()
| 13 | ) |
| 14 | |
| 15 | func (c *meminfoCollector) getMemInfo() (map[string]float64, error) { |
| 16 | file, err := os.Open(procFilePath("meminfo")) |
| 17 | if err != nil { |
| 18 | return nil, err |
| 19 | } |
| 20 | defer file.Close() |
| 21 | |
| 22 | info, err := parseMemInfo(file) |
| 23 | if _, ok := info["MemAvailable_bytes"]; !ok { |
| 24 | if err == nil { |
| 25 | free, ok := info["MemFree_bytes"] |
| 26 | if ok { |
| 27 | buf, ok := info["Buffers_bytes"] |
| 28 | if ok { |
| 29 | cache, ok := info["Cached_bytes"] |
| 30 | if ok { |
| 31 | info["MemAvailable_bytes"] = free + buf + cache |
| 32 | } |
| 33 | } |
| 34 | } |
| 35 | } |
| 36 | } |
| 37 | return info, err |
| 38 | } |
| 39 | |
| 40 | func parseMemInfo(r io.Reader) (map[string]float64, error) { |
| 41 | var ( |
no test coverage detected