1 EPOLLIN 2 EPOLLPRI 3 EPOLLOUT 4 EPOLLRDNORM 5 EPOLLRDBAND 6 EPOLLWRNORM 7 EPOLLWRBAND 8 EPOLLMSG 9 EPOLLERR 10 EPOLLHUP 11 EPOLLRDHUP 12 EPOLLEXCLUSIVE 13 EPOLLWAKEUP 14 EPOLLONESHOT 15 EPOLLET 16
