bear_with_code

Listing 9.6: the local_work_queue is always nullptr

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In the function worker_thread(), "local_work_queue" call reset() and then it's not NULL. However, in the function submit(), this variable is always nullptr, so the tasks are pushed into global queue....

**“往线程池添加任务会增加任务队列的竞争，lock-free 队列可以避免这点但存在乒乓缓存的问题。为此需要把任务队列拆分为线程独立的本地队列和全局队列，当线程队列无任务时就去全局队列取任务”** 在这一小节中，submit函数中的local_queue永远是nullptr，原因如下： local_queue指针在worker_thread中赋值，woker_thread运行在子线程，而submit函数是在main线程中调用的，二者不是在同一线程，所以二者的local_queue根本不是同一个。 所以这段代码无法达到想要的目的。

Why record episode reward in this way? This makes the reward curve look nice but in fact it is not. Why not just record the value of `ep_r`? ``` if...

Deserialize failed when the amount of key is larger

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I tested the serialize and deserialize example with more key-values (no boost version), but it deserialize failed. `const tsl::htrie_map map = {{"one", 1}, {"two", 2}, {"three", 3}, {"four", 4}};` ```...