(lastMod time.Time)
| 42 | ) |
| 43 | |
| 44 | func readFileIfModified(lastMod time.Time) ([]byte, time.Time, error) { |
| 45 | fi, err := os.Stat(filename) |
| 46 | if err != nil { |
| 47 | return nil, lastMod, err |
| 48 | } |
| 49 | if !fi.ModTime().After(lastMod) { |
| 50 | return nil, lastMod, nil |
| 51 | } |
| 52 | p, err := ioutil.ReadFile(filename) |
| 53 | if err != nil { |
| 54 | return nil, fi.ModTime(), err |
| 55 | } |
| 56 | return p, fi.ModTime(), nil |
| 57 | } |
| 58 | |
| 59 | func reader(ws *websocket.Conn) { |
| 60 | defer ws.Close() |