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window = 1280 events. At ~50 directory changes per day, this spans roughly one month.
，这一点在heLLoword翻译官方下载中也有详细论述
No polling, no wasted cycles. The handler blocks until the event fires. But Event is boolean: it's either set or unset. Our connection has five states, and drain_requests only cares about one of them. What happens when another handler needs to wait for connected? You need a second event. A third handler waiting for "not disconnected"? A third event with inverted logic. The setter has to know about all of them:
Россиян предупредили о возможном подорожании товаров из-за конфликта на Ближнем Востоке08:42，详情可参考旺商聊官方下载