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fix: avoid infinite loop in agent derp-map #8848

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Merged
merged 3 commits into from
Aug 2, 2023
Merged

fix: avoid infinite loop in agent derp-map #8848

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8ad3b93
fix: avoid infinite loop in agent derp-map
deansheather Aug 2, 2023
c5e8083
fixup! fix: avoid infinite loop in agent derp-map
deansheather Aug 2, 2023
96ad4d3
fixup! fix: avoid infinite loop in agent derp-map
deansheather Aug 2, 2023
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fixup! fix: avoid infinite loop in agent derp-map
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@deansheather
deansheather committed Aug 2, 2023
commit 96ad4d3315266eed1621e63e5a44298c2218bccc
15 changes: 11 additions & 4 deletions codersdk/agentsdk/agentsdk.go
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Original file line number Diff line number Diff line change
Expand Up @@ -212,15 +212,22 @@ func (c *Client) DERPMapUpdates(ctx context.Context) (<-chan DERPMapUpdate, io.C
update.Err = err
update.DERPMap = nil
}
err = c.rewriteDerpMap(update.DERPMap)
if err != nil {
update.Err = err
update.DERPMap = nil
if update.DERPMap != nil {
err = c.rewriteDerpMap(update.DERPMap)
if err != nil {
update.Err = err
update.DERPMap = nil
}
}

select {
case updates <- update:
case <-ctx.Done():
// Unblock the caller if they're waiting for an update.
select {
case updates <- DERPMapUpdate{Err: ctx.Err()}:
default:
}
return
}
if update.Err != nil {
Expand Down