6793 lines
187 KiB
C++
6793 lines
187 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WorkerPrivate.h"
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#include "amIAddonManager.h"
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#include "nsIClassInfo.h"
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#include "nsIContentSecurityPolicy.h"
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#include "nsIConsoleService.h"
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#include "nsIDOMDOMException.h"
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#include "nsIDOMEvent.h"
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#include "nsIDocument.h"
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#include "nsIDocShell.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIMemoryReporter.h"
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#include "nsINetworkInterceptController.h"
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#include "nsIPermissionManager.h"
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#include "nsIScriptError.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsIScriptTimeoutHandler.h"
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#include "nsITabChild.h"
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#include "nsITextToSubURI.h"
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#include "nsIThreadInternal.h"
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#include "nsITimer.h"
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#include "nsIURI.h"
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#include "nsIURL.h"
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#include "nsIWeakReferenceUtils.h"
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#include "nsIWorkerDebugger.h"
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#include "nsIXPConnect.h"
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#include "nsPIDOMWindow.h"
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#include "nsGlobalWindow.h"
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#include <algorithm>
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#include "ImageContainer.h"
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#include "jsfriendapi.h"
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#include "js/MemoryMetrics.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/ContentEvents.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/Likely.h"
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#include "mozilla/LoadContext.h"
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#include "mozilla/Move.h"
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#include "mozilla/dom/BindingUtils.h"
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#include "mozilla/dom/Console.h"
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#include "mozilla/dom/DocGroup.h"
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#include "mozilla/dom/ErrorEvent.h"
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#include "mozilla/dom/ErrorEventBinding.h"
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#include "mozilla/dom/Exceptions.h"
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#include "mozilla/dom/ExtendableMessageEventBinding.h"
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#include "mozilla/dom/FunctionBinding.h"
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#include "mozilla/dom/IndexedDatabaseManager.h"
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#include "mozilla/dom/MessageEvent.h"
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#include "mozilla/dom/MessageEventBinding.h"
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#include "mozilla/dom/MessagePort.h"
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#include "mozilla/dom/MessagePortBinding.h"
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#include "mozilla/dom/Performance.h"
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#include "mozilla/dom/PMessagePort.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/PromiseDebugging.h"
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#include "mozilla/dom/PromiseNativeHandler.h"
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#include "mozilla/dom/SimpleGlobalObject.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "mozilla/dom/StructuredCloneHolder.h"
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#include "mozilla/dom/TabChild.h"
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#include "mozilla/dom/WorkerBinding.h"
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#include "mozilla/dom/WorkerDebuggerGlobalScopeBinding.h"
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#include "mozilla/dom/WorkerGlobalScopeBinding.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/ThrottledEventQueue.h"
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#include "mozilla/TimelineConsumers.h"
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#include "mozilla/WorkerTimelineMarker.h"
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#include "nsAlgorithm.h"
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#include "nsContentUtils.h"
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#include "nsCycleCollector.h"
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#include "nsError.h"
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#include "nsDOMJSUtils.h"
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#include "nsHostObjectProtocolHandler.h"
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#include "nsJSEnvironment.h"
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#include "nsJSUtils.h"
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#include "nsNetUtil.h"
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#include "nsPrintfCString.h"
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#include "nsProxyRelease.h"
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#include "nsQueryObject.h"
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#include "nsSandboxFlags.h"
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#include "nsScriptError.h"
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#include "nsUTF8Utils.h"
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#include "prthread.h"
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#include "xpcpublic.h"
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#ifdef ANDROID
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#include <android/log.h>
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#endif
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#ifdef DEBUG
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#include "nsThreadManager.h"
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#endif
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#include "Navigator.h"
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#include "Principal.h"
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#include "RuntimeService.h"
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#include "ScriptLoader.h"
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#include "ServiceWorkerEvents.h"
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#include "ServiceWorkerManager.h"
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#include "ServiceWorkerWindowClient.h"
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#include "SharedWorker.h"
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#include "WorkerDebuggerManager.h"
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#include "WorkerHolder.h"
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#include "WorkerNavigator.h"
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#include "WorkerRunnable.h"
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#include "WorkerScope.h"
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#include "WorkerThread.h"
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// JS_MaybeGC will run once every second during normal execution.
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#define PERIODIC_GC_TIMER_DELAY_SEC 1
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// A shrinking GC will run five seconds after the last event is processed.
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#define IDLE_GC_TIMER_DELAY_SEC 5
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#define PREF_WORKERS_ENABLED "dom.workers.enabled"
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static mozilla::LazyLogModule sWorkerPrivateLog("WorkerPrivate");
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static mozilla::LazyLogModule sWorkerTimeoutsLog("WorkerTimeouts");
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mozilla::LogModule*
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WorkerLog()
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{
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return sWorkerPrivateLog;
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}
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mozilla::LogModule*
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TimeoutsLog()
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{
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return sWorkerTimeoutsLog;
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}
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#define LOG(log, _args) MOZ_LOG(log, LogLevel::Debug, _args);
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using namespace mozilla;
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using namespace mozilla::dom;
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using namespace mozilla::ipc;
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USING_WORKERS_NAMESPACE
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MOZ_DEFINE_MALLOC_SIZE_OF(JsWorkerMallocSizeOf)
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#ifdef DEBUG
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BEGIN_WORKERS_NAMESPACE
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void
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AssertIsOnMainThread()
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{
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MOZ_ASSERT(NS_IsMainThread(), "Wrong thread!");
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}
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END_WORKERS_NAMESPACE
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#endif
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namespace {
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#ifdef DEBUG
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const nsIID kDEBUGWorkerEventTargetIID = {
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0xccaba3fa, 0x5be2, 0x4de2, { 0xba, 0x87, 0x3b, 0x3b, 0x5b, 0x1d, 0x5, 0xfb }
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};
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#endif
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template <class T>
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class AutoPtrComparator
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{
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typedef nsAutoPtr<T> A;
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typedef T* B;
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public:
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bool Equals(const A& a, const B& b) const {
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return a && b ? *a == *b : !a && !b ? true : false;
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}
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bool LessThan(const A& a, const B& b) const {
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return a && b ? *a < *b : b ? true : false;
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}
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};
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template <class T>
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inline AutoPtrComparator<T>
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GetAutoPtrComparator(const nsTArray<nsAutoPtr<T> >&)
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{
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return AutoPtrComparator<T>();
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}
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// Specialize this if there's some class that has multiple nsISupports bases.
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template <class T>
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struct ISupportsBaseInfo
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{
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typedef T ISupportsBase;
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};
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template <template <class> class SmartPtr, class T>
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inline void
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SwapToISupportsArray(SmartPtr<T>& aSrc,
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nsTArray<nsCOMPtr<nsISupports> >& aDest)
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{
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nsCOMPtr<nsISupports>* dest = aDest.AppendElement();
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T* raw = nullptr;
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aSrc.swap(raw);
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nsISupports* rawSupports =
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static_cast<typename ISupportsBaseInfo<T>::ISupportsBase*>(raw);
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dest->swap(rawSupports);
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}
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// This class is used to wrap any runnables that the worker receives via the
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// nsIEventTarget::Dispatch() method (either from NS_DispatchToCurrentThread or
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// from the worker's EventTarget).
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class ExternalRunnableWrapper final : public WorkerRunnable
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{
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nsCOMPtr<nsIRunnable> mWrappedRunnable;
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public:
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ExternalRunnableWrapper(WorkerPrivate* aWorkerPrivate,
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nsIRunnable* aWrappedRunnable)
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: WorkerRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount),
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mWrappedRunnable(aWrappedRunnable)
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{
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MOZ_ASSERT(aWorkerPrivate);
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MOZ_ASSERT(aWrappedRunnable);
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}
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NS_DECL_ISUPPORTS_INHERITED
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private:
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~ExternalRunnableWrapper()
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{ }
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virtual bool
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WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
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{
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nsresult rv = mWrappedRunnable->Run();
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if (NS_FAILED(rv)) {
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if (!JS_IsExceptionPending(aCx)) {
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Throw(aCx, rv);
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}
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return false;
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}
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return true;
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}
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nsresult
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Cancel() override
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{
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nsresult rv;
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nsCOMPtr<nsICancelableRunnable> cancelable =
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do_QueryInterface(mWrappedRunnable);
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MOZ_ASSERT(cancelable); // We checked this earlier!
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rv = cancelable->Cancel();
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nsresult rv2 = WorkerRunnable::Cancel();
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return NS_FAILED(rv) ? rv : rv2;
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}
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};
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struct WindowAction
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{
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nsPIDOMWindowInner* mWindow;
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bool mDefaultAction;
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MOZ_IMPLICIT WindowAction(nsPIDOMWindowInner* aWindow)
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: mWindow(aWindow), mDefaultAction(true)
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{ }
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bool
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operator==(const WindowAction& aOther) const
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{
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return mWindow == aOther.mWindow;
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}
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};
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void
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LogErrorToConsole(const WorkerErrorReport& aReport, uint64_t aInnerWindowId)
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{
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AssertIsOnMainThread();
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RefPtr<nsScriptErrorBase> scriptError = new nsScriptError();
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NS_WARNING_ASSERTION(scriptError, "Failed to create script error!");
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if (scriptError) {
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nsAutoCString category("Web Worker");
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if (NS_FAILED(scriptError->InitWithWindowID(aReport.mMessage,
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aReport.mFilename,
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aReport.mLine,
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aReport.mLineNumber,
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aReport.mColumnNumber,
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aReport.mFlags,
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category,
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aInnerWindowId))) {
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NS_WARNING("Failed to init script error!");
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scriptError = nullptr;
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for (size_t i = 0, len = aReport.mNotes.Length(); i < len; i++) {
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const WorkerErrorNote& note = aReport.mNotes.ElementAt(i);
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nsScriptErrorNote* noteObject = new nsScriptErrorNote();
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noteObject->Init(note.mMessage, note.mFilename,
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note.mLineNumber, note.mColumnNumber);
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scriptError->AddNote(noteObject);
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}
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}
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}
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nsCOMPtr<nsIConsoleService> consoleService =
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do_GetService(NS_CONSOLESERVICE_CONTRACTID);
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NS_WARNING_ASSERTION(consoleService, "Failed to get console service!");
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if (consoleService) {
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if (scriptError) {
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if (NS_SUCCEEDED(consoleService->LogMessage(scriptError))) {
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return;
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}
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NS_WARNING("LogMessage failed!");
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} else if (NS_SUCCEEDED(consoleService->LogStringMessage(
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aReport.mMessage.BeginReading()))) {
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return;
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}
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NS_WARNING("LogStringMessage failed!");
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}
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NS_ConvertUTF16toUTF8 msg(aReport.mMessage);
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NS_ConvertUTF16toUTF8 filename(aReport.mFilename);
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static const char kErrorString[] = "JS error in Web Worker: %s [%s:%u]";
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#ifdef ANDROID
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__android_log_print(ANDROID_LOG_INFO, "Gecko", kErrorString, msg.get(),
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filename.get(), aReport.mLineNumber);
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#endif
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fprintf(stderr, kErrorString, msg.get(), filename.get(), aReport.mLineNumber);
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fflush(stderr);
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}
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class MainThreadReleaseRunnable final : public Runnable
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{
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nsTArray<nsCOMPtr<nsISupports>> mDoomed;
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nsCOMPtr<nsILoadGroup> mLoadGroupToCancel;
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public:
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MainThreadReleaseRunnable(nsTArray<nsCOMPtr<nsISupports>>& aDoomed,
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nsCOMPtr<nsILoadGroup>& aLoadGroupToCancel)
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{
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mDoomed.SwapElements(aDoomed);
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mLoadGroupToCancel.swap(aLoadGroupToCancel);
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}
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NS_DECL_ISUPPORTS_INHERITED
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NS_IMETHOD
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Run() override
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{
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if (mLoadGroupToCancel) {
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mLoadGroupToCancel->Cancel(NS_BINDING_ABORTED);
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mLoadGroupToCancel = nullptr;
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}
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mDoomed.Clear();
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return NS_OK;
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}
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private:
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~MainThreadReleaseRunnable()
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{ }
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};
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class WorkerFinishedRunnable final : public WorkerControlRunnable
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{
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WorkerPrivate* mFinishedWorker;
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public:
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WorkerFinishedRunnable(WorkerPrivate* aWorkerPrivate,
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WorkerPrivate* aFinishedWorker)
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: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount),
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mFinishedWorker(aFinishedWorker)
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{ }
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private:
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virtual bool
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PreDispatch(WorkerPrivate* aWorkerPrivate) override
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{
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// Silence bad assertions.
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return true;
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}
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virtual void
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PostDispatch(WorkerPrivate* aWorkerPrivate, bool aDispatchResult) override
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{
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// Silence bad assertions.
