Add new direct message storage functions to slave store

synapse/app/synchrotron.py

@@ -36,6 +36,7 @@ from synapse.replication.slave.storage.registration import SlavedRegistrationSto
 from synapse.replication.slave.storage.filtering import SlavedFilteringStore
 from synapse.replication.slave.storage.push_rule import SlavedPushRuleStore
 from synapse.replication.slave.storage.presence import SlavedPresenceStore
+from synapse.replication.slave.storage.deviceinbox import SlavedDeviceInboxStore
 from synapse.server import HomeServer
 from synapse.storage.client_ips import ClientIpStore
 from synapse.storage.engines import create_engine
@@ -72,6 +73,7 @@ class SynchrotronSlavedStore(
     SlavedRegistrationStore,
     SlavedFilteringStore,
     SlavedPresenceStore,
+    SlavedDeviceInboxStore,
     BaseSlavedStore,
     ClientIpStore,  # After BaseSlavedStore because the constructor is different
 ):

synapse/replication/slave/storage/deviceinbox.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 OpenMarket Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from ._base import BaseSlavedStore
+from ._slaved_id_tracker import SlavedIdTracker
+from synapse.storage import DataStore
+
+
+class SlavedDeviceInboxStore(BaseSlavedStore):
+    def __init__(self, db_conn, hs):
+        super(SlavedDeviceInboxStore, self).__init__(db_conn, hs)
+        self._device_inbox_id_gen = SlavedIdTracker(
+            db_conn, "device_inbox", "stream_id",
+        )
+
+    get_to_device_stream_token = DataStore.get_to_device_stream_token.__func__
+    get_new_messages_for_device = DataStore.get_new_messages_for_device.__func__
+    delete_messages_for_device = DataStore.delete_messages_for_device.__func__