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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /xpcom/threads/nsThreadManager.h | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
Diffstat (limited to 'xpcom/threads/nsThreadManager.h')
| -rw-r--r-- | xpcom/threads/nsThreadManager.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/xpcom/threads/nsThreadManager.h b/xpcom/threads/nsThreadManager.h new file mode 100644 index 000000000..64ccc9bc9 --- /dev/null +++ b/xpcom/threads/nsThreadManager.h @@ -0,0 +1,89 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef nsThreadManager_h__ +#define nsThreadManager_h__ + +#include "mozilla/Mutex.h" +#include "nsIThreadManager.h" +#include "nsRefPtrHashtable.h" +#include "nsThread.h" + +class nsIRunnable; + +class nsThreadManager : public nsIThreadManager +{ +public: + NS_DECL_ISUPPORTS + NS_DECL_NSITHREADMANAGER + + static nsThreadManager& get() + { + static nsThreadManager sInstance; + return sInstance; + } + + nsresult Init(); + + // Shutdown all threads. This function should only be called on the main + // thread of the application process. + void Shutdown(); + + // Called by nsThread to inform the ThreadManager it exists. This method + // must be called when the given thread is the current thread. + void RegisterCurrentThread(nsThread& aThread); + + // Called by nsThread to inform the ThreadManager it is going away. This + // method must be called when the given thread is the current thread. + void UnregisterCurrentThread(nsThread& aThread); + + // Returns the current thread. Returns null if OOM or if ThreadManager isn't + // initialized. + nsThread* GetCurrentThread(); + + // Returns the maximal number of threads that have been in existence + // simultaneously during the execution of the thread manager. + uint32_t GetHighestNumberOfThreads(); + + // This needs to be public in order to support static instantiation of this + // class with older compilers (e.g., egcs-2.91.66). + ~nsThreadManager() + { + } + +private: + nsThreadManager() + : mCurThreadIndex(0) + , mMainPRThread(nullptr) + , mLock("nsThreadManager.mLock") + , mInitialized(false) + , mCurrentNumberOfThreads(1) + , mHighestNumberOfThreads(1) + { + } + + nsRefPtrHashtable<nsPtrHashKey<PRThread>, nsThread> mThreadsByPRThread; + unsigned mCurThreadIndex; // thread-local-storage index + RefPtr<nsThread> mMainThread; + PRThread* mMainPRThread; + mozilla::OffTheBooksMutex mLock; // protects tables + mozilla::Atomic<bool> mInitialized; + + // The current number of threads + uint32_t mCurrentNumberOfThreads; + // The highest number of threads encountered so far during the session + uint32_t mHighestNumberOfThreads; +}; + +#define NS_THREADMANAGER_CID \ +{ /* 7a4204c6-e45a-4c37-8ebb-6709a22c917c */ \ + 0x7a4204c6, \ + 0xe45a, \ + 0x4c37, \ + {0x8e, 0xbb, 0x67, 0x09, 0xa2, 0x2c, 0x91, 0x7c} \ +} + +#endif // nsThreadManager_h__ |