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}
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virtual bool
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WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
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{
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nsCOMPtr<nsILoadGroup> loadGroupToCancel;
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mFinishedWorker->ForgetOverridenLoadGroup(loadGroupToCancel);
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nsTArray<nsCOMPtr<nsISupports>> doomed;
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mFinishedWorker->ForgetMainThreadObjects(doomed);
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RefPtr<MainThreadReleaseRunnable> runnable =
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new MainThreadReleaseRunnable(doomed, loadGroupToCancel);
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if (NS_FAILED(NS_DispatchToMainThread(runnable))) {
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NS_WARNING("Failed to dispatch, going to leak!");
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}
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RuntimeService* runtime = RuntimeService::GetService();
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NS_ASSERTION(runtime, "This should never be null!");
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mFinishedWorker->DisableDebugger();
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runtime->UnregisterWorker(mFinishedWorker);
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mFinishedWorker->ClearSelfRef();
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return true;
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}
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};
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class TopLevelWorkerFinishedRunnable final : public Runnable
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{
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WorkerPrivate* mFinishedWorker;
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public:
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explicit TopLevelWorkerFinishedRunnable(WorkerPrivate* aFinishedWorker)
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: mFinishedWorker(aFinishedWorker)
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{
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aFinishedWorker->AssertIsOnWorkerThread();
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}
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NS_DECL_ISUPPORTS_INHERITED
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private:
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~TopLevelWorkerFinishedRunnable() {}
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NS_IMETHOD
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Run() override
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{
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AssertIsOnMainThread();
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RuntimeService* runtime = RuntimeService::GetService();
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MOZ_ASSERT(runtime);
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mFinishedWorker->DisableDebugger();
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runtime->UnregisterWorker(mFinishedWorker);
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nsCOMPtr<nsILoadGroup> loadGroupToCancel;
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mFinishedWorker->ForgetOverridenLoadGroup(loadGroupToCancel);
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nsTArray<nsCOMPtr<nsISupports> > doomed;
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mFinishedWorker->ForgetMainThreadObjects(doomed);
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RefPtr<MainThreadReleaseRunnable> runnable =
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new MainThreadReleaseRunnable(doomed, loadGroupToCancel);
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if (NS_FAILED(NS_DispatchToCurrentThread(runnable))) {
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NS_WARNING("Failed to dispatch, going to leak!");
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}
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mFinishedWorker->ClearSelfRef();
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return NS_OK;
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}
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};
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class ModifyBusyCountRunnable final : public WorkerControlRunnable
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{
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bool mIncrease;
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public:
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ModifyBusyCountRunnable(WorkerPrivate* aWorkerPrivate, bool aIncrease)
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: WorkerControlRunnable(aWorkerPrivate, ParentThreadUnchangedBusyCount),
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mIncrease(aIncrease)
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{ }
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private:
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virtual bool
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WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
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{
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return aWorkerPrivate->ModifyBusyCount(mIncrease);
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}
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virtual void
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PostRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate, bool aRunResult)
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override
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{
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if (mIncrease) {
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WorkerControlRunnable::PostRun(aCx, aWorkerPrivate, aRunResult);
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return;
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}
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// Don't do anything here as it's possible that aWorkerPrivate has been
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// deleted.
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}
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};
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class ReportCompileErrorRunnable final : public WorkerRunnable
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{
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public:
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static void
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CreateAndDispatch(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
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{
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MOZ_ASSERT(aWorkerPrivate);
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aWorkerPrivate->AssertIsOnWorkerThread();
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RefPtr<ReportCompileErrorRunnable> runnable =
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new ReportCompileErrorRunnable(aCx, aWorkerPrivate);
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runnable->Dispatch();
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}
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private:
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ReportCompileErrorRunnable(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
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: WorkerRunnable(aWorkerPrivate, ParentThreadUnchangedBusyCount)
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{
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aWorkerPrivate->AssertIsOnWorkerThread();
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}
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void
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PostDispatch(WorkerPrivate* aWorkerPrivate, bool aDispatchResult) override
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{
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aWorkerPrivate->AssertIsOnWorkerThread();
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// Dispatch may fail if the worker was canceled, no need to report that as
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// an error, so don't call base class PostDispatch.
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}
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bool
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WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
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|
{
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if (aWorkerPrivate->IsFrozen() ||
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aWorkerPrivate->IsParentWindowPaused()) {
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MOZ_ASSERT(!IsDebuggerRunnable());
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aWorkerPrivate->QueueRunnable(this);
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return true;
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}
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|
if (aWorkerPrivate->IsSharedWorker()) {
|
|
aWorkerPrivate->BroadcastErrorToSharedWorkers(aCx, nullptr,
|
|
/* isErrorEvent */ false);
|
|
return true;
|
|
}
|
|
|
|
if (aWorkerPrivate->IsServiceWorker()) {
|
|
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
|
|
if (swm) {
|
|
swm->HandleError(aCx, aWorkerPrivate->GetPrincipal(),
|
|
aWorkerPrivate->WorkerName(),
|
|
aWorkerPrivate->ScriptURL(),
|
|
EmptyString(), EmptyString(), EmptyString(),
|
|
0, 0, JSREPORT_ERROR, JSEXN_ERR);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
if (!aWorkerPrivate->IsAcceptingEvents()) {
|
|
return true;
|
|
}
|
|
|
|
RefPtr<Event> event =
|
|
Event::Constructor(aWorkerPrivate, NS_LITERAL_STRING("error"),
|
|
EventInit());
|
|
event->SetTrusted(true);
|
|
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
aWorkerPrivate->DispatchDOMEvent(nullptr, event, nullptr, &status);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class CompileScriptRunnable final : public WorkerRunnable
|
|
{
|
|
nsString mScriptURL;
|
|
|
|
public:
|
|
explicit CompileScriptRunnable(WorkerPrivate* aWorkerPrivate,
|
|
const nsAString& aScriptURL)
|
|
: WorkerRunnable(aWorkerPrivate),
|
|
mScriptURL(aScriptURL)
|
|
{ }
|
|
|
|
private:
|
|
// We can't implement PreRun effectively, because at the point when that would
|
|
// run we have not yet done our load so don't know things like our final
|
|
// principal and whatnot.
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
aWorkerPrivate->AssertIsOnWorkerThread();
|
|
|
|
ErrorResult rv;
|
|
scriptloader::LoadMainScript(aWorkerPrivate, mScriptURL, WorkerScript, rv);
|
|
rv.WouldReportJSException();
|
|
// Explicitly ignore NS_BINDING_ABORTED on rv. Or more precisely, still
|
|
// return false and don't SetWorkerScriptExecutedSuccessfully() in that
|
|
// case, but don't throw anything on aCx. The idea is to not dispatch error
|
|
// events if our load is canceled with that error code.
|
|
if (rv.ErrorCodeIs(NS_BINDING_ABORTED)) {
|
|
rv.SuppressException();
|
|
return false;
|
|
}
|
|
|
|
WorkerGlobalScope* globalScope = aWorkerPrivate->GlobalScope();
|
|
if (NS_WARN_IF(!globalScope)) {
|
|
// We never got as far as calling GetOrCreateGlobalScope, or it failed.
|
|
// We have no way to enter a compartment, hence no sane way to report this
|
|
// error. :(
|
|
rv.SuppressException();
|
|
return false;
|
|
}
|
|
|
|
// Make sure to propagate exceptions from rv onto aCx, so that they will get
|
|
// reported after we return. We want to propagate just JS exceptions,
|
|
// because all the other errors are handled when the script is loaded.
|
|
// See: https://dom.spec.whatwg.org/#concept-event-fire
|
|
if (rv.Failed() && !rv.IsJSException()) {
|
|
ReportCompileErrorRunnable::CreateAndDispatch(aCx, aWorkerPrivate);
|
|
rv.SuppressException();
|
|
return false;
|
|
}
|
|
|
|
// This is a little dumb, but aCx is in the null compartment here because we
|
|
// set it up that way in our Run(), since we had not created the global at
|
|
// that point yet. So we need to enter the compartment of our global,
|
|
// because setting a pending exception on aCx involves wrapping into its
|
|
// current compartment. Luckily we have a global now.
|
|
JSAutoCompartment ac(aCx, globalScope->GetGlobalJSObject());
|
|
if (rv.MaybeSetPendingException(aCx)) {
|
|
return false;
|
|
}
|
|
|
|
aWorkerPrivate->SetWorkerScriptExecutedSuccessfully();
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class CompileDebuggerScriptRunnable final : public WorkerDebuggerRunnable
|
|
{
|
|
nsString mScriptURL;
|
|
|
|
public:
|
|
CompileDebuggerScriptRunnable(WorkerPrivate* aWorkerPrivate,
|
|
const nsAString& aScriptURL)
|
|
: WorkerDebuggerRunnable(aWorkerPrivate),
|
|
mScriptURL(aScriptURL)
|
|
{ }
|
|
|
|
private:
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
aWorkerPrivate->AssertIsOnWorkerThread();
|
|
|
|
WorkerDebuggerGlobalScope* globalScope =
|
|
aWorkerPrivate->CreateDebuggerGlobalScope(aCx);
|
|
if (!globalScope) {
|
|
NS_WARNING("Failed to make global!");
|
|
return false;
|
|
}
|
|
|
|
JS::Rooted<JSObject*> global(aCx, globalScope->GetWrapper());
|
|
|
|
ErrorResult rv;
|
|
JSAutoCompartment ac(aCx, global);
|
|
scriptloader::LoadMainScript(aWorkerPrivate, mScriptURL,
|
|
DebuggerScript, rv);
|
|
rv.WouldReportJSException();
|
|
// Explicitly ignore NS_BINDING_ABORTED on rv. Or more precisely, still
|
|
// return false and don't SetWorkerScriptExecutedSuccessfully() in that
|
|
// case, but don't throw anything on aCx. The idea is to not dispatch error
|
|
// events if our load is canceled with that error code.
|
|
if (rv.ErrorCodeIs(NS_BINDING_ABORTED)) {
|
|
rv.SuppressException();
|
|
return false;
|
|
}
|
|
// Make sure to propagate exceptions from rv onto aCx, so that they will get
|
|
// reported after we return. We do this for all failures on rv, because now
|
|
// we're using rv to track all the state we care about.
|
|
if (rv.MaybeSetPendingException(aCx)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class MessageEventRunnable final : public WorkerRunnable
|
|
, public StructuredCloneHolder
|
|
{
|
|
// This is only used for messages dispatched to a service worker.
|
|
UniquePtr<ServiceWorkerClientInfo> mEventSource;
|
|
|
|
RefPtr<PromiseNativeHandler> mHandler;
|
|
|
|
public:
|
|
MessageEventRunnable(WorkerPrivate* aWorkerPrivate,
|
|
TargetAndBusyBehavior aBehavior)
|
|
: WorkerRunnable(aWorkerPrivate, aBehavior)
|
|
, StructuredCloneHolder(CloningSupported, TransferringSupported,
|
|
StructuredCloneScope::SameProcessDifferentThread)
|
|
{
|
|
}
|
|
|
|
void
|
|
SetServiceWorkerData(UniquePtr<ServiceWorkerClientInfo>&& aSource,
|
|
PromiseNativeHandler* aHandler)
|
|
{
|
|
mEventSource = Move(aSource);
|
|
mHandler = aHandler;
|
|
}
|
|
|
|
bool
|
|
DispatchDOMEvent(JSContext* aCx, WorkerPrivate* aWorkerPrivate,
|
|
DOMEventTargetHelper* aTarget, bool aIsMainThread)
|
|
{
|
|
nsCOMPtr<nsIGlobalObject> parent = do_QueryInterface(aTarget->GetParentObject());
|
|
|
|
// For some workers without window, parent is null and we try to find it
|
|
// from the JS Context.
|
|
if (!parent) {
|
|
JS::Rooted<JSObject*> globalObject(aCx, JS::CurrentGlobalOrNull(aCx));
|
|
if (NS_WARN_IF(!globalObject)) {
|
|
return false;
|
|
}
|
|
|
|
parent = xpc::NativeGlobal(globalObject);
|
|
if (NS_WARN_IF(!parent)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(parent);
|
|
|
|
JS::Rooted<JS::Value> messageData(aCx);
|
|
ErrorResult rv;
|
|
|
|
UniquePtr<AbstractTimelineMarker> start;
|
|
UniquePtr<AbstractTimelineMarker> end;
|
|
RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get();
|
|
bool isTimelineRecording = timelines && !timelines->IsEmpty();
|
|
|
|
if (isTimelineRecording) {
|
|
start = MakeUnique<WorkerTimelineMarker>(aIsMainThread
|
|
? ProfileTimelineWorkerOperationType::DeserializeDataOnMainThread
|
|
: ProfileTimelineWorkerOperationType::DeserializeDataOffMainThread,
|
|
MarkerTracingType::START);
|
|
}
|
|
|
|
Read(parent, aCx, &messageData, rv);
|
|
|
|
if (isTimelineRecording) {
|
|
end = MakeUnique<WorkerTimelineMarker>(aIsMainThread
|
|
? ProfileTimelineWorkerOperationType::DeserializeDataOnMainThread
|
|
: ProfileTimelineWorkerOperationType::DeserializeDataOffMainThread,
|
|
MarkerTracingType::END);
|
|
timelines->AddMarkerForAllObservedDocShells(start);
|
|
timelines->AddMarkerForAllObservedDocShells(end);
|
|
}
|
|
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
xpc::Throw(aCx, rv.StealNSResult());
|
|
return false;
|
|
}
|
|
|
|
Sequence<OwningNonNull<MessagePort>> ports;
|
|
if (!TakeTransferredPortsAsSequence(ports)) {
|
|
return false;
|
|
}
|
|
|
|
nsCOMPtr<nsIDOMEvent> domEvent;
|
|
RefPtr<ExtendableMessageEvent> extendableEvent;
|
|
// For messages dispatched to service worker, use ExtendableMessageEvent
|
|
// https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#extendablemessage-event-section
|
|
if (mEventSource) {
|
|
RefPtr<ServiceWorkerClient> client =
|
|
new ServiceWorkerWindowClient(aTarget, *mEventSource);
|
|
|
|
RootedDictionary<ExtendableMessageEventInit> init(aCx);
|
|
|
|
init.mBubbles = false;
|
|
init.mCancelable = false;
|
|
|
|
init.mData = messageData;
|
|
init.mPorts = ports;
|
|
init.mSource.SetValue().SetAsClient() = client;
|
|
|
|
ErrorResult rv;
|
|
extendableEvent = ExtendableMessageEvent::Constructor(
|
|
aTarget, NS_LITERAL_STRING("message"), init, rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
rv.SuppressException();
|
|
return false;
|
|
}
|
|
|
|
domEvent = do_QueryObject(extendableEvent);
|
|
} else {
|
|
RefPtr<MessageEvent> event = new MessageEvent(aTarget, nullptr, nullptr);
|
|
event->InitMessageEvent(nullptr,
|
|
NS_LITERAL_STRING("message"),
|
|
false /* non-bubbling */,
|
|
false /* cancelable */,
|
|
messageData,
|
|
EmptyString(),
|
|
EmptyString(),
|
|
nullptr,
|
|
ports);
|
|
domEvent = do_QueryObject(event);
|
|
}
|
|
|
|
domEvent->SetTrusted(true);
|
|
|
|
nsEventStatus dummy = nsEventStatus_eIgnore;
|
|
aTarget->DispatchDOMEvent(nullptr, domEvent, nullptr, &dummy);
|
|
|
|
if (extendableEvent && mHandler) {
|
|
RefPtr<Promise> waitUntilPromise = extendableEvent->GetPromise();
|
|
if (!waitUntilPromise) {
|
|
waitUntilPromise = Promise::Resolve(parent, aCx,
|
|
JS::UndefinedHandleValue, rv);
|
|
MOZ_RELEASE_ASSERT(!rv.Failed());
|
|
}
|
|
|
|
MOZ_ASSERT(waitUntilPromise);
|
|
|
|
waitUntilPromise->AppendNativeHandler(mHandler);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
if (mBehavior == ParentThreadUnchangedBusyCount) {
|
|
// Don't fire this event if the JS object has been disconnected from the
|
|
// private object.
