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41 lines
1.3 KiB
C++
41 lines
1.3 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_DocLoadingTimelineMarker_h_
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#define mozilla_DocLoadingTimelineMarker_h_
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#include "TimelineMarker.h"
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#include "mozilla/dom/ProfileTimelineMarkerBinding.h"
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namespace mozilla {
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class DocLoadingTimelineMarker : public TimelineMarker
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{
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public:
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explicit DocLoadingTimelineMarker(const char* aName)
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: TimelineMarker(aName, MarkerTracingType::TIMESTAMP)
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, mUnixTime(PR_Now())
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{}
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virtual void AddDetails(JSContext* aCx, dom::ProfileTimelineMarker& aMarker) override
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{
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TimelineMarker::AddDetails(aCx, aMarker);
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aMarker.mUnixTime.Construct(mUnixTime);
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}
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private:
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// Certain consumers might use Date.now() or similar for tracing time.
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// However, TimelineMarkers use process creation as an epoch, which provides
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// more precision. To allow syncing, attach an additional unix timestamp.
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// Using this instead of `AbstractTimelineMarker::GetTime()'s` timestamp
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// is strongly discouraged.
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PRTime mUnixTime;
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};
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} // namespace mozilla
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#endif // mozilla_DocLoadingTimelineMarker_h_
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