зеркало из https://github.com/mozilla/gecko-dev.git
105 строки
2.8 KiB
C++
105 строки
2.8 KiB
C++
/* -*- 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_HangAnnotations_h
|
|
#define mozilla_HangAnnotations_h
|
|
|
|
#include <set>
|
|
|
|
#include "mozilla/MemoryReporting.h"
|
|
#include "mozilla/Mutex.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
#include "mozilla/Vector.h"
|
|
#include "nsString.h"
|
|
|
|
namespace mozilla {
|
|
namespace HangMonitor {
|
|
|
|
/**
|
|
* This class declares an abstraction for a data type that encapsulates all
|
|
* of the annotations being reported by a registered hang Annotator.
|
|
*/
|
|
class HangAnnotations
|
|
{
|
|
public:
|
|
virtual ~HangAnnotations() {}
|
|
|
|
virtual void AddAnnotation(const nsAString& aName, const int32_t aData) = 0;
|
|
virtual void AddAnnotation(const nsAString& aName, const double aData) = 0;
|
|
virtual void AddAnnotation(const nsAString& aName, const nsAString& aData) = 0;
|
|
virtual void AddAnnotation(const nsAString& aName, const nsACString& aData) = 0;
|
|
virtual void AddAnnotation(const nsAString& aName, const bool aData) = 0;
|
|
|
|
class Enumerator
|
|
{
|
|
public:
|
|
virtual ~Enumerator() {}
|
|
virtual bool Next(nsAString& aOutName, nsAString& aOutValue) = 0;
|
|
};
|
|
|
|
virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const = 0;
|
|
virtual bool IsEmpty() const = 0;
|
|
virtual UniquePtr<Enumerator> GetEnumerator() = 0;
|
|
};
|
|
|
|
typedef UniquePtr<HangAnnotations> HangAnnotationsPtr;
|
|
typedef Vector<HangAnnotationsPtr> HangAnnotationsVector;
|
|
|
|
class Annotator
|
|
{
|
|
public:
|
|
/**
|
|
* NB: This function is always called by the HangMonitor thread.
|
|
* Plan accordingly.
|
|
*/
|
|
virtual void AnnotateHang(HangAnnotations& aAnnotations) = 0;
|
|
};
|
|
|
|
/**
|
|
* Registers an Annotator to be called when a hang is detected.
|
|
* @param aAnnotator Reference to an object that implements the
|
|
* HangMonitor::Annotator interface.
|
|
*/
|
|
void RegisterAnnotator(Annotator& aAnnotator);
|
|
|
|
/**
|
|
* Registers an Annotator that was previously registered via RegisterAnnotator.
|
|
* @param aAnnotator Reference to an object that implements the
|
|
* HangMonitor::Annotator interface.
|
|
*/
|
|
void UnregisterAnnotator(Annotator& aAnnotator);
|
|
|
|
/**
|
|
* Gathers annotations. This function should be called by ChromeHangs.
|
|
* @return UniquePtr to HangAnnotations object or nullptr if none.
|
|
*/
|
|
HangAnnotationsPtr ChromeHangAnnotatorCallout();
|
|
|
|
namespace Observer {
|
|
|
|
class Annotators
|
|
{
|
|
public:
|
|
Annotators();
|
|
~Annotators();
|
|
|
|
bool Register(Annotator& aAnnotator);
|
|
bool Unregister(Annotator& aAnnotator);
|
|
|
|
HangAnnotationsPtr GatherAnnotations();
|
|
|
|
private:
|
|
Mutex mMutex;
|
|
std::set<Annotator*> mAnnotators;
|
|
};
|
|
|
|
} // namespace Observer
|
|
|
|
} // namespace HangMonitor
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_HangAnnotations_h
|