75 lines
2.5 KiB
Python
75 lines
2.5 KiB
Python
# -*- 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.
|
|
|
|
import logging
|
|
|
|
import six
|
|
|
|
from synapse.storage._base import _CURRENT_STATE_CACHE_NAME, SQLBaseStore
|
|
from synapse.storage.engines import PostgresEngine
|
|
|
|
from ._slaved_id_tracker import SlavedIdTracker
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
def __func__(inp):
|
|
if six.PY3:
|
|
return inp
|
|
else:
|
|
return inp.__func__
|
|
|
|
|
|
class BaseSlavedStore(SQLBaseStore):
|
|
def __init__(self, db_conn, hs):
|
|
super(BaseSlavedStore, self).__init__(db_conn, hs)
|
|
if isinstance(self.database_engine, PostgresEngine):
|
|
self._cache_id_gen = SlavedIdTracker(
|
|
db_conn, "cache_invalidation_stream", "stream_id",
|
|
)
|
|
else:
|
|
self._cache_id_gen = None
|
|
|
|
self.hs = hs
|
|
|
|
def stream_positions(self):
|
|
pos = {}
|
|
if self._cache_id_gen:
|
|
pos["caches"] = self._cache_id_gen.get_current_token()
|
|
return pos
|
|
|
|
def process_replication_rows(self, stream_name, token, rows):
|
|
if stream_name == "caches":
|
|
self._cache_id_gen.advance(token)
|
|
for row in rows:
|
|
if row.cache_func == _CURRENT_STATE_CACHE_NAME:
|
|
room_id = row.keys[0]
|
|
members_changed = set(row.keys[1:])
|
|
self._invalidate_state_caches(room_id, members_changed)
|
|
else:
|
|
try:
|
|
getattr(self, row.cache_func).invalidate(tuple(row.keys))
|
|
except AttributeError:
|
|
# We probably haven't pulled in the cache in this worker,
|
|
# which is fine.
|
|
pass
|
|
|
|
def _invalidate_cache_and_stream(self, txn, cache_func, keys):
|
|
txn.call_after(cache_func.invalidate, keys)
|
|
txn.call_after(self._send_invalidation_poke, cache_func, keys)
|
|
|
|
def _send_invalidation_poke(self, cache_func, keys):
|
|
self.hs.get_tcp_replication().send_invalidate_cache(cache_func, keys)
|