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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_performancemark_h___
#define mozilla_dom_performancemark_h___
#include "mozilla/dom/PerformanceEntry.h"
#include "mozilla/ProfilerMarkers.h"
namespace mozilla::dom {
struct PerformanceMarkOptions;
// http://www.w3.org/TR/user-timing/#performancemark
class PerformanceMark final : public PerformanceEntry {
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(PerformanceMark,
PerformanceEntry);
private:
PerformanceMark(nsISupports* aParent, const nsAString& aName,
DOMHighResTimeStamp aStartTime,
const JS::Handle<JS::Value>& aDetail,
DOMHighResTimeStamp aUnclampedStartTime);
public:
static already_AddRefed<PerformanceMark> Constructor(
const GlobalObject& aGlobal, const nsAString& aMarkName,
const PerformanceMarkOptions& aMarkOptions, ErrorResult& aRv);
static already_AddRefed<PerformanceMark> Constructor(
JSContext* aCx, nsIGlobalObject* aGlobal, const nsAString& aMarkName,
const PerformanceMarkOptions& aMarkOptions, ErrorResult& aRv);
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
virtual DOMHighResTimeStamp StartTime() const override { return mStartTime; }
virtual DOMHighResTimeStamp UnclampedStartTime() const override {
MOZ_ASSERT(profiler_thread_is_being_profiled_for_markers(),
"This should only be called when the Gecko Profiler is active.");
return mUnclampedStartTime;
}
void GetDetail(JSContext* aCx, JS::MutableHandle<JS::Value> aRetval);
size_t SizeOfIncludingThis(
mozilla::MallocSizeOf aMallocSizeOf) const override;
protected:
virtual ~PerformanceMark();
DOMHighResTimeStamp mStartTime;
private:
JS::Heap<JS::Value> mDetail;
// This is used by the Gecko Profiler only to be able to add precise markers.
// It's not exposed to JS
DOMHighResTimeStamp mUnclampedStartTime;
};
} // namespace mozilla::dom
#endif /* mozilla_dom_performancemark_h___ */
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