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Condition is designed to check the current value when a consumer wakes up. That's fine when state only moves forward, but it falls apart when transitions are fast. When the setter changes state, it calls notify_all(), which schedules wakeups for every waiting consumer. But in a single-threaded event loop, no consumer actually runs until the current coroutine yields. If the value changes again before that happens, consumers wake up and re-evaluate their predicate against the current value, not the value that triggered the notification. The predicate fails and the consumer goes back to sleep, potentially forever.
。关于这个话题，体育直播提供了深入分析
The 'Wolverine' of the tech worldAs far as robustness goes, these cards are pretty much the "Wolverine" of the tech world.
笑いと向き合い続けた“昭和の爆笑王” 初代林家三平に迫る