forked from mirrors/gecko-dev
68 lines
2.4 KiB
C++
68 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_performancemark_h___
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#define mozilla_dom_performancemark_h___
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#include "mozilla/dom/PerformanceEntry.h"
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#include "mozilla/ProfilerMarkers.h"
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namespace mozilla::dom {
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struct PerformanceMarkOptions;
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// http://www.w3.org/TR/user-timing/#performancemark
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class PerformanceMark final : public PerformanceEntry {
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(PerformanceMark,
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PerformanceEntry);
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private:
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PerformanceMark(nsISupports* aParent, const nsAString& aName,
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DOMHighResTimeStamp aStartTime,
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const JS::Handle<JS::Value>& aDetail,
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DOMHighResTimeStamp aUnclampedStartTime);
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public:
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static already_AddRefed<PerformanceMark> Constructor(
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const GlobalObject& aGlobal, const nsAString& aMarkName,
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const PerformanceMarkOptions& aMarkOptions, ErrorResult& aRv);
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static already_AddRefed<PerformanceMark> Constructor(
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JSContext* aCx, nsIGlobalObject* aGlobal, const nsAString& aMarkName,
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const PerformanceMarkOptions& aMarkOptions, ErrorResult& aRv);
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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virtual DOMHighResTimeStamp StartTime() const override { return mStartTime; }
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virtual DOMHighResTimeStamp UnclampedStartTime() const override {
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MOZ_ASSERT(profiler_thread_is_being_profiled_for_markers(),
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"This should only be called when the Gecko Profiler is active.");
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return mUnclampedStartTime;
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}
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void GetDetail(JSContext* aCx, JS::MutableHandle<JS::Value> aRetval);
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size_t SizeOfIncludingThis(
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mozilla::MallocSizeOf aMallocSizeOf) const override;
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protected:
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virtual ~PerformanceMark();
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DOMHighResTimeStamp mStartTime;
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private:
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JS::Heap<JS::Value> mDetail;
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// This is used by the Gecko Profiler only to be able to add precise markers.
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// It's not exposed to JS
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DOMHighResTimeStamp mUnclampedStartTime;
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};
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} // namespace mozilla::dom
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#endif /* mozilla_dom_performancemark_h___ */
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