The Tor Browser / file comparison
comparison: xpcom/threads/nsThreadManager.h
xpcom/threads/nsThreadManager.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:49f7ca8488e7 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef nsThreadManager_h__ | |
| 8 #define nsThreadManager_h__ | |
| 9 | |
| 10 #include "mozilla/Mutex.h" | |
| 11 #include "nsIThreadManager.h" | |
| 12 #include "nsRefPtrHashtable.h" | |
| 13 #include "nsThread.h" | |
| 14 | |
| 15 class nsIRunnable; | |
| 16 | |
| 17 class nsThreadManager : public nsIThreadManager | |
| 18 { | |
| 19 public: | |
| 20 NS_DECL_ISUPPORTS | |
| 21 NS_DECL_NSITHREADMANAGER | |
| 22 | |
| 23 static nsThreadManager *get() { | |
| 24 static nsThreadManager sInstance; | |
| 25 return &sInstance; | |
| 26 } | |
| 27 | |
| 28 nsresult Init(); | |
| 29 | |
| 30 // Shutdown all threads. This function should only be called on the main | |
| 31 // thread of the application process. | |
| 32 void Shutdown(); | |
| 33 | |
| 34 // Called by nsThread to inform the ThreadManager it exists. This method | |
| 35 // must be called when the given thread is the current thread. | |
| 36 void RegisterCurrentThread(nsThread *thread); | |
| 37 | |
| 38 // Called by nsThread to inform the ThreadManager it is going away. This | |
| 39 // method must be called when the given thread is the current thread. | |
| 40 void UnregisterCurrentThread(nsThread *thread); | |
| 41 | |
| 42 // Returns the current thread. Returns null if OOM or if ThreadManager isn't | |
| 43 // initialized. | |
| 44 nsThread *GetCurrentThread(); | |
| 45 | |
| 46 // Returns the maximal number of threads that have been in existence | |
| 47 // simultaneously during the execution of the thread manager. | |
| 48 uint32_t GetHighestNumberOfThreads(); | |
| 49 | |
| 50 // This needs to be public in order to support static instantiation of this | |
| 51 // class with older compilers (e.g., egcs-2.91.66). | |
| 52 ~nsThreadManager() {} | |
| 53 | |
| 54 private: | |
| 55 nsThreadManager() | |
| 56 : mCurThreadIndex(0) | |
| 57 , mMainPRThread(nullptr) | |
| 58 , mLock(nullptr) | |
| 59 , mInitialized(false) | |
| 60 , mCurrentNumberOfThreads(1) | |
| 61 , mHighestNumberOfThreads(1) { | |
| 62 } | |
| 63 | |
| 64 nsRefPtrHashtable<nsPtrHashKey<PRThread>, nsThread> mThreadsByPRThread; | |
| 65 unsigned mCurThreadIndex; // thread-local-storage index | |
| 66 nsRefPtr<nsThread> mMainThread; | |
| 67 PRThread *mMainPRThread; | |
| 68 // This is a pointer in order to allow creating nsThreadManager from | |
| 69 // the static context in debug builds. | |
| 70 nsAutoPtr<mozilla::Mutex> mLock; // protects tables | |
| 71 bool mInitialized; | |
| 72 | |
| 73 // The current number of threads | |
| 74 uint32_t mCurrentNumberOfThreads; | |
| 75 // The highest number of threads encountered so far during the session | |
| 76 uint32_t mHighestNumberOfThreads; | |
| 77 }; | |
| 78 | |
| 79 #define NS_THREADMANAGER_CID \ | |
| 80 { /* 7a4204c6-e45a-4c37-8ebb-6709a22c917c */ \ | |
| 81 0x7a4204c6, \ | |
| 82 0xe45a, \ | |
| 83 0x4c37, \ | |
| 84 {0x8e, 0xbb, 0x67, 0x09, 0xa2, 0x2c, 0x91, 0x7c} \ | |
| 85 } | |
| 86 | |
| 87 #endif // nsThreadManager_h__ |
