91 lines
2.2 KiB
Go
91 lines
2.2 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package rpc
|
|
|
|
/*
|
|
Some HTML presented at http://machine:port/debug/rpc
|
|
Lists services, their methods, and some statistics, still rudimentary.
|
|
*/
|
|
|
|
import (
|
|
"fmt"
|
|
"html/template"
|
|
"net/http"
|
|
"sort"
|
|
)
|
|
|
|
const debugText = `<html>
|
|
<body>
|
|
<title>Services</title>
|
|
{{range .}}
|
|
<hr>
|
|
Service {{.Name}}
|
|
<hr>
|
|
<table>
|
|
<th align=center>Method</th><th align=center>Calls</th>
|
|
{{range .Method}}
|
|
<tr>
|
|
<td align=left font=fixed>{{.Name}}({{.Type.ArgType}}, {{.Type.ReplyType}}) error</td>
|
|
<td align=center>{{.Type.NumCalls}}</td>
|
|
</tr>
|
|
{{end}}
|
|
</table>
|
|
{{end}}
|
|
</body>
|
|
</html>`
|
|
|
|
var debug = template.Must(template.New("RPC debug").Parse(debugText))
|
|
|
|
// If set, print log statements for internal and I/O errors.
|
|
var debugLog = false
|
|
|
|
type debugMethod struct {
|
|
Type *methodType
|
|
Name string
|
|
}
|
|
|
|
type methodArray []debugMethod
|
|
|
|
type debugService struct {
|
|
Service *service
|
|
Name string
|
|
Method methodArray
|
|
}
|
|
|
|
type serviceArray []debugService
|
|
|
|
func (s serviceArray) Len() int { return len(s) }
|
|
func (s serviceArray) Less(i, j int) bool { return s[i].Name < s[j].Name }
|
|
func (s serviceArray) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
|
|
|
|
func (m methodArray) Len() int { return len(m) }
|
|
func (m methodArray) Less(i, j int) bool { return m[i].Name < m[j].Name }
|
|
func (m methodArray) Swap(i, j int) { m[i], m[j] = m[j], m[i] }
|
|
|
|
type debugHTTP struct {
|
|
*Server
|
|
}
|
|
|
|
// Runs at /debug/rpc
|
|
func (server debugHTTP) ServeHTTP(w http.ResponseWriter, req *http.Request) {
|
|
// Build a sorted version of the data.
|
|
var services serviceArray
|
|
server.serviceMap.Range(func(snamei, svci interface{}) bool {
|
|
svc := svci.(*service)
|
|
ds := debugService{svc, snamei.(string), make(methodArray, 0, len(svc.method))}
|
|
for mname, method := range svc.method {
|
|
ds.Method = append(ds.Method, debugMethod{method, mname})
|
|
}
|
|
sort.Sort(ds.Method)
|
|
services = append(services, ds)
|
|
return true
|
|
})
|
|
sort.Sort(services)
|
|
err := debug.Execute(w, services)
|
|
if err != nil {
|
|
fmt.Fprintln(w, "rpc: error executing template:", err.Error())
|
|
}
|
|
}
|