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Scheduler队列设计疑问 about just-react HOT 1 OPEN

betasu avatar betasu commented on July 30, 2024
Scheduler队列设计疑问

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lizuncong avatar lizuncong commented on July 30, 2024

目前React关于Scheduler设计存在两个队列：保存未就绪任务timerQueue和保存已就绪任务taskQueue，每次调度时会判断未就绪任务是否已就绪，是加入到taskQueue。但是从过期时间的角度来看，貌似这种设计有点冗余，如果把延迟的任务也转换为过期时间，然后放在统一的任务队列（假设是taskQueue），统一走最小堆的维护和取值策略，那是不是也能满足需求，并且逻辑上也更简单点

是需要两个队列的，假如没有调度普通的任务(存放在taskQueue中的任务)，只调度了延迟任务，这时候是需要为延迟任务启动一个定时器的，而普通任务不需要，因此不能简单的将延迟任务转换为过期时间添加到普通任务队列（taskQueue）中的

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