pjs/xpcom/build/nsXPComInit.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsIRegistry.h"
#include "nscore.h"
#include "nsCOMPtr.h"
#include "nsObserverService.h"
#include "nsObserver.h"
#include "nsProperties.h"
#include "nsAllocator.h"
#include "nsArena.h"
#include "nsBuffer.h"
#include "nsByteBuffer.h"
#include "nsPageMgr.h"
#include "nsSupportsArray.h"
#include "nsUnicharBuffer.h"
#include "nsComponentManager.h"
#include "nsIServiceManager.h"
#include "nsGenericFactory.h"
#include "nsEventQueueService.h"
#include "nsEventQueue.h"
#include "nsProxyObjectManager.h"
#include "nsProxyEventPrivate.h" // access to the impl of nsProxyObjectManager for the generic factory registration.
#include "nsFileSpecImpl.h"
// base
static NS_DEFINE_CID(kAllocatorCID, NS_ALLOCATOR_CID);
// ds
static NS_DEFINE_CID(kArenaCID, NS_ARENA_CID);
static NS_DEFINE_CID(kBufferCID, NS_BUFFER_CID);
static NS_DEFINE_CID(kByteBufferCID, NS_BYTEBUFFER_CID);
static NS_DEFINE_CID(kPageManagerCID, NS_PAGEMANAGER_CID);
static NS_DEFINE_CID(kPropertiesCID, NS_PROPERTIES_CID);
static NS_DEFINE_CID(kSupportsArrayCID, NS_SUPPORTSARRAY_CID);
static NS_DEFINE_CID(kUnicharBufferCID, NS_UNICHARBUFFER_CID);
// io
static NS_DEFINE_CID(kFileSpecCID, NS_FILESPEC_CID);
static NS_DEFINE_CID(kDirectoryIteratorCID, NS_DIRECTORYITERATOR_CID);
// components
static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
static NS_DEFINE_CID(kGenericFactoryCID, NS_GENERICFACTORY_CID);
// threads
static NS_DEFINE_CID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
static NS_DEFINE_CID(kEventQueueCID, NS_EVENTQUEUE_CID);
// proxy
static NS_DEFINE_CID(kProxyObjectManagerCID, NS_PROXYEVENT_MANAGER_CID);
////////////////////////////////////////////////////////////////////////////////
// XPCOM initialization
//
// To Control the order of initialization of these key components I am putting
// this function.
//
// - nsServiceManager
// - nsComponentManager
// - nsRegistry
//
// Here are key points to remember:
// - A global of all these need to exist. nsServiceManager is an independent object.
// nsComponentManager uses both the globalServiceManager and its own registry.
//
// - A static object of both the nsComponentManager and nsServiceManager
// are in use. Hence InitXPCOM() gets triggered from both
// NS_GetGlobale{Service/Component}Manager() calls.
//
// - There exists no global Registry. Registry can be created from the component manager.
//
static nsresult
RegisterGenericFactory(nsIComponentManager* compMgr, const nsCID& cid, const char* className,
const char *progid, nsIGenericFactory::ConstructorProcPtr constr)
{
nsresult rv;
nsIGenericFactory* fact;
rv = NS_NewGenericFactory(&fact, constr);
if (NS_FAILED(rv)) return rv;
rv = compMgr->RegisterFactory(cid, className, progid, fact, PR_TRUE);
NS_RELEASE(fact);
return rv;
}
nsIServiceManager* nsServiceManager::mGlobalServiceManager = NULL;
nsComponentManagerImpl* nsComponentManagerImpl::gComponentManager = NULL;
nsresult NS_InitXPCOM(nsIServiceManager* *result)
{
nsresult rv = NS_OK;
// 1. Create the Global Service Manager
nsIServiceManager* servMgr = NULL;
if (nsServiceManager::mGlobalServiceManager == NULL)
{
rv = NS_NewServiceManager(&servMgr);
if (NS_FAILED(rv)) return rv;
nsServiceManager::mGlobalServiceManager = servMgr;
if (result)
{
NS_ADDREF(servMgr);
*result = servMgr;
}
}
// 2. Create the Component Manager and register with global service manager
// It is understood that the component manager can use the global service manager.
