/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* 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 "base/basictypes.h" #include "mozilla/AbstractThread.h" #include "mozilla/Atomics.h" #include "mozilla/Poison.h" #include "mozilla/SharedThreadPool.h" #include "mozilla/XPCOM.h" #include "nsXULAppAPI.h" #include "nsXPCOMPrivate.h" #include "nsXPCOMCIDInternal.h" #include "mozilla/layers/ImageBridgeChild.h" #include "mozilla/layers/CompositorBridgeParent.h" #include "mozilla/dom/VideoDecoderManagerChild.h" #include "prlink.h" #include "nsCycleCollector.h" #include "nsObserverList.h" #include "nsObserverService.h" #include "nsProperties.h" #include "nsPersistentProperties.h" #include "nsScriptableInputStream.h" #include "nsBinaryStream.h" #include "nsStorageStream.h" #include "nsPipe.h" #include "nsScriptableBase64Encoder.h" #include "nsMemoryImpl.h" #include "nsDebugImpl.h" #include "nsTraceRefcnt.h" #include "nsErrorService.h" // Disable deprecation warnings generated by nsISupportsArray and associated // classes. #if defined(__GNUC__) #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wdeprecated-declarations" #elif defined(_MSC_VER) #pragma warning (push) #pragma warning (disable : 4996) #endif #include "nsSupportsArray.h" #if defined(__GNUC__) #pragma GCC diagnostic pop #elif defined(_MSC_VER) #pragma warning (pop) #endif #include "nsArray.h" #include "nsINIParserImpl.h" #include "nsSupportsPrimitives.h" #include "nsConsoleService.h" #include "nsComponentManager.h" #include "nsCategoryManagerUtils.h" #include "nsIServiceManager.h" #include "nsThreadManager.h" #include "nsThreadPool.h" #include "xptinfo.h" #include "nsIInterfaceInfoManager.h" #include "xptiprivate.h" #include "mozilla/XPTInterfaceInfoManager.h" #include "nsTimerImpl.h" #include "TimerThread.h" #include "nsThread.h" #include "nsProcess.h" #include "nsEnvironment.h" #include "nsVersionComparatorImpl.h" #include "nsIFile.h" #include "nsLocalFile.h" #if defined(XP_UNIX) #include "nsNativeCharsetUtils.h" #endif #include "nsDirectoryService.h" #include "nsDirectoryServiceDefs.h" #include "nsCategoryManager.h" #include "nsICategoryManager.h" #include "nsMultiplexInputStream.h" #include "nsStringStream.h" extern nsresult nsStringInputStreamConstructor(nsISupports*, REFNSIID, void**); #include "nsAtomService.h" #include "nsAtomTable.h" #include "nsISupportsImpl.h" #include "nsHashPropertyBag.h" #include "nsUnicharInputStream.h" #include "nsVariant.h" #include "nsUUIDGenerator.h" #include "nsIOUtil.h" #include "SpecialSystemDirectory.h" #if defined(XP_WIN) #include "nsWindowsRegKey.h" #endif #ifdef MOZ_WIDGET_COCOA #include "nsMacUtilsImpl.h" #endif #include "nsSystemInfo.h" #include "nsMemoryReporterManager.h" #include "nsMemoryInfoDumper.h" #include "nsSecurityConsoleMessage.h" #include "nsMessageLoop.h" #include "nsStatusReporterManager.h" #include <locale.h> #include "mozilla/Services.h" #include "mozilla/Omnijar.h" #include "mozilla/HangMonitor.h" #include "mozilla/Telemetry.h" #include "mozilla/BackgroundHangMonitor.h" #include "nsChromeRegistry.h" #include "nsChromeProtocolHandler.h" #include "mozilla/PoisonIOInterposer.h" #include "mozilla/LateWriteChecks.h" #include "mozilla/scache/StartupCache.h" #include "base/at_exit.h" #include "base/command_line.h" #include "base/message_loop.h" #include "mozilla/ipc/BrowserProcessSubThread.h" #include "mozilla/AvailableMemoryTracker.h" #include "mozilla/ClearOnShutdown.h" #include "mozilla/CountingAllocatorBase.h" #include "mozilla/SystemMemoryReporter.h" #include "mozilla/UniquePtr.h" #include "mozilla/ipc/GeckoChildProcessHost.h" #include "ogg/ogg.h" #if defined(MOZ_VPX) && !defined(MOZ_VPX_NO_MEM_REPORTING) #if defined(HAVE_STDINT_H) // mozilla-config.h defines HAVE_STDINT_H, and then it's defined *again* in // vpx_config.h (which we include via vpx_mem.h, below). This redefinition // triggers a build warning on MSVC, so we have to #undef it first. #undef HAVE_STDINT_H #endif #include "vpx_mem/vpx_mem.h" #endif #include "GeckoProfiler.h" #include "jsapi.h" #include "js/Initialization.h" #include "gfxPlatform.h" #if EXPOSE_INTL_API #include "unicode/putil.h" #endif using namespace mozilla; using base::AtExitManager; using mozilla::ipc::BrowserProcessSubThread; namespace { static AtExitManager* sExitManager; static MessageLoop* sMessageLoop; static bool sCommandLineWasInitialized; static BrowserProcessSubThread* sIOThread; static BackgroundHangMonitor* sMainHangMonitor; } /* anonymous namespace */ // Registry Factory creation function defined in nsRegistry.cpp // We hook into this function locally to create and register the registry // Since noone outside xpcom needs to know about this and nsRegistry.cpp // does not have a local include file, we are putting this definition // here rather than in nsIRegistry.h extern nsresult NS_RegistryGetFactory(nsIFactory** aFactory); extern nsresult NS_CategoryManagerGetFactory(nsIFactory**); #ifdef XP_WIN extern nsresult CreateAnonTempFileRemover(); #endif NS_GENERIC_FACTORY_CONSTRUCTOR(nsProcess) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsID) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsString) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsCString) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRBool) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRUint8) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRUint16) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRUint32) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRUint64) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRTime) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsChar) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRInt16) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRInt32) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsPRInt64) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsFloat) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsDouble) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsVoid) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSupportsInterfacePointer) NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsConsoleService, Init) NS_GENERIC_FACTORY_CONSTRUCTOR(nsAtomService) NS_GENERIC_FACTORY_CONSTRUCTOR(nsTimer) NS_GENERIC_FACTORY_CONSTRUCTOR(nsBinaryOutputStream) NS_GENERIC_FACTORY_CONSTRUCTOR(nsBinaryInputStream) NS_GENERIC_FACTORY_CONSTRUCTOR(nsStorageStream) NS_GENERIC_FACTORY_CONSTRUCTOR(nsVersionComparatorImpl) NS_GENERIC_FACTORY_CONSTRUCTOR(nsScriptableBase64Encoder) NS_GENERIC_FACTORY_CONSTRUCTOR(nsVariantCC) NS_GENERIC_FACTORY_CONSTRUCTOR(nsHashPropertyBagCC) NS_GENERIC_AGGREGATED_CONSTRUCTOR(nsProperties) NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsUUIDGenerator, Init) #ifdef MOZ_WIDGET_COCOA NS_GENERIC_FACTORY_CONSTRUCTOR(nsMacUtilsImpl) #endif NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsSystemInfo, Init) NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsMemoryReporterManager, Init) NS_GENERIC_FACTORY_CONSTRUCTOR(nsMemoryInfoDumper) NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(nsStatusReporterManager, Init) NS_GENERIC_FACTORY_CONSTRUCTOR(nsIOUtil) NS_GENERIC_FACTORY_CONSTRUCTOR(nsSecurityConsoleMessage) 