|
|
if (!aWorkerPrivate->IsAcceptingEvents()) {
|
|
return true;
|
|
}
|
|
|
|
if (aWorkerPrivate->IsFrozen() ||
|
|
aWorkerPrivate->IsParentWindowPaused()) {
|
|
MOZ_ASSERT(!IsDebuggerRunnable());
|
|
aWorkerPrivate->QueueRunnable(this);
|
|
return true;
|
|
}
|
|
|
|
aWorkerPrivate->AssertInnerWindowIsCorrect();
|
|
|
|
return DispatchDOMEvent(aCx, aWorkerPrivate, aWorkerPrivate,
|
|
!aWorkerPrivate->GetParent());
|
|
}
|
|
|
|
MOZ_ASSERT(aWorkerPrivate == GetWorkerPrivateFromContext(aCx));
|
|
|
|
return DispatchDOMEvent(aCx, aWorkerPrivate, aWorkerPrivate->GlobalScope(),
|
|
false);
|
|
}
|
|
};
|
|
|
|
class DebuggerMessageEventRunnable : public WorkerDebuggerRunnable {
|
|
nsString mMessage;
|
|
|
|
public:
|
|
DebuggerMessageEventRunnable(WorkerPrivate* aWorkerPrivate,
|
|
const nsAString& aMessage)
|
|
: WorkerDebuggerRunnable(aWorkerPrivate),
|
|
mMessage(aMessage)
|
|
{
|
|
}
|
|
|
|
private:
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
WorkerDebuggerGlobalScope* globalScope = aWorkerPrivate->DebuggerGlobalScope();
|
|
MOZ_ASSERT(globalScope);
|
|
|
|
JS::Rooted<JSString*> message(aCx, JS_NewUCStringCopyN(aCx, mMessage.get(),
|
|
mMessage.Length()));
|
|
if (!message) {
|
|
return false;
|
|
}
|
|
JS::Rooted<JS::Value> data(aCx, JS::StringValue(message));
|
|
|
|
RefPtr<MessageEvent> event = new MessageEvent(globalScope, nullptr,
|
|
nullptr);
|
|
event->InitMessageEvent(nullptr,
|
|
NS_LITERAL_STRING("message"),
|
|
false, // canBubble
|
|
true, // cancelable
|
|
data,
|
|
EmptyString(),
|
|
EmptyString(),
|
|
nullptr,
|
|
Sequence<OwningNonNull<MessagePort>>());
|
|
event->SetTrusted(true);
|
|
|
|
nsCOMPtr<nsIDOMEvent> domEvent = do_QueryObject(event);
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
globalScope->DispatchDOMEvent(nullptr, domEvent, nullptr, &status);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class NotifyRunnable final : public WorkerControlRunnable
|
|
{
|
|
Status mStatus;
|
|
|
|
public:
|
|
NotifyRunnable(WorkerPrivate* aWorkerPrivate, Status aStatus)
|
|
: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount),
|
|
mStatus(aStatus)
|
|
{
|
|
MOZ_ASSERT(aStatus == Closing || aStatus == Terminating ||
|
|
aStatus == Canceling || aStatus == Killing);
|
|
}
|
|
|
|
private:
|
|
virtual bool
|
|
PreDispatch(WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
aWorkerPrivate->AssertIsOnParentThread();
|
|
return aWorkerPrivate->ModifyBusyCount(true);
|
|
}
|
|
|
|
virtual void
|
|
PostDispatch(WorkerPrivate* aWorkerPrivate, bool aDispatchResult) override
|
|
{
|
|
aWorkerPrivate->AssertIsOnParentThread();
|
|
if (!aDispatchResult) {
|
|
// We couldn't dispatch to the worker, which means it's already dead.
|
|
// Undo the busy count modification.
|
|
aWorkerPrivate->ModifyBusyCount(false);
|
|
}
|
|
}
|
|
|
|
virtual void
|
|
PostRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate, bool aRunResult)
|
|
override
|
|
{
|
|
aWorkerPrivate->ModifyBusyCountFromWorker(false);
|
|
return;
|
|
}
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
bool ok = aWorkerPrivate->NotifyInternal(aCx, mStatus);
|
|
MOZ_ASSERT(!JS_IsExceptionPending(aCx));
|
|
return ok;
|
|
}
|
|
};
|
|
|
|
class CloseRunnable final : public WorkerControlRunnable
|
|
{
|
|
public:
|
|
explicit CloseRunnable(WorkerPrivate* aWorkerPrivate)
|
|
: WorkerControlRunnable(aWorkerPrivate, ParentThreadUnchangedBusyCount)
|
|
{ }
|
|
|
|
private:
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
return aWorkerPrivate->Close();
|
|
}
|
|
};
|
|
|
|
class FreezeRunnable final : public WorkerControlRunnable
|
|
{
|
|
public:
|
|
explicit FreezeRunnable(WorkerPrivate* aWorkerPrivate)
|
|
: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount)
|
|
{ }
|
|
|
|
private:
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
return aWorkerPrivate->FreezeInternal();
|
|
}
|
|
};
|
|
|
|
class ThawRunnable final : public WorkerControlRunnable
|
|
{
|
|
public:
|
|
explicit ThawRunnable(WorkerPrivate* aWorkerPrivate)
|
|
: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount)
|
|
{ }
|
|
|
|
private:
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
return aWorkerPrivate->ThawInternal();
|
|
}
|
|
};
|
|
|
|
class ReportErrorToConsoleRunnable final : public WorkerRunnable
|
|
{
|
|
const char* mMessage;
|
|
|
|
public:
|
|
// aWorkerPrivate is the worker thread we're on (or the main thread, if null)
|
|
static void
|
|
Report(WorkerPrivate* aWorkerPrivate, const char* aMessage)
|
|
{
|
|
if (aWorkerPrivate) {
|
|
aWorkerPrivate->AssertIsOnWorkerThread();
|
|
} else {
|
|
AssertIsOnMainThread();
|
|
}
|
|
|
|
// Now fire a runnable to do the same on the parent's thread if we can.
|
|
if (aWorkerPrivate) {
|
|
RefPtr<ReportErrorToConsoleRunnable> runnable =
|
|
new ReportErrorToConsoleRunnable(aWorkerPrivate, aMessage);
|
|
runnable->Dispatch();
|
|
return;
|
|
}
|
|
|
|
// Log a warning to the console.
|
|
nsContentUtils::ReportToConsole(nsIScriptError::warningFlag,
|
|
NS_LITERAL_CSTRING("DOM"),
|
|
nullptr,
|
|
nsContentUtils::eDOM_PROPERTIES,
|
|
aMessage);
|
|
}
|
|
|
|
private:
|
|
ReportErrorToConsoleRunnable(WorkerPrivate* aWorkerPrivate, const char* aMessage)
|
|
: WorkerRunnable(aWorkerPrivate, ParentThreadUnchangedBusyCount),
|
|
mMessage(aMessage)
|
|
{ }
|
|
|
|
virtual void
|
|
PostDispatch(WorkerPrivate* aWorkerPrivate, bool aDispatchResult) override
|
|
{
|
|
aWorkerPrivate->AssertIsOnWorkerThread();
|
|
|
|
// Dispatch may fail if the worker was canceled, no need to report that as
|
|
// an error, so don't call base class PostDispatch.
|
|
}
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
WorkerPrivate* parent = aWorkerPrivate->GetParent();
|
|
MOZ_ASSERT_IF(!parent, NS_IsMainThread());
|
|
Report(parent, mMessage);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class ReportErrorRunnable final : public WorkerRunnable
|
|
{
|
|
WorkerErrorReport mReport;
|
|
|
|
public:
|
|
// aWorkerPrivate is the worker thread we're on (or the main thread, if null)
|
|
// aTarget is the worker object that we are going to fire an error at
|
|
// (if any).
|
|
static void
|
|
ReportError(JSContext* aCx, WorkerPrivate* aWorkerPrivate,
|
|
bool aFireAtScope, WorkerPrivate* aTarget,
|
|
const WorkerErrorReport& aReport, uint64_t aInnerWindowId,
|
|
JS::Handle<JS::Value> aException = JS::NullHandleValue)
|
|
{
|
|
if (aWorkerPrivate) {
|
|
aWorkerPrivate->AssertIsOnWorkerThread();
|
|
} else {
|
|
AssertIsOnMainThread();
|
|
}
|
|
|
|
// We should not fire error events for warnings but instead make sure that
|
|
// they show up in the error console.
|
|
if (!JSREPORT_IS_WARNING(aReport.mFlags)) {
|
|
// First fire an ErrorEvent at the worker.
|
|
RootedDictionary<ErrorEventInit> init(aCx);
|
|
|
|
if (aReport.mMutedError) {
|
|
init.mMessage.AssignLiteral("Script error.");
|
|
} else {
|
|
init.mMessage = aReport.mMessage;
|
|
init.mFilename = aReport.mFilename;
|
|
init.mLineno = aReport.mLineNumber;
|
|
init.mError = aException;
|
|
}
|
|
|
|
init.mCancelable = true;
|
|
init.mBubbles = false;
|
|
|
|
if (aTarget) {
|
|
RefPtr<ErrorEvent> event =
|
|
ErrorEvent::Constructor(aTarget, NS_LITERAL_STRING("error"), init);
|
|
event->SetTrusted(true);
|
|
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
aTarget->DispatchDOMEvent(nullptr, event, nullptr, &status);
|
|
|
|
if (status == nsEventStatus_eConsumeNoDefault) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Now fire an event at the global object, but don't do that if the error
|
|
// code is too much recursion and this is the same script threw the error.
|
|
// XXXbz the interaction of this with worker errors seems kinda broken.
|
|
// An overrecursion in the debugger or debugger sandbox will get turned
|
|
// into an error event on our parent worker!
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1271441 tracks making this
|
|
// better.
|
|
if (aFireAtScope &&
|
|
(aTarget || aReport.mErrorNumber != JSMSG_OVER_RECURSED)) {
|
|
JS::Rooted<JSObject*> global(aCx, JS::CurrentGlobalOrNull(aCx));
|
|
NS_ASSERTION(global, "This should never be null!");
|
|
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
nsIScriptGlobalObject* sgo;
|
|
|
|
if (aWorkerPrivate) {
|
|
WorkerGlobalScope* globalScope = nullptr;
|
|
UNWRAP_OBJECT(WorkerGlobalScope, &global, globalScope);
|
|
|
|
if (!globalScope) {
|
|
WorkerDebuggerGlobalScope* globalScope = nullptr;
|
|
UNWRAP_OBJECT(WorkerDebuggerGlobalScope, &global, globalScope);
|
|
|
|
MOZ_ASSERT_IF(globalScope, globalScope->GetWrapperPreserveColor() == global);
|
|
if (globalScope || IsDebuggerSandbox(global)) {
|
|
aWorkerPrivate->ReportErrorToDebugger(aReport.mFilename, aReport.mLineNumber,
|
|
aReport.mMessage);
|
|
return;
|
|
}
|
|
|
|
MOZ_ASSERT(SimpleGlobalObject::SimpleGlobalType(global) ==
|
|
SimpleGlobalObject::GlobalType::BindingDetail);
|
|
// XXXbz We should really log this to console, but unwinding out of
|
|
// this stuff without ending up firing any events is ... hard. Just
|
|
// return for now.
