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      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_V8HEAPPROFILERAGENTIMPL_H_
      6 #define V8_INSPECTOR_V8HEAPPROFILERAGENTIMPL_H_
      7 
      8 #include "src/base/macros.h"
      9 #include "src/inspector/protocol/Forward.h"
     10 #include "src/inspector/protocol/HeapProfiler.h"
     11 
     12 #include "include/v8.h"
     13 
     14 namespace v8_inspector {
     15 
     16 class V8InspectorSessionImpl;
     17 
     18 using protocol::Maybe;
     19 using protocol::Response;
     20 
     21 class V8HeapProfilerAgentImpl : public protocol::HeapProfiler::Backend {
     22  public:
     23   V8HeapProfilerAgentImpl(V8InspectorSessionImpl*, protocol::FrontendChannel*,
     24                           protocol::DictionaryValue* state);
     25   ~V8HeapProfilerAgentImpl() override;
     26   void restore();
     27 
     28   Response collectGarbage() override;
     29 
     30   Response enable() override;
     31   Response startTrackingHeapObjects(Maybe<bool> trackAllocations) override;
     32   Response stopTrackingHeapObjects(Maybe<bool> reportProgress) override;
     33 
     34   Response disable() override;
     35 
     36   Response takeHeapSnapshot(Maybe<bool> reportProgress) override;
     37 
     38   Response getObjectByHeapObjectId(
     39       const String16& heapSnapshotObjectId, Maybe<String16> objectGroup,
     40       std::unique_ptr<protocol::Runtime::RemoteObject>* result) override;
     41   Response addInspectedHeapObject(
     42       const String16& inspectedHeapObjectId) override;
     43   Response getHeapObjectId(const String16& objectId,
     44                            String16* heapSnapshotObjectId) override;
     45 
     46   Response startSampling(Maybe<double> samplingInterval) override;
     47   Response stopSampling(
     48       std::unique_ptr<protocol::HeapProfiler::SamplingHeapProfile>*) override;
     49 
     50  private:
     51   void startTrackingHeapObjectsInternal(bool trackAllocations);
     52   void stopTrackingHeapObjectsInternal();
     53   void requestHeapStatsUpdate();
     54   static void onTimer(void*);
     55 
     56   V8InspectorSessionImpl* m_session;
     57   v8::Isolate* m_isolate;
     58   protocol::HeapProfiler::Frontend m_frontend;
     59   protocol::DictionaryValue* m_state;
     60   bool m_hasTimer;
     61 
     62   DISALLOW_COPY_AND_ASSIGN(V8HeapProfilerAgentImpl);
     63 };
     64 
     65 }  // namespace v8_inspector
     66 
     67 #endif  // V8_INSPECTOR_V8HEAPPROFILERAGENTIMPL_H_
     68