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) static nsresult nsXPTIInterfaceInfoManagerGetSingleton(nsISupports* aOuter, const nsIID& aIID, void** aInstancePtr) { NS_ASSERTION(aInstancePtr, "null outptr"); if (NS_WARN_IF(aOuter)) { return NS_ERROR_NO_AGGREGATION; } nsCOMPtr<nsIInterfaceInfoManager> iim(XPTInterfaceInfoManager::GetSingleton()); if (!iim) { return NS_ERROR_FAILURE; } return iim->QueryInterface(aIID, aInstancePtr); } nsComponentManagerImpl* nsComponentManagerImpl::gComponentManager = nullptr; bool gXPCOMShuttingDown = false; bool gXPCOMThreadsShutDown = false; char16_t* gGREBinPath = nullptr; static NS_DEFINE_CID(kComponentManagerCID, NS_COMPONENTMANAGER_CID); static NS_DEFINE_CID(kINIParserFactoryCID, NS_INIPARSERFACTORY_CID); NS_DEFINE_NAMED_CID(NS_CHROMEREGISTRY_CID); NS_DEFINE_NAMED_CID(NS_CHROMEPROTOCOLHANDLER_CID); NS_DEFINE_NAMED_CID(NS_SECURITY_CONSOLE_MESSAGE_CID); NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(nsChromeRegistry, nsChromeRegistry::GetSingleton) NS_GENERIC_FACTORY_CONSTRUCTOR(nsChromeProtocolHandler) #define NS_PERSISTENTPROPERTIES_CID NS_IPERSISTENTPROPERTIES_CID /* sigh */ static already_AddRefed<nsIFactory> CreateINIParserFactory(const mozilla::Module& aModule, const mozilla::Module::CIDEntry& aEntry) { nsCOMPtr<nsIFactory> f = new nsINIParserFactory(); return f.forget(); } #define COMPONENT(NAME, Ctor) static NS_DEFINE_CID(kNS_##NAME##_CID, NS_##NAME##_CID); #define COMPONENT_M(NAME, Ctor, Selector) static NS_DEFINE_CID(kNS_##NAME##_CID, NS_##NAME##_CID); #include "XPCOMModule.inc" #undef COMPONENT #undef COMPONENT_M #define COMPONENT(NAME, Ctor) { &kNS_##NAME##_CID, false, nullptr, Ctor }, #define COMPONENT_M(NAME, Ctor, Selector) { &kNS_##NAME##_CID, false, nullptr, Ctor, Selector }, const mozilla::Module::CIDEntry kXPCOMCIDEntries[] = { { &kComponentManagerCID, true, nullptr, nsComponentManagerImpl::Create, Module::ALLOW_IN_GPU_PROCESS }, { &kINIParserFactoryCID, false, CreateINIParserFactory }, #include "XPCOMModule.inc" { &kNS_CHROMEREGISTRY_CID, false, nullptr, nsChromeRegistryConstructor }, { &kNS_CHROMEPROTOCOLHANDLER_CID, false, nullptr, nsChromeProtocolHandlerConstructor }, { &kNS_SECURITY_CONSOLE_MESSAGE_CID, false, nullptr, nsSecurityConsoleMessageConstructor }, { nullptr } }; #undef COMPONENT #undef COMPONENT_M #define COMPONENT(NAME, Ctor) { NS_##NAME##_CONTRACTID, &kNS_##NAME##_CID }, #define COMPONENT_M(NAME, Ctor, Selector) { NS_##NAME##_CONTRACTID, &kNS_##NAME##_CID, Selector }, const mozilla::Module::ContractIDEntry kXPCOMContracts[] = { #include "XPCOMModule.inc" { NS_CHROMEREGISTRY_CONTRACTID, &kNS_CHROMEREGISTRY_CID }, { NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "chrome", &kNS_CHROMEPROTOCOLHANDLER_CID }, { NS_INIPARSERFACTORY_CONTRACTID, &kINIParserFactoryCID }, { NS_SECURITY_CONSOLE_MESSAGE_CONTRACTID, &kNS_SECURITY_CONSOLE_MESSAGE_CID }, { nullptr } }; #undef COMPONENT #undef COMPONENT_M const mozilla::Module kXPCOMModule = { mozilla::Module::kVersion, kXPCOMCIDEntries, kXPCOMContracts, nullptr, nullptr, nullptr, nullptr, Module::ALLOW_IN_GPU_PROCESS }; // gDebug will be freed during shutdown. static nsIDebug2* gDebug = nullptr; EXPORT_XPCOM_API(nsresult) NS_GetDebug(nsIDebug2** aResult) { return nsDebugImpl::Create(nullptr, NS_GET_IID(nsIDebug2), (void**)aResult); } EXPORT_XPCOM_API(nsresult) NS_InitXPCOM(nsIServiceManager** aResult, nsIFile* aBinDirectory) { return NS_InitXPCOM2(aResult, aBinDirectory, nullptr); } class ICUReporter final : public nsIMemoryReporter , public CountingAllocatorBase<ICUReporter> { public: NS_DECL_ISUPPORTS