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Prefill stream change caches

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This commit is contained in:
Erik Johnston 2016-01-29 14:37:59 +00:00
parent ebc5f00efe
commit 18579534ea
4 changed files with 52 additions and 19 deletions
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5
synapse/util/caches/stream_change_cache.py
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@ -32,7 +32,7 @@ class StreamChangeCache(object):
entities that may have changed since that position. If position key is too
old then the cache will simply return all given entities.
"""
def __init__(self, name, current_stream_pos, max_size=10000):
def __init__(self, name, current_stream_pos, max_size=10000, prefilled_cache={}):
self._max_size = max_size
self._entity_to_key = {}
self._cache = sorteddict()
@ -40,6 +40,9 @@ class StreamChangeCache(object):
self.name = name
caches_by_name[self.name] = self._cache
for entity, stream_pos in prefilled_cache.items():
self.entity_has_changed(entity, stream_pos)
def has_entity_changed(self, entity, stream_pos):
"""Returns True if the entity may have been updated since stream_pos
"""