Instead of waking consumers and asking "is the current state what you want?", buffer every transition into a per-consumer queue. Each consumer drains its own queue and checks each transition individually. The consumer never misses a state.
Topologically, Bobs world is a doughnut, and the road is a loop around the hole of the doughnut. If we were to stretch it (don’t worry, this wont harm Bob, he does not even notice!), we would get the following picture:
。关于这个话题，PDF资料提供了深入分析
Here's a full-blown extractor that looks for such patterns, which I'll annotate，更多细节参见体育直播
Users are ditching ChatGPT for Claude — here’s how to make the switch，更多细节参见PDF资料