diff options
| -rw-r--r-- | synapse/util/caches/descriptors.py | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/synapse/util/caches/descriptors.py b/synapse/util/caches/descriptors.py index 5be4097279..799fd2a9c6 100644 --- a/synapse/util/caches/descriptors.py +++ b/synapse/util/caches/descriptors.py @@ -32,7 +32,7 @@ import os import functools import inspect import threading -import itertools + logger = logging.getLogger(__name__) @@ -357,17 +357,16 @@ class CacheListDescriptor(object): cached_defers[arg] = res if cached_defers: + def update_results_dict(res): + results.update(res) + return results + return preserve_context_over_deferred(defer.gatherResults( cached_defers.values(), consumeErrors=True, - ).addCallback( - lambda res: { - k: v - for k, v in itertools.chain(results.items(), res) - } - )).addErrback( + ).addCallback(update_results_dict).addErrback( unwrapFirstError - ) + )) else: return results |