InspectorHeapAgent.h [plain text]
#pragma once
#include "HeapObserver.h"
#include "InspectorAgentBase.h"
#include "InspectorBackendDispatchers.h"
#include "InspectorFrontendDispatchers.h"
#include <wtf/Forward.h>
#include <wtf/Noncopyable.h>
#include <wtf/Seconds.h>
namespace JSC {
struct HeapSnapshotNode;
}
namespace Inspector {
class InjectedScriptManager;
typedef String ErrorString;
class JS_EXPORT_PRIVATE InspectorHeapAgent : public InspectorAgentBase, public HeapBackendDispatcherHandler, public JSC::HeapObserver {
WTF_MAKE_NONCOPYABLE(InspectorHeapAgent);
WTF_MAKE_FAST_ALLOCATED;
public:
InspectorHeapAgent(AgentContext&);
virtual ~InspectorHeapAgent();
void didCreateFrontendAndBackend(FrontendRouter*, BackendDispatcher*) override;
void willDestroyFrontendAndBackend(DisconnectReason) override;
void enable(ErrorString&) override;
void disable(ErrorString&) override;
void gc(ErrorString&) final;
void snapshot(ErrorString&, double* timestamp, String* snapshotData) final;
void startTracking(ErrorString&) final;
void stopTracking(ErrorString&) final;
void getPreview(ErrorString&, int heapObjectId, std::optional<String>& resultString, RefPtr<Protocol::Debugger::FunctionDetails>&, RefPtr<Protocol::Runtime::ObjectPreview>&) final;
void getRemoteObject(ErrorString&, int heapObjectId, const String* optionalObjectGroup, RefPtr<Protocol::Runtime::RemoteObject>& result) final;
void willGarbageCollect() override;
void didGarbageCollect(JSC::CollectionScope) override;
protected:
void clearHeapSnapshots();
virtual void dispatchGarbageCollectedEvent(Protocol::Heap::GarbageCollection::Type, Seconds startTime, Seconds endTime);
private:
std::optional<JSC::HeapSnapshotNode> nodeForHeapObjectIdentifier(ErrorString&, unsigned heapObjectIdentifier);
InjectedScriptManager& m_injectedScriptManager;
std::unique_ptr<HeapFrontendDispatcher> m_frontendDispatcher;
RefPtr<HeapBackendDispatcher> m_backendDispatcher;
InspectorEnvironment& m_environment;
bool m_enabled { false };
bool m_tracking { false };
Seconds m_gcStartTime { Seconds::nan() };
};
}