摘要:
epoll首先看个结构体typedef union epoll_data{ void *ptr; int fd; uint32_t u32; uint64_t u64; } epoll_data_t; struct epoll_event { uint32_t events; /* Epoll events */ epoll_data_t data; /* User data variable */ }struct epoll_event的成员events是个bit set,有几种类型:EPOLLIN:关联的文件是用来读的EPOLLOUT:关联的... 阅读全文