Source file src/net/rpc/debug.go
1
2
3
4
5 package rpc
6
7
11
12 import (
13 "fmt"
14 "html/template"
15 "net/http"
16 "sort"
17 )
18
19 const debugText = `<html>
20 <body>
21 <title>Services</title>
22 {{range .}}
23 <hr>
24 Service {{.Name}}
25 <hr>
26 <table>
27 <th align=center>Method</th><th align=center>Calls</th>
28 {{range .Method}}
29 <tr>
30 <td align=left font=fixed>{{.Name}}({{.Type.ArgType}}, {{.Type.ReplyType}}) error</td>
31 <td align=center>{{.Type.NumCalls}}</td>
32 </tr>
33 {{end}}
34 </table>
35 {{end}}
36 </body>
37 </html>`
38
39 var debug = template.Must(template.New("RPC debug").Parse(debugText))
40
41
42 var debugLog = false
43
44 type debugMethod struct {
45 Type *methodType
46 Name string
47 }
48
49 type methodArray []debugMethod
50
51 type debugService struct {
52 Service *service
53 Name string
54 Method methodArray
55 }
56
57 type serviceArray []debugService
58
59 func (s serviceArray) Len() int { return len(s) }
60 func (s serviceArray) Less(i, j int) bool { return s[i].Name < s[j].Name }
61 func (s serviceArray) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
62
63 func (m methodArray) Len() int { return len(m) }
64 func (m methodArray) Less(i, j int) bool { return m[i].Name < m[j].Name }
65 func (m methodArray) Swap(i, j int) { m[i], m[j] = m[j], m[i] }
66
67 type debugHTTP struct {
68 *Server
69 }
70
71
72 func (server debugHTTP) ServeHTTP(w http.ResponseWriter, req *http.Request) {
73
74 var services serviceArray
75 server.serviceMap.Range(func(snamei, svci interface{}) bool {
76 svc := svci.(*service)
77 ds := debugService{svc, snamei.(string), make(methodArray, 0, len(svc.method))}
78 for mname, method := range svc.method {
79 ds.Method = append(ds.Method, debugMethod{method, mname})
80 }
81 sort.Sort(ds.Method)
82 services = append(services, ds)
83 return true
84 })
85 sort.Sort(services)
86 err := debug.Execute(w, services)
87 if err != nil {
88 fmt.Fprintln(w, "rpc: error executing template:", err.Error())
89 }
90 }
91
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