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network: only make progress when card reports new stuff happened #1942

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network: only make progress when card reports new stuff happened #1942

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7 changes: 4 additions & 3 deletions src/executor/network.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -194,9 +194,10 @@ async fn network_run() {
if let Some(mut guard) = NIC.try_lock() {
match &mut *guard {
NetworkState::Initialized(nic) => {
nic.poll_common(now());
// FIXME: only wake when progress can be made
cx.waker().wake_by_ref();
let r = nic.poll_common(now());
if r == PollResult::SocketStateChanged {
cx.waker().wake_by_ref();
}
Poll::Pending
}
_ => Poll::Ready(()),
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