OLD | NEW |
| (Empty) |
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "content/browser/tcmalloc_internals_request_job.h" | |
6 | |
7 #include "base/allocator/allocator_extension.h" | |
8 #include "content/common/child_process_messages.h" | |
9 #include "content/public/browser/browser_child_process_host_iterator.h" | |
10 #include "content/public/browser/browser_thread.h" | |
11 #include "content/public/browser/render_process_host.h" | |
12 #include "content/public/common/process_type.h" | |
13 #include "net/base/net_errors.h" | |
14 | |
15 namespace content { | |
16 | |
17 // static | |
18 AboutTcmallocOutputs* AboutTcmallocOutputs::GetInstance() { | |
19 return base::Singleton<AboutTcmallocOutputs>::get(); | |
20 } | |
21 | |
22 AboutTcmallocOutputs::AboutTcmallocOutputs() {} | |
23 | |
24 AboutTcmallocOutputs::~AboutTcmallocOutputs() {} | |
25 | |
26 void AboutTcmallocOutputs::OnStatsForChildProcess( | |
27 base::ProcessId pid, int process_type, | |
28 const std::string& output) { | |
29 std::string header = GetProcessTypeNameInEnglish(process_type); | |
30 base::StringAppendF(&header, " PID %d", static_cast<int>(pid)); | |
31 SetOutput(header, output); | |
32 } | |
33 | |
34 void AboutTcmallocOutputs::SetOutput(const std::string& header, | |
35 const std::string& output) { | |
36 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
37 | |
38 outputs_[header] = output; | |
39 } | |
40 | |
41 void AboutTcmallocOutputs::DumpToHTMLTable(std::string* data) { | |
42 DCHECK_CURRENTLY_ON(BrowserThread::IO); | |
43 | |
44 data->append("<table width=\"100%\">\n"); | |
45 for (AboutTcmallocOutputsType::const_iterator oit = outputs_.begin(); | |
46 oit != outputs_.end(); | |
47 oit++) { | |
48 data->append("<tr><td bgcolor=\"yellow\">"); | |
49 data->append(oit->first); | |
50 data->append("</td></tr>\n"); | |
51 data->append("<tr><td><pre>\n"); | |
52 data->append(oit->second); | |
53 data->append("</pre></td></tr>\n"); | |
54 } | |
55 data->append("</table>\n"); | |
56 outputs_.clear(); | |
57 } | |
58 | |
59 TcmallocInternalsRequestJob::TcmallocInternalsRequestJob( | |
60 net::URLRequest* request, net::NetworkDelegate* network_delegate) | |
61 : net::URLRequestSimpleJob(request, network_delegate) { | |
62 } | |
63 | |
64 #if defined(USE_TCMALLOC) | |
65 void RequestTcmallocStatsFromChildRenderProcesses() { | |
66 RenderProcessHost::iterator it(RenderProcessHost::AllHostsIterator()); | |
67 while (!it.IsAtEnd()) { | |
68 it.GetCurrentValue()->Send(new ChildProcessMsg_GetTcmallocStats); | |
69 it.Advance(); | |
70 } | |
71 } | |
72 | |
73 void AboutTcmalloc(std::string* data) { | |
74 data->append("<!DOCTYPE html>\n<html>\n<head>\n"); | |
75 data->append( | |
76 "<meta http-equiv=\"Content-Security-Policy\" " | |
77 "content=\"object-src 'none'; script-src 'none'\">"); | |
78 data->append("<title>tcmalloc stats</title>"); | |
79 data->append("</head><body>"); | |
80 | |
81 // Display any stats for which we sent off requests the last time. | |
82 data->append("<p>Stats as of last page load;"); | |
83 data->append("reload to get stats as of this page load.</p>\n"); | |
84 data->append("<table width=\"100%\">\n"); | |
85 | |
86 AboutTcmallocOutputs::GetInstance()->DumpToHTMLTable(data); | |
87 | |
88 data->append("</body></html>\n"); | |
89 | |
90 // Populate the collector with stats from the local browser process | |
91 // and send off requests to all the renderer processes. | |
92 char buffer[1024 * 32]; | |
93 base::allocator::GetStats(buffer, sizeof(buffer)); | |
94 std::string browser("Browser"); | |
95 AboutTcmallocOutputs::GetInstance()->SetOutput(browser, buffer); | |
96 | |
97 for (BrowserChildProcessHostIterator iter; !iter.Done(); ++iter) { | |
98 iter.Send(new ChildProcessMsg_GetTcmallocStats); | |
99 } | |
100 | |
101 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, base::Bind( | |
102 &RequestTcmallocStatsFromChildRenderProcesses)); | |
103 } | |
104 #endif | |
105 | |
106 int TcmallocInternalsRequestJob::GetData( | |
107 std::string* mime_type, | |
108 std::string* charset, | |
109 std::string* data, | |
110 const net::CompletionCallback& callback) const { | |
111 mime_type->assign("text/html"); | |
112 charset->assign("UTF8"); | |
113 | |
114 data->clear(); | |
115 #if defined(USE_TCMALLOC) | |
116 AboutTcmalloc(data); | |
117 #endif | |
118 return net::OK; | |
119 } | |
120 | |
121 } // namespace content | |
OLD | NEW |