/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef mozilla_dom_Performance_h #define mozilla_dom_Performance_h #include "mozilla/Attributes.h" #include "mozilla/DOMEventTargetHelper.h" #include "nsCOMPtr.h" #include "nsDOMNavigationTiming.h" class nsITimedChannel; class nsIHttpChannel; namespace mozilla { class ErrorResult; namespace dom { class PerformanceEntry; class PerformanceNavigation; class PerformanceObserver; class PerformanceTiming; namespace workers { class WorkerPrivate; } // Base class for main-thread and worker Performance API class Performance : public DOMEventTargetHelper { public: NS_DECL_ISUPPORTS_INHERITED NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(Performance, DOMEventTargetHelper) static bool IsEnabled(JSContext* aCx, JSObject* aGlobal); static bool IsObserverEnabled(JSContext* aCx, JSObject* aGlobal); static already_AddRefed<Performance> CreateForMainThread(nsPIDOMWindowInner* aWindow, nsDOMNavigationTiming* aDOMTiming, nsITimedChannel* aChannel, Performance* aParentPerformance); static already_AddRefed<Performance> CreateForWorker(workers::WorkerPrivate* aWorkerPrivate); JSObject* WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto) override; void GetEntries(nsTArray<RefPtr<PerformanceEntry>>& aRetval); void GetEntriesByType(const nsAString& aEntryType, nsTArray<RefPtr<PerformanceEntry>>& aRetval); void GetEntriesByName(const nsAString& aName, const Optional<nsAString>& aEntryType, nsTArray<RefPtr<PerformanceEntry>>& aRetval); virtual void AddEntry(nsIHttpChannel* channel, nsITimedChannel* timedChannel) = 0; void ClearResourceTimings(); virtual DOMHighResTimeStamp Now() const = 0; void Mark(const nsAString& aName, ErrorResult& aRv); void ClearMarks(const Optional<nsAString>& aName); void Measure(const nsAString& aName, const Optional<nsAString>& aStartMark, const Optional<nsAString>& aEndMark, ErrorResult& aRv); void ClearMeasures(const Optional<nsAString>& aName); void SetResourceTimingBufferSize(uint64_t aMaxSize); void AddObserver(PerformanceObserver* aObserver); void RemoveObserver(PerformanceObserver* aObserver); void NotifyObservers(); void CancelNotificationObservers(); virtual PerformanceTiming* Timing() = 0; virtual PerformanceNavigation* Navigation() = 0; IMPL_EVENT_HANDLER(resourcetimingbufferfull) virtual void GetMozMemory(JSContext *aCx, JS::MutableHandle<JSObject*> aObj) = 0; virtual nsDOMNavigationTiming* GetDOMTiming() const = 0; virtual nsITimedChannel* GetChannel() const = 0; virtual Performance* GetParentPerformance() const = 0; protected: Performance(); explicit Performance(nsPIDOMWindowInner* aWindow); virtual ~Performance(); virtual void InsertUserEntry(PerformanceEntry* aEntry); void InsertResourceEntry(PerformanceEntry* aEntry); void ClearUserEntries(const Optional<nsAString>& aEntryName, const nsAString& aEntryType); DOMHighResTimeStamp ResolveTimestampFromName(const nsAString& aName, ErrorResult& aRv); virtual nsISupports* GetAsISupports() = 0; virtual void DispatchBufferFullEvent() = 0; virtual TimeStamp CreationTimeStamp() const = 0; virtual DOMHighResTimeStamp CreationTime() const = 0; virtual bool IsPerformanceTimingAttribute(const nsAString& aName) = 0; virtual DOMHighResTimeStamp GetPerformanceTimingFromString(const nsAString& aTimingName) = 0; bool IsResourceEntryLimitReached() const { return mResourceEntries.Length() >= mResourceTimingBufferSize; } void LogEntry(PerformanceEntry* aEntry, const nsACString& aOwner) const; void TimingNotification(PerformanceEntry* aEntry, const nsACString& aOwner, uint64_t epoch); void RunNotificationObserversTask(); void QueueEntry(PerformanceEntry* aEntry); DOMHighResTimeStamp RoundTime(double aTime) const; nsTObserverArray<PerformanceObserver*> mObservers; private: nsTArray<RefPtr<PerformanceEntry>> mUserEntries; nsTArray<RefPtr<PerformanceEntry>> mResourceEntries; uint64_t mResourceTimingBufferSize; static const uint64_t kDefaultResourceTimingBufferSize = 150; bool mPendingNotificationObserversTask; }; } // namespace dom } // namespace mozilla #endif // mozilla_dom_Performance_h