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rollback #1884

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This commit is contained in:
jxxghp 2024-04-13 18:38:29 +08:00
parent 45b044cd6b
commit 492533dcdb
1 changed files with 3 additions and 5 deletions
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8
app/utils/singleton.py
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@ -8,14 +8,12 @@ class Singleton(abc.ABCMeta, type):
""" """
_instances: dict = {} _instances: dict = {}
_lock = threading.Lock()
def __call__(cls, *args, **kwargs): def __call__(cls, *args, **kwargs):
key = (cls, args, frozenset(kwargs.items())) key = (cls, args, frozenset(kwargs.items()))
with cls._lock: if key not in cls._instances:
if key not in cls._instances: cls._instances[key] = super().__call__(*args, **kwargs)
cls._instances[key] = super().__call__(*args, **kwargs) return cls._instances[key]
return cls._instances[key]
class AbstractSingleton(abc.ABC, metaclass=Singleton): class AbstractSingleton(abc.ABC, metaclass=Singleton):