参考:
(源码解读poll/select内核机制)[http://gityuan.com/2019/01/05/linux-poll-select/]
(源码解读epoll内核机制)[http://gityuan.com/2019/01/06/linux-epoll/]
(源码解读poll/select内核机制)[http://gityuan.com/2019/01/05/linux-poll-select/]
(源码解读epoll内核机制)[http://gityuan.com/2019/01/06/linux-epoll/]