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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
* Copyright (C) 2012 Intel Inc. All rights reserved.
* Copyright (C) 2016 Apple 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.
*/
#pragma once
#include "ContextDestructionObserver.h"
#include "DOMHighResTimeStamp.h"
#include "EventTarget.h"
#include "EventTargetInterfaces.h"
#include "ReducedResolutionSeconds.h"
#include "ScriptExecutionContext.h"
#include "Timer.h"
#include <memory>
#include <wtf/ContinuousTime.h>
#include <wtf/ListHashSet.h>
#include <wtf/MonotonicTime.h>
namespace JSC {
class JSGlobalObject;
}
namespace WebCore {
class CachedResource;
class Document;
class DocumentLoadTiming;
class DocumentLoader;
class EventCounts;
class LargestContentfulPaint;
class NetworkLoadMetrics;
class PerformanceUserTiming;
class PerformanceEntry;
class PerformanceMark;
class PerformanceMeasure;
class PerformanceNavigation;
class PerformanceNavigationTiming;
class PerformanceObserver;
class PerformancePaintTiming;
class PerformanceTiming;
class ResourceResponse;
class ResourceTiming;
class ScriptExecutionContext;
enum class EventType : uint16_t;
struct PerformanceEventTimingCandidate;
struct PerformanceMarkOptions;
struct PerformanceMeasureOptions;
template<typename> class ExceptionOr;
class Performance final : public RefCounted<Performance>, public ContextDestructionObserver, public EventTarget {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(Performance);
public:
static Ref<Performance> create(ScriptExecutionContext* context, MonotonicTime timeOrigin) { return adoptRef(*new Performance(context, timeOrigin)); }
~Performance();
DOMHighResTimeStamp now() const;
DOMHighResTimeStamp timeOrigin() const;
ReducedResolutionSeconds nowInReducedResolutionSeconds() const;
PerformanceNavigation* navigation();
PerformanceTiming* timing();
EventCounts* eventCounts();
uint64_t interactionCount();
Vector<Ref<PerformanceEntry>> getEntries() const;
Vector<Ref<PerformanceEntry>> getEntriesByType(const String& entryType) const;
Vector<Ref<PerformanceEntry>> getEntriesByName(const String& name, const String& entryType) const;
void appendBufferedEntriesByType(const String& entryType, Vector<Ref<PerformanceEntry>>&, PerformanceObserver&) const;
void countEvent(EventType);
void processEventEntry(const PerformanceEventTimingCandidate&);
void clearResourceTimings();
void setResourceTimingBufferSize(unsigned);
ExceptionOr<Ref<PerformanceMark>> mark(JSC::JSGlobalObject&, const String& markName, std::optional<PerformanceMarkOptions>&&);
void clearMarks(const String& markName);
using StartOrMeasureOptions = Variant<String, PerformanceMeasureOptions>;
ExceptionOr<Ref<PerformanceMeasure>> measure(JSC::JSGlobalObject&, const String& measureName, std::optional<StartOrMeasureOptions>&&, const String& endMark);
void clearMeasures(const String& measureName);
void addNavigationTiming(DocumentLoader&, Document&, CachedResource&, const DocumentLoadTiming&, const NetworkLoadMetrics&);
void documentLoadFinished(const NetworkLoadMetrics&);
void navigationFinished(MonotonicTime loadEventEnd);
void addResourceTiming(ResourceTiming&&);
void reportFirstContentfulPaint(DOMHighResTimeStamp);
void enqueueLargestContentfulPaint(Ref<LargestContentfulPaint>&&);
void removeAllObservers();
void registerPerformanceObserver(PerformanceObserver&);
void unregisterPerformanceObserver(PerformanceObserver&);
static void allowHighPrecisionTime();
static Seconds timeResolution();
static Seconds reduceTimeResolution(Seconds);
Seconds relativeTimeFromTimeOriginInReducedResolutionSeconds(MonotonicTime) const;
DOMHighResTimeStamp relativeTimeFromTimeOriginInReducedResolution(MonotonicTime) const;
MonotonicTime monotonicTimeFromRelativeTime(DOMHighResTimeStamp) const;
ScriptExecutionContext* scriptExecutionContext() const final;
using RefCounted::ref;
using RefCounted::deref;
void scheduleTaskIfNeeded();
PerformanceNavigationTiming* navigationTiming() { return m_navigationTiming.get(); }
private:
Performance(ScriptExecutionContext*, MonotonicTime timeOrigin);
void contextDestroyed() override;
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::Performance; }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
bool isResourceTimingBufferFull() const;
void resourceTimingBufferFullTimerFired();
void queueEntry(PerformanceEntry&);
const std::unique_ptr<EventCounts> m_eventCounts;
mutable RefPtr<PerformanceNavigation> m_navigation;
mutable RefPtr<PerformanceTiming> m_timing;
// https://w3c.github.io/resource-timing/#sec-extensions-performance-interface recommends initial buffer size of 250.
Vector<Ref<PerformanceEntry>> m_resourceTimingBuffer;
Timer m_resourceTimingBufferFullTimer;
Vector<Ref<PerformanceEntry>> m_backupResourceTimingBuffer;
RefPtr<PerformanceEntry> m_firstInput;
Vector<Ref<PerformanceEntry>> m_eventTimingBuffer;
// Sizes recommended by https://w3c.github.io/timing-entrytypes-registry/#registry:
unsigned m_eventTimingBufferSize { 150 };
unsigned m_resourceTimingBufferSize { 250 };
// https://w3c.github.io/resource-timing/#dfn-resource-timing-buffer-full-flag
bool m_resourceTimingBufferFullFlag { false };
bool m_waitingForBackupBufferToBeProcessed { false };
bool m_hasScheduledDeliveryTask { false };
MonotonicTime m_timeOrigin;
ContinuousTime m_continuousTimeOrigin;
RefPtr<PerformanceNavigationTiming> m_navigationTiming;
RefPtr<PerformancePaintTiming> m_firstContentfulPaint;
RefPtr<PerformanceEntry> m_largestContentfulPaint;
std::unique_ptr<PerformanceUserTiming> m_userTiming;
ListHashSet<RefPtr<PerformanceObserver>> m_observers;
};
}
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