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1271441 tracks
|
|
// making this better.
|
|
return;
|
|
}
|
|
|
|
MOZ_ASSERT(globalScope->GetWrapperPreserveColor() == global);
|
|
nsIDOMEventTarget* target = static_cast<nsIDOMEventTarget*>(globalScope);
|
|
|
|
RefPtr<ErrorEvent> event =
|
|
ErrorEvent::Constructor(aTarget, NS_LITERAL_STRING("error"), init);
|
|
event->SetTrusted(true);
|
|
|
|
if (NS_FAILED(EventDispatcher::DispatchDOMEvent(target, nullptr,
|
|
event, nullptr,
|
|
&status))) {
|
|
NS_WARNING("Failed to dispatch worker thread error event!");
|
|
status = nsEventStatus_eIgnore;
|
|
}
|
|
}
|
|
else if ((sgo = nsJSUtils::GetStaticScriptGlobal(global))) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
if (NS_FAILED(sgo->HandleScriptError(init, &status))) {
|
|
NS_WARNING("Failed to dispatch main thread error event!");
|
|
status = nsEventStatus_eIgnore;
|
|
}
|
|
}
|
|
|
|
// Was preventDefault() called?
|
|
if (status == nsEventStatus_eConsumeNoDefault) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Now fire a runnable to do the same on the parent's thread if we can.
|
|
if (aWorkerPrivate) {
|
|
RefPtr<ReportErrorRunnable> runnable =
|
|
new ReportErrorRunnable(aWorkerPrivate, aReport);
|
|
runnable->Dispatch();
|
|
return;
|
|
}
|
|
|
|
// Otherwise log an error to the error console.
|
|
LogErrorToConsole(aReport, aInnerWindowId);
|
|
}
|
|
|
|
private:
|
|
ReportErrorRunnable(WorkerPrivate* aWorkerPrivate,
|
|
const WorkerErrorReport& aReport)
|
|
: WorkerRunnable(aWorkerPrivate, ParentThreadUnchangedBusyCount),
|
|
mReport(aReport)
|
|
{ }
|
|
|
|
virtual void
|
|
PostDispatch(WorkerPrivate* aWorkerPrivate, bool aDispatchResult) override
|
|
{
|
|
aWorkerPrivate->AssertIsOnWorkerThread();
|
|
|
|
// Dispatch may fail if the worker was canceled, no need to report that as
|
|
// an error, so don't call base class PostDispatch.
|
|
}
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
JS::Rooted<JSObject*> target(aCx, aWorkerPrivate->GetWrapper());
|
|
|
|
uint64_t innerWindowId;
|
|
bool fireAtScope = true;
|
|
|
|
bool workerIsAcceptingEvents = aWorkerPrivate->IsAcceptingEvents();
|
|
|
|
WorkerPrivate* parent = aWorkerPrivate->GetParent();
|
|
if (parent) {
|
|
innerWindowId = 0;
|
|
}
|
|
else {
|
|
AssertIsOnMainThread();
|
|
|
|
if (aWorkerPrivate->IsFrozen() ||
|
|
aWorkerPrivate->IsParentWindowPaused()) {
|
|
MOZ_ASSERT(!IsDebuggerRunnable());
|
|
aWorkerPrivate->QueueRunnable(this);
|
|
return true;
|
|
}
|
|
|
|
if (aWorkerPrivate->IsSharedWorker()) {
|
|
aWorkerPrivate->BroadcastErrorToSharedWorkers(aCx, &mReport,
|
|
/* isErrorEvent */ true);
|
|
return true;
|
|
}
|
|
|
|
// Service workers do not have a main thread parent global, so normal
|
|
// worker error reporting will crash. Instead, pass the error to
|
|
// the ServiceWorkerManager to report on any controlled documents.
|
|
if (aWorkerPrivate->IsServiceWorker()) {
|
|
RefPtr<ServiceWorkerManager> swm = ServiceWorkerManager::GetInstance();
|
|
if (swm) {
|
|
swm->HandleError(aCx, aWorkerPrivate->GetPrincipal(),
|
|
aWorkerPrivate->WorkerName(),
|
|
aWorkerPrivate->ScriptURL(),
|
|
mReport.mMessage,
|
|
mReport.mFilename, mReport.mLine, mReport.mLineNumber,
|
|
mReport.mColumnNumber, mReport.mFlags,
|
|
mReport.mExnType);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// The innerWindowId is only required if we are going to ReportError
|
|
// below, which is gated on this condition. The inner window correctness
|
|
// check is only going to succeed when the worker is accepting events.
|
|
if (workerIsAcceptingEvents) {
|
|
aWorkerPrivate->AssertInnerWindowIsCorrect();
|
|
innerWindowId = aWorkerPrivate->WindowID();
|
|
}
|
|
}
|
|
|
|
// Don't fire this event if the JS object has been disconnected from the
|
|
// private object.
|
|
if (!workerIsAcceptingEvents) {
|
|
return true;
|
|
}
|
|
|
|
ReportError(aCx, parent, fireAtScope, aWorkerPrivate, mReport,
|
|
innerWindowId);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class TimerRunnable final : public WorkerRunnable,
|
|
public nsITimerCallback
|
|
{
|
|
public:
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
explicit TimerRunnable(WorkerPrivate* aWorkerPrivate)
|
|
: WorkerRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount)
|
|
{ }
|
|
|
|
private:
|
|
~TimerRunnable() {}
|
|
|
|
virtual bool
|
|
PreDispatch(WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
// Silence bad assertions.
|
|
return true;
|
|
}
|
|
|
|
virtual void
|
|
PostDispatch(WorkerPrivate* aWorkerPrivate, bool aDispatchResult) override
|
|
{
|
|
// Silence bad assertions.
|
|
}
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
return aWorkerPrivate->RunExpiredTimeouts(aCx);
|
|
}
|
|
|
|
NS_IMETHOD
|
|
Notify(nsITimer* aTimer) override
|
|
{
|
|
return Run();
|
|
}
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED(TimerRunnable, WorkerRunnable, nsITimerCallback)
|
|
|
|
class DebuggerImmediateRunnable : public WorkerRunnable
|
|
{
|
|
RefPtr<dom::Function> mHandler;
|
|
|
|
public:
|
|
explicit DebuggerImmediateRunnable(WorkerPrivate* aWorkerPrivate,
|
|
dom::Function& aHandler)
|
|
: WorkerRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount),
|
|
mHandler(&aHandler)
|
|
{ }
|
|
|
|
private:
|
|
virtual bool
|
|
IsDebuggerRunnable() const override
|
|
{
|
|
return true;
|
|
}
|
|
|
|
virtual bool
|
|
PreDispatch(WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
// Silence bad assertions.
|
|
return true;
|
|
}
|
|
|
|
virtual void
|
|
PostDispatch(WorkerPrivate* aWorkerPrivate, bool aDispatchResult) override
|
|
{
|
|
// Silence bad assertions.
|
|
}
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
JS::Rooted<JSObject*> global(aCx, JS::CurrentGlobalOrNull(aCx));
|
|
JS::Rooted<JS::Value> callable(aCx, JS::ObjectValue(*mHandler->Callable()));
|
|
JS::HandleValueArray args = JS::HandleValueArray::empty();
|
|
JS::Rooted<JS::Value> rval(aCx);
|
|
if (!JS_CallFunctionValue(aCx, global, callable, args, &rval)) {
|
|
// Just return false; WorkerRunnable::Run will report the exception.
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
};
|
|
|
|
void
|
|
DummyCallback(nsITimer* aTimer, void* aClosure)
|
|
{
|
|
// Nothing!
|
|
}
|
|
|
|
class UpdateContextOptionsRunnable final : public WorkerControlRunnable
|
|
{
|
|
JS::ContextOptions mContextOptions;
|
|
|
|
public:
|
|
UpdateContextOptionsRunnable(WorkerPrivate* aWorkerPrivate,
|
|
const JS::ContextOptions& aContextOptions)
|
|
: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount),
|
|
mContextOptions(aContextOptions)
|
|
{ }
|
|
|
|
private:
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
aWorkerPrivate->UpdateContextOptionsInternal(aCx, mContextOptions);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class UpdatePreferenceRunnable final : public WorkerControlRunnable
|
|
{
|
|
WorkerPreference mPref;
|
|
bool mValue;
|
|
|
|
public:
|
|
UpdatePreferenceRunnable(WorkerPrivate* aWorkerPrivate,
|
|
WorkerPreference aPref,
|
|
bool aValue)
|
|
: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount),
|
|
mPref(aPref),
|
|
mValue(aValue)
|
|
{ }
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
aWorkerPrivate->UpdatePreferenceInternal(mPref, mValue);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class UpdateLanguagesRunnable final : public WorkerRunnable
|
|
{
|
|
nsTArray<nsString> mLanguages;
|
|
|
|
public:
|
|
UpdateLanguagesRunnable(WorkerPrivate* aWorkerPrivate,
|
|
const nsTArray<nsString>& aLanguages)
|
|
: WorkerRunnable(aWorkerPrivate),
|
|
mLanguages(aLanguages)
|
|
{ }
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
aWorkerPrivate->UpdateLanguagesInternal(mLanguages);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class UpdateJSWorkerMemoryParameterRunnable final :
|
|
public WorkerControlRunnable
|
|
{
|
|
uint32_t mValue;
|
|
JSGCParamKey mKey;
|
|
|
|
public:
|
|
UpdateJSWorkerMemoryParameterRunnable(WorkerPrivate* aWorkerPrivate,
|
|
JSGCParamKey aKey,
|
|
uint32_t aValue)
|
|
: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount),
|
|
mValue(aValue), mKey(aKey)
|
|
{ }
|
|
|
|
private:
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
aWorkerPrivate->UpdateJSWorkerMemoryParameterInternal(aCx, mKey, mValue);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class GarbageCollectRunnable final : public WorkerControlRunnable
|
|
{
|
|
bool mShrinking;
|
|
bool mCollectChildren;
|
|
|
|
public:
|
|
GarbageCollectRunnable(WorkerPrivate* aWorkerPrivate, bool aShrinking,
|
|
bool aCollectChildren)
|
|
: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount),
|
|
mShrinking(aShrinking), mCollectChildren(aCollectChildren)
|
|
{ }
|
|
|
|
private:
|
|
virtual bool
|
|
PreDispatch(WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
// Silence bad assertions, this can be dispatched from either the main
|
|
// thread or the timer thread..
|
|
return true;
|
|
}
|
|
|
|
virtual void
|
|
PostDispatch(WorkerPrivate* aWorkerPrivate, bool aDispatchResult) override
|
|
{
|
|
// Silence bad assertions, this can be dispatched from either the main
|
|
// thread or the timer thread..
|
|
}
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
aWorkerPrivate->GarbageCollectInternal(aCx, mShrinking, mCollectChildren);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class CycleCollectRunnable : public WorkerControlRunnable
|
|
{
|
|
bool mCollectChildren;
|
|
|
|
public:
|
|
CycleCollectRunnable(WorkerPrivate* aWorkerPrivate, bool aCollectChildren)
|
|
: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount),
|
|
mCollectChildren(aCollectChildren)
|
|
{ }
|
|
|
|
bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
|
|
{
|
|
aWorkerPrivate->CycleCollectInternal(mCollectChildren);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class OfflineStatusChangeRunnable : public WorkerRunnable
|
|
{
|
|
public:
|
|
OfflineStatusChangeRunnable(WorkerPrivate* aWorkerPrivate, bool aIsOffline)
|
|
: WorkerRunnable(aWorkerPrivate),
|
|
mIsOffline(aIsOffline)
|
|
{
|
|
}
|
|
|
|
bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
|
|
{
|
|
aWorkerPrivate->OfflineStatusChangeEventInternal(mIsOffline);
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
bool mIsOffline;
|
|
};
|
|
|
|
class MemoryPressureRunnable : public WorkerControlRunnable
|
|
{
|
|
public:
|
|
explicit MemoryPressureRunnable(WorkerPrivate* aWorkerPrivate)
|
|
: WorkerControlRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount)
|
|
{}
|
|
|
|
bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate)
|
|
{
|
|
aWorkerPrivate->MemoryPressureInternal();
|
|
return true;
|
|
}
|
|
};
|
|
|
|
#ifdef DEBUG
|
|
static bool
|
|
StartsWithExplicit(nsACString& s)
|
|
{
|
|
return StringBeginsWith(s, NS_LITERAL_CSTRING("explicit/"));
|
|
}
|
|
#endif
|
|
|
|
class MessagePortRunnable final : public WorkerRunnable
|
|
{
|
|
MessagePortIdentifier mPortIdentifier;
|
|
|
|
public:
|
|
MessagePortRunnable(WorkerPrivate* aWorkerPrivate, MessagePort* aPort)
|
|
: WorkerRunnable(aWorkerPrivate)
|
|
{
|
|
MOZ_ASSERT(aPort);
|
|
// In order to move the port from one thread to another one, we have to
|
|
// close and disentangle it. The output will be a MessagePortIdentifier that
|
|
// will be used to recreate a new MessagePort on the other thread.
|
|
aPort->CloneAndDisentangle(mPortIdentifier);
|
|
}
|
|
|
|
private:
|
|
~MessagePortRunnable()
|
|
{ }
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
return aWorkerPrivate->ConnectMessagePort(aCx, mPortIdentifier);
|
|
}
|
|
|
|
nsresult
|
|
Cancel() override
|
|
{
|
|
MessagePort::ForceClose(mPortIdentifier);
|
|
return WorkerRunnable::Cancel();
|
|
}
|
|
};
|
|
|
|
class DummyRunnable final
|
|
: public WorkerRunnable
|
|
{
|
|
public:
|
|
explicit
|
|
DummyRunnable(WorkerPrivate* aWorkerPrivate)
|
|
: WorkerRunnable(aWorkerPrivate, WorkerThreadUnchangedBusyCount)
|
|
{
|
|
aWorkerPrivate->AssertIsOnWorkerThread();
|
|
}
|
|
|
|
private:
|
|
~DummyRunnable()
|
|
{
|
|
mWorkerPrivate->AssertIsOnWorkerThread();
|
|
}
|
|
|
|
virtual bool
|
|
PreDispatch(WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
MOZ_ASSERT_UNREACHABLE("Should never call Dispatch on this!");
|
|
return true;
|
|
}
|
|
|
|
virtual void
|
|
PostDispatch(WorkerPrivate* aWorkerPrivate, bool aDispatchResult) override
|
|
{
|
|
MOZ_ASSERT_UNREACHABLE("Should never call Dispatch on this!");
|
|
}
|
|
|
|
virtual bool
|
|
WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override
|
|
{
|
|
// Do nothing.
|
|
return true;
|
|
}
|
|
};
|
|
|
|
PRThread*
|
|
PRThreadFromThread(nsIThread* aThread)
|
|
{
|
|
MOZ_ASSERT(aThread);
|
|
|
|
PRThread* result;
|
|
MOZ_ALWAYS_SUCCEEDS(aThread->GetPRThread(&result));
|
|
MOZ_ASSERT(result);
|
|
|
|
return result;
|
|
}
|
|
|
|
class SimpleWorkerHolder final : public WorkerHolder
|
|
{
|
|
public:
|
|
virtual bool Notify(Status aStatus) { return true; }
|
|
};
|
|
|
|
} /* anonymous namespace */
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED0(MainThreadReleaseRunnable, Runnable)
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED0(TopLevelWorkerFinishedRunnable, Runnable)
|
|
|
|
TimerThreadEventTarget::TimerThreadEventTarget(WorkerPrivate* aWorkerPrivate,
|
|
WorkerRunnable* aWorkerRunnable)
|
|
: mWorkerPrivate(aWorkerPrivate), mWorkerRunnable(aWorkerRunnable)
|
|
{
|
|
MOZ_ASSERT(aWorkerPrivate);
|
|
MOZ_ASSERT(aWorkerRunnable);
|
|
}
|
|
|
|
TimerThreadEventTarget::~TimerThreadEventTarget()
|
|
{
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TimerThreadEventTarget::DispatchFromScript(nsIRunnable* aRunnable, uint32_t aFlags)
|
|
{
|
|
nsCOMPtr<nsIRunnable> runnable(aRunnable);
|
|
return Dispatch(runnable.forget(), aFlags);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TimerThreadEventTarget::Dispatch(already_AddRefed<nsIRunnable> aRunnable, uint32_t aFlags)
|
|
{
|
|
// This should only happen on the timer thread.