static void* Alloc(const void*, size_t aSize) { return CountingMalloc(aSize); } static void* Realloc(const void*, void* aPtr, size_t aSize) { return CountingRealloc(aPtr, aSize); } static void Free(const void*, void* aPtr) { return CountingFree(aPtr); } private: NS_IMETHOD CollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData, bool aAnonymize) override { MOZ_COLLECT_REPORT( "explicit/icu", KIND_HEAP, UNITS_BYTES, MemoryAllocated(), "Memory used by ICU, a Unicode and globalization support library."); return NS_OK; } ~ICUReporter() {} }; NS_IMPL_ISUPPORTS(ICUReporter, nsIMemoryReporter) /* static */ template<> Atomic<size_t> CountingAllocatorBase<ICUReporter>::sAmount(0); class OggReporter final : public nsIMemoryReporter , public CountingAllocatorBase<OggReporter> { public: NS_DECL_ISUPPORTS private: NS_IMETHOD CollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData, bool aAnonymize) override { MOZ_COLLECT_REPORT( "explicit/media/libogg", KIND_HEAP, UNITS_BYTES, MemoryAllocated(), "Memory allocated through libogg for Ogg, Theora, and related media " "files."); return NS_OK; } ~OggReporter() {} }; NS_IMPL_ISUPPORTS(OggReporter, nsIMemoryReporter) /* static */ template<> Atomic<size_t> CountingAllocatorBase<OggReporter>::sAmount(0); #ifdef MOZ_VPX class VPXReporter final : public nsIMemoryReporter , public CountingAllocatorBase<VPXReporter> { public: NS_DECL_ISUPPORTS private: NS_IMETHOD CollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData, bool aAnonymize) override { MOZ_COLLECT_REPORT( "explicit/media/libvpx", KIND_HEAP, UNITS_BYTES, MemoryAllocated(), "Memory allocated through libvpx for WebM media files."); return NS_OK; } ~VPXReporter() {} }; NS_IMPL_ISUPPORTS(VPXReporter, nsIMemoryReporter) /* static */ template<> Atomic<size_t> CountingAllocatorBase<VPXReporter>::sAmount(0); #endif /* MOZ_VPX */ static double TimeSinceProcessCreation() { bool ignore; return (TimeStamp::Now() - TimeStamp::ProcessCreation(ignore)).ToMilliseconds(); } static bool sInitializedJS = false; // Note that on OSX, aBinDirectory will point to .app/Contents/Resources/browser EXPORT_XPCOM_API(nsresult) NS_InitXPCOM2(nsIServiceManager** aResult, nsIFile* aBinDirectory, nsIDirectoryServiceProvider* aAppFileLocationProvider) { static bool sInitialized = false; if (sInitialized) { return NS_ERROR_FAILURE; } sInitialized = true; mozPoisonValueInit(); NS_LogInit(); NS_InitAtomTable(); mozilla::LogModule::Init(); JS_SetCurrentEmbedderTimeFunction(TimeSinceProcessCreation); char aLocal; profiler_init(&aLocal); nsresult rv = NS_OK; // We are not shutting down gXPCOMShuttingDown = false; // Initialize the available memory tracker before other threads have had a // chance to start up, because the initialization is not thread-safe. mozilla::AvailableMemoryTracker::Init(); #ifdef XP_UNIX // Discover the current value of the umask, and save it where // nsSystemInfo::Init can retrieve it when necessary. There is no way // to read the umask without changing it, and the setting is process- // global, so this must be done while we are still single-threaded; the // nsSystemInfo object is typically created much later, when some piece // of chrome JS wants it. The system call is specified as unable to fail. nsSystemInfo::gUserUmask = ::umask(0777); ::umask(nsSystemInfo::gUserUmask); #endif // Set up chromium libs NS_ASSERTION(!sExitManager && !sMessageLoop, "Bad logic!"); if (!AtExitManager::AlreadyRegistered()) { sExitManager = new AtExitManager(); } MessageLoop* messageLoop = MessageLoop::current(); if (!messageLoop) { sMessageLoop = new