nio & epoll

 https://zh.wikipedia.org/wiki/Select_(Unix)

 

epoll 由 3 个系统调用组成：epoll_create、epoll_ctl、epoll_wait 
具体见：  https://www.cnblogs.com/anker/p/3263780.html

 

数据接收过程：

https://www.cnblogs.com/fatmanhappycode/p/12362423.html

 

 

https://my.oschina.net/editorial-story/blog/3052308
https://www.bilibili.com/video/av61313147/?p=6