|
|
MOZ_ASSERT(!NS_IsMainThread());
|
|
MOZ_ASSERT(aFlags == nsIEventTarget::DISPATCH_NORMAL);
|
|
|
|
RefPtr<TimerThreadEventTarget> kungFuDeathGrip = this;
|
|
|
|
// Run the runnable we're given now (should just call DummyCallback()),
|
|
// otherwise the timer thread will leak it... If we run this after
|
|
// dispatch running the event can race against resetting the timer.
|
|
nsCOMPtr<nsIRunnable> runnable(aRunnable);
|
|
runnable->Run();
|
|
|
|
// This can fail if we're racing to terminate or cancel, should be handled
|
|
// by the terminate or cancel code.
|
|
mWorkerRunnable->Dispatch();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TimerThreadEventTarget::DelayedDispatch(already_AddRefed<nsIRunnable>, uint32_t)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
TimerThreadEventTarget::IsOnCurrentThread(bool* aIsOnCurrentThread)
|
|
{
|
|
MOZ_ASSERT(aIsOnCurrentThread);
|
|
|
|
nsresult rv = mWorkerPrivate->IsOnCurrentThread(aIsOnCurrentThread);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(TimerThreadEventTarget, nsIEventTarget)
|
|
|
|
WorkerLoadInfo::WorkerLoadInfo()
|
|
: mWindowID(UINT64_MAX)
|
|
, mServiceWorkerID(0)
|
|
, mReferrerPolicy(net::RP_Default)
|
|
, mFromWindow(false)
|
|
, mEvalAllowed(false)
|
|
, mReportCSPViolations(false)
|
|
, mXHRParamsAllowed(false)
|
|
, mPrincipalIsSystem(false)
|
|
, mStorageAllowed(false)
|
|
, mServiceWorkersTestingInWindow(false)
|
|
{
|
|
MOZ_COUNT_CTOR(WorkerLoadInfo);
|
|
}
|
|
|
|
WorkerLoadInfo::~WorkerLoadInfo()
|
|
{
|
|
MOZ_COUNT_DTOR(WorkerLoadInfo);
|
|
}
|
|
|
|
void
|
|
WorkerLoadInfo::StealFrom(WorkerLoadInfo& aOther)
|
|
{
|
|
MOZ_ASSERT(!mBaseURI);
|
|
aOther.mBaseURI.swap(mBaseURI);
|
|
|
|
MOZ_ASSERT(!mResolvedScriptURI);
|
|
aOther.mResolvedScriptURI.swap(mResolvedScriptURI);
|
|
|
|
MOZ_ASSERT(!mPrincipal);
|
|
aOther.mPrincipal.swap(mPrincipal);
|
|
|
|
MOZ_ASSERT(!mScriptContext);
|
|
aOther.mScriptContext.swap(mScriptContext);
|
|
|
|
MOZ_ASSERT(!mWindow);
|
|
aOther.mWindow.swap(mWindow);
|
|
|
|
MOZ_ASSERT(!mCSP);
|
|
aOther.mCSP.swap(mCSP);
|
|
|
|
MOZ_ASSERT(!mChannel);
|
|
aOther.mChannel.swap(mChannel);
|
|
|
|
MOZ_ASSERT(!mLoadGroup);
|
|
aOther.mLoadGroup.swap(mLoadGroup);
|
|
|
|
MOZ_ASSERT(!mLoadFailedAsyncRunnable);
|
|
aOther.mLoadFailedAsyncRunnable.swap(mLoadFailedAsyncRunnable);
|
|
|
|
MOZ_ASSERT(!mInterfaceRequestor);
|
|
aOther.mInterfaceRequestor.swap(mInterfaceRequestor);
|
|
|
|
MOZ_ASSERT(!mPrincipalInfo);
|
|
mPrincipalInfo = aOther.mPrincipalInfo.forget();
|
|
|
|
mDomain = aOther.mDomain;
|
|
mServiceWorkerCacheName = aOther.mServiceWorkerCacheName;
|
|
mWindowID = aOther.mWindowID;
|
|
mServiceWorkerID = aOther.mServiceWorkerID;
|
|
mReferrerPolicy = aOther.mReferrerPolicy;
|
|
mFromWindow = aOther.mFromWindow;
|
|
mEvalAllowed = aOther.mEvalAllowed;
|
|
mReportCSPViolations = aOther.mReportCSPViolations;
|
|
mXHRParamsAllowed = aOther.mXHRParamsAllowed;
|
|
mPrincipalIsSystem = aOther.mPrincipalIsSystem;
|
|
mStorageAllowed = aOther.mStorageAllowed;
|
|
mServiceWorkersTestingInWindow = aOther.mServiceWorkersTestingInWindow;
|
|
mOriginAttributes = aOther.mOriginAttributes;
|
|
}
|
|
|
|
template <class Derived>
|
|
class WorkerPrivateParent<Derived>::EventTarget final
|
|
: public nsIEventTarget
|
|
{
|
|
// This mutex protects mWorkerPrivate and must be acquired *before* the
|
|
// WorkerPrivate's mutex whenever they must both be held.
|
|
mozilla::Mutex mMutex;
|
|
WorkerPrivate* mWorkerPrivate;
|
|
nsIEventTarget* mWeakNestedEventTarget;
|
|
nsCOMPtr<nsIEventTarget> mNestedEventTarget;
|
|
|
|
public:
|
|
explicit EventTarget(WorkerPrivate* aWorkerPrivate)
|
|
: mMutex("WorkerPrivateParent::EventTarget::mMutex"),
|
|
mWorkerPrivate(aWorkerPrivate), mWeakNestedEventTarget(nullptr)
|
|
{
|
|
MOZ_ASSERT(aWorkerPrivate);
|
|
}
|
|
|
|
EventTarget(WorkerPrivate* aWorkerPrivate, nsIEventTarget* aNestedEventTarget)
|
|
: mMutex("WorkerPrivateParent::EventTarget::mMutex"),
|
|
mWorkerPrivate(aWorkerPrivate), mWeakNestedEventTarget(aNestedEventTarget),
|
|
mNestedEventTarget(aNestedEventTarget)
|
|
{
|
|
MOZ_ASSERT(aWorkerPrivate);
|
|
MOZ_ASSERT(aNestedEventTarget);
|
|
}
|
|
|
|
void
|
|
Disable()
|
|
{
|
|
nsCOMPtr<nsIEventTarget> nestedEventTarget;
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
MOZ_ASSERT(mWorkerPrivate);
|
|
mWorkerPrivate = nullptr;
|
|
mNestedEventTarget.swap(nestedEventTarget);
|
|
}
|
|
}
|
|
|
|
nsIEventTarget*
|
|
GetWeakNestedEventTarget() const
|
|
{
|
|
MOZ_ASSERT(mWeakNestedEventTarget);
|
|
return mWeakNestedEventTarget;
|
|
}
|
|
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSIEVENTTARGET
|
|
|
|
private:
|
|
~EventTarget()
|
|
{ }
|
|
};
|
|
|
|
WorkerLoadInfo::
|
|
InterfaceRequestor::InterfaceRequestor(nsIPrincipal* aPrincipal,
|
|
nsILoadGroup* aLoadGroup)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aPrincipal);
|
|
|
|
// Look for an existing LoadContext. This is optional and it's ok if
|
|
// we don't find one.
|
|
nsCOMPtr<nsILoadContext> baseContext;
|
|
if (aLoadGroup) {
|
|
nsCOMPtr<nsIInterfaceRequestor> callbacks;
|
|
aLoadGroup->GetNotificationCallbacks(getter_AddRefs(callbacks));
|
|
if (callbacks) {
|
|
callbacks->GetInterface(NS_GET_IID(nsILoadContext),
|
|
getter_AddRefs(baseContext));
|
|
}
|
|
mOuterRequestor = callbacks;
|
|
}
|
|
|
|
mLoadContext = new LoadContext(aPrincipal, baseContext);
|
|
}
|
|
|
|
void
|
|
WorkerLoadInfo::
|
|
InterfaceRequestor::MaybeAddTabChild(nsILoadGroup* aLoadGroup)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
if (!aLoadGroup) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIInterfaceRequestor> callbacks;
|
|
aLoadGroup->GetNotificationCallbacks(getter_AddRefs(callbacks));
|
|
if (!callbacks) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsITabChild> tabChild;
|
|
callbacks->GetInterface(NS_GET_IID(nsITabChild), getter_AddRefs(tabChild));
|
|
if (!tabChild) {
|
|
return;
|
|
}
|
|
|
|
// Use weak references to the tab child. Holding a strong reference will
|
|
// not prevent an ActorDestroy() from being called on the TabChild.
|
|
// Therefore, we should let the TabChild destroy itself as soon as possible.
|
|
mTabChildList.AppendElement(do_GetWeakReference(tabChild));
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerLoadInfo::
|
|
InterfaceRequestor::GetInterface(const nsIID& aIID, void** aSink)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(mLoadContext);
|
|
|
|
if (aIID.Equals(NS_GET_IID(nsILoadContext))) {
|
|
nsCOMPtr<nsILoadContext> ref = mLoadContext;
|
|
ref.forget(aSink);
|
|
return NS_OK;
|
|
}
|
|
|
|
// If we still have an active nsITabChild, then return it. Its possible,
|
|
// though, that all of the TabChild objects have been destroyed. In that
|
|
// case we return NS_NOINTERFACE.
|
|
if (aIID.Equals(NS_GET_IID(nsITabChild))) {
|
|
nsCOMPtr<nsITabChild> tabChild = GetAnyLiveTabChild();
|
|
if (!tabChild) {
|
|
return NS_NOINTERFACE;
|
|
}
|
|
tabChild.forget(aSink);
|
|
return NS_OK;
|
|
}
|
|
|
|
if (aIID.Equals(NS_GET_IID(nsINetworkInterceptController)) &&
|
|
mOuterRequestor) {
|
|
// If asked for the network intercept controller, ask the outer requestor,
|
|
// which could be the docshell.
|
|
return mOuterRequestor->GetInterface(aIID, aSink);
|
|
}
|
|
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
already_AddRefed<nsITabChild>
|
|
WorkerLoadInfo::
|
|
InterfaceRequestor::GetAnyLiveTabChild()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
// Search our list of known TabChild objects for one that still exists.
|
|
while (!mTabChildList.IsEmpty()) {
|
|
nsCOMPtr<nsITabChild> tabChild =
|
|
do_QueryReferent(mTabChildList.LastElement());
|
|
|
|
// Does this tab child still exist? If so, return it. We are done. If the
|
|
// PBrowser actor is no longer useful, don't bother returning this tab.
|
|
if (tabChild && !static_cast<TabChild*>(tabChild.get())->IsDestroyed()) {
|
|
return tabChild.forget();
|
|
}
|
|
|
|
// Otherwise remove the stale weak reference and check the next one
|
|
mTabChildList.RemoveElementAt(mTabChildList.Length() - 1);
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
NS_IMPL_ADDREF(WorkerLoadInfo::InterfaceRequestor)
|
|
NS_IMPL_RELEASE(WorkerLoadInfo::InterfaceRequestor)
|
|
NS_IMPL_QUERY_INTERFACE(WorkerLoadInfo::InterfaceRequestor, nsIInterfaceRequestor)
|
|
|
|
struct WorkerPrivate::TimeoutInfo
|
|
{
|
|
TimeoutInfo()
|
|
: mId(0), mIsInterval(false), mCanceled(false)
|
|
{
|
|
MOZ_COUNT_CTOR(mozilla::dom::workers::WorkerPrivate::TimeoutInfo);
|
|
}
|
|
|
|
~TimeoutInfo()
|
|
{
|
|
MOZ_COUNT_DTOR(mozilla::dom::workers::WorkerPrivate::TimeoutInfo);
|
|
}
|
|
|
|
bool operator==(const TimeoutInfo& aOther)
|
|
{
|
|
return mTargetTime == aOther.mTargetTime;
|
|
}
|
|
|
|
bool operator<(const TimeoutInfo& aOther)
|
|
{
|
|
return mTargetTime < aOther.mTargetTime;
|
|
}
|
|
|
|
nsCOMPtr<nsIScriptTimeoutHandler> mHandler;
|
|
mozilla::TimeStamp mTargetTime;
|
|
mozilla::TimeDuration mInterval;
|
|
int32_t mId;
|
|
bool mIsInterval;
|
|
bool mCanceled;
|
|
};
|
|
|
|
class WorkerJSContextStats final : public JS::RuntimeStats
|
|
{
|
|
const nsCString mRtPath;
|
|
|
|
public:
|
|
explicit WorkerJSContextStats(const nsACString& aRtPath)
|
|
: JS::RuntimeStats(JsWorkerMallocSizeOf), mRtPath(aRtPath)
|
|
{ }
|
|
|
|
~WorkerJSContextStats()
|
|
{
|
|
for (size_t i = 0; i != zoneStatsVector.length(); i++) {
|
|
delete static_cast<xpc::ZoneStatsExtras*>(zoneStatsVector[i].extra);
|
|
}
|
|
|
|
for (size_t i = 0; i != compartmentStatsVector.length(); i++) {
|
|
delete static_cast<xpc::CompartmentStatsExtras*>(compartmentStatsVector[i].extra);
|
|
}
|
|
}
|
|
|
|
const nsCString& Path() const
|
|
{
|
|
return mRtPath;
|
|
}
|
|
|
|
virtual void
|
|
initExtraZoneStats(JS::Zone* aZone,
|
|
JS::ZoneStats* aZoneStats)
|
|
override
|
|
{
|
|
MOZ_ASSERT(!aZoneStats->extra);
|
|
|
|
// ReportJSRuntimeExplicitTreeStats expects that
|
|
// aZoneStats->extra is a xpc::ZoneStatsExtras pointer.
