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def _resetCache(self):
"""Creates a new cache, discarding the old one.
See the docstring for the resetCaches() function.
"""
self._reset_counter = global_reset_counter
self._invalidated.clear()
cache_size = self._cache.cache_size
self._cache = cache = PickleCache(self, cache_size)
cache, measured in objects.
- `cache_deactivate_after`: deprecated, ignored
- `mvcc`: boolean indicating whether MVCC is enabled
- `txn_mgr`: transaction manager to use. None means
used the default transaction manager.
- `synch`: boolean indicating whether Connection should
register for afterCompletion() calls.
"""
self._log = logging.getLogger("ZODB.Connection")
self._storage = None
self._debug_info = ()
self._opened = None # time.time() when DB.open() opened us
self._version = version
self._cache = cache = PickleCache(self, cache_size)
if version:
# Caches for versions end up empty if the version
# is not used for a while. Non-version caches
# keep their content indefinitely.
# XXX Why do we want version caches to behave this way?
self._cache.cache_drain_resistance = 100
self._committed = []
self._added = {}
self._added_during_commit = None
self._reset_counter = global_reset_counter
self._load_count = 0 # Number of objects unghosted
self._store_count = 0 # Number of objects stored
# List of oids of modified objects (to be invalidated on an abort).