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This commit is contained in:
Erik Johnston 2017-02-02 14:47:15 +00:00
parent 9efcc3f3be
commit 6b61060b51
1 changed files with 4 additions and 1 deletions
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synapse/util/caches/descriptors.py
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@ -479,7 +479,10 @@ class CacheListDescriptor(object):
class _CacheContext(namedtuple("_CacheContext", ("cache", "key"))): class _CacheContext(namedtuple("_CacheContext", ("cache", "key"))):
# We rely on _CacheContext implementing __eq__ and __hash__ sensibly, # We rely on _CacheContext implementing __eq__ and __hash__ sensibly,
# which namedtuple does for us. # which namedtuple does for us (i.e. two _CacheContext are the same if
# their caches and keys match). This is important in particular to
# dedupe when we add callbacks to lru cache nodes, otherwise the number
# of callbacks would grow.
def invalidate(self): def invalidate(self):
self.cache.invalidate(self.key) self.cache.invalidate(self.key)