зеркало из https://github.com/mozilla/gecko-dev.git
323 строки
9.7 KiB
C++
323 строки
9.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "msgCore.h" // for pre-compiled headers...
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#include "nsIServiceManager.h"
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#include "nsIFactory.h"
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#include "nsISupports.h"
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#include "nsMsgLocalCID.h"
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#include "pratom.h"
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// include files for components this factory creates...
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#include "nsMailboxUrl.h"
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#include "nsPop3URL.h"
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#include "nsMailboxService.h"
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#include "nsLocalMailFolder.h"
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#include "nsParseMailbox.h"
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#include "nsPop3Service.h"
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#include "nsPop3IncomingServer.h"
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#include "nsCOMPtr.h"
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static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
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static NS_DEFINE_CID(kMailboxUrlCID, NS_MAILBOXURL_CID);
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static NS_DEFINE_CID(kMailboxParserCID, NS_MAILBOXPARSER_CID);
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static NS_DEFINE_CID(kMailboxServiceCID, NS_MAILBOXSERVICE_CID);
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static NS_DEFINE_CID(kMailNewsLocalResourceCID, NS_MAILNEWSRESOURCE_CID);
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static NS_DEFINE_CID(kPop3ServiceCID, NS_POP3SERVICE_CID);
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static NS_DEFINE_CID(kPop3UrlCID, NS_POP3URL_CID);
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static NS_DEFINE_CID(kPop3IncomingServerCID, NS_POP3INCOMINGSERVER_CID);
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////////////////////////////////////////////////////////////
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//
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////////////////////////////////////////////////////////////
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static PRInt32 g_InstanceCount = 0;
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static PRInt32 g_LockCount = 0;
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class nsMsgLocalFactory : public nsIFactory
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{
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public:
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// nsISupports methods
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NS_DECL_ISUPPORTS
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nsMsgLocalFactory(const nsCID &aClass, const char* aClassName, const char* aProgID);
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// nsIFactory methods
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NS_IMETHOD CreateInstance(nsISupports *aOuter, const nsIID &aIID, void **aResult);
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NS_IMETHOD LockFactory(PRBool aLock);
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protected:
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virtual ~nsMsgLocalFactory();
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nsCID mClassID;
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char* mClassName;
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char* mProgID;
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};
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nsMsgLocalFactory::nsMsgLocalFactory(const nsCID &aClass, const char* aClassName, const char* aProgID)
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: mClassID(aClass), mClassName(nsCRT::strdup(aClassName)), mProgID(nsCRT::strdup(aProgID))
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{
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NS_INIT_REFCNT();
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}
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nsMsgLocalFactory::~nsMsgLocalFactory()
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{
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NS_ASSERTION(mRefCnt == 0, "non-zero refcnt at destruction");
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PL_strfree(mClassName);
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PL_strfree(mProgID);
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}
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nsresult nsMsgLocalFactory::QueryInterface(const nsIID &aIID, void **aResult)
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{
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if (aResult == nsnull)
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return NS_ERROR_NULL_POINTER;
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// Always NULL result, in case of failure
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*aResult = nsnull;
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// we support two interfaces....nsISupports and nsFactory.....
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if (aIID.Equals(::nsISupports::GetIID()))
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*aResult = (void *)(nsISupports*)this;
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else if (aIID.Equals(nsIFactory::GetIID()))
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*aResult = (void *)(nsIFactory*)this;
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if (*aResult == nsnull)
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return NS_NOINTERFACE;
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AddRef(); // Increase reference count for caller
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return NS_OK;
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}
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NS_IMPL_ADDREF(nsMsgLocalFactory)
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NS_IMPL_RELEASE(nsMsgLocalFactory)
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nsresult nsMsgLocalFactory::CreateInstance(nsISupports *aOuter, const nsIID &aIID, void **aResult)
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{
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nsresult rv = NS_OK;
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if (aResult == nsnull)
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return NS_ERROR_NULL_POINTER;
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*aResult = nsnull;
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// ClassID check happens here
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// Whenever you add a new class that supports an interface, plug it in here!!!
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// do they want a local datasource ?
