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chromium / chromium / src.git / f6f6f6906b091e26b9375b073fcbcbdf4cc5145a / . / content / browser / tcmalloc_internals_request_job.cc
blob: 58e78afeea29d3ad8e5e05a7ed6aca5327ae6a9e [file] [log] [blame]
[email protected]3d662c32012-04-25 00:05:17[diff] [blame]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
[email protected]237a14852012-04-28 02:56:38[diff] [blame]7#include "base/allocator/allocator_extension.h"
[email protected]3d662c32012-04-25 00:05:17[diff] [blame]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"
[email protected]36ffc7342012-07-23 17:15:10[diff] [blame]13#include "net/base/net_errors.h"
[email protected]3d662c32012-04-25 00:05:17[diff] [blame]14
[email protected]3d662c32012-04-25 00:05:17[diff] [blame]15namespace content {
16
17// static
18AboutTcmallocOutputs* AboutTcmallocOutputs::GetInstance() {
19 return Singleton<AboutTcmallocOutputs>::get();
20}
21
22AboutTcmallocOutputs::AboutTcmallocOutputs() {}
23
24AboutTcmallocOutputs::~AboutTcmallocOutputs() {}
25
26void AboutTcmallocOutputs::OnStatsForChildProcess(
[email protected]f3b357692013-03-22 05:16:13[diff] [blame]27 base::ProcessId pid, int process_type,
[email protected]3d662c32012-04-25 00:05:17[diff] [blame]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
34void AboutTcmallocOutputs::SetOutput(const std::string& header,
35 const std::string& output) {
36 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
37
38 outputs_[header] = output;
39}
40
41void AboutTcmallocOutputs::DumpToHTMLTable(std::string* data) {
42 DCHECK(BrowserThread::CurrentlyOn(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
59TcmallocInternalsRequestJob::TcmallocInternalsRequestJob(
[email protected]9f170462012-08-24 01:06:58[diff] [blame]60 net::URLRequest* request, net::NetworkDelegate* network_delegate)
61 : net::URLRequestSimpleJob(request, network_delegate) {
[email protected]3d662c32012-04-25 00:05:17[diff] [blame]62}
63
64#if defined(USE_TCMALLOC)
65void RequestTcmallocStatsFromChildRenderProcesses() {
66 RenderProcessHost::iterator it(RenderProcessHost::AllHostsIterator());
67 while (!it.IsAtEnd()) {
68 it.GetCurrentValue()->Send(new ChildProcessMsg_GetTcmallocStats);
69 it.Advance();
70 }
71}
72
73void AboutTcmalloc(std::string* data) {
74 data->append("<!DOCTYPE html>\n<html>\n<head>\n");
[email protected]92d32d882012-04-30 21:20:05[diff] [blame]75 data->append(
[email protected]4db72872012-11-07 15:34:50[diff] [blame]76 "<meta http-equiv=\"Content-Security-Policy\" "
[email protected]6ed944a2013-05-31 22:41:58[diff] [blame]77 "content=\"object-src 'none'; script-src 'none'\">");
[email protected]3d662c32012-04-25 00:05:17[diff] [blame]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];
[email protected]237a14852012-04-28 02:56:38[diff] [blame]93 base::allocator::GetStats(buffer, sizeof(buffer));
[email protected]3d662c32012-04-25 00:05:17[diff] [blame]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
[email protected]36ffc7342012-07-23 17:15:10[diff] [blame]106int TcmallocInternalsRequestJob::GetData(
107 std::string* mime_type,
108 std::string* charset,
109 std::string* data,
110 const net::CompletionCallback& callback) const {
[email protected]3d662c32012-04-25 00:05:17[diff] [blame]111 mime_type->assign("text/html");
112 charset->assign("UTF8");
113
114 data->clear();
115#if defined(USE_TCMALLOC)
116 AboutTcmalloc(data);
117#endif
[email protected]36ffc7342012-07-23 17:15:10[diff] [blame]118 return net::OK;
[email protected]3d662c32012-04-25 00:05:17[diff] [blame]119}
120
121} // namespace content