1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
// Copyright (c) 2018 Cisco and/or its affiliates.
//
// 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 main
import (
"flag"
"fmt"
"log"
"os"
"strings"
"git.fd.io/govpp.git/adapter"
"git.fd.io/govpp.git/adapter/vppapiclient"
"git.fd.io/govpp.git/core"
)
// ------------------------------------------------------------------
// Example - Stats API
// ------------------------------------------------------------------
// The example stats_api demonstrates how to retrieve stats
// from the VPP using the new stats API.
// ------------------------------------------------------------------
var (
statsSocket = flag.String("socket", vppapiclient.DefaultStatSocket, "VPP stats segment socket")
dumpAll = flag.Bool("all", false, "Dump all stats including ones with zero values")
)
func init() {
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "%s: usage [ls|dump|errors|interfaces|nodes|system] <patterns>...\n", os.Args[0])
flag.PrintDefaults()
os.Exit(1)
}
}
func main() {
flag.Parse()
skipZeros := !*dumpAll
cmd := flag.Arg(0)
switch cmd {
case "", "ls", "dump", "errors", "interfaces", "nodes", "system":
default:
flag.Usage()
}
var patterns []string
if flag.NArg() > 0 {
patterns = flag.Args()[1:]
}
client := vppapiclient.NewStatClient(*statsSocket)
fmt.Printf("Connecting to stats socket: %s\n", *statsSocket)
c, err := core.ConnectStats(client)
if err != nil {
log.Fatalln("Connecting failed:", err)
}
defer c.Disconnect()
switch cmd {
case "system":
stats, err := c.GetSystemStats()
if err != nil {
log.Fatalln("getting system stats failed:", err)
}
fmt.Printf("System stats: %+v\n", stats)
case "nodes":
fmt.Println("Listing node stats..")
stats, err := c.GetNodeStats()
if err != nil {
log.Fatalln("getting node stats failed:", err)
}
for _, iface := range stats.Nodes {
fmt.Printf(" - %+v\n", iface)
}
fmt.Printf("Listed %d node counters\n", len(stats.Nodes))
case "interfaces":
fmt.Println("Listing interface stats..")
stats, err := c.GetInterfaceStats()
if err != nil {
log.Fatalln("getting interface stats failed:", err)
}
for _, iface := range stats.Interfaces {
fmt.Printf(" - %+v\n", iface)
}
fmt.Printf("Listed %d interface counters\n", len(stats.Interfaces))
case "errors":
fmt.Printf("Listing error stats.. %s\n", strings.Join(patterns, " "))
stats, err := c.GetErrorStats(patterns...)
if err != nil {
log.Fatalln("getting error stats failed:", err)
}
n := 0
for _, counter := range stats.Errors {
if counter.Value == 0 && skipZeros {
continue
}
fmt.Printf(" - %v\n", counter)
n++
}
fmt.Printf("Listed %d (%d) error counters\n", n, len(stats.Errors))
case "dump":
dumpStats(client, patterns, skipZeros)
default:
listStats(client, patterns)
}
}
func listStats(client adapter.StatsAPI, patterns []string) {
fmt.Printf("Listing stats.. %s\n", strings.Join(patterns, " "))
list, err := client.ListStats(patterns...)
if err != nil {
log.Fatalln("listing stats failed:", err)
}
for _, stat := range list {
fmt.Printf(" - %v\n", stat)
}
fmt.Printf("Listed %d stats\n", len(list))
}
func dumpStats(client adapter.StatsAPI, patterns []string, skipZeros bool) {
fmt.Printf("Dumping stats.. %s\n", strings.Join(patterns, " "))
stats, err := client.DumpStats(patterns...)
if err != nil {
log.Fatalln("dumping stats failed:", err)
}
n := 0
for _, stat := range stats {
if isZero(stat.Data) && skipZeros {
continue
}
fmt.Printf(" - %-25s %25v %+v\n", stat.Name, stat.Type, stat.Data)
n++
}
fmt.Printf("Dumped %d (%d) stats\n", n, len(stats))
}
func isZero(stat adapter.Stat) bool {
switch s := stat.(type) {
case adapter.ScalarStat:
return s == 0
case adapter.ErrorStat:
return s == 0
case adapter.SimpleCounterStat:
for _, ss := range s {
for _, sss := range ss {
if sss != 0 {
return false
}
}
}
case adapter.CombinedCounterStat:
for _, ss := range s {
for _, sss := range ss {
if sss.Bytes != 0 || sss.Packets != 0 {
return false
}
}
}
}
return true
}
|
