1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/webrtc/LoadMonitor.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,63 @@
1.4 +/* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef _LOADMONITOR_H_
1.10 +#define _LOADMONITOR_H_
1.11 +
1.12 +#include "mozilla/Mutex.h"
1.13 +#include "mozilla/CondVar.h"
1.14 +#include "mozilla/RefPtr.h"
1.15 +#include "mozilla/Atomics.h"
1.16 +#include "nsAutoPtr.h"
1.17 +#include "nsCOMPtr.h"
1.18 +#include "nsIThread.h"
1.19 +#include "nsIObserver.h"
1.20 +
1.21 +namespace mozilla {
1.22 +class LoadInfoUpdateRunner;
1.23 +class LoadInfoCollectRunner;
1.24 +
1.25 +class LoadNotificationCallback
1.26 +{
1.27 +public:
1.28 + virtual void LoadChanged(float aSystemLoad, float aProcessLoad) = 0;
1.29 +};
1.30 +
1.31 +class LoadMonitor MOZ_FINAL : public nsIObserver
1.32 +{
1.33 +public:
1.34 + NS_DECL_THREADSAFE_ISUPPORTS
1.35 + NS_DECL_NSIOBSERVER
1.36 +
1.37 + LoadMonitor(int aLoadUpdateInterval);
1.38 + ~LoadMonitor();
1.39 +
1.40 + nsresult Init(nsRefPtr<LoadMonitor> &self);
1.41 + void SetLoadChangeCallback(LoadNotificationCallback* aCallback);
1.42 + void Shutdown();
1.43 + float GetSystemLoad();
1.44 + float GetProcessLoad();
1.45 +
1.46 + friend class LoadInfoCollectRunner;
1.47 +
1.48 +private:
1.49 +
1.50 + void SetProcessLoad(float load);
1.51 + void SetSystemLoad(float load);
1.52 + void FireCallbacks();
1.53 +
1.54 + int mLoadUpdateInterval;
1.55 + mozilla::Mutex mLock;
1.56 + mozilla::CondVar mCondVar;
1.57 + bool mShutdownPending;
1.58 + nsCOMPtr<nsIThread> mLoadInfoThread;
1.59 + float mSystemLoad;
1.60 + float mProcessLoad;
1.61 + LoadNotificationCallback* mLoadNotificationCallback;
1.62 +};
1.63 +
1.64 +} //namespace
1.65 +
1.66 +#endif /* _LOADMONITOR_H_ */
