References: runtime.disableSigChan

var runtime.disableSigChan

4 uses

	runtime (current package)
		signal_unix.go#L91: 	disableSigChan  chan uint32
		signal_unix.go#L217: 		disableSigChan <- sig
		signal_unix.go#L870: 	disableSigChan = make(chan uint32)
		signal_unix.go#L894: 			case sig := <-disableSigChan:

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