Source code for pyqldb.util.atomic_integer

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# Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with
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from threading import Lock


[docs]class AtomicInteger: """ An integer value that may be updated atomically. """ def __init__(self, value=0): self._value = value self._lock = Lock()
[docs] def increment(self): """ Atomically increments the current value by one. :rtype: int :return: The updated integer value. """ with self._lock: self._value += 1 return self._value
[docs] def decrement(self): """ Atomically decrements the current value by one. :rtype: int :return: The updated integer value. """ with self._lock: self._value -= 1 return self._value
@property def value(self): """ Returns the current value. :rtype: int :return: The integer value. """ with self._lock: return self._value