Function nc::io_getevents

pub fn io_getevents(
    ctx_id: aio_context_t, 
    min_nr: isize, 
    nr: isize, 
    events: &mut io_event_t, 
    timeout: &mut timespec_t
) -> Result<i32, Errno>

Attempts to read at least min_nr events and up to nr events from the completion queue for the aio_context specified by ctx_id. If it succeeds, the number of read events is returned. May fail with -EINVAL if ctx_id is invalid, if min_nr is out of range, if nr is out of range, if timeout is out of range. May fail with -EFAULT if any of the memory specified is invalid. May return 0 or < min_nr if the timeout specified by timeout has elapsed before sufficient events are available, where timeout == NULL specifies an infinite timeout. Note that the timeout pointed to by timeout is relative. Will fail with -ENOSYS if not implemented.