nsComponentManagerImpl *compMgr = NULL;
if (nsComponentManagerImpl::gComponentManager == NULL)
{
compMgr = new nsComponentManagerImpl();
if (compMgr == NULL)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(compMgr);
rv = compMgr->Init();
if (NS_FAILED(rv))
{
NS_RELEASE(compMgr);
return rv;
}
nsComponentManagerImpl::gComponentManager = compMgr;
}
rv = servMgr->RegisterService(kComponentManagerCID, compMgr);
if (NS_FAILED(rv)) return rv;
// 3. Register the global services with the component manager so that
// clients can create new objects.
// Registry
nsIFactory *registryFactory = NULL;
rv = NS_RegistryGetFactory(&registryFactory);
if (NS_FAILED(rv)) return rv;
NS_DEFINE_CID(kRegistryCID, NS_REGISTRY_CID);
rv = compMgr->RegisterFactory(kRegistryCID,
NS_REGISTRY_CLASSNAME,
NS_REGISTRY_PROGID,
registryFactory, PR_TRUE);
NS_RELEASE(registryFactory);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kAllocatorCID,
NS_ALLOCATOR_CLASSNAME,
NS_ALLOCATOR_PROGID,
nsAllocatorImpl::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kArenaCID,
NS_ARENA_CLASSNAME,
NS_ARENA_PROGID,
ArenaImpl::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kBufferCID,
NS_BUFFER_CLASSNAME,
NS_BUFFER_PROGID,
nsBuffer::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kByteBufferCID,
NS_BYTEBUFFER_CLASSNAME,
NS_BYTEBUFFER_PROGID,
ByteBufferImpl::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kFileSpecCID,
NS_FILESPEC_CLASSNAME,
NS_FILESPEC_PROGID,
nsFileSpecImpl::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kDirectoryIteratorCID,
NS_DIRECTORYITERATOR_CLASSNAME,
NS_DIRECTORYITERATOR_PROGID,
nsDirectoryIteratorImpl::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kPageManagerCID,
NS_PAGEMANAGER_CLASSNAME,
NS_PAGEMANAGER_PROGID,
nsPageMgr::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kPropertiesCID,
NS_PROPERTIES_CLASSNAME,
NS_PROPERTIES_PROGID,
nsProperties::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kPersistentPropertiesCID,
NS_PERSISTENTPROPERTIES_CLASSNAME,
NS_PERSISTENTPROPERTIES_PROGID,
nsPersistentProperties::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kSupportsArrayCID,
NS_SUPPORTSARRAY_CLASSNAME,
NS_SUPPORTSARRAY_PROGID,
nsSupportsArray::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, nsObserver::GetCID(),
NS_OBSERVER_CLASSNAME,
NS_OBSERVER_PROGID,
nsObserver::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, nsObserverService::GetCID(),
NS_OBSERVERSERVICE_CLASSNAME,
NS_OBSERVERSERVICE_PROGID,
nsObserverService::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kGenericFactoryCID,
NS_GENERICFACTORY_CLASSNAME,
NS_GENERICFACTORY_PROGID,
nsGenericFactory::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kEventQueueServiceCID,
NS_EVENTQUEUESERVICE_CLASSNAME,
NS_EVENTQUEUESERVICE_PROGID,
nsEventQueueServiceImpl::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr, kEventQueueCID,
NS_EVENTQUEUE_CLASSNAME,
NS_EVENTQUEUE_PROGID,
nsEventQueueImpl::Create);
if (NS_FAILED(rv)) return rv;
rv = RegisterGenericFactory(compMgr,
kProxyObjectManagerCID,
NS_XPCOMPROXY_CLASSNAME,
NS_XPCOMPROXY_PROGID,
nsProxyObjectManager::Create);
#if 0 // Calling it only after we finalyze performance fixes
// Prepopulate registry for performance
nsComponentManagerImpl::gComponentManager->PlatformPrePopulateRegistry();
#endif
return rv;
}
////////////////////////////////////////////////////////////////////////////////