Source/WebCore/inspector/InspectorHeapProfilerAgent.h

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
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 * in the documentation and/or other materials provided with the
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#ifndef InspectorHeapProfilerAgent_h
#define InspectorHeapProfilerAgent_h

#if ENABLE(JAVASCRIPT_DEBUGGER) && ENABLE(INSPECTOR)

#include "InspectorBaseAgent.h"
#include "InspectorFrontend.h"
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/Noncopyable.h>
#include <wtf/PassOwnPtr.h>
#include <wtf/text/WTFString.h>

namespace WebCore {

class InjectedScriptManager;
class ScriptHeapSnapshot;
class ScriptProfile;

typedef String ErrorString;

class InspectorHeapProfilerAgent : public InspectorBaseAgent, public InspectorHeapProfilerBackendDispatcherHandler {
    WTF_MAKE_NONCOPYABLE(InspectorHeapProfilerAgent); WTF_MAKE_FAST_ALLOCATED;
public:
    static PassOwnPtr<InspectorHeapProfilerAgent> create(InstrumentingAgents*, InjectedScriptManager*);
    virtual ~InspectorHeapProfilerAgent();

    virtual void collectGarbage(ErrorString*);
    virtual void clearProfiles(ErrorString*) { resetState(); }
    void resetState();

    virtual void hasHeapProfiler(ErrorString*, bool*);

    virtual void getProfileHeaders(ErrorString*, RefPtr<TypeBuilder::Array<TypeBuilder::HeapProfiler::ProfileHeader>>&);
    virtual void getHeapSnapshot(ErrorString*, int uid);
    virtual void removeProfile(ErrorString*, int uid);

    virtual void didCreateFrontendAndBackend(InspectorFrontendChannel*, InspectorBackendDispatcher*) OVERRIDE;
    virtual void willDestroyFrontendAndBackend() OVERRIDE;

    virtual void takeHeapSnapshot(ErrorString*, const bool* reportProgress);

    virtual void getObjectByHeapObjectId(ErrorString*, const String& heapSnapshotObjectId, const String* objectGroup, RefPtr<TypeBuilder::Runtime::RemoteObject>& result);
    virtual void getHeapObjectId(ErrorString*, const String& objectId, String* heapSnapshotObjectId);

private:
    InspectorHeapProfilerAgent(InstrumentingAgents*, InjectedScriptManager*);

    typedef HashMap<unsigned, RefPtr<ScriptHeapSnapshot>> IdToHeapSnapshotMap;

    void resetFrontendProfiles();

    PassRefPtr<TypeBuilder::HeapProfiler::ProfileHeader> createSnapshotHeader(const ScriptHeapSnapshot&);

    InjectedScriptManager* m_injectedScriptManager;
    std::unique_ptr<InspectorHeapProfilerFrontendDispatcher> m_frontendDispatcher;
    RefPtr<InspectorHeapProfilerBackendDispatcher> m_backendDispatcher;
    unsigned m_nextUserInitiatedHeapSnapshotNumber;
    IdToHeapSnapshotMap m_snapshots;
    bool m_profileHeadersRequested;
};

} // namespace WebCore

#endif // ENABLE(JAVASCRIPT_DEBUGGER) && ENABLE(INSPECTOR)

#endif // !defined(InspectorHeapProfilerAgent_h)