1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_WEBUI_DISCARDS_GRAPH_DUMP_IMPL_H_
#define CHROME_BROWSER_UI_WEBUI_DISCARDS_GRAPH_DUMP_IMPL_H_
#include "base/containers/flat_map.h"
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted_memory.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/threading/sequence_bound.h"
#include "base/types/id_type.h"
#include "chrome/browser/ui/webui/discards/discards.mojom.h"
#include "components/performance_manager/public/graph/frame_node.h"
#include "components/performance_manager/public/graph/graph.h"
#include "components/performance_manager/public/graph/page_node.h"
#include "components/performance_manager/public/graph/process_node.h"
#include "components/performance_manager/public/graph/worker_node.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
class DiscardsGraphDumpImpl : public discards::mojom::GraphDump,
public performance_manager::GraphOwned,
public performance_manager::FrameNodeObserver,
public performance_manager::PageNodeObserver,
public performance_manager::ProcessNodeObserver,
public performance_manager::WorkerNodeObserver {
public:
DiscardsGraphDumpImpl();
DiscardsGraphDumpImpl(const DiscardsGraphDumpImpl&) = delete;
DiscardsGraphDumpImpl& operator=(const DiscardsGraphDumpImpl&) = delete;
~DiscardsGraphDumpImpl() override;
// Creates a new DiscardsGraphDumpImpl to service |receiver| and passes its
// ownership to |graph|.
static void CreateAndBind(
mojo::PendingReceiver<discards::mojom::GraphDump> receiver,
performance_manager::Graph* graph);
// Exposed for testing.
void BindWithGraph(
performance_manager::Graph* graph,
mojo::PendingReceiver<discards::mojom::GraphDump> receiver);
int64_t GetNodeIdForTesting(const performance_manager::Node* node);
protected:
// WebUIGraphDump implementation.
void SubscribeToChanges(
mojo::PendingRemote<discards::mojom::GraphChangeStream> change_subscriber)
override;
void RequestNodeDescriptions(
const std::vector<int64_t>& node_ids,
RequestNodeDescriptionsCallback callback) override;
// GraphOwned implementation.
void OnPassedToGraph(performance_manager::Graph* graph) override;
void OnTakenFromGraph(performance_manager::Graph* graph) override;
// FrameNodeObserver implementation:
void OnFrameNodeAdded(
const performance_manager::FrameNode* frame_node) override;
void OnBeforeFrameNodeRemoved(
const performance_manager::FrameNode* frame_node) override;
void OnURLChanged(const performance_manager::FrameNode* frame_node,
const GURL& previous_value) override;
// PageNodeObserver implementation:
void OnPageNodeAdded(const performance_manager::PageNode* page_node) override;
void OnBeforePageNodeRemoved(
const performance_manager::PageNode* page_node) override;
void OnOpenerFrameNodeChanged(
const performance_manager::PageNode* page_node,
const performance_manager::FrameNode* previous_opener) override;
void OnEmbedderFrameNodeChanged(
const performance_manager::PageNode* page_node,
const performance_manager::FrameNode* previous_embedder) override;
void OnMainFrameUrlChanged(
const performance_manager::PageNode* page_node) override;
void OnFaviconUpdated(
const performance_manager::PageNode* page_node) override;
// ProcessNodeObserver implementation:
void OnProcessNodeAdded(
const performance_manager::ProcessNode* process_node) override;
void OnProcessLifetimeChange(
const performance_manager::ProcessNode* process_node) override;
void OnBeforeProcessNodeRemoved(
const performance_manager::ProcessNode* process_node) override;
// WorkerNodeObserver implementation:
void OnWorkerNodeAdded(
const performance_manager::WorkerNode* worker_node) override;
void OnBeforeWorkerNodeRemoved(
const performance_manager::WorkerNode* worker_node) override;
void OnFinalResponseURLDetermined(
const performance_manager::WorkerNode* worker_node) override;
void OnBeforeClientFrameAdded(
const performance_manager::WorkerNode* worker_node,
const performance_manager::FrameNode* client_frame_node) override;
void OnClientFrameAdded(
const performance_manager::WorkerNode* worker_node,
const performance_manager::FrameNode* client_frame_node) override;
void OnBeforeClientFrameRemoved(
const performance_manager::WorkerNode* worker_node,
const performance_manager::FrameNode* client_frame_node) override;
void OnBeforeClientWorkerAdded(
const performance_manager::WorkerNode* worker_node,
const performance_manager::WorkerNode* client_worker_node) override;
void OnClientWorkerAdded(
const performance_manager::WorkerNode* worker_node,
const performance_manager::WorkerNode* client_worker_node) override;
void OnBeforeClientWorkerRemoved(
const performance_manager::WorkerNode* worker_node,
const performance_manager::WorkerNode* client_worker_node) override;
private:
// The favicon requests happen on the UI thread. This helper class
// maintains the state required to do that.
class FaviconRequestHelper;
using FaviconAvailableCallback =
base::OnceCallback<void(scoped_refptr<base::RefCountedMemory>)>;
using NodeId = base::IdType64<class NodeIdTag>;
void AddNode(const performance_manager::Node* node);
void RemoveNode(const performance_manager::Node* node);
bool HasNode(const performance_manager::Node* node) const;
int64_t GetNodeId(const performance_manager::Node* node) const;
base::SequenceBound<FaviconRequestHelper>& EnsureFaviconRequestHelper();
// Returns a callback that will invoke SendFaviconNotification on the graph
// sequence with the given `serialization_id`.
FaviconAvailableCallback GetFaviconAvailableCallback(
int64_t serialization_id);
void StartPageFaviconRequest(const performance_manager::PageNode* page_node);
void StartFrameFaviconRequest(
const performance_manager::FrameNode* frame_node);
void SendNotificationToAllNodes(bool created);
void SendFrameNotification(const performance_manager::FrameNode* frame,
bool created);
void SendPageNotification(const performance_manager::PageNode* page,
bool created);
void SendProcessNotification(const performance_manager::ProcessNode* process,
bool created);
void SendWorkerNotification(const performance_manager::WorkerNode* worker,
bool created);
void SendDeletionNotification(const performance_manager::Node* node);
void SendFaviconNotification(
int64_t serialization_id,
scoped_refptr<base::RefCountedMemory> bitmap_data);
static void OnConnectionError(DiscardsGraphDumpImpl* impl);
// Helper that requests favicons on the UI thread. Initialized to null to
// avoid posting an initialization task to the UI thread during startup.
// Access this through EnsureFaviconRequestHelper to initialize it on first
// use.
base::SequenceBound<FaviconRequestHelper> favicon_request_helper_;
// The live nodes and their IDs.
base::flat_map<const performance_manager::Node*, NodeId> node_ids_;
base::flat_map<NodeId,
raw_ptr<const performance_manager::Node, CtnExperimental>>
nodes_by_id_;
NodeId::Generator node_id_generator_;
// The current change subscriber to this dumper. This instance is subscribed
// to every node in the graph save for the system node, so long as there is a
// subscriber.
mojo::Remote<discards::mojom::GraphChangeStream> change_subscriber_;
mojo::Receiver<discards::mojom::GraphDump> receiver_{this};
SEQUENCE_CHECKER(sequence_checker_);
base::WeakPtrFactory<DiscardsGraphDumpImpl> weak_factory_{this};
};
#endif // CHROME_BROWSER_UI_WEBUI_DISCARDS_GRAPH_DUMP_IMPL_H_
|
