diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/push/bulk_push_rule_evaluator.py | 2 | ||||
| -rw-r--r-- | synapse/storage/databases/main/pusher.py | 2 | ||||
| -rw-r--r-- | synapse/storage/databases/main/receipts.py | 11 | ||||
| -rw-r--r-- | synapse/storage/databases/main/roommember.py | 2 | ||||
| -rw-r--r-- | synapse/util/caches/deferred_cache.py | 35 |
5 files changed, 29 insertions, 23 deletions
diff --git a/synapse/push/bulk_push_rule_evaluator.py b/synapse/push/bulk_push_rule_evaluator.py index c440f2545c..a701defcdd 100644 --- a/synapse/push/bulk_push_rule_evaluator.py +++ b/synapse/push/bulk_push_rule_evaluator.py @@ -496,6 +496,6 @@ class _Invalidation(namedtuple("_Invalidation", ("cache", "room_id"))): # dedupe when we add callbacks to lru cache nodes, otherwise the number # of callbacks would grow. def __call__(self): - rules = self.cache.get(self.room_id, None, update_metrics=False) + rules = self.cache.get_immediate(self.room_id, None, update_metrics=False) if rules: rules.invalidate_all() diff --git a/synapse/storage/databases/main/pusher.py b/synapse/storage/databases/main/pusher.py index df8609b97b..7997242d90 100644 --- a/synapse/storage/databases/main/pusher.py +++ b/synapse/storage/databases/main/pusher.py @@ -303,7 +303,7 @@ class PusherStore(PusherWorkerStore): lock=False, ) - user_has_pusher = self.get_if_user_has_pusher.cache.get( + user_has_pusher = self.get_if_user_has_pusher.cache.get_immediate( (user_id,), None, update_metrics=False ) diff --git a/synapse/storage/databases/main/receipts.py b/synapse/storage/databases/main/receipts.py index 5cdf16521c..ca7917c989 100644 --- a/synapse/storage/databases/main/receipts.py +++ b/synapse/storage/databases/main/receipts.py @@ -25,7 +25,6 @@ from synapse.storage.database import DatabasePool from synapse.storage.util.id_generators import StreamIdGenerator from synapse.types import JsonDict from synapse.util import json_encoder -from synapse.util.async_helpers import ObservableDeferred from synapse.util.caches.descriptors import cached, cachedList from synapse.util.caches.stream_change_cache import StreamChangeCache @@ -413,18 +412,10 @@ class ReceiptsWorkerStore(SQLBaseStore, metaclass=abc.ABCMeta): if receipt_type != "m.read": return - # Returns either an ObservableDeferred or the raw result - res = self.get_users_with_read_receipts_in_room.cache.get( + res = self.get_users_with_read_receipts_in_room.cache.get_immediate( room_id, None, update_metrics=False ) - # first handle the ObservableDeferred case - if isinstance(res, ObservableDeferred): - if res.has_called(): - res = res.get_result() - else: - res = None - if res and user_id in res: # We'd only be adding to the set, so no point invalidating if the # user is already there diff --git a/synapse/storage/databases/main/roommember.py b/synapse/storage/databases/main/roommember.py index 20fcdaa529..9b08b49862 100644 --- a/synapse/storage/databases/main/roommember.py +++ b/synapse/storage/databases/main/roommember.py @@ -531,7 +531,7 @@ class RoomMemberWorkerStore(EventsWorkerStore): # If we do then we can reuse that result and simply update it with # any membership changes in `delta_ids` if context.prev_group and context.delta_ids: - prev_res = self._get_joined_users_from_context.cache.get( + prev_res = self._get_joined_users_from_context.cache.get_immediate( (room_id, context.prev_group), None ) if prev_res and isinstance(prev_res, dict): diff --git a/synapse/util/caches/deferred_cache.py b/synapse/util/caches/deferred_cache.py index 4026e1f8fa..faeef75506 100644 --- a/synapse/util/caches/deferred_cache.py +++ b/synapse/util/caches/deferred_cache.py @@ -17,7 +17,16 @@ import enum import threading -from typing import Callable, Generic, Iterable, MutableMapping, Optional, TypeVar, cast +from typing import ( + Callable, + Generic, + Iterable, + MutableMapping, + Optional, + TypeVar, + Union, + cast, +) from prometheus_client import Gauge @@ -33,7 +42,7 @@ cache_pending_metric = Gauge( ["name"], ) - +T = TypeVar("T") KT = TypeVar("KT") VT = TypeVar("VT") @@ -119,21 +128,21 @@ class DeferredCache(Generic[KT, VT]): def get( self, key: KT, - default=_Sentinel.sentinel, callback: Optional[Callable[[], None]] = None, update_metrics: bool = True, - ): + ) -> Union[ObservableDeferred, VT]: """Looks the key up in the caches. Args: key(tuple) - default: What is returned if key is not in the caches. If not - specified then function throws KeyError instead callback(fn): Gets called when the entry in the cache is invalidated update_metrics (bool): whether to update the cache hit rate metrics Returns: Either an ObservableDeferred or the result itself + + Raises: + KeyError if the key is not found in the cache """ callbacks = [callback] if callback else [] val = self._pending_deferred_cache.get(key, _Sentinel.sentinel) @@ -145,13 +154,19 @@ class DeferredCache(Generic[KT, VT]): m.inc_hits() return val.deferred - val = self.cache.get( - key, default, callbacks=callbacks, update_metrics=update_metrics + val2 = self.cache.get( + key, _Sentinel.sentinel, callbacks=callbacks, update_metrics=update_metrics ) - if val is _Sentinel.sentinel: + if val2 is _Sentinel.sentinel: raise KeyError() else: - return val + return val2 + + def get_immediate( + self, key: KT, default: T, update_metrics: bool = True + ) -> Union[VT, T]: + """If we have a *completed* cached value, return it.""" + return self.cache.get(key, default, update_metrics=update_metrics) def set( self, |