(ch chan<- prometheus.Metric)
| 55 | } |
| 56 | |
| 57 | func (c *vmStatCollector) Update(ch chan<- prometheus.Metric) error { |
| 58 | file, err := os.Open(procFilePath("vmstat")) |
| 59 | if err != nil { |
| 60 | return err |
| 61 | } |
| 62 | defer file.Close() |
| 63 | |
| 64 | scanner := bufio.NewScanner(file) |
| 65 | for scanner.Scan() { |
| 66 | parts := strings.Fields(scanner.Text()) |
| 67 | value, err := strconv.ParseFloat(parts[1], 64) |
| 68 | if err != nil { |
| 69 | return err |
| 70 | } |
| 71 | if !c.fieldPattern.MatchString(parts[0]) { |
| 72 | continue |
| 73 | } |
| 74 | |
| 75 | ch <- prometheus.MustNewConstMetric( |
| 76 | prometheus.NewDesc( |
| 77 | prometheus.BuildFQName(namespace, vmStatSubsystem, parts[0]), |
| 78 | fmt.Sprintf("/proc/vmstat information field %s.", parts[0]), |
| 79 | nil, nil), |
| 80 | prometheus.UntypedValue, |
| 81 | value, |
| 82 | ) |
| 83 | } |
| 84 | return scanner.Err() |
| 85 | } |
nothing calls this directly
no test coverage detected