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fix: fix the misuse of unbuffered os.Signal channel #494

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fix: fix the misuse of unbuffered os.Signal channel #494

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2 changes: 1 addition & 1 deletion cmd/proxy/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -617,7 +617,7 @@ func startWebServer(
}

func waitForServerShutdown(httpServer *http.Server, closableComponents *data.ClosableComponentsHandler) {
quit := make(chan os.Signal)
quit := make(chan os.Signal, 1)

Copilot AI Jul 23, 2025

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Good fix! Using a buffered channel with capacity 1 prevents potential signal loss. The Go documentation recommends buffered channels for signal.Notify to ensure signals are not dropped if the receiver is not immediately ready.

Suggested change
quit := make(chan os.Signal, 1)
quit := make(chan os.Signal, 1) // Buffered channel with capacity 1 to prevent signal loss

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signal.Notify(quit, os.Interrupt, os.Kill)
<-quit

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