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111 lines
3.9 KiB
C++
111 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla code.
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*
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* The Initial Developer of the Original Code is Google Inc.
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* Portions created by the Initial Developer are Copyright (C) 2006
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Darin Fisher <darin@meer.net>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsThreadManager_h__
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#define nsThreadManager_h__
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#include "mozilla/Mutex.h"
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#include "nsIThreadManager.h"
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#include "nsRefPtrHashtable.h"
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#include "nsThread.h"
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class nsIRunnable;
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class nsThreadManager : public nsIThreadManager
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSITHREADMANAGER
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static nsThreadManager *get() {
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return &sInstance;
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}
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nsresult Init();
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// Shutdown all threads. This function should only be called on the main
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// thread of the application process.
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void Shutdown();
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// Called by nsThread to inform the ThreadManager it exists. This method
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// must be called when the given thread is the current thread.
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void RegisterCurrentThread(nsThread *thread);
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// Called by nsThread to inform the ThreadManager it is going away. This
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// method must be called when the given thread is the current thread.
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void UnregisterCurrentThread(nsThread *thread);
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// Returns the current thread. Returns null if OOM or if ThreadManager isn't
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// initialized.
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nsThread *GetCurrentThread();
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// This needs to be public in order to support static instantiation of this
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// class with older compilers (e.g., egcs-2.91.66).
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~nsThreadManager() {}
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private:
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nsThreadManager()
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: mCurThreadIndex(0)
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, mMainPRThread(nsnull)
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, mLock(nsnull)
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, mInitialized(false) {
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}
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static nsThreadManager sInstance;
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nsRefPtrHashtable<nsPtrHashKey<PRThread>, nsThread> mThreadsByPRThread;
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PRUintn mCurThreadIndex; // thread-local-storage index
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nsRefPtr<nsThread> mMainThread;
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PRThread *mMainPRThread;
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// This is a pointer in order to allow creating nsThreadManager from
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// the static context in debug builds.
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nsAutoPtr<mozilla::Mutex> mLock; // protects tables
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bool mInitialized;
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};
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#define NS_THREADMANAGER_CLASSNAME "nsThreadManager"
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#define NS_THREADMANAGER_CID \
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{ /* 7a4204c6-e45a-4c37-8ebb-6709a22c917c */ \
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0x7a4204c6, \
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0xe45a, \
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0x4c37, \
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{0x8e, 0xbb, 0x67, 0x09, 0xa2, 0x2c, 0x91, 0x7c} \
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}
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#endif // nsThreadManager_h__
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