2009-07-29 14:26:49 -06:00
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// 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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"http";
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"os";
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"sort";
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"template";
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)
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2009-10-07 12:55:06 -06:00
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const debugText = `<html>
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2009-07-29 14:26:49 -06:00
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<body>
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<title>Services</title>
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{.repeated section @}
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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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{.repeated section meth}
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<tr>
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2009-07-30 19:17:07 -06:00
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<td align=left font=fixed>{name}({m.argType}, {m.replyType}) os.Error</td>
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<td align=center>{m.numCalls}</td>
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2009-07-29 14:26:49 -06:00
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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.Template
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type debugMethod struct {
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m *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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s *service;
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name string;
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meth methodArray;
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}
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type serviceArray []debugService
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2009-10-07 12:55:06 -06:00
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func (s serviceArray) Len() int {
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return len(s);
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}
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func (s serviceArray) Less(i, j int) bool {
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return s[i].name < s[j].name;
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}
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func (s serviceArray) Swap(i, j int) {
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s[i], s[j] = s[j], s[i];
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}
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2009-07-29 14:26:49 -06:00
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2009-10-07 12:55:06 -06:00
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func (m methodArray) Len() int {
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return len(m);
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}
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func (m methodArray) Less(i, j int) bool {
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return m[i].name < m[j].name;
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}
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func (m methodArray) Swap(i, j int) {
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m[i], m[j] = m[j], m[i];
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}
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2009-07-29 14:26:49 -06:00
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// Runs at /debug/rpc
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func debugHTTP(c *http.Conn, req *http.Request) {
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var err os.Error;
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if debug == nil {
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debug, err = template.Parse(debugText, nil);
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if err != nil {
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fmt.Fprintln(c, "rpc can't create debug HTML template:", err.String());
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return;
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}
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}
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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.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].meth[j] = debugMethod{method, mname};
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j++;
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}
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sort.Sort(services[i].meth);
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i++;
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}
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server.Unlock();
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sort.Sort(services);
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err = debug.Execute(services, c);
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if err != nil {
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fmt.Fprintln(c, "rpc: error executing template:", err.String());
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}
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}
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