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.
Seamless connectivity: MacBook Air features two Thunderbolt 4 ports for connecting accessories with support for up to two external displays — ideal for professionals and students who need to expand their workspace. MagSafe enables dedicated charging and peace of mind when users are plugged in.
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