def build_synchronize_decorator():
  """Returns a decorator which prevents concurrent calls to functions.

  Usage:
    synchronized = build_synchronize_decorator()

    @synchronized
    def read_value():
      ...

    @synchronized
    def write_value(x):
      ...

  Returns:
    make_threadsafe (fct): The decorator which lock all functions to which it
      is applied under a same lock
  """
  lock = threading.Lock()

  def lock_decorator(fn):

    @functools.wraps(fn)
    def lock_decorated(*args, **kwargs):
      with lock:
        return fn(*args, **kwargs)

    return lock_decorated

  return lock_decorator
def build_synchronize_decorator ( ) : lock = threading . Lock ( ) def lock_decorator ( fn ) : @ functools . wraps ( fn ) def lock_decorated ( * args , ** kwargs ) : with lock : return fn ( * args , ** kwargs ) return lock_decorated return lock_decorator
Returns a decorator which prevents concurrent calls to functions.

  Usage:
    synchronized = build_synchronize_decorator()

    @synchronized
    def read_value():
      ...

    @synchronized
    def write_value(x):
      ...

  Returns:
    make_threadsafe (fct): The decorator which lock all functions to which it
      is applied under a same lock