runtime/trace.FlightRecorder.writing (field)

3 uses

	runtime/trace (current package)
		flightrecorder.go#L40: 	writing sync.Mutex // protects concurrent calls to WriteTo
		flightrecorder.go#L115: 	if !fr.writing.TryLock() {
		flightrecorder.go#L120: 	defer fr.writing.Unlock()