diff options
| -rw-r--r-- | synapse/storage/events.py | 38 | ||||
| -rw-r--r-- | synapse/storage/util/id_generators.py | 12 |
2 files changed, 27 insertions, 23 deletions
diff --git a/synapse/storage/events.py b/synapse/storage/events.py index a66e84b344..a5a6869079 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -23,6 +23,7 @@ from synapse.crypto.event_signing import compute_event_reference_hash from syutil.base64util import decode_base64 from syutil.jsonutil import encode_canonical_json +from contextlib import contextmanager import logging @@ -41,17 +42,25 @@ class EventsStore(SQLBaseStore): self.min_token -= 1 stream_ordering = self.min_token + if stream_ordering is None: + stream_ordering_manager = yield self._stream_id_gen.get_next(self) + else: + @contextmanager + def stream_ordering_manager(): + yield stream_ordering + try: - yield self.runInteraction( - "persist_event", - self._persist_event_txn, - event=event, - context=context, - backfilled=backfilled, - stream_ordering=stream_ordering, - is_new_state=is_new_state, - current_state=current_state, - ) + with stream_ordering_manager as stream_ordering: + yield self.runInteraction( + "persist_event", + self._persist_event_txn, + event=event, + context=context, + backfilled=backfilled, + stream_ordering=stream_ordering, + is_new_state=is_new_state, + current_state=current_state, + ) except _RollbackButIsFineException: pass @@ -95,15 +104,6 @@ class EventsStore(SQLBaseStore): # Remove the any existing cache entries for the 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: - return self._persist_event_txn( - txn, event, context, backfilled, - stream_ordering=stream_ordering, - is_new_state=is_new_state, - current_state=current_state, - ) - # We purposefully do this first since if we include a `current_state` # key, we *want* to update the `current_state_events` table if current_state: diff --git a/synapse/storage/util/id_generators.py b/synapse/storage/util/id_generators.py index e40eb8a8c4..89d1643f10 100644 --- a/synapse/storage/util/id_generators.py +++ b/synapse/storage/util/id_generators.py @@ -78,14 +78,18 @@ class StreamIdGenerator(object): self._current_max = None self._unfinished_ids = deque() - def get_next_txn(self, txn): + @defer.inlineCallbacks + def get_next(self, store): """ Usage: - with stream_id_gen.get_next_txn(txn) as stream_id: + with yield stream_id_gen.get_next as stream_id: # ... persist event ... """ if not self._current_max: - self._get_or_compute_current_max(txn) + yield store.runInteraction( + "_compute_current_max", + self._get_or_compute_current_max, + ) with self._lock: self._current_max += 1 @@ -101,7 +105,7 @@ class StreamIdGenerator(object): with self._lock: self._unfinished_ids.remove(next_id) - return manager() + defer.returnValue(manager()) @defer.inlineCallbacks def get_max_token(self, store): |