|
|
xpc::ZoneStatsExtras* extras = new xpc::ZoneStatsExtras;
|
|
extras->pathPrefix = mRtPath;
|
|
extras->pathPrefix += nsPrintfCString("zone(0x%p)/", (void *)aZone);
|
|
|
|
MOZ_ASSERT(StartsWithExplicit(extras->pathPrefix));
|
|
|
|
aZoneStats->extra = extras;
|
|
}
|
|
|
|
virtual void
|
|
initExtraCompartmentStats(JSCompartment* aCompartment,
|
|
JS::CompartmentStats* aCompartmentStats)
|
|
override
|
|
{
|
|
MOZ_ASSERT(!aCompartmentStats->extra);
|
|
|
|
// ReportJSRuntimeExplicitTreeStats expects that
|
|
// aCompartmentStats->extra is a xpc::CompartmentStatsExtras pointer.
|
|
xpc::CompartmentStatsExtras* extras = new xpc::CompartmentStatsExtras;
|
|
|
|
// This is the |jsPathPrefix|. Each worker has exactly two compartments:
|
|
// one for atoms, and one for everything else.
|
|
extras->jsPathPrefix.Assign(mRtPath);
|
|
extras->jsPathPrefix += nsPrintfCString("zone(0x%p)/",
|
|
(void *)js::GetCompartmentZone(aCompartment));
|
|
extras->jsPathPrefix += js::IsAtomsCompartment(aCompartment)
|
|
? NS_LITERAL_CSTRING("compartment(web-worker-atoms)/")
|
|
: NS_LITERAL_CSTRING("compartment(web-worker)/");
|
|
|
|
// This should never be used when reporting with workers (hence the "?!").
|
|
extras->domPathPrefix.AssignLiteral("explicit/workers/?!/");
|
|
|
|
MOZ_ASSERT(StartsWithExplicit(extras->jsPathPrefix));
|
|
MOZ_ASSERT(StartsWithExplicit(extras->domPathPrefix));
|
|
|
|
extras->location = nullptr;
|
|
|
|
aCompartmentStats->extra = extras;
|
|
}
|
|
};
|
|
|
|
class WorkerPrivate::MemoryReporter final : public nsIMemoryReporter
|
|
{
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
|
|
friend class WorkerPrivate;
|
|
|
|
SharedMutex mMutex;
|
|
WorkerPrivate* mWorkerPrivate;
|
|
bool mAlreadyMappedToAddon;
|
|
|
|
public:
|
|
explicit MemoryReporter(WorkerPrivate* aWorkerPrivate)
|
|
: mMutex(aWorkerPrivate->mMutex), mWorkerPrivate(aWorkerPrivate),
|
|
mAlreadyMappedToAddon(false)
|
|
{
|
|
aWorkerPrivate->AssertIsOnWorkerThread();
|
|
}
|
|
|
|
NS_IMETHOD
|
|
CollectReports(nsIHandleReportCallback* aHandleReport,
|
|
nsISupports* aData, bool aAnonymize) override;
|
|
|
|
private:
|
|
class FinishCollectRunnable;
|
|
|
|
class CollectReportsRunnable final : public MainThreadWorkerControlRunnable
|
|
{
|
|
RefPtr<FinishCollectRunnable> mFinishCollectRunnable;
|
|
const bool mAnonymize;
|
|
|
|
public:
|
|
CollectReportsRunnable(
|
|
WorkerPrivate* aWorkerPrivate,
|
|
nsIHandleReportCallback* aHandleReport,
|
|
nsISupports* aHandlerData,
|
|
bool aAnonymize,
|
|
const nsACString& aPath);
|
|
|
|
private:
|
|
bool WorkerRun(JSContext* aCx, WorkerPrivate* aWorkerPrivate) override;
|
|
|
|
~CollectReportsRunnable()
|
|
{
|
|
if (NS_IsMainThread()) {
|
|
mFinishCollectRunnable->Run();
|
|
return;
|
|
}
|
|
|
|
WorkerPrivate* workerPrivate = GetCurrentThreadWorkerPrivate();
|
|
MOZ_ASSERT(workerPrivate);
|
|
MOZ_ALWAYS_SUCCEEDS(
|
|
workerPrivate->DispatchToMainThread(mFinishCollectRunnable.forget()));
|
|
}
|
|
};
|
|
|
|
class FinishCollectRunnable final : public Runnable
|
|
{
|
|
nsCOMPtr<nsIHandleReportCallback> mHandleReport;
|
|
nsCOMPtr<nsISupports> mHandlerData;
|
|
const bool mAnonymize;
|
|
bool mSuccess;
|
|
|
|
public:
|
|
WorkerJSContextStats mCxStats;
|
|
|
|
explicit FinishCollectRunnable(
|
|
nsIHandleReportCallback* aHandleReport,
|
|
nsISupports* aHandlerData,
|
|
bool aAnonymize,
|
|
const nsACString& aPath);
|
|
|
|
NS_IMETHOD Run() override;
|
|
|
|
void SetSuccess(bool success)
|
|
{
|
|
mSuccess = success;
|
|
}
|
|
|
|
private:
|
|
~FinishCollectRunnable()
|
|
{
|
|
// mHandleReport and mHandlerData are released on the main thread.
|
|
AssertIsOnMainThread();
|
|
}
|
|
|
|
FinishCollectRunnable(const FinishCollectRunnable&) = delete;
|
|
FinishCollectRunnable& operator=(const FinishCollectRunnable&) = delete;
|
|
FinishCollectRunnable& operator=(const FinishCollectRunnable&&) = delete;
|
|
};
|
|
|
|
~MemoryReporter()
|
|
{
|
|
}
|
|
|
|
void
|
|
Disable()
|
|
{
|
|
// Called from WorkerPrivate::DisableMemoryReporter.
|
|
mMutex.AssertCurrentThreadOwns();
|
|
|
|
NS_ASSERTION(mWorkerPrivate, "Disabled more than once!");
|
|
mWorkerPrivate = nullptr;
|
|
}
|
|
|
|
// Only call this from the main thread and under mMutex lock.
|
|
void
|
|
TryToMapAddon(nsACString &path);
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS(WorkerPrivate::MemoryReporter, nsIMemoryReporter)
|
|
|
|
NS_IMETHODIMP
|
|
WorkerPrivate::MemoryReporter::CollectReports(nsIHandleReportCallback* aHandleReport,
|
|
nsISupports* aData,
|
|
bool aAnonymize)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
RefPtr<CollectReportsRunnable> runnable;
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (!mWorkerPrivate) {
|
|
// This will effectively report 0 memory.
|
|
nsCOMPtr<nsIMemoryReporterManager> manager =
|
|
do_GetService("@mozilla.org/memory-reporter-manager;1");
|
|
if (manager) {
|
|
manager->EndReport();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsAutoCString path;
|
|
path.AppendLiteral("explicit/workers/workers(");
|
|
if (aAnonymize && !mWorkerPrivate->Domain().IsEmpty()) {
|
|
path.AppendLiteral("<anonymized-domain>)/worker(<anonymized-url>");
|
|
} else {
|
|
nsAutoCString escapedDomain(mWorkerPrivate->Domain());
|
|
if (escapedDomain.IsEmpty()) {
|
|
escapedDomain += "chrome";
|
|
} else {
|
|
escapedDomain.ReplaceChar('/', '\\');
|
|
}
|
|
path.Append(escapedDomain);
|
|
path.AppendLiteral(")/worker(");
|
|
NS_ConvertUTF16toUTF8 escapedURL(mWorkerPrivate->ScriptURL());
|
|
escapedURL.ReplaceChar('/', '\\');
|
|
path.Append(escapedURL);
|
|
}
|
|
path.AppendPrintf(", 0x%p)/", static_cast<void*>(mWorkerPrivate));
|
|
|
|
TryToMapAddon(path);
|
|
|
|
runnable =
|
|
new CollectReportsRunnable(mWorkerPrivate, aHandleReport, aData, aAnonymize, path);
|
|
}
|
|
|
|
if (!runnable->Dispatch()) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::MemoryReporter::TryToMapAddon(nsACString &path)
|
|
{
|
|
AssertIsOnMainThread();
|
|
mMutex.AssertCurrentThreadOwns();
|
|
|
|
if (mAlreadyMappedToAddon || !mWorkerPrivate) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIURI> scriptURI;
|
|
if (NS_FAILED(NS_NewURI(getter_AddRefs(scriptURI),
|
|
mWorkerPrivate->ScriptURL()))) {
|
|
return;
|
|
}
|
|
|
|
mAlreadyMappedToAddon = true;
|
|
|
|
if (!XRE_IsParentProcess()) {
|
|
// Only try to access the service from the main process.
|
|
return;
|
|
}
|
|
|
|
nsAutoCString addonId;
|
|
bool ok;
|
|
nsCOMPtr<amIAddonManager> addonManager =
|
|
do_GetService("@mozilla.org/addons/integration;1");
|
|
|
|
if (!addonManager ||
|
|
NS_FAILED(addonManager->MapURIToAddonID(scriptURI, addonId, &ok)) ||
|
|
!ok) {
|
|
return;
|
|
}
|
|
|
|
static const size_t explicitLength = strlen("explicit/");
|
|
addonId.Insert(NS_LITERAL_CSTRING("add-ons/"), 0);
|
|
addonId += "/";
|
|
path.Insert(addonId, explicitLength);
|
|
}
|
|
|
|
WorkerPrivate::MemoryReporter::CollectReportsRunnable::CollectReportsRunnable(
|
|
WorkerPrivate* aWorkerPrivate,
|
|
nsIHandleReportCallback* aHandleReport,
|
|
nsISupports* aHandlerData,
|
|
bool aAnonymize,
|
|
const nsACString& aPath)
|
|
: MainThreadWorkerControlRunnable(aWorkerPrivate),
|
|
mFinishCollectRunnable(
|
|
new FinishCollectRunnable(aHandleReport, aHandlerData, aAnonymize, aPath)),
|
|
mAnonymize(aAnonymize)
|
|
{ }
|
|
|
|
bool
|
|
WorkerPrivate::MemoryReporter::CollectReportsRunnable::WorkerRun(JSContext* aCx,
|
|
WorkerPrivate* aWorkerPrivate)
|
|
{
|
|
aWorkerPrivate->AssertIsOnWorkerThread();
|
|
|
|
mFinishCollectRunnable->SetSuccess(
|
|
aWorkerPrivate->CollectRuntimeStats(&mFinishCollectRunnable->mCxStats, mAnonymize));
|
|
|
|
return true;
|
|
}
|
|
|
|
WorkerPrivate::MemoryReporter::FinishCollectRunnable::FinishCollectRunnable(
|
|
nsIHandleReportCallback* aHandleReport,
|
|
nsISupports* aHandlerData,
|
|
bool aAnonymize,
|
|
const nsACString& aPath)
|
|
: mHandleReport(aHandleReport),
|
|
mHandlerData(aHandlerData),
|
|
mAnonymize(aAnonymize),
|
|
mSuccess(false),
|
|
mCxStats(aPath)
|
|
{ }
|
|
|
|
NS_IMETHODIMP
|
|
WorkerPrivate::MemoryReporter::FinishCollectRunnable::Run()
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
nsCOMPtr<nsIMemoryReporterManager> manager =
|
|
do_GetService("@mozilla.org/memory-reporter-manager;1");
|
|
|
|
if (!manager)
|
|
return NS_OK;
|
|
|
|
if (mSuccess) {
|
|
xpc::ReportJSRuntimeExplicitTreeStats(mCxStats, mCxStats.Path(),
|
|
mHandleReport, mHandlerData,
|
|
mAnonymize);
|
|
}
|
|
|
|
manager->EndReport();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
WorkerPrivate::SyncLoopInfo::SyncLoopInfo(EventTarget* aEventTarget)
|
|
: mEventTarget(aEventTarget), mCompleted(false), mResult(false)
|
|
#ifdef DEBUG
|
|
, mHasRun(false)
|
|
#endif
|
|
{
|
|
}
|
|
|
|
template <class Derived>
|
|
nsIDocument*
|
|
WorkerPrivateParent<Derived>::GetDocument() const
|
|
{
|
|
AssertIsOnMainThread();
|
|
if (mLoadInfo.mWindow) {
|
|
return mLoadInfo.mWindow->GetExtantDoc();
|
|
}
|
|
// if we don't have a document, we should query the document
|
|
// from the parent in case of a nested worker
|
|
WorkerPrivate* parent = mParent;
|
|
while (parent) {
|
|
if (parent->mLoadInfo.mWindow) {
|
|
return parent->mLoadInfo.mWindow->GetExtantDoc();
|
|
}
|
|
parent = parent->GetParent();
|
|
}
|
|
// couldn't query a document, give up and return nullptr
|
|
return nullptr;
|
|
}
|
|
|
|
|
|
// Can't use NS_IMPL_CYCLE_COLLECTION_CLASS(WorkerPrivateParent) because of the
|
|
// templates.
