Function nc::epoll_ctl

pub fn epoll_ctl(
    epfd: i32, 
    op: i32, 
    fd: i32, 
    event: &mut epoll_event_t
) -> Result<(), Errno>

Control interface for an epoll file descriptor.

let epfd = nc::epoll_create1(nc::EPOLL_CLOEXEC);
assert!(epfd.is_ok());
let epfd = epfd.unwrap();
let mut fds: [i32; 2] = [0, 0];
let ret = nc::pipe(&mut fds);
assert!(ret.is_ok());
let mut event = nc::epoll_event_t::default();
event.events = nc::EPOLLIN | nc::EPOLLET;
event.data.fd = fds[0];
let ctl_ret = nc::epoll_ctl(epfd, nc::EPOLL_CTL_ADD, fds[0], &mut event);
assert!(ctl_ret.is_ok());
assert!(nc::close(fds[0]).is_ok());
assert!(nc::close(fds[1]).is_ok());
assert!(nc::close(epfd).is_ok());