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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
* Copyright (C) 2012 Intel 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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 PerformanceBase_h
#define PerformanceBase_h
#include "core/CoreExport.h"
#include "core/dom/DOMHighResTimeStamp.h"
#include "core/events/EventTarget.h"
#include "core/loader/FrameLoaderTypes.h"
#include "core/timing/PerformanceEntry.h"
#include "core/timing/PerformanceNavigationTiming.h"
#include "core/timing/PerformancePaintTiming.h"
#include "platform/Timer.h"
#include "platform/heap/Handle.h"
#include "wtf/Forward.h"
#include "wtf/HashSet.h"
#include "wtf/ListHashSet.h"
#include "wtf/Vector.h"
namespace blink {
class ExceptionState;
class LocalFrame;
class PerformanceObserver;
class PerformanceTiming;
class ResourceResponse;
class ResourceTimingInfo;
class UserTiming;
using PerformanceEntryVector = HeapVector<Member<PerformanceEntry>>;
using PerformanceObservers = HeapListHashSet<Member<PerformanceObserver>>;
class CORE_EXPORT PerformanceBase : public EventTargetWithInlineData {
friend class PerformanceBaseTest;
public:
~PerformanceBase() override;
const AtomicString& interfaceName() const override;
virtual PerformanceTiming* timing() const;
virtual void updateLongTaskInstrumentation() {}
// Reduce the resolution to 5µs to prevent timing attacks. See:
// http://www.w3.org/TR/hr-time-2/#privacy-security
static double clampTimeResolution(double timeSeconds);
// monotonicTime needs to be no smaller than timeOrigin.
static DOMHighResTimeStamp monotonicTimeToDOMHighResTimeStamp(
double timeOrigin,
double monotonicTime);
// Translate given platform monotonic time in seconds into a high resolution
// DOMHighResTimeStamp in milliseconds. The result timestamp is relative to
// document's time origin and has a time resolution that is safe for
// exposing to web. The monotonic time provided needs to be no smaller than
// document's time origin.
DOMHighResTimeStamp monotonicTimeToDOMHighResTimeStamp(double) const;
DOMHighResTimeStamp now() const;
double timeOrigin() const { return m_timeOrigin; }
PerformanceEntryVector getEntries() const;
PerformanceEntryVector getEntriesByType(const String& entryType);
PerformanceEntryVector getEntriesByName(const String& name,
const String& entryType);
void clearResourceTimings();
void setResourceTimingBufferSize(unsigned);
DEFINE_ATTRIBUTE_EVENT_LISTENER(resourcetimingbufferfull);
void clearFrameTimings();
void setFrameTimingBufferSize(unsigned);
DEFINE_ATTRIBUTE_EVENT_LISTENER(frametimingbufferfull);
void addLongTaskTiming(double startTime,
double endTime,
const String& name,
const String& culpritFrameSrc,
const String& culpritFrameId,
const String& culpritFrameName);
void addResourceTiming(const ResourceTimingInfo&);
void addNavigationTiming(LocalFrame*);
void addFirstPaintTiming(double startTime);
void addFirstContentfulPaintTiming(double startTime);
void mark(const String& markName, ExceptionState&);
void clearMarks(const String& markName);
void measure(const String& measureName,
const String& startMark,
const String& endMark,
ExceptionState&);
void clearMeasures(const String& measureName);
void unregisterPerformanceObserver(PerformanceObserver&);
void registerPerformanceObserver(PerformanceObserver&);
void updatePerformanceObserverFilterOptions();
void activateObserver(PerformanceObserver&);
void resumeSuspendedObservers();
DECLARE_VIRTUAL_TRACE();
private:
static PerformanceNavigationTiming::NavigationType getNavigationType(
NavigationType,
const Document*);
static bool allowsTimingRedirect(const Vector<ResourceResponse>&,
const ResourceResponse&,
const SecurityOrigin&,
ExecutionContext*);
static bool passesTimingAllowCheck(const ResourceResponse&,
const SecurityOrigin&,
const AtomicString&,
ExecutionContext*);
void addPaintTiming(PerformancePaintTiming::PaintType, double startTime);
protected:
explicit PerformanceBase(double timeOrigin);
bool isResourceTimingBufferFull();
void addResourceTimingBuffer(PerformanceEntry&);
bool isFrameTimingBufferFull();
void addFrameTimingBuffer(PerformanceEntry&);
void notifyObserversOfEntry(PerformanceEntry&);
bool hasObserverFor(PerformanceEntry::EntryType) const;
void deliverObservationsTimerFired(TimerBase*);
PerformanceEntryVector m_frameTimingBuffer;
unsigned m_frameTimingBufferSize;
PerformanceEntryVector m_resourceTimingBuffer;
unsigned m_resourceTimingBufferSize;
Member<PerformanceEntry> m_navigationTiming;
Member<UserTiming> m_userTiming;
double m_timeOrigin;
PerformanceEntryTypeMask m_observerFilterOptions;
PerformanceObservers m_observers;
PerformanceObservers m_activeObservers;
PerformanceObservers m_suspendedObservers;
Timer<PerformanceBase> m_deliverObservationsTimer;
};
} // namespace blink
#endif // PerformanceBase_h
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