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-rw-r--r--synapse/storage/events.py19
1 files changed, 5 insertions, 14 deletions
diff --git a/synapse/storage/events.py b/synapse/storage/events.py
index 7468e6e00c..c4dc3b3d51 100644
--- a/synapse/storage/events.py
+++ b/synapse/storage/events.py
@@ -24,7 +24,6 @@ from synapse.util.logutils import log_function
 from synapse.api.constants import EventTypes
 
 from canonicaljson import encode_canonical_json
-from contextlib import contextmanager
 from collections import namedtuple
 
 import logging
@@ -66,14 +65,9 @@ class EventsStore(SQLBaseStore):
             return
 
         if backfilled:
-            start = self.min_stream_token - 1
-            self.min_stream_token -= len(events_and_contexts) + 1
-            stream_orderings = range(start, self.min_stream_token, -1)
-
-            @contextmanager
-            def stream_ordering_manager():
-                yield stream_orderings
-            stream_ordering_manager = stream_ordering_manager()
+            stream_ordering_manager = self._backfill_id_gen.get_next_mult(
+                len(events_and_contexts)
+            )
         else:
             stream_ordering_manager = self._stream_id_gen.get_next_mult(
                 len(events_and_contexts)
@@ -130,7 +124,7 @@ class EventsStore(SQLBaseStore):
         except _RollbackButIsFineException:
             pass
 
-        max_persisted_id = yield self._stream_id_gen.get_max_token()
+        max_persisted_id = yield self._stream_id_gen.get_current_token()
         defer.returnValue((stream_ordering, max_persisted_id))
 
     @defer.inlineCallbacks
@@ -1117,10 +1111,7 @@ class EventsStore(SQLBaseStore):
 
     def get_current_backfill_token(self):
         """The current minimum token that backfilled events have reached"""
-
-        # TODO: Fix race with the persit_event txn by using one of the
-        # stream id managers
-        return -self.min_stream_token
+        return -self._backfill_id_gen.get_current_token()
 
     def get_all_new_events(self, last_backfill_id, last_forward_id,
                            current_backfill_id, current_forward_id, limit):