host/at.released.weh.host.wasi.preview1/WasiHostFunction/POLL_ONEOFF

POLL_ONEOFF

Concurrently poll for the occurrence of a set of events.

If nsubscriptions is 0, returns errno::inval.

(@interface func (export "poll_oneoff")
  ;;; The events to which to subscribe.
  (param $in (@witx const_pointer $subscription))
  ;;; The events that have occurred.
  (param $out (@witx pointer $event))
  ;;; Both the number of subscriptions and events.
  (param $nsubscriptions $size)
  ;;; The number of events stored.
  (result $error (expected $size (error $errno)))
)