peterlu14
47 lines
1.0 KiB
Python
47 lines
1.0 KiB
Python
from functools import wraps
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from threading import RLock
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from typing import Optional
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__all__ = [
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'synchronized', 'Synchronized'
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]
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def synchronized(f):
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if f.__doc__ is not None:
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f.__doc__ = "**(synchronized)** " + f.__doc__
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else:
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f.__doc__ = "**(synchronized)**"
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@wraps(f)
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def _synchronized(self, *argv, **karg):
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if hasattr(self, '__enter__'):
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with self:
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return f(self, *argv, **karg)
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else:
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return f(self, *argv, **karg)
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return _synchronized
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class Synchronized:
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__slots__ = ('__lock',)
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def __init__(self):
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self.__lock = RLock()
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def __enter__(self):
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self.__lock.acquire()
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def __exit__(self, exc_type, exc_val, exc_tb):
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self.__lock.release()
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def lock_acquire(self, timeout: Optional[int] = None) -> bool:
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if timeout is None:
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return self.__lock.acquire(blocking=False)
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else:
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return self.__lock.acquire(timeout=timeout)
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def lock_release(self):
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self.__lock.release()
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