Fri, 16 Jan 2015 04:50:19 +0100
Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32
michael@0 | 1 | /* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
michael@0 | 5 | |
michael@0 | 6 | #ifndef _LOADMONITOR_H_ |
michael@0 | 7 | #define _LOADMONITOR_H_ |
michael@0 | 8 | |
michael@0 | 9 | #include "mozilla/Mutex.h" |
michael@0 | 10 | #include "mozilla/CondVar.h" |
michael@0 | 11 | #include "mozilla/RefPtr.h" |
michael@0 | 12 | #include "mozilla/Atomics.h" |
michael@0 | 13 | #include "nsAutoPtr.h" |
michael@0 | 14 | #include "nsCOMPtr.h" |
michael@0 | 15 | #include "nsIThread.h" |
michael@0 | 16 | #include "nsIObserver.h" |
michael@0 | 17 | |
michael@0 | 18 | namespace mozilla { |
michael@0 | 19 | class LoadInfoUpdateRunner; |
michael@0 | 20 | class LoadInfoCollectRunner; |
michael@0 | 21 | |
michael@0 | 22 | class LoadNotificationCallback |
michael@0 | 23 | { |
michael@0 | 24 | public: |
michael@0 | 25 | virtual void LoadChanged(float aSystemLoad, float aProcessLoad) = 0; |
michael@0 | 26 | }; |
michael@0 | 27 | |
michael@0 | 28 | class LoadMonitor MOZ_FINAL : public nsIObserver |
michael@0 | 29 | { |
michael@0 | 30 | public: |
michael@0 | 31 | NS_DECL_THREADSAFE_ISUPPORTS |
michael@0 | 32 | NS_DECL_NSIOBSERVER |
michael@0 | 33 | |
michael@0 | 34 | LoadMonitor(int aLoadUpdateInterval); |
michael@0 | 35 | ~LoadMonitor(); |
michael@0 | 36 | |
michael@0 | 37 | nsresult Init(nsRefPtr<LoadMonitor> &self); |
michael@0 | 38 | void SetLoadChangeCallback(LoadNotificationCallback* aCallback); |
michael@0 | 39 | void Shutdown(); |
michael@0 | 40 | float GetSystemLoad(); |
michael@0 | 41 | float GetProcessLoad(); |
michael@0 | 42 | |
michael@0 | 43 | friend class LoadInfoCollectRunner; |
michael@0 | 44 | |
michael@0 | 45 | private: |
michael@0 | 46 | |
michael@0 | 47 | void SetProcessLoad(float load); |
michael@0 | 48 | void SetSystemLoad(float load); |
michael@0 | 49 | void FireCallbacks(); |
michael@0 | 50 | |
michael@0 | 51 | int mLoadUpdateInterval; |
michael@0 | 52 | mozilla::Mutex mLock; |
michael@0 | 53 | mozilla::CondVar mCondVar; |
michael@0 | 54 | bool mShutdownPending; |
michael@0 | 55 | nsCOMPtr<nsIThread> mLoadInfoThread; |
michael@0 | 56 | float mSystemLoad; |
michael@0 | 57 | float mProcessLoad; |
michael@0 | 58 | LoadNotificationCallback* mLoadNotificationCallback; |
michael@0 | 59 | }; |
michael@0 | 60 | |
michael@0 | 61 | } //namespace |
michael@0 | 62 | |
michael@0 | 63 | #endif /* _LOADMONITOR_H_ */ |