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63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _LOADMONITOR_H_
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#define _LOADMONITOR_H_
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#include "mozilla/Mutex.h"
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#include "mozilla/CondVar.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/Atomics.h"
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#include "nsAutoPtr.h"
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#include "nsCOMPtr.h"
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#include "nsIThread.h"
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#include "nsIObserver.h"
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namespace mozilla {
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class LoadInfoCollectRunner;
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class LoadNotificationCallback
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{
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public:
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virtual void LoadChanged(float aSystemLoad, float aProcessLoad) = 0;
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};
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class LoadMonitor final : public nsIObserver
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{
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public:
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIOBSERVER
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explicit LoadMonitor(int aLoadUpdateInterval);
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nsresult Init(RefPtr<LoadMonitor> &self);
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void SetLoadChangeCallback(LoadNotificationCallback* aCallback);
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void Shutdown();
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float GetSystemLoad();
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float GetProcessLoad();
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friend class LoadInfoCollectRunner;
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private:
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~LoadMonitor();
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void SetProcessLoad(float load);
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void SetSystemLoad(float load);
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void FireCallbacks();
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int mLoadUpdateInterval;
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mozilla::Mutex mLock;
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mozilla::CondVar mCondVar;
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bool mShutdownPending;
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nsCOMPtr<nsIThread> mLoadInfoThread;
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float mSystemLoad;
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float mProcessLoad;
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LoadNotificationCallback* mLoadNotificationCallback;
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};
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} //namespace
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#endif /* _LOADMONITOR_H_ */
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