Function qdevice_poll 

pub fn qdevice_poll(
    handle: Handle,
    name: &str,
    cast_vote: bool,
    ring_id: &RingId,
) -> Result<()>

Poll a quorum device This must be done more often than the qdevice timeout (default 10s) while the device is active and the RingId must match the current value returned from the callbacks for it to be accepted.