1// Copyright 2016 the V8 project 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#ifndef V8_INSPECTOR_V8_HEAP_PROFILER_AGENT_IMPL_H_
6#define V8_INSPECTOR_V8_HEAP_PROFILER_AGENT_IMPL_H_
7
8#include <memory>
9
10#include "src/base/macros.h"
11#include "src/inspector/protocol/Forward.h"
12#include "src/inspector/protocol/HeapProfiler.h"
13
14namespace v8 {
15class Isolate;
16}
17
18namespace v8_inspector {
19
20class V8InspectorSessionImpl;
21
22using protocol::Maybe;
23using protocol::Response;
24
25class V8HeapProfilerAgentImpl : public protocol::HeapProfiler::Backend {
26 public:
27  V8HeapProfilerAgentImpl(V8InspectorSessionImpl*, protocol::FrontendChannel*,
28                          protocol::DictionaryValue* state);
29  ~V8HeapProfilerAgentImpl() override;
30  V8HeapProfilerAgentImpl(const V8HeapProfilerAgentImpl&) = delete;
31  V8HeapProfilerAgentImpl& operator=(const V8HeapProfilerAgentImpl&) = delete;
32  void restore();
33
34  void collectGarbage(
35      std::unique_ptr<CollectGarbageCallback> callback) override;
36
37  Response enable() override;
38  Response startTrackingHeapObjects(Maybe<bool> trackAllocations) override;
39  Response stopTrackingHeapObjects(Maybe<bool> reportProgress,
40                                   Maybe<bool> treatGlobalObjectsAsRoots,
41                                   Maybe<bool> captureNumericValue) override;
42
43  Response disable() override;
44
45  Response takeHeapSnapshot(Maybe<bool> reportProgress,
46                            Maybe<bool> treatGlobalObjectsAsRoots,
47                            Maybe<bool> captureNumericValue) override;
48
49  Response getObjectByHeapObjectId(
50      const String16& heapSnapshotObjectId, Maybe<String16> objectGroup,
51      std::unique_ptr<protocol::Runtime::RemoteObject>* result) override;
52  Response addInspectedHeapObject(
53      const String16& inspectedHeapObjectId) override;
54  Response getHeapObjectId(const String16& objectId,
55                           String16* heapSnapshotObjectId) override;
56
57  Response startSampling(Maybe<double> samplingInterval) override;
58  Response stopSampling(
59      std::unique_ptr<protocol::HeapProfiler::SamplingHeapProfile>*) override;
60  Response getSamplingProfile(
61      std::unique_ptr<protocol::HeapProfiler::SamplingHeapProfile>*) override;
62
63 private:
64  struct AsyncGC;
65  class GCTask;
66
67  void startTrackingHeapObjectsInternal(bool trackAllocations);
68  void stopTrackingHeapObjectsInternal();
69  void requestHeapStatsUpdate();
70  static void onTimer(void*);
71
72  V8InspectorSessionImpl* m_session;
73  v8::Isolate* m_isolate;
74  protocol::HeapProfiler::Frontend m_frontend;
75  protocol::DictionaryValue* m_state;
76  bool m_hasTimer;
77  std::shared_ptr<AsyncGC> m_async_gc;
78};
79
80}  // namespace v8_inspector
81
82#endif  // V8_INSPECTOR_V8_HEAP_PROFILER_AGENT_IMPL_H_
83