Parents of gravely ill child refused respite care
For implementers, the locking model adds a fair amount of non-trivial internal bookkeeping. Every operation must check lock state, readers must be tracked, and the interplay between locks, cancellation, and error states creates a matrix of edge cases that must all be handled correctly.
，推荐阅读Line官方版本下载获取更多信息
self.config = config，更多细节参见51吃瓜
Sometimes a meme exists purely because it sparks joy.
# What is the lesson here?