michael@0: /* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef _LOADMANAGER_H_
michael@0: #define _LOADMANAGER_H_
michael@0: 
michael@0: #include "LoadMonitor.h"
michael@0: #include "webrtc/common_types.h"
michael@0: #include "webrtc/video_engine/include/vie_base.h"
michael@0: #include "mozilla/TimeStamp.h"
michael@0: #include "nsTArray.h"
michael@0: 
michael@0: extern PRLogModuleInfo *gLoadManagerLog;
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: class LoadManager : public LoadNotificationCallback,
michael@0:                     public webrtc::CPULoadStateCallbackInvoker,
michael@0:                     public webrtc::CpuOveruseObserver
michael@0: {
michael@0: public:
michael@0:     LoadManager(int aLoadMeasurementInterval,
michael@0:                 int aAveragingMeasurements,
michael@0:                 float aHighLoadThreshold,
michael@0:                 float aLowLoadThreshold);
michael@0:     ~LoadManager();
michael@0: 
michael@0:     // LoadNotificationCallback interface
michael@0:     virtual void LoadChanged(float aSystemLoad, float aProcessLoad) MOZ_OVERRIDE;
michael@0:     // CpuOveruseObserver interface
michael@0:     // Called as soon as an overuse is detected.
michael@0:     virtual void OveruseDetected() MOZ_OVERRIDE;
michael@0:     // Called periodically when the system is not overused any longer.
michael@0:     virtual void NormalUsage() MOZ_OVERRIDE;
michael@0:     // CPULoadStateCallbackInvoker interface
michael@0:     virtual void AddObserver(webrtc::CPULoadStateObserver * aObserver) MOZ_OVERRIDE;
michael@0:     virtual void RemoveObserver(webrtc::CPULoadStateObserver * aObserver) MOZ_OVERRIDE;
michael@0: 
michael@0: private:
michael@0:     void LoadHasChanged();
michael@0: 
michael@0:     nsRefPtr<LoadMonitor> mLoadMonitor;
michael@0:     float mLoadSum;
michael@0:     int   mLoadSumMeasurements;
michael@0:     // Set when overuse was signaled to us, and hasn't been un-signaled yet.
michael@0:     bool  mOveruseActive;
michael@0:     // Load measurement settings
michael@0:     int mLoadMeasurementInterval;
michael@0:     int mAveragingMeasurements;
michael@0:     float mHighLoadThreshold;
michael@0:     float mLowLoadThreshold;
michael@0: 
michael@0:     webrtc::CPULoadState mCurrentState;
michael@0: 
michael@0:     nsTArray<webrtc::CPULoadStateObserver*> mObservers;
michael@0: };
michael@0: 
michael@0: } //namespace
michael@0: 
michael@0: #endif /* _LOADMANAGER_H_ */