MessageLoopForUI(MessageLoop::TYPE_MOZILLA_PARENT); sMessageLoop->set_thread_name("Gecko"); // Set experimental values for main thread hangs: // 128ms for transient hangs and 8192ms for permanent hangs sMessageLoop->set_hang_timeouts(128, 8192); } else if (messageLoop->type() == MessageLoop::TYPE_MOZILLA_CHILD) { messageLoop->set_thread_name("Gecko_Child"); messageLoop->set_hang_timeouts(128, 8192); } if (XRE_IsParentProcess() && !BrowserProcessSubThread::GetMessageLoop(BrowserProcessSubThread::IO)) { UniquePtr<BrowserProcessSubThread> ioThread = MakeUnique<BrowserProcessSubThread>(BrowserProcessSubThread::IO); base::Thread::Options options; options.message_loop_type = MessageLoop::TYPE_IO; if (NS_WARN_IF(!ioThread->StartWithOptions(options))) { return NS_ERROR_FAILURE; } sIOThread = ioThread.release(); } // Establish the main thread here. 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; } #ifndef ANDROID // If the locale hasn't already been setup by our embedder, // get us out of the "C" locale and into the system if (strcmp(setlocale(LC_ALL, nullptr), "C") == 0) { setlocale(LC_ALL, ""); } #endif #if defined(XP_UNIX) NS_StartupNativeCharsetUtils(); #endif NS_StartupLocalFile(); nsDirectoryService::RealInit(); bool value; if (aBinDirectory) { rv = aBinDirectory->IsDirectory(&value); if (NS_SUCCEEDED(rv) && value) { nsDirectoryService::gService->Set(NS_XPCOM_INIT_CURRENT_PROCESS_DIR, aBinDirectory); } } if (aAppFileLocationProvider) { rv = nsDirectoryService::gService->RegisterProvider(aAppFileLocationProvider); if (NS_FAILED(rv)) { return rv; } } nsCOMPtr<nsIFile> xpcomLib; nsDirectoryService::gService->Get(NS_GRE_BIN_DIR, NS_GET_IID(nsIFile), getter_AddRefs(xpcomLib)); MOZ_ASSERT(xpcomLib); // set gGREBinPath nsAutoString path; xpcomLib->GetPath(path); gGREBinPath = ToNewUnicode(path); xpcomLib->AppendNative(nsDependentCString(XPCOM_DLL)); nsDirectoryService::gService->Set(NS_XPCOM_LIBRARY_FILE, xpcomLib); if (!mozilla::Omnijar::IsInitialized()) { mozilla::Omnijar::Init(); } if ((sCommandLineWasInitialized = !CommandLine::IsInitialized())) { #ifdef OS_WIN CommandLine::Init(0, nullptr); #else nsCOMPtr<nsIFile> binaryFile; nsDirectoryService::gService->Get(NS_XPCOM_CURRENT_PROCESS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(binaryFile)); if (NS_WARN_IF(!binaryFile)) { return NS_ERROR_FAILURE; } rv = binaryFile->AppendNative(NS_LITERAL_CSTRING("nonexistent-executable")); if (NS_WARN_IF(NS_FAILED(rv))) { return rv; } nsCString binaryPath; rv = binaryFile->GetNativePath(binaryPath); if (NS_WARN_IF(NS_FAILED(rv))) { return rv; } static char const* const argv = { strdup(binaryPath.get()) }; CommandLine::Init(1, &argv); #endif } NS_ASSERTION(nsComponentManagerImpl::gComponentManager == nullptr, "CompMgr not null at init"); // Create the Component/Service Manager nsComponentManagerImpl::gComponentManager = new nsComponentManagerImpl(); NS_ADDREF(nsComponentManagerImpl::gComponentManager); // Global cycle collector initialization. if (!nsCycleCollector_init()) { return NS_ERROR_UNEXPECTED; } // And start it up for this thread too. nsCycleCollector_startup(); // Register ICU memory functions. This really shouldn't be necessary: the // JS engine should do this on its own inside JS_Init, and memory-reporting // code should call a JSAPI function to observe ICU memory usage. But we // can't define the alloc/free functions in the JS engine, because it can't // depend on the XPCOM-based memory reporting goop. So for now, we have // this oddness. mozilla::SetICUMemoryFunctions(); // Do the same for