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4b965c862d
Part of #9744 Removes all redundant `# -*- coding: utf-8 -*-` lines from files, as python 3 automatically reads source code as utf-8 now. `Signed-off-by: Jonathan de Jong <jonathan@automatia.nl>`
49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
# Copyright 2016 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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from typing import Optional
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from synapse.storage.database import DatabasePool
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from synapse.storage.databases.main.cache import CacheInvalidationWorkerStore
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from synapse.storage.engines import PostgresEngine
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from synapse.storage.util.id_generators import MultiWriterIdGenerator
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logger = logging.getLogger(__name__)
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class BaseSlavedStore(CacheInvalidationWorkerStore):
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def __init__(self, database: DatabasePool, db_conn, hs):
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super().__init__(database, db_conn, hs)
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if isinstance(self.database_engine, PostgresEngine):
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self._cache_id_gen = MultiWriterIdGenerator(
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db_conn,
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database,
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stream_name="caches",
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instance_name=hs.get_instance_name(),
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tables=[
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(
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"cache_invalidation_stream_by_instance",
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"instance_name",
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"stream_id",
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)
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],
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sequence_name="cache_invalidation_stream_seq",
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writers=[],
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) # type: Optional[MultiWriterIdGenerator]
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else:
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self._cache_id_gen = None
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self.hs = hs
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