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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_AutoTimelineMarker_h_
#define mozilla_AutoTimelineMarker_h_
#include "mozilla/GuardObjects.h"
#include "mozilla/RefPtr.h"
class nsIDocShell;
namespace mozilla {
// # AutoTimelineMarker
//
// An RAII class to trace some task in the platform by adding a start and end
// timeline marker pair. These markers are then rendered in the devtools'
// performance tool's waterfall graph.
//
// Example usage:
//
// {
// AutoTimelineMarker marker(mDocShell, "Parse CSS");
// nsresult rv = ParseTheCSSFile(mFile);
// ...
// }
class MOZ_RAII AutoTimelineMarker
{
MOZ_DECL_USE_GUARD_OBJECT_NOTIFIER;
// The name of the marker we are adding.
const char* mName;
// The docshell that is associated with this marker.
RefPtr<nsIDocShell> mDocShell;
public:
AutoTimelineMarker(nsIDocShell* aDocShell,
const char* aName MOZ_GUARD_OBJECT_NOTIFIER_PARAM);
~AutoTimelineMarker();
AutoTimelineMarker(const AutoTimelineMarker& aOther) = delete;
void operator=(const AutoTimelineMarker& aOther) = delete;
};
} // namespace mozilla
#endif /* mozilla_AutoTimelineMarker_h_ */
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