Method notify

tornado/locks.py:141–151

Wake ``n`` waiters.

(self, n: int = 1)

        return waiter

    def notify(self, n: int = 1) -> None:
        """Wake ``n`` waiters."""
        waiters = []  # Waiters we plan to run right now.
        while n and self._waiters:
            waiter = self._waiters.popleft()
            if not waiter.done():  # Might have timed out.
                n -= 1
                waiters.append(waiter)

        for waiter in waiters:
            future_set_result_unless_cancelled(waiter, True)

    def notify_all(self) -> None:
        """Wake all waiters."""