Function poll_oneoff

pub unsafe fn poll_oneoff(
    in_: *const Subscription,
    out: *mut Event,
    nsubscriptions: Size,
) -> Result<Size, Errno>

Concurrently poll for the occurrence of a set of events.

Parameters

• in_ - The events to which to subscribe.
• out - The events that have occurred.
• nsubscriptions - Both the number of subscriptions and events.

Return

The number of events stored.