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/task_manager/renderer_resource.h"
6
7#include "base/basictypes.h"
8#include "chrome/browser/devtools/devtools_window.h"
9#include "chrome/browser/task_manager/resource_provider.h"
10#include "chrome/common/render_messages.h"
11#include "content/public/browser/render_process_host.h"
12#include "content/public/browser/render_view_host.h"
13
14namespace task_manager {
15
16RendererResource::RendererResource(base::ProcessHandle process,
17                                   content::RenderViewHost* render_view_host)
18    : content::RenderViewHostObserver(render_view_host),
19      process_(process),
20      render_view_host_(render_view_host),
21      pending_stats_update_(false),
22      fps_(0.0f),
23      pending_fps_update_(false),
24      v8_memory_allocated_(0),
25      v8_memory_used_(0),
26      pending_v8_memory_allocated_update_(false) {
27  // We cache the process and pid as when a Tab/BackgroundContents is closed the
28  // process reference becomes NULL and the TaskManager still needs it.
29  pid_ = base::GetProcId(process_);
30  unique_process_id_ = render_view_host_->GetProcess()->GetID();
31  memset(&stats_, 0, sizeof(stats_));
32}
33
34RendererResource::~RendererResource() {
35}
36
37void RendererResource::Refresh() {
38  if (!pending_stats_update_) {
39    render_view_host_->Send(new ChromeViewMsg_GetCacheResourceStats);
40    pending_stats_update_ = true;
41  }
42  if (!pending_fps_update_) {
43    render_view_host_->Send(
44        new ChromeViewMsg_GetFPS(render_view_host_->GetRoutingID()));
45    pending_fps_update_ = true;
46  }
47  if (!pending_v8_memory_allocated_update_) {
48    render_view_host_->Send(new ChromeViewMsg_GetV8HeapStats);
49    pending_v8_memory_allocated_update_ = true;
50  }
51}
52
53WebKit::WebCache::ResourceTypeStats
54RendererResource::GetWebCoreCacheStats() const {
55  return stats_;
56}
57
58float RendererResource::GetFPS() const {
59  return fps_;
60}
61
62size_t RendererResource::GetV8MemoryAllocated() const {
63  return v8_memory_allocated_;
64}
65
66size_t RendererResource::GetV8MemoryUsed() const {
67  return v8_memory_used_;
68}
69
70void RendererResource::NotifyResourceTypeStats(
71    const WebKit::WebCache::ResourceTypeStats& stats) {
72  stats_ = stats;
73  pending_stats_update_ = false;
74}
75
76void RendererResource::NotifyFPS(float fps) {
77  fps_ = fps;
78  pending_fps_update_ = false;
79}
80
81void RendererResource::NotifyV8HeapStats(
82    size_t v8_memory_allocated, size_t v8_memory_used) {
83  v8_memory_allocated_ = v8_memory_allocated;
84  v8_memory_used_ = v8_memory_used;
85  pending_v8_memory_allocated_update_ = false;
86}
87
88base::ProcessHandle RendererResource::GetProcess() const {
89  return process_;
90}
91
92int RendererResource::GetUniqueChildProcessId() const {
93  return unique_process_id_;
94}
95
96Resource::Type RendererResource::GetType() const {
97  return RENDERER;
98}
99
100int RendererResource::GetRoutingID() const {
101  return render_view_host_->GetRoutingID();
102}
103
104bool RendererResource::ReportsCacheStats() const {
105  return true;
106}
107
108bool RendererResource::ReportsFPS() const {
109  return true;
110}
111
112bool RendererResource::ReportsV8MemoryStats() const {
113  return true;
114}
115
116bool RendererResource::CanInspect() const {
117  return true;
118}
119
120void RendererResource::Inspect() const {
121  DevToolsWindow::OpenDevToolsWindow(render_view_host_);
122}
123
124bool RendererResource::SupportNetworkUsage() const {
125  return true;
126}
127
128void RendererResource::RenderViewHostDestroyed(
129    content::RenderViewHost* render_view_host) {
130  // We should never get here.  We should get deleted first.
131  // Use this CHECK to help diagnose http://crbug.com/165138.
132  CHECK(false);
133}
134
135}  // namespace task_manager
136