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Remove wait on future in network bridge#1765
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bkchr
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| fn poll(&mut self) -> Poll<Option<Self::Item>, Self::Error> { | ||
| if let Some(ref mut inner) = self.inner { | ||
| return inner | ||
| .poll() |
| return inner | ||
| .poll() | ||
| } | ||
| if let Ok(futures::Async::Ready(mut inner)) = self.outer.poll() { |
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If the oneshot::Receiver is returning Error(Canceled), this will stuck forever.
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How could we handle the error? An error would indicate network has shut down, and the entire system is likely shutting down. We could panic on an Err I guess...
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I don't know what the error indicates. Maybe we should just throw Err(()).
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We can propagate an appropriate error.
| self.inner = Some(inner); | ||
| return poll_result | ||
| } | ||
| Ok(futures::Async::NotReady) |
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Maybe rewrite this whole function as:
loop {
match self.inner {
Some(ref mut inner) => return inner.poll(),
None => match self.outer.poll() {
Ok(Ready(inner)) => self.inner = Some(inner),
Ok(NotReady) => return Ok(NotReady),
Err(e) => handle the error,
}
}
}
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clever, and I'd rather rely on the next call to poll(or actually just do it in the same call to poll without the loop).
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andresilva
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bkchr
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* remove wait on future in network bridge * nit Co-Authored-By: gterzian <2792687+gterzian@users.noreply.github.com> * nit Co-Authored-By: gterzian <2792687+gterzian@users.noreply.github.com> * nit * propagate error * nit once more * nit Co-Authored-By: gterzian <2792687+gterzian@users.noreply.github.com>
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Follow up on #1340 (comment)