type net/http.onceCloseListener

4 uses

	net/http (current package)
		server.go#L3550: 	l = &onceCloseListener{Listener: l}
		server.go#L4171: type onceCloseListener struct {
		server.go#L4177: func (oc *onceCloseListener) Close() error {
		server.go#L4182: func (oc *onceCloseListener) close() { oc.closeErr = oc.Listener.Close() }