mirror of
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147 lines
4.7 KiB
C++
147 lines
4.7 KiB
C++
/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*- */
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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 worker threads.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Vladimir Vukicevic <vladimir@pobox.com> (Original Author)
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* Ben Turner <bent.mozilla@gmail.com>
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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 __NSDOMTHREADSERVICE_H__
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#define __NSDOMTHREADSERVICE_H__
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// Interfaces
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#include "nsIEventTarget.h"
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#include "nsIObserver.h"
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#include "nsIThreadPool.h"
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#include "nsIDOMThreads.h"
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// Other includes
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#include "jsapi.h"
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#include "nsAutoPtr.h"
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#include "nsCOMPtr.h"
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#include "nsRefPtrHashtable.h"
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#include "nsTPtrArray.h"
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#include "prmon.h"
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#include "prlog.h"
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#ifdef PR_LOGGING
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extern PRLogModuleInfo* gDOMThreadsLog;
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#endif
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class nsDOMWorkerPool;
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class nsDOMWorkerRunnable;
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class nsDOMWorkerThread;
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class nsDOMWorkerTimeout;
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class nsIJSRuntimeService;
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class nsIScriptGlobalObject;
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class nsIThreadJSContextStack;
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class nsIXPConnect;
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class nsIXPCSecurityManager;
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class nsDOMThreadService : public nsIEventTarget,
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public nsIObserver,
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public nsIThreadPoolListener,
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public nsIDOMThreadService
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{
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friend class nsDOMWorkerPool;
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friend class nsDOMWorkerRunnable;
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friend class nsDOMWorkerThread;
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friend class nsDOMWorkerTimeout;
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friend class nsDOMWorkerXHR;
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friend class nsDOMWorkerXHRProxy;
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friend class nsLayoutStatics;
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIEVENTTARGET
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NS_DECL_NSIOBSERVER
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NS_DECL_NSITHREADPOOLLISTENER
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NS_DECL_NSIDOMTHREADSERVICE
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// Any DOM consumers that need access to this service should use this method.
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static already_AddRefed<nsIDOMThreadService> GetOrInitService();
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// Simple getter for this service. This does not create the service if it
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// hasn't been created already, and it never AddRef's!
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static nsDOMThreadService* get();
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// Easy access to the services we care about.
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static nsIJSRuntimeService* JSRuntimeService();
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static nsIThreadJSContextStack* ThreadJSContextStack();
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static nsIXPCSecurityManager* WorkerSecurityManager();
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void CancelWorkersForGlobal(nsIScriptGlobalObject* aGlobalObject);
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void SuspendWorkersForGlobal(nsIScriptGlobalObject* aGlobalObject);
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void ResumeWorkersForGlobal(nsIScriptGlobalObject* aGlobalObject);
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nsresult ChangeThreadPoolMaxThreads(PRInt16 aDelta);
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private:
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nsDOMThreadService();
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~nsDOMThreadService();
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nsresult Init();
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void Cleanup();
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static void Shutdown();
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nsresult Dispatch(nsDOMWorkerThread* aWorker,
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nsIRunnable* aRunnable);
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void WorkerComplete(nsDOMWorkerRunnable* aRunnable);
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void WaitForCanceledWorker(nsDOMWorkerThread* aWorker);
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static JSContext* CreateJSContext();
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void NoteDyingPool(nsDOMWorkerPool* aPool);
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void TimeoutReady(nsDOMWorkerTimeout* aTimeout);
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// Our internal thread pool.
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nsCOMPtr<nsIThreadPool> mThreadPool;
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// Weak references, only ever touched on the main thread!
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nsTPtrArray<nsDOMWorkerPool> mPools;
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// mMonitor protects all access to mWorkersInProgress and
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// mCreationsInProgress.
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PRMonitor* mMonitor;
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// A map from nsDOMWorkerThread to nsDOMWorkerRunnable.
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nsRefPtrHashtable<nsVoidPtrHashKey, nsDOMWorkerRunnable> mWorkersInProgress;
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};
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#endif /* __NSDOMTHREADSERVICE_H__ */
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