|
|
template <class Derived>
|
|
typename WorkerPrivateParent<Derived>::cycleCollection
|
|
WorkerPrivateParent<Derived>::_cycleCollectorGlobal =
|
|
WorkerPrivateParent<Derived>::cycleCollection();
|
|
|
|
template <class Derived>
|
|
WorkerPrivateParent<Derived>::WorkerPrivateParent(
|
|
WorkerPrivate* aParent,
|
|
const nsAString& aScriptURL,
|
|
bool aIsChromeWorker,
|
|
WorkerType aWorkerType,
|
|
const nsACString& aWorkerName,
|
|
WorkerLoadInfo& aLoadInfo)
|
|
: mMutex("WorkerPrivateParent Mutex"),
|
|
mCondVar(mMutex, "WorkerPrivateParent CondVar"),
|
|
mParent(aParent), mScriptURL(aScriptURL),
|
|
mWorkerName(aWorkerName), mLoadingWorkerScript(false),
|
|
mBusyCount(0), mParentWindowPausedDepth(0), mParentStatus(Pending),
|
|
mParentFrozen(false), mIsChromeWorker(aIsChromeWorker),
|
|
mMainThreadObjectsForgotten(false), mIsSecureContext(false),
|
|
mWorkerType(aWorkerType),
|
|
mCreationTimeStamp(TimeStamp::Now()),
|
|
mCreationTimeHighRes((double)PR_Now() / PR_USEC_PER_MSEC)
|
|
{
|
|
MOZ_ASSERT_IF(!IsDedicatedWorker(),
|
|
!aWorkerName.IsVoid() && NS_IsMainThread());
|
|
MOZ_ASSERT_IF(IsDedicatedWorker(), aWorkerName.IsEmpty());
|
|
|
|
if (aLoadInfo.mWindow) {
|
|
AssertIsOnMainThread();
|
|
MOZ_ASSERT(aLoadInfo.mWindow->IsInnerWindow(),
|
|
"Should have inner window here!");
|
|
BindToOwner(aLoadInfo.mWindow);
|
|
}
|
|
|
|
mLoadInfo.StealFrom(aLoadInfo);
|
|
|
|
if (aParent) {
|
|
aParent->AssertIsOnWorkerThread();
|
|
|
|
// Note that this copies our parent's secure context state into mJSSettings.
|
|
aParent->CopyJSSettings(mJSSettings);
|
|
|
|
// And manually set our mIsSecureContext, though it's not really relevant to
|
|
// dedicated workers...
|
|
mIsSecureContext = aParent->IsSecureContext();
|
|
MOZ_ASSERT_IF(mIsChromeWorker, mIsSecureContext);
|
|
|
|
MOZ_ASSERT(IsDedicatedWorker());
|
|
|
|
if (aParent->mParentFrozen) {
|
|
Freeze(nullptr);
|
|
}
|
|
}
|
|
else {
|
|
AssertIsOnMainThread();
|
|
|
|
RuntimeService::GetDefaultJSSettings(mJSSettings);
|
|
|
|
// Our secure context state depends on the kind of worker we have.
|
|
if (UsesSystemPrincipal() || IsServiceWorker()) {
|
|
mIsSecureContext = true;
|
|
} else if (mLoadInfo.mWindow) {
|
|
// Shared and dedicated workers both inherit the loading window's secure
|
|
// context state. Shared workers then prevent windows with a different
|
|
// secure context state from attaching to them.
|
|
mIsSecureContext = mLoadInfo.mWindow->IsSecureContext();
|
|
} else {
|
|
MOZ_ASSERT_UNREACHABLE("non-chrome worker that is not a service worker "
|
|
"that has no parent and no associated window");
|
|
}
|
|
|
|
if (mIsSecureContext) {
|
|
mJSSettings.chrome.compartmentOptions
|
|
.creationOptions().setSecureContext(true);
|
|
mJSSettings.content.compartmentOptions
|
|
.creationOptions().setSecureContext(true);
|
|
}
|
|
|
|
// Our parent can get suspended after it initiates the async creation
|
|
// of a new worker thread. In this case suspend the new worker as well.
|
|
if (mLoadInfo.mWindow && mLoadInfo.mWindow->IsSuspended()) {
|
|
ParentWindowPaused();
|
|
}
|
|
|
|
if (mLoadInfo.mWindow && mLoadInfo.mWindow->IsFrozen()) {
|
|
Freeze(mLoadInfo.mWindow);
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
WorkerPrivateParent<Derived>::~WorkerPrivateParent()
|
|
{
|
|
DropJSObjects(this);
|
|
}
|
|
|
|
template <class Derived>
|
|
JSObject*
|
|
WorkerPrivateParent<Derived>::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
|
|
{
|
|
MOZ_ASSERT(!IsSharedWorker(),
|
|
"We should never wrap a WorkerPrivate for a SharedWorker");
|
|
|
|
AssertIsOnParentThread();
|
|
|
|
// XXXkhuey this should not need to be rooted, the analysis is dumb.
|
|
// See bug 980181.
|
|
JS::Rooted<JSObject*> wrapper(aCx,
|
|
WorkerBinding::Wrap(aCx, ParentAsWorkerPrivate(), aGivenProto));
|
|
if (wrapper) {
|
|
MOZ_ALWAYS_TRUE(TryPreserveWrapper(wrapper));
|
|
}
|
|
|
|
return wrapper;
|
|
}
|
|
|
|
template <class Derived>
|
|
nsresult
|
|
WorkerPrivateParent<Derived>::DispatchPrivate(already_AddRefed<WorkerRunnable> aRunnable,
|
|
nsIEventTarget* aSyncLoopTarget)
|
|
{
|
|
// May be called on any thread!
|
|
RefPtr<WorkerRunnable> runnable(aRunnable);
|
|
|
|
WorkerPrivate* self = ParentAsWorkerPrivate();
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
MOZ_ASSERT_IF(aSyncLoopTarget, self->mThread);
|
|
|
|
if (!self->mThread) {
|
|
if (ParentStatus() == Pending || self->mStatus == Pending) {
|
|
mPreStartRunnables.AppendElement(runnable);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_WARNING("Using a worker event target after the thread has already"
|
|
"been released!");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
if (self->mStatus == Dead ||
|
|
(!aSyncLoopTarget && ParentStatus() > Running)) {
|
|
NS_WARNING("A runnable was posted to a worker that is already shutting "
|
|
"down!");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
nsresult rv;
|
|
if (aSyncLoopTarget) {
|
|
rv = aSyncLoopTarget->Dispatch(runnable.forget(), NS_DISPATCH_NORMAL);
|
|
} else {
|
|
rv = self->mThread->DispatchAnyThread(WorkerThreadFriendKey(), runnable.forget());
|
|
}
|
|
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
mCondVar.Notify();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::EnableDebugger()
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
WorkerPrivate* self = ParentAsWorkerPrivate();
|
|
|
|
if (NS_FAILED(RegisterWorkerDebugger(self))) {
|
|
NS_WARNING("Failed to register worker debugger!");
|
|
return;
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::DisableDebugger()
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
WorkerPrivate* self = ParentAsWorkerPrivate();
|
|
|
|
// RegisterDebugger might have been dispatched but not completed.
|
|
// Wait for its execution to complete before unregistering.
|
|
if (!NS_IsMainThread()) {
|
|
self->WaitForIsDebuggerRegistered(true);
|
|
}
|
|
|
|
if (NS_FAILED(UnregisterWorkerDebugger(self))) {
|
|
NS_WARNING("Failed to unregister worker debugger!");
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
nsresult
|
|
WorkerPrivateParent<Derived>::DispatchControlRunnable(
|
|
already_AddRefed<WorkerControlRunnable> aWorkerControlRunnable)
|
|
{
|
|
// May be called on any thread!
|
|
RefPtr<WorkerControlRunnable> runnable(aWorkerControlRunnable);
|
|
MOZ_ASSERT(runnable);
|
|
|
|
WorkerPrivate* self = ParentAsWorkerPrivate();
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (self->mStatus == Dead) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
// Transfer ownership to the control queue.
|
|
self->mControlQueue.Push(runnable.forget().take());
|
|
|
|
if (JSContext* cx = self->mJSContext) {
|
|
MOZ_ASSERT(self->mThread);
|
|
JS_RequestInterruptCallback(cx);
|
|
}
|
|
|
|
mCondVar.Notify();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
template <class Derived>
|
|
nsresult
|
|
WorkerPrivateParent<Derived>::DispatchDebuggerRunnable(
|
|
already_AddRefed<WorkerRunnable> aDebuggerRunnable)
|
|
{
|
|
// May be called on any thread!
|
|
|
|
RefPtr<WorkerRunnable> runnable(aDebuggerRunnable);
|
|
|
|
MOZ_ASSERT(runnable);
|
|
|
|
WorkerPrivate* self = ParentAsWorkerPrivate();
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (self->mStatus == Dead) {
|
|
NS_WARNING("A debugger runnable was posted to a worker that is already "
|
|
"shutting down!");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
// Transfer ownership to the debugger queue.
|
|
self->mDebuggerQueue.Push(runnable.forget().take());
|
|
|
|
mCondVar.Notify();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
template <class Derived>
|
|
already_AddRefed<WorkerRunnable>
|
|
WorkerPrivateParent<Derived>::MaybeWrapAsWorkerRunnable(already_AddRefed<nsIRunnable> aRunnable)
|
|
{
|
|
// May be called on any thread!
|
|
|
|
nsCOMPtr<nsIRunnable> runnable(aRunnable);
|
|
MOZ_ASSERT(runnable);
|
|
|
|
RefPtr<WorkerRunnable> workerRunnable =
|
|
WorkerRunnable::FromRunnable(runnable);
|
|
if (workerRunnable) {
|
|
return workerRunnable.forget();
|
|
}
|
|
|
|
nsCOMPtr<nsICancelableRunnable> cancelable = do_QueryInterface(runnable);
|
|
if (!cancelable) {
|
|
MOZ_CRASH("All runnables destined for a worker thread must be cancelable!");
|
|
}
|
|
|
|
workerRunnable =
|
|
new ExternalRunnableWrapper(ParentAsWorkerPrivate(), runnable);
|
|
return workerRunnable.forget();
|
|
}
|
|
|
|
template <class Derived>
|
|
already_AddRefed<nsIEventTarget>
|
|
WorkerPrivateParent<Derived>::GetEventTarget()
|
|
{
|
|
WorkerPrivate* self = ParentAsWorkerPrivate();
|
|
|
|
nsCOMPtr<nsIEventTarget> target;
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (!mEventTarget &&
|
|
ParentStatus() <= Running &&
|
|
self->mStatus <= Running) {
|
|
mEventTarget = new EventTarget(self);
|
|
}
|
|
|
|
target = mEventTarget;
|
|
}
|
|
|
|
NS_WARNING_ASSERTION(
|
|
target,
|
|
"Requested event target for a worker that is already shutting down!");
|
|
|
|
return target.forget();
|
|
}
|
|
|
|
template <class Derived>
|
|
bool
|
|
WorkerPrivateParent<Derived>::Start()
|
|
{
|
|
// May be called on any thread!
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
NS_ASSERTION(mParentStatus != Running, "How can this be?!");
|
|
|
|
if (mParentStatus == Pending) {
|
|
mParentStatus = Running;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// aCx is null when called from the finalizer
|
|
template <class Derived>
|
|
bool
|
|
WorkerPrivateParent<Derived>::NotifyPrivate(Status aStatus)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
bool pending;
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (mParentStatus >= aStatus) {
|
|
return true;
|
|
}
|
|
|
|
pending = mParentStatus == Pending;
|
|
mParentStatus = aStatus;
|
|
}
|
|
|
|
if (IsSharedWorker()) {
|
|
RuntimeService* runtime = RuntimeService::GetService();
|
|
MOZ_ASSERT(runtime);
|
|
|
|
runtime->ForgetSharedWorker(ParentAsWorkerPrivate());
|
|
}
|
|
|
|
if (pending) {
|
|
WorkerPrivate* self = ParentAsWorkerPrivate();
|
|
|
|
#ifdef DEBUG
|
|
{
|
|
// Fake a thread here just so that our assertions don't go off for no
|
|
// reason.
|
|
nsIThread* currentThread = NS_GetCurrentThread();
|
|
MOZ_ASSERT(currentThread);
|
|
|
|
MOZ_ASSERT(!self->mPRThread);
|
|
self->mPRThread = PRThreadFromThread(currentThread);
|
|
MOZ_ASSERT(self->mPRThread);
|
|
}
|
|
#endif
|
|
|
|
// Worker never got a chance to run, go ahead and delete it.
|
|
self->ScheduleDeletion(WorkerPrivate::WorkerNeverRan);
|
|
return true;
|
|
}
|
|
|
|
NS_ASSERTION(aStatus != Terminating || mQueuedRunnables.IsEmpty(),
|
|
"Shouldn't have anything queued!");
|
|
|
|
// Anything queued will be discarded.
|
|
mQueuedRunnables.Clear();
|
|
|
|
RefPtr<NotifyRunnable> runnable =
|
|
new NotifyRunnable(ParentAsWorkerPrivate(), aStatus);
|
|
return runnable->Dispatch();
|
|
}
|
|
|
|
template <class Derived>
|
|
bool
|
|
WorkerPrivateParent<Derived>::Freeze(nsPIDOMWindowInner* aWindow)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
// Shared workers are only frozen if all of their owning documents are
|
|
// frozen. It can happen that mSharedWorkers is empty but this thread has
|
|
// not been unregistered yet.
|
|
if ((IsSharedWorker() || IsServiceWorker()) && !mSharedWorkers.IsEmpty()) {
|
|
AssertIsOnMainThread();
|
|
|
|
bool allFrozen = true;
|
|
|
|
for (uint32_t i = 0; i < mSharedWorkers.Length(); ++i) {
|
|
if (aWindow && mSharedWorkers[i]->GetOwner() == aWindow) {
|
|
// Calling Freeze() may change the refcount, ensure that the worker
|
|
// outlives this call.
