memory_internals_proxy.cc revision e5d81f57cb97b3b6b7fccc9c5610d21eb81db09d 
1// Copyright 2013 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 "chrome/browser/ui/webui/memory_internals/memory_internals_proxy.h"
6
7#include <set>
8#include <string>
9#include <vector>
10
11#include "base/bind.h"
12#include "base/strings/string16.h"
13#include "base/sys_info.h"
14#include "base/values.h"
15#include "chrome/browser/browser_process.h"
16#include "chrome/browser/chrome_notification_types.h"
17#include "chrome/browser/memory_details.h"
18#include "chrome/browser/prerender/prerender_manager.h"
19#include "chrome/browser/prerender/prerender_manager_factory.h"
20#include "chrome/browser/profiles/profile.h"
21#include "chrome/browser/profiles/profile_manager.h"
22#include "chrome/browser/renderer_host/chrome_render_message_filter.h"
23#include "chrome/browser/ui/android/tab_model/tab_model.h"
24#include "chrome/browser/ui/android/tab_model/tab_model_list.h"
25#include "chrome/browser/ui/browser.h"
26#include "chrome/browser/ui/browser_iterator.h"
27#include "chrome/browser/ui/tab_contents/tab_contents_iterator.h"
28#include "chrome/browser/ui/webui/memory_internals/memory_internals_handler.h"
29#include "chrome/common/render_messages.h"
30#include "content/public/browser/navigation_controller.h"
31#include "content/public/browser/navigation_entry.h"
32#include "content/public/browser/notification_observer.h"
33#include "content/public/browser/notification_registrar.h"
34#include "content/public/browser/notification_service.h"
35#include "content/public/browser/render_process_host.h"
36#include "content/public/browser/render_view_host.h"
37#include "content/public/browser/web_contents.h"
38#include "content/public/browser/web_ui.h"
39
40#if defined(ENABLE_FULL_PRINTING)
41#include "chrome/browser/printing/background_printing_manager.h"
42#endif
43
44using content::BrowserThread;
45
46class Profile;
47
48namespace {
49
50class ProcessDetails : public MemoryDetails {
51 public:
52  typedef base::Callback<void(const ProcessData&)> DataCallback;
53  explicit ProcessDetails(const DataCallback& callback)
54      : callback_(callback) {}
55  // MemoryDetails:
56  virtual void OnDetailsAvailable() OVERRIDE {
57    const std::vector<ProcessData>& browser_processes = processes();
58    // [0] means Chrome.
59    callback_.Run(browser_processes[0]);
60  }
61
62 private:
63  virtual ~ProcessDetails() {}
64
65  DataCallback callback_;
66
67  DISALLOW_COPY_AND_ASSIGN(ProcessDetails);
68};
69
70base::DictionaryValue* FindProcessFromPid(base::ListValue* processes,
71                                          base::ProcessId pid) {
72  const size_t n = processes->GetSize();
73  for (size_t i = 0; i < n; ++i) {
74    base::DictionaryValue* process;
75    if (!processes->GetDictionary(i, &process))
76      return NULL;
77    int id;
78    if (process->GetInteger("pid", &id) && id == static_cast<int>(pid))
79      return process;
80  }
81  return NULL;
82}
83
84void GetAllWebContents(std::set<content::WebContents*>* web_contents) {
85  // Add all the existing WebContentses.
86#if defined(OS_ANDROID)
87  for (TabModelList::const_iterator iter = TabModelList::begin();
88       iter != TabModelList::end(); ++iter) {
89    TabModel* model = *iter;
90    for (int i = 0; i < model->GetTabCount(); ++i)
91      web_contents->insert(model->GetWebContentsAt(i));
92  }
93#else
94  for (TabContentsIterator iter; !iter.done(); iter.Next())
95    web_contents->insert(*iter);
96#endif
97  // Add all the prerender pages.
98  std::vector<Profile*> profiles(
99      g_browser_process->profile_manager()->GetLoadedProfiles());
100  for (size_t i = 0; i < profiles.size(); ++i) {
101    prerender::PrerenderManager* prerender_manager =
102        prerender::PrerenderManagerFactory::GetForProfile(profiles[i]);
103    if (!prerender_manager)
104      continue;
105    const std::vector<content::WebContents*> contentses =
106        prerender_manager->GetAllPrerenderingContents();
107    web_contents->insert(contentses.begin(), contentses.end());
108  }
109#if defined(ENABLE_FULL_PRINTING)
110  // Add all the pages being background printed.
