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