libogg. ogg_set_mem_functions(OggReporter::CountingMalloc, OggReporter::CountingCalloc, OggReporter::CountingRealloc, OggReporter::CountingFree); #if defined(MOZ_VPX) && !defined(MOZ_VPX_NO_MEM_REPORTING) // And for VPX. vpx_mem_set_functions(VPXReporter::CountingMalloc, VPXReporter::CountingCalloc, VPXReporter::CountingRealloc, VPXReporter::CountingFree, memcpy, memset, memmove); #endif #if EXPOSE_INTL_API && defined(MOZ_ICU_DATA_ARCHIVE) nsCOMPtr<nsIFile> greDir; nsDirectoryService::gService->Get(NS_GRE_DIR, NS_GET_IID(nsIFile), getter_AddRefs(greDir)); MOZ_ASSERT(greDir); nsAutoCString nativeGREPath; greDir->GetNativePath(nativeGREPath); u_setDataDirectory(nativeGREPath.get()); #endif // Initialize the JS engine. const char* jsInitFailureReason = JS_InitWithFailureDiagnostic(); if (jsInitFailureReason) { NS_RUNTIMEABORT(jsInitFailureReason); } sInitializedJS = true; // Init AbstractThread. AbstractThread::InitStatics(); rv = nsComponentManagerImpl::gComponentManager->Init(); if (NS_FAILED(rv)) { NS_RELEASE(nsComponentManagerImpl::gComponentManager); return rv; } if (aResult) { NS_ADDREF(*aResult = nsComponentManagerImpl::gComponentManager); } // The iimanager constructor searches and registers XPT files. // (We trigger the singleton's lazy construction here to make that happen.) (void)XPTInterfaceInfoManager::GetSingleton(); // After autoreg, but before we actually instantiate any components, // add any services listed in the "xpcom-directory-providers" category // to the directory service. nsDirectoryService::gService->RegisterCategoryProviders(); // Init SharedThreadPool (which needs the service manager). SharedThreadPool::InitStatics(); // Force layout to spin up so that nsContentUtils is available for cx stack // munging. Note that layout registers a number of static atoms, and also // seals the static atom table, so NS_RegisterStaticAtom may not be called // beyond this point. nsCOMPtr<nsISupports> componentLoader = do_GetService("@mozilla.org/moz/jsloader;1"); mozilla::scache::StartupCache::GetSingleton(); mozilla::AvailableMemoryTracker::Activate(); // Notify observers of xpcom autoregistration start NS_CreateServicesFromCategory(NS_XPCOM_STARTUP_CATEGORY, nullptr, NS_XPCOM_STARTUP_OBSERVER_ID); #ifdef XP_WIN CreateAnonTempFileRemover(); #endif // We only want the SystemMemoryReporter running in one process, because it // profiles the entire system. The main process is the obvious place for // it. if (XRE_IsParentProcess()) { mozilla::SystemMemoryReporter::Init(); } // The memory reporter manager is up and running -- register our reporters. RegisterStrongMemoryReporter(new ICUReporter()); RegisterStrongMemoryReporter(new OggReporter()); #ifdef MOZ_VPX RegisterStrongMemoryReporter(new VPXReporter()); #endif mozilla::Telemetry::Init(); mozilla::HangMonitor::Startup(); mozilla::BackgroundHangMonitor::Startup(); const MessageLoop* const loop = MessageLoop::current(); sMainHangMonitor = new mozilla::BackgroundHangMonitor( loop->thread_name().c_str(), loop->transient_hang_timeout(), loop->permanent_hang_timeout()); return NS_OK; } EXPORT_XPCOM_API(nsresult) NS_InitMinimalXPCOM() { mozPoisonValueInit(); NS_SetMainThread(); mozilla::TimeStamp::Startup(); NS_LogInit(); NS_InitAtomTable(); mozilla::LogModule::Init(); char aLocal; profiler_init(&aLocal); nsresult 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; } // Create the Component/Service Manager nsComponentManagerImpl::gComponentManager = new nsComponentManagerImpl(); NS_ADDREF(nsComponentManagerImpl::gComponentManager); rv = nsComponentManagerImpl::gComponentManager->Init(); if (NS_FAILED(rv)) { NS_RELEASE(nsComponentManagerImpl::gComponentManager); return