Method poll_event

src/uinput.rs:610–633

A lower-level function for directly polling this stream.

(&mut self, cx: &mut Context<'_>)

        /// A lower-level function for directly polling this stream.
        pub fn poll_event(&mut self, cx: &mut Context<'_>) -> Poll<io::Result<InputEvent>> {
            'outer: loop {
                if let Some(&ev) = self.device.get_ref().event_buf.get(self.index) {
                    self.index += 1;
                    return Poll::Ready(Ok(InputEvent::from(ev)));
                }

                self.device.get_mut().event_buf.clear();
                self.index = 0;

                loop {
                    let mut guard = ready!(self.device.poll_read_ready_mut(cx))?;

                    let res = guard.try_io(|device| device.get_mut().fill_events());
                    match res {
                        Ok(res) => {
                            let _ = res?;
                            continue 'outer;
                        }
                        Err(_would_block) => continue,
                    }
                }
            }
        }
    }

    #[cfg(feature = "stream-trait")]