111  printing::BackgroundPrintingManager* printing_manager =
112      g_browser_process->background_printing_manager();
113  std::set<content::WebContents*> printing_contents =
114      printing_manager->CurrentContentSet();
115  web_contents->insert(printing_contents.begin(), printing_contents.end());
116#endif
117}
118
119}  // namespace
120
121class RendererDetails : public content::NotificationObserver {
122 public:
123  typedef base::Callback<void(const base::ProcessId pid,
124                              const size_t v8_allocated,
125                              const size_t v8_used)> V8DataCallback;
126
127  explicit RendererDetails(const V8DataCallback& callback)
128      : callback_(callback) {
129    registrar_.Add(this, chrome::NOTIFICATION_RENDERER_V8_HEAP_STATS_COMPUTED,
130                   content::NotificationService::AllSources());
131  }
132  virtual ~RendererDetails() {}
133
134  void Request() {
135    for (std::set<content::WebContents*>::iterator iter = web_contents_.begin();
136         iter != web_contents_.end(); ++iter)
137      (*iter)->GetRenderViewHost()->Send(new ChromeViewMsg_GetV8HeapStats);
138  }
139
140  void AddWebContents(content::WebContents* content) {
141    web_contents_.insert(content);
142  }
143
144  void Clear() {
145    web_contents_.clear();
146  }
147
148  void RemoveWebContents(base::ProcessId) {
149    // We don't have to detect which content is the caller of this method.
150    if (!web_contents_.empty())
151      web_contents_.erase(web_contents_.begin());
152  }
153
154  int IsClean() {
155    return web_contents_.empty();
156  }
157
158 private:
159  // NotificationObserver:
160  virtual void Observe(int type,
161                       const content::NotificationSource& source,
162                       const content::NotificationDetails& details) OVERRIDE {
163    const base::ProcessId* pid =
164        content::Source<const base::ProcessId>(source).ptr();
165    const ChromeRenderMessageFilter::V8HeapStatsDetails* v8_heap =
166        content::Details<const ChromeRenderMessageFilter::V8HeapStatsDetails>(
167            details).ptr();
168    callback_.Run(*pid,
169                  v8_heap->v8_memory_allocated(),
170                  v8_heap->v8_memory_used());
171  }
172
173  V8DataCallback callback_;
174  content::NotificationRegistrar registrar_;
175  std::set<content::WebContents*> web_contents_;  // This class does not own
176
177  DISALLOW_COPY_AND_ASSIGN(RendererDetails);
178};
179
180MemoryInternalsProxy::MemoryInternalsProxy()
181    : information_(new base::DictionaryValue()),
182      renderer_details_(new RendererDetails(
183          base::Bind(&MemoryInternalsProxy::OnRendererAvailable, this))) {}
184
185void MemoryInternalsProxy::Attach(MemoryInternalsHandler* handler) {
186  DCHECK_CURRENTLY_ON(BrowserThread::UI);
187  handler_ = handler;
188}
189
190void MemoryInternalsProxy::Detach() {
191  DCHECK_CURRENTLY_ON(BrowserThread::UI);
192  handler_ = NULL;
193}
194
195void MemoryInternalsProxy::StartFetch(const base::ListValue* list) {
196  DCHECK_CURRENTLY_ON(BrowserThread::UI);
197
198  // Clear previous information before fetching new information.
199  information_->Clear();
200  scoped_refptr<ProcessDetails> process(new ProcessDetails(
201      base::Bind(&MemoryInternalsProxy::OnProcessAvailable, this)));
202  process->StartFetch(MemoryDetails::SKIP_USER_METRICS);
203}
204
205MemoryInternalsProxy::~MemoryInternalsProxy() {}
206
207void MemoryInternalsProxy::RequestRendererDetails() {
208  renderer_details_->Clear();
209
210#if defined(OS_ANDROID)
211  for (TabModelList::const_iterator iter = TabModelList::begin();
212       iter != TabModelList::end(); ++iter) {
213    TabModel* model = *iter;
214    for (int i = 0; i < model->GetTabCount(); ++i)
215      renderer_details_->AddWebContents(model->GetWebContentsAt(i));
216  }
217#else
218  for (TabContentsIterator iter; !iter.done(); iter.Next())
219    renderer_details_->AddWebContents(*iter);
220#endif
221
222  renderer_details_->Request();
223}
224
225void MemoryInternalsProxy::OnProcessAvailable(const ProcessData& browser) {
226  base::ListValue* process_info = new base::ListValue();
227  base::ListValue* extension_info = new base::ListValue();
228  information_->Set("processes", process_info);
229  information_->Set("extensions", extension_info);
230  for (PMIIterator iter = browser.processes.begin();
231       iter != browser.processes.end(); ++iter) {
232    base::DictionaryValue* process = new base::DictionaryValue();
233    if (iter->renderer_type == ProcessMemoryInformation::RENDERER_EXTENSION)
234      extension_info->Append(process);
235    else
236      process_info->Append(process);
237
238    // From MemoryDetails.
