tenfourfox/xpcom/libxpcomrt/XPCOMRTInit.cpp
Cameron Kaiser c9b2922b70 hello FPR
2017-04-19 00:56:45 -07:00

200 lines
5.9 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:set ts=4 sw=4 sts=4 ci et: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/Module.h"
#include "mozilla/ModuleUtils.h"
#include "mozilla/NullPtr.h"
#include "mozilla/TimeStamp.h"
#include "nsCategoryManager.h"
#include "nsComponentManager.h"
#include "nsDebugImpl.h"
#include "nsIErrorService.h"
#include "nsMemoryImpl.h"
#include "nsNetCID.h"
#include "nsNetModuleStandalone.h"
#include "nsObserverService.h"
#include "nsThreadManager.h"
#include "nsThreadPool.h"
#include "nsUUIDGenerator.h"
#include "nsXPCOMCIDInternal.h"
#include "nsXPCOMPrivate.h"
#include "TimerThread.h"
#include "XPCOMRTInit.h"
static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID);
NS_GENERIC_FACTORY_CONSTRUCTOR(nsTimerImpl)
NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsUUIDGenerator, Init)
static nsresult
nsThreadManagerGetSingleton(nsISupports* aOuter,
const nsIID& aIID,
void** aInstancePtr)
{
NS_ASSERTION(aInstancePtr, "null outptr");
if (NS_WARN_IF(aOuter)) {
return NS_ERROR_NO_AGGREGATION;
}
return nsThreadManager::get()->QueryInterface(aIID, aInstancePtr);
}
NS_GENERIC_FACTORY_CONSTRUCTOR(nsThreadPool)
nsComponentManagerImpl* nsComponentManagerImpl::gComponentManager = nullptr;
bool gXPCOMShuttingDown = false;
bool gXPCOMThreadsShutDown = false;
#define COMPONENT(NAME, Ctor) static NS_DEFINE_CID(kNS_##NAME##_CID, NS_##NAME##_CID);
#include "XPCOMRTModule.inc"
#undef COMPONENT
#define COMPONENT(NAME, Ctor) { &kNS_##NAME##_CID, false, nullptr, Ctor },
const mozilla::Module::CIDEntry kXPCOMCIDEntries[] = {
{ &kComponentManagerCID, true, nullptr, nsComponentManagerImpl::Create },
#include "XPCOMRTModule.inc"
{ nullptr }
};
#undef COMPONENT
#define COMPONENT(NAME, Ctor) { NS_##NAME##_CONTRACTID, &kNS_##NAME##_CID },
const mozilla::Module::ContractIDEntry kXPCOMContracts[] = {
#include "XPCOMRTModule.inc"
{ nullptr }
};
#undef COMPONENT
const mozilla::Module kXPCOMRTModule = {
mozilla::Module::kVersion, kXPCOMCIDEntries, kXPCOMContracts
};
nsresult
NS_InitXPCOMRT()
{
nsresult rv = NS_OK;
NS_SetMainThread();
mozilla::TimeStamp::Startup();
rv = nsThreadManager::get()->Init();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
// Set up the timer globals/timer thread
rv = nsTimerImpl::Startup();
if (NS_WARN_IF(NS_FAILED(rv))) {
return rv;
}
nsComponentManagerImpl::gComponentManager = new nsComponentManagerImpl();
NS_ADDREF(nsComponentManagerImpl::gComponentManager);
rv = nsComponentManagerImpl::gComponentManager->Init();
if (NS_FAILED(rv)) {
NS_RELEASE(nsComponentManagerImpl::gComponentManager);
return rv;
}
mozilla::InitNetModuleStandalone();
return NS_OK;
}
nsresult
NS_ShutdownXPCOMRT()
{
nsresult rv = NS_OK;
// Notify observers of xpcom shutting down
{
// Block it so that the COMPtr will get deleted before we hit
// servicemanager shutdown
nsCOMPtr<nsIThread> thread = do_GetCurrentThread();
if (NS_WARN_IF(!thread)) {
return NS_ERROR_UNEXPECTED;
}
RefPtr<nsObserverService> observerService;
CallGetService("@mozilla.org/observer-service;1",
(nsObserverService**)getter_AddRefs(observerService));
if (observerService) {
observerService->NotifyObservers(nullptr,
NS_XPCOM_WILL_SHUTDOWN_OBSERVER_ID,
nullptr);
nsCOMPtr<nsIServiceManager> mgr;
rv = NS_GetServiceManager(getter_AddRefs(mgr));
if (NS_SUCCEEDED(rv)) {
observerService->NotifyObservers(mgr, NS_XPCOM_SHUTDOWN_OBSERVER_ID,
nullptr);
}
}
// This must happen after the shutdown of media and widgets, which
// are triggered by the NS_XPCOM_SHUTDOWN_OBSERVER_ID notification.
NS_ProcessPendingEvents(thread);
if (observerService)
observerService->NotifyObservers(nullptr,
NS_XPCOM_SHUTDOWN_THREADS_OBSERVER_ID,
nullptr);
gXPCOMThreadsShutDown = true;
NS_ProcessPendingEvents(thread);
// Shutdown the timer thread and all timers that might still be alive before
// shutting down the component manager
nsTimerImpl::Shutdown();
NS_ProcessPendingEvents(thread);
// Net module needs to be shutdown before the thread manager or else
// the thread manager will hang waiting for the socket transport
// service to shutdown.
mozilla::ShutdownNetModuleStandalone();
// Shutdown all remaining threads. This method does not return until
// all threads created using the thread manager (with the exception of
// the main thread) have exited.
nsThreadManager::get()->Shutdown();
NS_ProcessPendingEvents(thread);
}
mozilla::services::Shutdown();
// Shutdown global servicemanager
if (nsComponentManagerImpl::gComponentManager) {
nsComponentManagerImpl::gComponentManager->FreeServices();
}
// Shutdown xpcom. This will release all loaders and cause others holding
// a refcount to the component manager to release it.
if (nsComponentManagerImpl::gComponentManager) {
rv = (nsComponentManagerImpl::gComponentManager)->Shutdown();
NS_ASSERTION(NS_SUCCEEDED(rv), "Component Manager shutdown failed.");
} else {
NS_WARNING("Component Manager was never created ...");
}
// Finally, release the component manager last because it unloads the
// libraries:
if (nsComponentManagerImpl::gComponentManager) {
nsrefcnt cnt;
NS_RELEASE2(nsComponentManagerImpl::gComponentManager, cnt);
NS_ASSERTION(cnt == 0, "Component Manager being held past XPCOM shutdown.");
}
nsComponentManagerImpl::gComponentManager = nullptr;
nsCategoryManager::Destroy();
return NS_OK;
}