mirror of
https://github.com/carrotquest/django-clickhouse.git
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36 lines
912 B
Python
36 lines
912 B
Python
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"""
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Contains additional components for redis-py to use in RedisStorage
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"""
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from .exceptions import RedisLockTimeoutError
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class RedisLock:
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"""
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Fixes issue of https://github.com/andymccurdy/redis-py/issues/621
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"""
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def __init__(self, redis_client, *args, **kwargs):
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self.lock = redis_client.lock(*args, **kwargs)
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def __enter__(self):
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if self.lock.acquire():
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return self
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else:
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raise RedisLockTimeoutError()
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def __exit__(self, type, value, tb):
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self.lock.release()
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def acquire(self):
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self.lock.acquire()
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def release(self):
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self.lock.release()
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def hard_release(self) -> bool:
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"""
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Drops the lock, not looking if it is acquired by anyone.
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:return: Boolean - if lock has been acquired before releasing or not
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"""
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return bool(self.lock.redis.delete(self.lock.name))
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