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fix(coderd/database/pubsub): prevent listeners read outside mutex lock#15303

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Merged
spikecurtis merged 1 commit intomainfrommafredri/fix-data-race-pubsuv
Nov 1, 2024
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3 changes: 2 additions & 1 deletioncoderd/database/pubsub/pubsub.go
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Original file line numberDiff line numberDiff line change
Expand Up@@ -278,10 +278,11 @@ func (p *PGPubsub) subscribeQueue(event string, newQ *msgQueue) (cancel func(),
if len(listeners) == 0 {
delete(p.queues, event)
}
listenerCount := len(listeners)
p.qMu.Unlock()
// as above, we must not hold the lock while calling into pgListener

iflen(listeners) == 0 {
iflistenerCount == 0 {
uErr := p.pgListener.Unlisten(event)
p.closeMu.Lock()
defer p.closeMu.Unlock()
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