()
| 31 | } |
| 32 | |
| 33 | func (w *nodeHeaderWriter) maybeSet() { |
| 34 | if w.set { |
| 35 | return |
| 36 | } |
| 37 | w.set = true |
| 38 | if id := w.resolve(); id != "" { |
| 39 | w.Header().Set(NodeHeaderName, id) |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | func (w *nodeHeaderWriter) Write(b []byte) (int, error) { |
| 44 | w.maybeSet() |