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Add a five minute cache to get_destination_retry_timings

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Hopefully helps with #3931
This commit is contained in:
Erik Johnston 2018-09-21 14:55:47 +01:00
parent 79eded1ae4
commit fdd1a62e8d
2 changed files with 35 additions and 1 deletions
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13
synapse/util/caches/expiringcache.py
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@ -24,6 +24,9 @@ from synapse.util.caches import register_cache
logger = logging.getLogger(__name__)
SENTINEL = object()
class ExpiringCache(object):
def __init__(self, cache_name, clock, max_len=0, expiry_ms=0,
reset_expiry_on_get=False, iterable=False):
@ -102,6 +105,16 @@ class ExpiringCache(object):
return entry.value
def pop(self, key, default=None):
value = self._cache.pop(key, SENTINEL)
if value is SENTINEL:
return default
if self.iterable:
self._size_estimate -= len(value.value)
return value
def __contains__(self, key):
return key in self._cache