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6cfee09be9
Add db_conn parameters to the `__init__` methods of the *Store classes, so that they are all consistent, which makes the multiple inheritance work correctly (and so that we can later extract mixins which can be used in the slavedstores)
61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
# -*- coding: utf-8 -*-
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# 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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from synapse.storage._base import SQLBaseStore
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from synapse.storage.engines import PostgresEngine
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from ._slaved_id_tracker import SlavedIdTracker
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import logging
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logger = logging.getLogger(__name__)
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class BaseSlavedStore(SQLBaseStore):
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def __init__(self, db_conn, hs):
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super(BaseSlavedStore, self).__init__(db_conn, hs)
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if isinstance(self.database_engine, PostgresEngine):
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self._cache_id_gen = SlavedIdTracker(
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db_conn, "cache_invalidation_stream", "stream_id",
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)
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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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def stream_positions(self):
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pos = {}
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if self._cache_id_gen:
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pos["caches"] = self._cache_id_gen.get_current_token()
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return pos
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def process_replication_rows(self, stream_name, token, rows):
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if stream_name == "caches":
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self._cache_id_gen.advance(token)
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for row in rows:
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try:
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getattr(self, row.cache_func).invalidate(tuple(row.keys))
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except AttributeError:
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# We probably haven't pulled in the cache in this worker,
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# which is fine.
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pass
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def _invalidate_cache_and_stream(self, txn, cache_func, keys):
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txn.call_after(cache_func.invalidate, keys)
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txn.call_after(self._send_invalidation_poke, cache_func, keys)
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def _send_invalidation_poke(self, cache_func, keys):
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self.hs.get_tcp_replication().send_invalidate_cache(cache_func, keys)
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