239    process->SetInteger("pid", iter->pid);
240    process->SetString("type",
241                       ProcessMemoryInformation::GetFullTypeNameInEnglish(
242                           iter->process_type, iter->renderer_type));
243    process->SetInteger("memory_private", iter->working_set.priv);
244
245    base::ListValue* titles = new base::ListValue();
246    process->Set("titles", titles);
247    for (size_t i = 0; i < iter->titles.size(); ++i)
248      titles->AppendString(iter->titles[i]);
249  }
250
251  std::set<content::WebContents*> web_contents;
252  GetAllWebContents(&web_contents);
253  ConvertTabsInformation(web_contents, process_info);
254
255  RequestRendererDetails();
256}
257
258void MemoryInternalsProxy::OnRendererAvailable(const base::ProcessId pid,
259                                               const size_t v8_allocated,
260                                               const size_t v8_used) {
261  // Do not update while no renderers are registered.
262  if (renderer_details_->IsClean())
263    return;
264
265  base::ListValue* processes;
266  if (!information_->GetList("processes", &processes))
267    return;
268
269  const size_t size = processes->GetSize();
270  for (size_t i = 0; i < size; ++i) {
271    base::DictionaryValue* process;
272    processes->GetDictionary(i, &process);
273    int id;
274    if (!process->GetInteger("pid", &id) || id != static_cast<int>(pid))
275      continue;
276    // Convert units from Bytes to KiB.
277    process->SetInteger("v8_alloc", v8_allocated / 1024);
278    process->SetInteger("v8_used", v8_used / 1024);
279    break;
280  }
281
282  renderer_details_->RemoveWebContents(pid);
283  if (renderer_details_->IsClean())
284    FinishCollection();
285}
286
287void MemoryInternalsProxy::ConvertTabsInformation(
288    const std::set<content::WebContents*>& web_contents,
289    base::ListValue* processes) {
290  for (std::set<content::WebContents*>::const_iterator
291           iter = web_contents.begin(); iter != web_contents.end(); ++iter) {
292    content::WebContents* web = *iter;
293    const base::ProcessId pid = base::GetProcId(
294        web->GetRenderProcessHost()->GetHandle());
295
296    // Find which process renders the web contents.
297    base::DictionaryValue* process = FindProcessFromPid(processes, pid);
298    if (!process)
299      continue;
300
301    // Prepare storage to register navigation histories.
302    base::ListValue* tabs;
303    if (!process->GetList("history", &tabs)) {
304      tabs = new base::ListValue();
305      process->Set("history", tabs);
306    }
307
308    base::DictionaryValue* tab = new base::DictionaryValue();
309    tabs->Append(tab);
310
311    base::ListValue* histories = new base::ListValue();
312    tab->Set("history", histories);
313
314    const content::NavigationController& controller = web->GetController();
315    const int entry_size = controller.GetEntryCount();
316    for (int i = 0; i < entry_size; ++i) {
317      content::NavigationEntry *entry = controller.GetEntryAtIndex(i);
318      base::DictionaryValue* history = new base::DictionaryValue();
319      histories->Append(history);
320      history->SetString("url", entry->GetURL().spec());
321      history->SetString("title", entry->GetTitle());
322      history->SetInteger("time", (base::Time::Now() -
323                                   entry->GetTimestamp()).InSeconds());
324    }
325    tab->SetInteger("index", controller.GetCurrentEntryIndex());
326  }
327}
328
329void MemoryInternalsProxy::FinishCollection() {
330  information_->SetInteger("uptime", base::SysInfo::Uptime());
331  information_->SetString("os", base::SysInfo::OperatingSystemName());
332  information_->SetString("os_version",
333                          base::SysInfo::OperatingSystemVersion());
334
335  CallJavaScriptFunctionOnUIThread("g_main_view.onSetSnapshot", *information_);
336}
337
338void MemoryInternalsProxy::CallJavaScriptFunctionOnUIThread(
339    const std::string& function, const base::Value& args) {
340  DCHECK_CURRENTLY_ON(BrowserThread::UI);
341
342  std::vector<const base::Value*> args_vector(1, &args);
343  base::string16 update =
344      content::WebUI::GetJavascriptCall(function, args_vector);
345  // Don't forward updates to a destructed UI.
346  if (handler_)
347    handler_->OnUpdate(update);
348}
349