rv; } // Global cycle collector initialization. if (!nsCycleCollector_init()) { return NS_ERROR_UNEXPECTED; } AbstractThread::InitStatics(); SharedThreadPool::InitStatics(); mozilla::Telemetry::Init(); mozilla::HangMonitor::Startup(); mozilla::BackgroundHangMonitor::Startup(); return NS_OK; } // // NS_ShutdownXPCOM() // // The shutdown sequence for xpcom would be // // - Notify "xpcom-shutdown" for modules to release primary (root) references // - Shutdown XPCOM timers // - Notify "xpcom-shutdown-threads" for thread joins // - Shutdown the event queues // - Release the Global Service Manager // - Release all service instances held by the global service manager // - Release the Global Service Manager itself // - Release the Component Manager // - Release all factories cached by the Component Manager // - Notify module loaders to shut down // - Unload Libraries // - Release Contractid Cache held by Component Manager // - Release dll abstraction held by Component Manager // - Release the Registry held by Component Manager // - Finally, release the component manager itself // EXPORT_XPCOM_API(nsresult) NS_ShutdownXPCOM(nsIServiceManager* aServMgr) { return mozilla::ShutdownXPCOM(aServMgr); } namespace mozilla { void SetICUMemoryFunctions() { static bool sICUReporterInitialized = false; if (!sICUReporterInitialized) { if (!JS_SetICUMemoryFunctions(ICUReporter::Alloc, ICUReporter::Realloc, ICUReporter::Free)) { NS_RUNTIMEABORT("JS_SetICUMemoryFunctions failed."); } sICUReporterInitialized = true; } } nsresult ShutdownXPCOM(nsIServiceManager* aServMgr) { // Make sure the hang monitor is enabled for shutdown. HangMonitor::NotifyActivity(); if (!NS_IsMainThread()) { NS_RUNTIMEABORT("Shutdown on wrong thread"); } nsresult rv; nsCOMPtr<nsISimpleEnumerator> moduleLoaders; // 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) { mozilla::KillClearOnShutdown(ShutdownPhase::WillShutdown); observerService->NotifyObservers(nullptr, NS_XPCOM_WILL_SHUTDOWN_OBSERVER_ID, nullptr); nsCOMPtr<nsIServiceManager> mgr; rv = NS_GetServiceManager(getter_AddRefs(mgr)); if (NS_SUCCEEDED(rv)) { mozilla::KillClearOnShutdown(ShutdownPhase::Shutdown); 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); gfxPlatform::ShutdownLayersIPC(); mozilla::dom::VideoDecoderManagerChild::Shutdown(); mozilla::scache::StartupCache::DeleteSingleton(); if (observerService) { mozilla::KillClearOnShutdown(ShutdownPhase::ShutdownThreads); 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); // 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); HangMonitor::NotifyActivity(); // Late-write checks needs to find the profile directory, so it has to // be initialized before mozilla::services::Shutdown or (because of // xpcshell tests replacing the service) modules being unloaded. mozilla::InitLateWriteChecks(); // We save the "xpcom-shutdown-loaders" observers to notify after // the observerservice is gone. if (observerService) { mozilla::KillClearOnShutdown(ShutdownPhase::ShutdownLoaders); observerService->EnumerateObservers(NS_XPCOM_SHUTDOWN_LOADERS_OBSERVER_ID, getter_AddRefs(moduleLoaders)); observerService->Shutdown(); } } // Free ClearOnShutdown()'ed smart pointers. This needs to happen *after* // we've finished notifying observers of XPCOM shutdown, because shutdown // observers themselves might call ClearOnShutdown(). mozilla::KillClearOnShutdown(ShutdownPhase::ShutdownFinal); // XPCOM is officially in shutdown mode NOW // Set this only after the observers have been notified as this // will cause servicemanager to become inaccessible. mozilla::services::Shutdown(); // We