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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_HangAnnotations_h
#define mozilla_HangAnnotations_h
#include <set>
#include "mozilla/HangTypes.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/Mutex.h"
#include "mozilla/Vector.h"
#include "nsString.h"
#include "nsTArray.h"
#include "mozilla/ipc/IPDLParamTraits.h"
namespace mozilla {
/**
* This class extends nsTArray<HangAnnotation> with some methods for adding
* annotations being reported by a registered hang Annotator.
*/
class BackgroundHangAnnotations : public nsTArray<HangAnnotation> {
public:
void AddAnnotation(const nsString& aName, const int32_t aData);
void AddAnnotation(const nsString& aName, const double aData);
void AddAnnotation(const nsString& aName, const nsString& aData);
void AddAnnotation(const nsString& aName, const nsCString& aData);
void AddAnnotation(const nsString& aName, const bool aData);
};
class BackgroundHangAnnotator {
public:
/**
* NB: This function is always called by the BackgroundHangMonitor thread.
* Plan accordingly.
*/
virtual void AnnotateHang(BackgroundHangAnnotations& aAnnotations) = 0;
};
class BackgroundHangAnnotators {
public:
BackgroundHangAnnotators();
~BackgroundHangAnnotators();
bool Register(BackgroundHangAnnotator& aAnnotator);
bool Unregister(BackgroundHangAnnotator& aAnnotator);
BackgroundHangAnnotations GatherAnnotations();
private:
Mutex mMutex MOZ_UNANNOTATED;
std::set<BackgroundHangAnnotator*> mAnnotators;
};
namespace ipc {
template <>
struct IPDLParamTraits<mozilla::BackgroundHangAnnotations>
: public IPDLParamTraits<nsTArray<mozilla::HangAnnotation>> {
typedef mozilla::BackgroundHangAnnotations paramType;
};
} // namespace ipc
} // namespace mozilla
#endif // mozilla_HangAnnotations_h
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