Constant epoll::EPOLLWAKEUP

pub const EPOLLWAKEUP: Events = Events{bits: libc::EPOLLWAKEUP as u32,}

If EPOLLONESHOT and EPOLLET are clear and the process has the CAP_BLOCK_SUSPEND capability, ensure that the system does not enter "suspend" or "hibernate" while this event is pending or being processed.

The event is considered as being "processed" from the time when it is returned by a call to wait until the next call to wait on the same EpollInstance descriptor, the closure of that file descriptor, the removal of the event file descriptor with EPOLL_CTL_DEL, or the clearing of EPOLLWAKEUP for the event file descriptor with EPOLL_CTL_MOD.