Function nc::epoll_ctl

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

Control interface for an epoll file descriptor.

Example

let epfd = unsafe { nc::epoll_create1(nc::EPOLL_CLOEXEC) };
assert!(epfd.is_ok());
let epfd = epfd.unwrap();
let mut fds: [i32; 2] = [0, 0];
let ret = unsafe { nc::pipe2(&mut fds, 0) };
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 = unsafe { nc::epoll_ctl(epfd, nc::EPOLL_CTL_ADD, fds[0], &mut event) };
assert!(ctl_ret.is_ok());
let ret = unsafe { nc::close(fds[0]) };
assert!(ret.is_ok());
let ret = unsafe { nc::close(fds[1]) };
assert!(ret.is_ok());
let ret = unsafe { nc::close(epfd) };
assert!(ret.is_ok());