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/* -*- 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 PerformanceService;
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);
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;
DOMHighResTimeStamp TimeOrigin();
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;
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)
{
return false;
}
virtual DOMHighResTimeStamp
GetPerformanceTimingFromString(const nsAString& aTimingName)
{
return 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;
RefPtr<PerformanceService> mPerformanceService;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_Performance_h
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