Method wait

Retrieves ready events, and delivers them to the caller-supplied event buffer and returns the number of ready events if the call was successful. ## Arguments `events`: Used to return information from the ready list about file descriptors in the interest list that have some events available. `max_events`: Maximum number of events. `timeout`: specifies the minimum number of milliseconds that epo

(
        &self,
        ret_events: &mut [EPollEvent],
        max_events: usize,
        timeout: usize,
    )