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341 lines
11 KiB
C++
341 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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 nsComponentManager_h__
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#define nsComponentManager_h__
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#include "nsXPCOM.h"
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#include "xpcom-private.h"
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#include "nsIComponentManager.h"
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#include "nsIComponentRegistrar.h"
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#include "nsIServiceManager.h"
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#include "nsILocalFile.h"
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#include "mozilla/Module.h"
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#include "mozilla/ModuleLoader.h"
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#include "mozilla/ReentrantMonitor.h"
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#include "nsXULAppAPI.h"
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#include "nsNativeComponentLoader.h"
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#include "nsIFactory.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "pldhash.h"
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#include "prtime.h"
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#include "nsCOMPtr.h"
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#include "nsAutoPtr.h"
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#include "nsWeakReference.h"
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#include "nsIFile.h"
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#include "plarena.h"
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#include "nsCOMArray.h"
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#include "nsDataHashtable.h"
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#include "nsInterfaceHashtable.h"
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#include "nsClassHashtable.h"
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#include "nsTArray.h"
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#include "mozilla/Omnijar.h"
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#include "nsIZipReader.h"
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struct nsFactoryEntry;
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class nsIServiceManager;
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struct PRThread;
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#define NS_COMPONENTMANAGER_CID \
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{ /* 91775d60-d5dc-11d2-92fb-00e09805570f */ \
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0x91775d60, \
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0xd5dc, \
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0x11d2, \
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{0x92, 0xfb, 0x00, 0xe0, 0x98, 0x05, 0x57, 0x0f} \
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}
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/* keys for registry use */
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extern const char xpcomKeyName[];
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extern const char xpcomComponentsKeyName[];
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extern const char lastModValueName[];
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extern const char fileSizeValueName[];
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extern const char nativeComponentType[];
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extern const char staticComponentType[];
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#ifdef DEBUG
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#define XPCOM_CHECK_PENDING_CIDS
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#endif
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////////////////////////////////////////////////////////////////////////////////
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extern const mozilla::Module kXPCOMModule;
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// Array of Loaders and their type strings
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struct nsLoaderdata {
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nsCOMPtr<mozilla::ModuleLoader> loader;
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nsCString type;
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};
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class nsComponentManagerImpl
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: public nsIComponentManager
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, public nsIServiceManager
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, public nsSupportsWeakReference
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, public nsIComponentRegistrar
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, public nsIInterfaceRequestor
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIINTERFACEREQUESTOR
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NS_DECL_NSICOMPONENTMANAGER
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NS_DECL_NSICOMPONENTREGISTRAR
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static nsresult Create(nsISupports* aOuter, REFNSIID aIID, void** aResult);
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nsresult RegistryLocationForFile(nsIFile* aFile,
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nsCString& aResult);
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nsresult FileForRegistryLocation(const nsCString &aLocation,
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nsILocalFile **aSpec);
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NS_DECL_NSISERVICEMANAGER
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// nsComponentManagerImpl methods:
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nsComponentManagerImpl();
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static nsComponentManagerImpl* gComponentManager;
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nsresult Init();
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nsresult Shutdown(void);
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nsresult FreeServices();
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already_AddRefed<mozilla::ModuleLoader> LoaderForExtension(const nsACString& aExt);
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nsInterfaceHashtable<nsCStringHashKey, mozilla::ModuleLoader> mLoaderMap;
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already_AddRefed<nsIFactory> FindFactory(const nsCID& aClass);
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already_AddRefed<nsIFactory> FindFactory(const char *contractID,
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PRUint32 aContractIDLen);
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already_AddRefed<nsIFactory> LoadFactory(nsFactoryEntry *aEntry);
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nsFactoryEntry *GetFactoryEntry(const char *aContractID,
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PRUint32 aContractIDLen);
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nsFactoryEntry *GetFactoryEntry(const nsCID &aClass);
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nsDataHashtable<nsIDHashKey, nsFactoryEntry*> mFactories;
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nsDataHashtable<nsCStringHashKey, nsFactoryEntry*> mContractIDs;
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mozilla::ReentrantMonitor mMon;
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static void InitializeStaticModules();
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static void InitializeModuleLocations();
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struct ComponentLocation
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{
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NSLocationType type;
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nsCOMPtr<nsILocalFile> location;
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bool jar;
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};
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static nsTArray<const mozilla::Module*>* sStaticModules;
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static nsTArray<ComponentLocation>* sModuleLocations;
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static nsTArray<ComponentLocation>* sJarModuleLocations;
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nsNativeModuleLoader mNativeModuleLoader;
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class KnownModule
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{
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public:
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/**
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* Static or binary module.
