| // Copyright 2018 The Prometheus Authors |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package nfs |
| |
| import ( |
| "bufio" |
| "fmt" |
| "io" |
| "strings" |
| |
| "github.com/prometheus/procfs/internal/util" |
| ) |
| |
| // ParseClientRPCStats returns stats read from /proc/net/rpc/nfs |
| func ParseClientRPCStats(r io.Reader) (*ClientRPCStats, error) { |
| stats := &ClientRPCStats{} |
| |
| scanner := bufio.NewScanner(r) |
| for scanner.Scan() { |
| line := scanner.Text() |
| parts := strings.Fields(scanner.Text()) |
| // require at least <key> <value> |
| if len(parts) < 2 { |
| return nil, fmt.Errorf("invalid NFS metric line %q", line) |
| } |
| |
| values, err := util.ParseUint64s(parts[1:]) |
| if err != nil { |
| return nil, fmt.Errorf("error parsing NFS metric line: %s", err) |
| } |
| |
| switch metricLine := parts[0]; metricLine { |
| case "net": |
| stats.Network, err = parseNetwork(values) |
| case "rpc": |
| stats.ClientRPC, err = parseClientRPC(values) |
| case "proc2": |
| stats.V2Stats, err = parseV2Stats(values) |
| case "proc3": |
| stats.V3Stats, err = parseV3Stats(values) |
| case "proc4": |
| stats.ClientV4Stats, err = parseClientV4Stats(values) |
| default: |
| return nil, fmt.Errorf("unknown NFS metric line %q", metricLine) |
| } |
| if err != nil { |
| return nil, fmt.Errorf("errors parsing NFS metric line: %s", err) |
| } |
| } |
| |
| if err := scanner.Err(); err != nil { |
| return nil, fmt.Errorf("error scanning NFS file: %s", err) |
| } |
| |
| return stats, nil |
| } |