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50 lines
1.7 KiB
C++
50 lines
1.7 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_TimelineMarker_h_
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#define mozilla_TimelineMarker_h_
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#include "AbstractTimelineMarker.h"
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#include "js/RootingAPI.h"
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namespace mozilla {
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// Objects of this type can be added to the timeline if there is an interested
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// consumer. The class can also be subclassed to let a given marker creator
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// provide custom details.
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class TimelineMarker : public AbstractTimelineMarker
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{
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public:
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TimelineMarker(const char* aName,
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MarkerTracingType aTracingType,
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MarkerStackRequest aStackRequest = MarkerStackRequest::STACK);
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TimelineMarker(const char* aName,
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const TimeStamp& aTime,
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MarkerTracingType aTracingType,
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MarkerStackRequest aStackRequest = MarkerStackRequest::STACK);
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virtual void AddDetails(JSContext* aCx, dom::ProfileTimelineMarker& aMarker) override;
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virtual JSObject* GetStack() override;
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protected:
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void CaptureStack();
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private:
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// While normally it is not a good idea to make a persistent root,
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// in this case changing nsDocShell to participate in cycle
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// collection was deemed too invasive, and the markers are only held
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// here temporarily to boot.
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JS::PersistentRooted<JSObject*> mStackTrace;
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void CaptureStackIfNecessary(MarkerTracingType aTracingType,
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MarkerStackRequest aStackRequest);
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};
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} // namespace mozilla
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#endif /* mozilla_TimelineMarker_h_ */
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