def __exit__(self, exc_type, exc_val, exc_tb):
if self._algorithm is None:
return
try:
del self._algorithm._buffers[_thread.get_ident()]
except KeyError:
pass
def __getitem__(self, key):
# Try retrieve value from `prime_buffer`
try:
buffer = self._buffers.get(_thread.get_ident())
if buffer is not None:
return buffer[key]
except KeyError:
pass
# Try retrieve value from `cache`
try:
value = self.cache[key]
# Ensure node for `key` exists
self.create(key)
return value
except KeyError:
pass
# Try load `key` from `archive`
return self.load(key)
def __enter__(self):
if self._algorithm is None:
return
self._algorithm._buffers[_thread.get_ident()] = self._buffer