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if (mClassID.Equals(kMailboxUrlCID))
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{
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nsMailboxUrl * url = new nsMailboxUrl(nsnull, nsnull);
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if (url)
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rv = url->QueryInterface(aIID, aResult);
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else
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rv = NS_ERROR_OUT_OF_MEMORY;
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if (NS_FAILED(rv) && url)
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delete url;
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}
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else if (mClassID.Equals(kPop3UrlCID))
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{
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nsPop3URL * popUrl = new nsPop3URL(nsnull, nsnull);
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if (popUrl)
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rv = popUrl->QueryInterface(aIID, aResult);
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else
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rv = NS_ERROR_OUT_OF_MEMORY;
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if (NS_FAILED(rv) && popUrl)
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delete popUrl;
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}
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else if (mClassID.Equals(kMailboxParserCID))
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{
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nsMsgMailboxParser * parser = new nsMsgMailboxParser();
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if (parser)
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rv = parser->QueryInterface(aIID, aResult);
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else
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rv = NS_ERROR_OUT_OF_MEMORY;
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if (NS_FAILED(rv) && parser)
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delete parser;
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}
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else if (mClassID.Equals(kMailboxServiceCID))
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{
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nsMailboxService * mboxService = new nsMailboxService();
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if (mboxService)
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rv = mboxService->QueryInterface(aIID, aResult);
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else
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rv = NS_ERROR_OUT_OF_MEMORY;
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if (NS_FAILED(rv) && mboxService)
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delete mboxService;
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}
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else if (mClassID.Equals(kPop3ServiceCID))
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{
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nsPop3Service * popService = new nsPop3Service();
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if (popService)
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rv = popService->QueryInterface(aIID, aResult);
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else
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rv = NS_ERROR_OUT_OF_MEMORY;
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if (NS_FAILED(rv) && popService)
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delete popService;
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}
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else if (mClassID.Equals(kMailNewsLocalResourceCID))
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{
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nsMsgLocalMailFolder * localFolder = new nsMsgLocalMailFolder();
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if (localFolder)
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rv = localFolder->QueryInterface(aIID, aResult);
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else
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rv = NS_ERROR_OUT_OF_MEMORY;
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if (NS_FAILED(rv) && localFolder)
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delete localFolder;
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}
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else if (mClassID.Equals(kPop3IncomingServerCID))
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rv = NS_NewPop3IncomingServer(nsISupports::GetIID(), aResult);
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else
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rv = NS_NOINTERFACE;
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return rv;
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}
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nsresult nsMsgLocalFactory::LockFactory(PRBool aLock)
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{
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if (aLock) {
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PR_AtomicIncrement(&g_LockCount);
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} else {
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PR_AtomicDecrement(&g_LockCount);
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}
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return NS_OK;
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}
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// return the proper factory to the caller.
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extern "C" NS_EXPORT nsresult NSGetFactory(nsISupports* aServMgr,
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const nsCID &aClass,
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const char *aClassName,
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const char *aProgID,
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nsIFactory **aFactory)
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{
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if (nsnull == aFactory)
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return NS_ERROR_NULL_POINTER;
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// If we decide to implement multiple factories in the msg.dll, then we need to check the class
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// type here and create the appropriate factory instead of always creating a nsMsgFactory...
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*aFactory = new nsMsgLocalFactory(aClass, aClassName, aProgID);
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if (aFactory)
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return (*aFactory)->QueryInterface(nsIFactory::GetIID(), (void**)aFactory); // they want a Factory Interface so give it to them
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else
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return NS_ERROR_OUT_OF_MEMORY;
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}
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extern "C" NS_EXPORT PRBool NSCanUnload(nsISupports* aServMgr)
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{
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return PRBool(g_InstanceCount == 0 && g_LockCount == 0);
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}
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extern "C" NS_EXPORT nsresult
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NSRegisterSelf(nsISupports* aServMgr, const char* path)
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{
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nsresult rv;
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nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
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if (NS_FAILED(rv)) return rv;
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nsIComponentManager* compMgr;
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rv = servMgr->GetService(kComponentManagerCID,
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nsIComponentManager::GetIID(),
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(nsISupports**)&compMgr);
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if (NS_FAILED(rv)) return rv;
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rv = compMgr->RegisterComponent(kMailboxUrlCID, nsnull, nsnull,
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path, PR_TRUE, PR_TRUE);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->RegisterComponent(kMailboxServiceCID, nsnull, nsnull,
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path, PR_TRUE, PR_TRUE);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->RegisterComponent(kMailboxParserCID, nsnull, nsnull,
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path, PR_TRUE, PR_TRUE);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->RegisterComponent(kPop3UrlCID, nsnull, nsnull,
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path, PR_TRUE, PR_TRUE);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->RegisterComponent(kPop3ServiceCID, nsnull, nsnull,
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path, PR_TRUE, PR_TRUE);
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if (NS_FAILED(rv)) goto done;
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// register our RDF resource factories:
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rv = compMgr->RegisterComponent(kMailNewsLocalResourceCID,
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"Mail/News Local Resource Factory",
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NS_RDF_RESOURCE_FACTORY_PROGID_PREFIX "mailbox",
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path, PR_TRUE, PR_TRUE);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->RegisterComponent(kPop3IncomingServerCID,
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"Pop3 Incoming Server",
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"component://netscape/messenger/server&type=pop3",
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path, PR_TRUE, PR_TRUE);
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if (NS_FAILED(rv)) goto done;
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done:
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(void)servMgr->ReleaseService(kComponentManagerCID, compMgr);
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return rv;
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}
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extern "C" NS_EXPORT nsresult
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NSUnregisterSelf(nsISupports* aServMgr, const char* path)
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{
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nsresult rv;
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nsCOMPtr<nsIServiceManager> servMgr(do_QueryInterface(aServMgr, &rv));
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if (NS_FAILED(rv)) return rv;
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nsIComponentManager* compMgr;
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rv = servMgr->GetService(kComponentManagerCID,
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nsIComponentManager::GetIID(),
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(nsISupports**)&compMgr);
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if (NS_FAILED(rv)) return rv;
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rv = compMgr->UnregisterFactory(kMailboxUrlCID, path);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->UnregisterFactory(kMailboxServiceCID, path);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->UnregisterFactory(kPop3UrlCID, path);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->UnregisterFactory(kPop3ServiceCID, path);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->UnregisterFactory(kMailboxParserCID, path);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->UnregisterComponent(kMailNewsLocalResourceCID, path);
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if (NS_FAILED(rv)) goto done;
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rv = compMgr->UnregisterComponent(kPop3IncomingServerCID, path);
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if (NS_FAILED(rv)) goto done;
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done:
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(void)servMgr->ReleaseService(kComponentManagerCID, compMgr);
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return rv;
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}
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