Package io.netty5.channel.epoll

Class EpollEventArray

  • @UnstableApi
public final class EpollEventArray
extends Object
    This is an internal datastructure which can be directly passed to epoll_wait to reduce the overhead. 
    
 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
 };
    We use fd if the epoll_data union to store the actual file descriptor of an AbstractEpollChannel and so be able to map it later.