Merge pull request #6263 from matrix-org/erikj/caches_return_deferreds

Quick fix to ensure cache descriptors always return deferreds
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Erik Johnston 2019-10-29 12:53:21 +01:00 committed by GitHub
commit 561133c3c5
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5 changed files with 9 additions and 9 deletions

1
changelog.d/6263.misc Normal file
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@ -0,0 +1 @@
Change cache descriptors to always return deferreds.

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@ -79,7 +79,7 @@ class BulkPushRuleEvaluator(object):
dict of user_id -> push_rules
"""
room_id = event.room_id
rules_for_room = self._get_rules_for_room(room_id)
rules_for_room = yield self._get_rules_for_room(room_id)
rules_by_user = yield rules_for_room.get_rules(event, context)

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@ -720,7 +720,7 @@ class RoomMemberWorkerStore(EventsWorkerStore):
# See bulk_get_push_rules_for_room for how we work around this.
assert state_group is not None
cache = self._get_joined_hosts_cache(room_id)
cache = yield self._get_joined_hosts_cache(room_id)
joined_hosts = yield cache.get_destinations(state_entry)
return joined_hosts

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@ -438,7 +438,7 @@ class CacheDescriptor(_CacheDescriptorBase):
if isinstance(cached_result_d, ObservableDeferred):
observer = cached_result_d.observe()
else:
observer = cached_result_d
observer = defer.succeed(cached_result_d)
except KeyError:
ret = defer.maybeDeferred(
@ -482,9 +482,8 @@ class CacheListDescriptor(_CacheDescriptorBase):
Given a list of keys it looks in the cache to find any hits, then passes
the list of missing keys to the wrapped function.
Once wrapped, the function returns either a Deferred which resolves to
the list of results, or (if all results were cached), just the list of
results.
Once wrapped, the function returns a Deferred which resolves to the list
of results.
"""
def __init__(
@ -618,7 +617,7 @@ class CacheListDescriptor(_CacheDescriptorBase):
)
return make_deferred_yieldable(d)
else:
return results
return defer.succeed(results)
obj.__dict__[self.orig.__name__] = wrapped

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@ -325,9 +325,9 @@ class DescriptorTestCase(unittest.TestCase):
self.assertEqual(len(obj.fn.cache.cache), 3)
r = obj.fn(1, 2)
self.assertEqual(r, ["spam", "eggs"])
self.assertEqual(r.result, ["spam", "eggs"])
r = obj.fn(1, 3)
self.assertEqual(r, ["chips"])
self.assertEqual(r.result, ["chips"])
obj.mock.assert_not_called()
def test_cache_iterable_with_sync_exception(self):