type net/http.onceCloseListener

4 uses

	net/http (current package)
		server.go#L3410: 	l = &onceCloseListener{Listener: l}
		server.go#L3929: type onceCloseListener struct {
		server.go#L3935: func (oc *onceCloseListener) Close() error {
		server.go#L3940: func (oc *onceCloseListener) close() { oc.closeErr = oc.Listener.Close() }