khenaidoo | ffe076b | 2019-01-15 16:08:08 -0500 | [diff] [blame^] | 1 | // Copyright 2018 The Prometheus Authors |
| 2 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 3 | // you may not use this file except in compliance with the License. |
| 4 | // You may obtain a copy of the License at |
| 5 | // |
| 6 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 7 | // |
| 8 | // Unless required by applicable law or agreed to in writing, software |
| 9 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 10 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 11 | // See the License for the specific language governing permissions and |
| 12 | // limitations under the License. |
| 13 | |
| 14 | package nfs |
| 15 | |
| 16 | import ( |
| 17 | "bufio" |
| 18 | "fmt" |
| 19 | "io" |
| 20 | "strings" |
| 21 | |
| 22 | "github.com/prometheus/procfs/internal/util" |
| 23 | ) |
| 24 | |
| 25 | // ParseClientRPCStats returns stats read from /proc/net/rpc/nfs |
| 26 | func ParseClientRPCStats(r io.Reader) (*ClientRPCStats, error) { |
| 27 | stats := &ClientRPCStats{} |
| 28 | |
| 29 | scanner := bufio.NewScanner(r) |
| 30 | for scanner.Scan() { |
| 31 | line := scanner.Text() |
| 32 | parts := strings.Fields(scanner.Text()) |
| 33 | // require at least <key> <value> |
| 34 | if len(parts) < 2 { |
| 35 | return nil, fmt.Errorf("invalid NFS metric line %q", line) |
| 36 | } |
| 37 | |
| 38 | values, err := util.ParseUint64s(parts[1:]) |
| 39 | if err != nil { |
| 40 | return nil, fmt.Errorf("error parsing NFS metric line: %s", err) |
| 41 | } |
| 42 | |
| 43 | switch metricLine := parts[0]; metricLine { |
| 44 | case "net": |
| 45 | stats.Network, err = parseNetwork(values) |
| 46 | case "rpc": |
| 47 | stats.ClientRPC, err = parseClientRPC(values) |
| 48 | case "proc2": |
| 49 | stats.V2Stats, err = parseV2Stats(values) |
| 50 | case "proc3": |
| 51 | stats.V3Stats, err = parseV3Stats(values) |
| 52 | case "proc4": |
| 53 | stats.ClientV4Stats, err = parseClientV4Stats(values) |
| 54 | default: |
| 55 | return nil, fmt.Errorf("unknown NFS metric line %q", metricLine) |
| 56 | } |
| 57 | if err != nil { |
| 58 | return nil, fmt.Errorf("errors parsing NFS metric line: %s", err) |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | if err := scanner.Err(); err != nil { |
| 63 | return nil, fmt.Errorf("error scanning NFS file: %s", err) |
| 64 | } |
| 65 | |
| 66 | return stats, nil |
| 67 | } |