may have AddRef'd for the caller of NS_InitXPCOM, so release it // here again: NS_IF_RELEASE(aServMgr); // Shutdown global servicemanager if (nsComponentManagerImpl::gComponentManager) { nsComponentManagerImpl::gComponentManager->FreeServices(); } // Release the directory service nsDirectoryService::gService = nullptr; free(gGREBinPath); gGREBinPath = nullptr; if (moduleLoaders) { bool more; nsCOMPtr<nsISupports> el; while (NS_SUCCEEDED(moduleLoaders->HasMoreElements(&more)) && more) { moduleLoaders->GetNext(getter_AddRefs(el)); // Don't worry about weak-reference observers here: there is // no reason for weak-ref observers to register for // xpcom-shutdown-loaders // FIXME: This can cause harmless writes from sqlite committing // log files. We have to ignore them before we can move // the mozilla::PoisonWrite call before this point. See bug // 834945 for the details. nsCOMPtr<nsIObserver> obs(do_QueryInterface(el)); if (obs) { obs->Observe(nullptr, NS_XPCOM_SHUTDOWN_LOADERS_OBSERVER_ID, nullptr); } } moduleLoaders = nullptr; } bool shutdownCollect; #ifdef NS_FREE_PERMANENT_DATA shutdownCollect = true; #else shutdownCollect = !!PR_GetEnv("MOZ_CC_RUN_DURING_SHUTDOWN"); #endif nsCycleCollector_shutdown(shutdownCollect); PROFILER_MARKER("Shutdown xpcom"); // If we are doing any shutdown checks, poison writes. if (gShutdownChecks != SCM_NOTHING) { #ifdef XP_MACOSX mozilla::OnlyReportDirtyWrites(); #endif /* XP_MACOSX */ mozilla::BeginLateWriteChecks(); } // Shutdown nsLocalFile string conversion NS_ShutdownLocalFile(); #ifdef XP_UNIX NS_ShutdownNativeCharsetUtils(); #endif // 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 ..."); } #ifdef MOZ_ENABLE_PROFILER_SPS // In optimized builds we don't do shutdown collections by default, so // uncollected (garbage) objects may keep the nsXPConnect singleton alive, // and its XPCJSContext along with it. However, we still destroy various // bits of state in JS_ShutDown(), so we need to make sure the profiler // can't access them when it shuts down. This call nulls out the // JS pseudo-stack's internal reference to the main thread JSContext, // duplicating the call in XPCJSContext::~XPCJSContext() in case that // never fired. if (PseudoStack* stack = mozilla_get_pseudo_stack()) { stack->sampleContext(nullptr); } #endif if (sInitializedJS) { // Shut down the JS engine. JS_ShutDown(); sInitializedJS = false; } // Release our own singletons // Do this _after_ shutting down the component manager, because the // JS component loader will use XPConnect to call nsIModule::canUnload, // and that will spin up the InterfaceInfoManager again -- bad mojo XPTInterfaceInfoManager::FreeInterfaceInfoManager(); // 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(); NS_ShutdownAtomTable(); NS_IF_RELEASE(gDebug); delete sIOThread; sIOThread = nullptr; delete sMessageLoop; sMessageLoop = nullptr; if (sCommandLineWasInitialized) { CommandLine::Terminate(); sCommandLineWasInitialized = false; } delete sExitManager; sExitManager = nullptr; Omnijar::CleanUp(); HangMonitor::Shutdown(); delete sMainHangMonitor; sMainHangMonitor = nullptr; BackgroundHangMonitor::Shutdown(); profiler_shutdown(); NS_LogTerm(); #if defined(MOZ_WIDGET_GONK) // This _exit(0) call is intended to be temporary, to get shutdown leak // checking working on non-B2G platforms. // On debug B2G, the child process crashes very late. Instead, just // give up so at least we exit cleanly. See bug 1071866. if (XRE_IsContentProcess()) { NS_WARNING("Exiting child process early!"); _exit(0); } #endif return NS_OK; } } // namespace mozilla