups_to_delete
-    ) -> defer.Deferred:
+    ) -> None:
         """Deletes no longer referenced state groups and de-deltas any state
         groups that reference them.
 
@@ -499,7 +499,7 @@ class StateGroupDataStore(StateBackgroundUpdateStore, SQLBaseStore):
                 to delete.
         """
 
-        return self.db_pool.runInteraction(
+        await self.db_pool.runInteraction(
             "purge_unreferenced_state_groups",
             self._purge_unreferenced_state_groups,
             room_id,
@@ -594,7 +594,7 @@ class StateGroupDataStore(StateBackgroundUpdateStore, SQLBaseStore):
 
         return {row["state_group"]: row["prev_state_group"] for row in rows}
 
-    def purge_room_state(self, room_id, state_groups_to_delete):
+    async def purge_room_state(self, room_id, state_groups_to_delete):
         """Deletes all record of a room from state tables
 
         Args:
@@ -602,7 +602,7 @@ class StateGroupDataStore(StateBackgroundUpdateStore, SQLBaseStore):
             state_groups_to_delete (list[int]): State groups to delete
         """
 
-        return self.db_pool.runInteraction(
+        await self.db_pool.runInteraction(
             "purge_room_state",
             self._purge_room_state_txn,
             room_id,