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quic virtual listener: don't panic when quic-go's accept call errors #2276

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merged 1 commit into from
May 9, 2023

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MarcoPolo
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closes #2259

This doesn't add any extra logging. That's a bit bigger of a change so I'll do that in another PR.

@@ -68,6 +69,11 @@ func (r *acceptLoopRunner) RmAcceptForVersion(v quic.VersionNumber) {
r.muxerMu.Lock()
defer r.muxerMu.Unlock()

if r.muxerClosed {
// Already closed, all versions are removed
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Is this an error-specific closing that basically indicates a failed start? If so maybe document/name it like that.

If so, does this mean that Accept should be modified as well? Want to make sure we don't end up in a position where we can keep calling accept but not RmAccept.

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We see the situation that quic-go's Accept sometimes errors on Windows machines. It might or might not be related to quic-go/quic-go#1737. I don't have a Windows machine, so I can't really debug this. Also, I care more about other OSes ;)

There should probably be some logging, but I'm fine adding this in a later PR.

@marten-seemann marten-seemann changed the title quic virtual listener: Don't remove muxer if closed quic virtual listener: don't panic when quic-go's accept call errors May 9, 2023
@marten-seemann marten-seemann merged commit 3e87ca0 into master May 9, 2023
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quic: panic on error in listener Accept
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