现在要设计一个MemPool(Pool是一个循环链表并平分为N个Chunk,每个Chunk都有一个读写锁),只有一个写线程负责往chunk里面写数据,N个读线程从chunk中读出数据-Now to design a MemPool (Pool is a circular linked list and the level is divided into N a Chunk, each Chunk has a read-write lock), and only one thread is wri