var unique.cleanupFuncsMu

5 uses

	unique (current package)
		handle.go#L111: 	cleanupFuncsMu sync.Mutex
		handle.go#L130: 		cleanupFuncsMu.Lock()
		handle.go#L141: 		cleanupFuncsMu.Unlock()
		handle.go#L156: 		cleanupFuncsMu.Lock()
		handle.go#L158: 		cleanupFuncsMu.Unlock()