third_party/WebKit/Source/core/loader/DocumentLoadTiming.h

/*
 * Copyright (C) 2010 Google, Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY GOOGLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GOOGLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef DocumentLoadTiming_h
#define DocumentLoadTiming_h

#include "core/CoreExport.h"
#include "platform/heap/Handle.h"
#include "wtf/CurrentTime.h"

namespace blink {

class DocumentLoader;
class KURL;
class LocalFrame;

class CORE_EXPORT DocumentLoadTiming final {
    DISALLOW_NEW();
public:
    explicit DocumentLoadTiming(DocumentLoader&);

    double monotonicTimeToZeroBasedDocumentTime(double) const;
    double monotonicTimeToPseudoWallTime(double) const;
    double pseudoWallTimeToMonotonicTime(double) const;

    void markNavigationStart();
    void setNavigationStart(double);
    void addRedirect(const KURL& redirectingUrl, const KURL& redirectedUrl);

    void markUnloadEventStart();
    void markUnloadEventEnd();
    void markFetchStart();
    void setResponseEnd(double);
    void markLoadEventStart();
    void markLoadEventEnd();

    void setHasSameOriginAsPreviousDocument(bool value) { m_hasSameOriginAsPreviousDocument = value; }

    double navigationStart() const { return m_navigationStart; }
    double unloadEventStart() const { return m_unloadEventStart; }
    double unloadEventEnd() const { return m_unloadEventEnd; }
    double redirectStart() const { return m_redirectStart; }
    double redirectEnd() const { return m_redirectEnd; }
    short redirectCount() const { return m_redirectCount; }
    double fetchStart() const { return m_fetchStart; }
    double responseEnd() const { return m_responseEnd; }
    double loadEventStart() const { return m_loadEventStart; }
    double loadEventEnd() const { return m_loadEventEnd; }
    bool hasCrossOriginRedirect() const { return m_hasCrossOriginRedirect; }
    bool hasSameOriginAsPreviousDocument() const { return m_hasSameOriginAsPreviousDocument; }

    double referenceMonotonicTime() const { return m_referenceMonotonicTime; }

    DECLARE_TRACE();

private:
    void setRedirectStart(double);
    void markRedirectEnd();
    void notifyDocumentTimingChanged();
    void ensureReferenceTimesSet();
    LocalFrame* frame() const;

    double m_referenceMonotonicTime;
    double m_referenceWallTime;
    double m_navigationStart;
    double m_unloadEventStart;
    double m_unloadEventEnd;
    double m_redirectStart;
    double m_redirectEnd;
    short m_redirectCount;
    double m_fetchStart;
    double m_responseEnd;
    double m_loadEventStart;
    double m_loadEventEnd;
    bool m_hasCrossOriginRedirect;
    bool m_hasSameOriginAsPreviousDocument;

    RawPtrWillBeMember<DocumentLoader> m_documentLoader;
};

} // namespace blink

#endif