gecko/content/media/webrtc/LoadManager.h

64 lines
2.0 KiB
C++

/* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 _LOADMANAGER_H_
#define _LOADMANAGER_H_
#include "LoadMonitor.h"
#include "webrtc/common_types.h"
#include "webrtc/video_engine/include/vie_base.h"
#include "mozilla/TimeStamp.h"
#include "nsTArray.h"
extern PRLogModuleInfo *gLoadManagerLog;
namespace mozilla {
class LoadManager : public LoadNotificationCallback,
public webrtc::CPULoadStateCallbackInvoker,
public webrtc::CpuOveruseObserver
{
public:
LoadManager(int aLoadMeasurementInterval,
int aAveragingMeasurements,
float aHighLoadThreshold,
float aLowLoadThreshold);
~LoadManager();
// LoadNotificationCallback interface
virtual void LoadChanged(float aSystemLoad, float aProcessLoad) MOZ_OVERRIDE;
// CpuOveruseObserver interface
// Called as soon as an overuse is detected.
virtual void OveruseDetected() MOZ_OVERRIDE;
// Called periodically when the system is not overused any longer.
virtual void NormalUsage() MOZ_OVERRIDE;
// CPULoadStateCallbackInvoker interface
virtual void AddObserver(webrtc::CPULoadStateObserver * aObserver) MOZ_OVERRIDE;
virtual void RemoveObserver(webrtc::CPULoadStateObserver * aObserver) MOZ_OVERRIDE;
private:
void LoadHasChanged();
nsRefPtr<LoadMonitor> mLoadMonitor;
float mLastSystemLoad;
float mLoadSum;
int mLoadSumMeasurements;
// Set when overuse was signaled to us, and hasn't been un-signaled yet.
bool mOveruseActive;
// Load measurement settings
int mLoadMeasurementInterval;
int mAveragingMeasurements;
float mHighLoadThreshold;
float mLowLoadThreshold;
webrtc::CPULoadState mCurrentState;
nsTArray<webrtc::CPULoadStateObserver*> mObservers;
};
} //namespace
#endif /* _LOADMANAGER_H_ */