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*/
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KnownModule(const mozilla::Module* aModule, nsILocalFile* aFile)
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: mModule(aModule)
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, mFile(aFile)
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, mLoaded(false)
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, mFailed(false)
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{ }
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KnownModule(nsILocalFile* aFile)
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: mModule(NULL)
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, mFile(aFile)
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, mLoader(NULL)
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, mLoaded(false)
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, mFailed(false)
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{ }
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KnownModule(nsILocalFile* aFile, const nsACString& aPath)
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: mModule(NULL)
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, mFile(aFile)
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, mPath(aPath)
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, mLoader(NULL)
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, mLoaded(false)
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, mFailed(false)
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{ }
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~KnownModule()
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{
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if (mLoaded && mModule->unloadProc)
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mModule->unloadProc();
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}
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bool EnsureLoader();
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bool Load();
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const mozilla::Module* Module() const
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{
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return mModule;
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}
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/**
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* For error logging, get a description of this module, either the
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* file path, or <static module>.
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*/
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nsCString Description() const;
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private:
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const mozilla::Module* mModule;
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nsCOMPtr<nsILocalFile> mFile;
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nsCString mPath;
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nsCOMPtr<mozilla::ModuleLoader> mLoader;
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bool mLoaded;
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bool mFailed;
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};
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// The KnownModule is kept alive by these members, it is
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// referenced by pointer from the factory entries.
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nsTArray< nsAutoPtr<KnownModule> > mKnownStaticModules;
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nsClassHashtable<nsHashableHashKey, KnownModule> mKnownFileModules;
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// The key is a string in this format "<jar path>|<path within jar>"
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nsClassHashtable<nsCStringHashKey, KnownModule> mKnownJARModules;
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void RegisterModule(const mozilla::Module* aModule,
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nsILocalFile* aFile);
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void RegisterCIDEntry(const mozilla::Module::CIDEntry* aEntry,
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KnownModule* aModule);
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void RegisterContractID(const mozilla::Module::ContractIDEntry* aEntry);
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void RegisterJarManifest(nsIZipReader* aReader,
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const char* aPath, bool aChromeOnly);
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void RegisterManifestFile(NSLocationType aType, nsILocalFile* aFile,
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bool aChromeOnly);
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struct ManifestProcessingContext
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{
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ManifestProcessingContext(NSLocationType aType, nsILocalFile* aFile, bool aChromeOnly)
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: mType(aType)
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, mFile(aFile)
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, mPath(NULL)
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, mChromeOnly(aChromeOnly)
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{ }
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ManifestProcessingContext(NSLocationType aType, nsIZipReader* aReader, const char* aPath, bool aChromeOnly)
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: mType(aType)
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, mReader(aReader)
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, mPath(aPath)
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, mChromeOnly(aChromeOnly)
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{
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nsCOMPtr<nsIFile> file;
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aReader->GetFile(getter_AddRefs(file));
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nsCOMPtr<nsILocalFile> localfile = do_QueryInterface(file);
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mFile = localfile;
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}
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~ManifestProcessingContext() { }
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NSLocationType mType;
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nsILocalFile* mFile;
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nsIZipReader* mReader;
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const char* mPath;
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bool mChromeOnly;
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};
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void ManifestManifest(ManifestProcessingContext& cx, int lineno, char *const * argv);
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void ManifestBinaryComponent(ManifestProcessingContext& cx, int lineno, char *const * argv);
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void ManifestXPT(ManifestProcessingContext& cx, int lineno, char *const * argv);
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void ManifestComponent(ManifestProcessingContext& cx, int lineno, char *const * argv);
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void ManifestContract(ManifestProcessingContext& cx, int lineno, char* const * argv);
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void ManifestCategory(ManifestProcessingContext& cx, int lineno, char* const * argv);
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void RereadChromeManifests();
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// Shutdown
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enum {
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NOT_INITIALIZED,
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NORMAL,
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SHUTDOWN_IN_PROGRESS,
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SHUTDOWN_COMPLETE
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} mStatus;
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nsTArray<nsLoaderdata> mLoaderData;
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PLArenaPool mArena;
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struct PendingServiceInfo {
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const nsCID* cid;
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PRThread* thread;
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};
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inline PendingServiceInfo* AddPendingService(const nsCID& aServiceCID,
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PRThread* aThread);
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inline void RemovePendingService(const nsCID& aServiceCID);
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inline PRThread* GetPendingServiceThread(const nsCID& aServiceCID) const;
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nsTArray<PendingServiceInfo> mPendingServices;
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private:
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~nsComponentManagerImpl();
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};
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#define NS_MAX_FILENAME_LEN 1024
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#define NS_ERROR_IS_DIR NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_XPCOM, 24)
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struct nsFactoryEntry
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{
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nsFactoryEntry(const mozilla::Module::CIDEntry* entry,
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nsComponentManagerImpl::KnownModule* module);
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// nsIComponentRegistrar.registerFactory support
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nsFactoryEntry(const nsCID& aClass, nsIFactory* factory);
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~nsFactoryEntry();
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already_AddRefed<nsIFactory> GetFactory();
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const mozilla::Module::CIDEntry* mCIDEntry;
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nsComponentManagerImpl::KnownModule* mModule;
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nsCOMPtr<nsIFactory> mFactory;
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nsCOMPtr<nsISupports> mServiceObject;
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};
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#endif // nsComponentManager_h__
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