|
|
RefPtr<SharedWorker> kungFuDeathGrip = mSharedWorkers[i];
|
|
|
|
kungFuDeathGrip->Freeze();
|
|
} else {
|
|
MOZ_ASSERT_IF(mSharedWorkers[i]->GetOwner() && aWindow,
|
|
!SameCOMIdentity(mSharedWorkers[i]->GetOwner(),
|
|
aWindow));
|
|
if (!mSharedWorkers[i]->IsFrozen()) {
|
|
allFrozen = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!allFrozen || mParentFrozen) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
mParentFrozen = true;
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (mParentStatus >= Terminating) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
DisableDebugger();
|
|
|
|
RefPtr<FreezeRunnable> runnable =
|
|
new FreezeRunnable(ParentAsWorkerPrivate());
|
|
if (!runnable->Dispatch()) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <class Derived>
|
|
bool
|
|
WorkerPrivateParent<Derived>::Thaw(nsPIDOMWindowInner* aWindow)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
MOZ_ASSERT(mParentFrozen);
|
|
|
|
// Shared workers are resumed if any of their owning documents are thawed.
|
|
// It can happen that mSharedWorkers is empty but this thread has not been
|
|
// unregistered yet.
|
|
if ((IsSharedWorker() || IsServiceWorker()) && !mSharedWorkers.IsEmpty()) {
|
|
AssertIsOnMainThread();
|
|
|
|
bool anyRunning = false;
|
|
|
|
for (uint32_t i = 0; i < mSharedWorkers.Length(); ++i) {
|
|
if (aWindow && mSharedWorkers[i]->GetOwner() == aWindow) {
|
|
// Calling Thaw() may change the refcount, ensure that the worker
|
|
// outlives this call.
|
|
RefPtr<SharedWorker> kungFuDeathGrip = mSharedWorkers[i];
|
|
|
|
kungFuDeathGrip->Thaw();
|
|
anyRunning = true;
|
|
} else {
|
|
MOZ_ASSERT_IF(mSharedWorkers[i]->GetOwner() && aWindow,
|
|
!SameCOMIdentity(mSharedWorkers[i]->GetOwner(),
|
|
aWindow));
|
|
if (!mSharedWorkers[i]->IsFrozen()) {
|
|
anyRunning = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!anyRunning || !mParentFrozen) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(mParentFrozen);
|
|
|
|
mParentFrozen = false;
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (mParentStatus >= Terminating) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
EnableDebugger();
|
|
|
|
// Execute queued runnables before waking up the worker, otherwise the worker
|
|
// could post new messages before we run those that have been queued.
|
|
if (!IsParentWindowPaused() && !mQueuedRunnables.IsEmpty()) {
|
|
MOZ_ASSERT(IsDedicatedWorker());
|
|
|
|
nsTArray<nsCOMPtr<nsIRunnable>> runnables;
|
|
mQueuedRunnables.SwapElements(runnables);
|
|
|
|
for (uint32_t index = 0; index < runnables.Length(); index++) {
|
|
runnables[index]->Run();
|
|
}
|
|
}
|
|
|
|
RefPtr<ThawRunnable> runnable =
|
|
new ThawRunnable(ParentAsWorkerPrivate());
|
|
if (!runnable->Dispatch()) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::ParentWindowPaused()
|
|
{
|
|
AssertIsOnMainThread();
|
|
MOZ_ASSERT_IF(IsDedicatedWorker(), mParentWindowPausedDepth == 0);
|
|
mParentWindowPausedDepth += 1;
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::ParentWindowResumed()
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
MOZ_ASSERT(mParentWindowPausedDepth > 0);
|
|
MOZ_ASSERT_IF(IsDedicatedWorker(), mParentWindowPausedDepth == 1);
|
|
mParentWindowPausedDepth -= 1;
|
|
if (mParentWindowPausedDepth > 0) {
|
|
return;
|
|
}
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (mParentStatus >= Terminating) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Execute queued runnables before waking up, otherwise the worker could post
|
|
// new messages before we run those that have been queued.
|
|
if (!IsFrozen() && !mQueuedRunnables.IsEmpty()) {
|
|
MOZ_ASSERT(IsDedicatedWorker());
|
|
|
|
nsTArray<nsCOMPtr<nsIRunnable>> runnables;
|
|
mQueuedRunnables.SwapElements(runnables);
|
|
|
|
for (uint32_t index = 0; index < runnables.Length(); index++) {
|
|
runnables[index]->Run();
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
bool
|
|
WorkerPrivateParent<Derived>::Close()
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (mParentStatus < Closing) {
|
|
mParentStatus = Closing;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <class Derived>
|
|
bool
|
|
WorkerPrivateParent<Derived>::ModifyBusyCount(bool aIncrease)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
NS_ASSERTION(aIncrease || mBusyCount, "Mismatched busy count mods!");
|
|
|
|
if (aIncrease) {
|
|
mBusyCount++;
|
|
return true;
|
|
}
|
|
|
|
if (--mBusyCount == 0) {
|
|
|
|
bool shouldCancel;
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
shouldCancel = mParentStatus == Terminating;
|
|
}
|
|
|
|
if (shouldCancel && !Cancel()) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::ForgetOverridenLoadGroup(
|
|
nsCOMPtr<nsILoadGroup>& aLoadGroupOut)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
// If we're not overriden, then do nothing here. Let the load group get
|
|
// handled in ForgetMainThreadObjects().
|
|
if (!mLoadInfo.mInterfaceRequestor) {
|
|
return;
|
|
}
|
|
|
|
mLoadInfo.mLoadGroup.swap(aLoadGroupOut);
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::ForgetMainThreadObjects(
|
|
nsTArray<nsCOMPtr<nsISupports> >& aDoomed)
|
|
{
|
|
AssertIsOnParentThread();
|
|
MOZ_ASSERT(!mMainThreadObjectsForgotten);
|
|
|
|
static const uint32_t kDoomedCount = 10;
|
|
|
|
aDoomed.SetCapacity(kDoomedCount);
|
|
|
|
SwapToISupportsArray(mLoadInfo.mWindow, aDoomed);
|
|
SwapToISupportsArray(mLoadInfo.mScriptContext, aDoomed);
|
|
SwapToISupportsArray(mLoadInfo.mBaseURI, aDoomed);
|
|
SwapToISupportsArray(mLoadInfo.mResolvedScriptURI, aDoomed);
|
|
SwapToISupportsArray(mLoadInfo.mPrincipal, aDoomed);
|
|
SwapToISupportsArray(mLoadInfo.mChannel, aDoomed);
|
|
SwapToISupportsArray(mLoadInfo.mCSP, aDoomed);
|
|
SwapToISupportsArray(mLoadInfo.mLoadGroup, aDoomed);
|
|
SwapToISupportsArray(mLoadInfo.mLoadFailedAsyncRunnable, aDoomed);
|
|
SwapToISupportsArray(mLoadInfo.mInterfaceRequestor, aDoomed);
|
|
// Before adding anything here update kDoomedCount above!
|
|
|
|
MOZ_ASSERT(aDoomed.Length() == kDoomedCount);
|
|
|
|
mMainThreadObjectsForgotten = true;
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::PostMessageInternal(
|
|
JSContext* aCx,
|
|
JS::Handle<JS::Value> aMessage,
|
|
const Optional<Sequence<JS::Value>>& aTransferable,
|
|
UniquePtr<ServiceWorkerClientInfo>&& aClientInfo,
|
|
PromiseNativeHandler* aHandler,
|
|
ErrorResult& aRv)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
if (mParentStatus > Running) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
JS::Rooted<JS::Value> transferable(aCx, JS::UndefinedValue());
|
|
if (aTransferable.WasPassed()) {
|
|
const Sequence<JS::Value>& realTransferable = aTransferable.Value();
|
|
|
|
// The input sequence only comes from the generated bindings code, which
|
|
// ensures it is rooted.
|
|
JS::HandleValueArray elements =
|
|
JS::HandleValueArray::fromMarkedLocation(realTransferable.Length(),
|
|
realTransferable.Elements());
|
|
|
|
JSObject* array =
|
|
JS_NewArrayObject(aCx, elements);
|
|
if (!array) {
|
|
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
|
|
return;
|
|
}
|
|
transferable.setObject(*array);
|
|
}
|
|
|
|
RefPtr<MessageEventRunnable> runnable =
|
|
new MessageEventRunnable(ParentAsWorkerPrivate(),
|
|
WorkerRunnable::WorkerThreadModifyBusyCount);
|
|
|
|
UniquePtr<AbstractTimelineMarker> start;
|
|
UniquePtr<AbstractTimelineMarker> end;
|
|
RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get();
|
|
bool isTimelineRecording = timelines && !timelines->IsEmpty();
|
|
|
|
if (isTimelineRecording) {
|
|
start = MakeUnique<WorkerTimelineMarker>(NS_IsMainThread()
|
|
? ProfileTimelineWorkerOperationType::SerializeDataOnMainThread
|
|
: ProfileTimelineWorkerOperationType::SerializeDataOffMainThread,
|
|
MarkerTracingType::START);
|
|
}
|
|
|
|
runnable->Write(aCx, aMessage, transferable, JS::CloneDataPolicy(), aRv);
|
|
|
|
if (isTimelineRecording) {
|
|
end = MakeUnique<WorkerTimelineMarker>(NS_IsMainThread()
|
|
? ProfileTimelineWorkerOperationType::SerializeDataOnMainThread
|
|
: ProfileTimelineWorkerOperationType::SerializeDataOffMainThread,
|
|
MarkerTracingType::END);
|
|
timelines->AddMarkerForAllObservedDocShells(start);
|
|
timelines->AddMarkerForAllObservedDocShells(end);
|
|
}
|
|
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return;
|
|
}
|
|
|
|
runnable->SetServiceWorkerData(Move(aClientInfo), aHandler);
|
|
|
|
if (!runnable->Dispatch()) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::PostMessage(
|
|
JSContext* aCx, JS::Handle<JS::Value> aMessage,
|
|
const Optional<Sequence<JS::Value>>& aTransferable,
|
|
ErrorResult& aRv)
|
|
{
|
|
PostMessageInternal(aCx, aMessage, aTransferable, nullptr, nullptr, aRv);
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::PostMessageToServiceWorker(
|
|
JSContext* aCx, JS::Handle<JS::Value> aMessage,
|
|
const Optional<Sequence<JS::Value>>& aTransferable,
|
|
UniquePtr<ServiceWorkerClientInfo>&& aClientInfo,
|
|
PromiseNativeHandler* aHandler,
|
|
ErrorResult& aRv)
|
|
{
|
|
AssertIsOnMainThread();
|
|
PostMessageInternal(aCx, aMessage, aTransferable, Move(aClientInfo),
|
|
aHandler, aRv);
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::UpdateContextOptions(
|
|
const JS::ContextOptions& aContextOptions)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
mJSSettings.contextOptions = aContextOptions;
|
|
}
|
|
|
|
RefPtr<UpdateContextOptionsRunnable> runnable =
|
|
new UpdateContextOptionsRunnable(ParentAsWorkerPrivate(), aContextOptions);
|
|
if (!runnable->Dispatch()) {
|
|
NS_WARNING("Failed to update worker context options!");
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::UpdatePreference(WorkerPreference aPref, bool aValue)
|
|
{
|
|
AssertIsOnParentThread();
|
|
MOZ_ASSERT(aPref >= 0 && aPref < WORKERPREF_COUNT);
|
|
|
|
RefPtr<UpdatePreferenceRunnable> runnable =
|
|
new UpdatePreferenceRunnable(ParentAsWorkerPrivate(), aPref, aValue);
|
|
if (!runnable->Dispatch()) {
|
|
NS_WARNING("Failed to update worker preferences!");
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::UpdateLanguages(const nsTArray<nsString>& aLanguages)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
RefPtr<UpdateLanguagesRunnable> runnable =
|
|
new UpdateLanguagesRunnable(ParentAsWorkerPrivate(), aLanguages);
|
|
if (!runnable->Dispatch()) {
|
|
NS_WARNING("Failed to update worker languages!");
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::UpdateJSWorkerMemoryParameter(JSGCParamKey aKey,
|
|
uint32_t aValue)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
bool found = false;
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
found = mJSSettings.ApplyGCSetting(aKey, aValue);
|
|
}
|
|
|
|
if (found) {
|
|
RefPtr<UpdateJSWorkerMemoryParameterRunnable> runnable =
|
|
new UpdateJSWorkerMemoryParameterRunnable(ParentAsWorkerPrivate(), aKey,
|
|
aValue);
|
|
if (!runnable->Dispatch()) {
|
|
NS_WARNING("Failed to update memory parameter!");
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::GarbageCollect(bool aShrinking)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
RefPtr<GarbageCollectRunnable> runnable =
|
|
new GarbageCollectRunnable(ParentAsWorkerPrivate(), aShrinking,
|
|
/* collectChildren = */ true);
|
|
if (!runnable->Dispatch()) {
|
|
NS_WARNING("Failed to GC worker!");
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::CycleCollect(bool aDummy)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
RefPtr<CycleCollectRunnable> runnable =
|
|
new CycleCollectRunnable(ParentAsWorkerPrivate(),
|
|
/* collectChildren = */ true);
|
|
if (!runnable->Dispatch()) {
|
|
NS_WARNING("Failed to CC worker!");
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::OfflineStatusChangeEvent(bool aIsOffline)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
RefPtr<OfflineStatusChangeRunnable> runnable =
|
|
new OfflineStatusChangeRunnable(ParentAsWorkerPrivate(), aIsOffline);
|
|
if (!runnable->Dispatch()) {
|
|
NS_WARNING("Failed to dispatch offline status change event!");
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::OfflineStatusChangeEventInternal(bool aIsOffline)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
// The worker is already in this state. No need to dispatch an event.
|
|
if (mOnLine == !aIsOffline) {
|
|
return;
|
|
}
|
|
|
|
for (uint32_t index = 0; index < mChildWorkers.Length(); ++index) {
|
|
mChildWorkers[index]->OfflineStatusChangeEvent(aIsOffline);
|
|
}
|
|
|
|
mOnLine = !aIsOffline;
|
|
WorkerGlobalScope* globalScope = GlobalScope();
|
|
RefPtr<WorkerNavigator> nav = globalScope->GetExistingNavigator();
|
|
if (nav) {
|
|
nav->SetOnLine(mOnLine);
|
|
}
|
|
|
|
nsString eventType;
|
|
if (aIsOffline) {
|
|
eventType.AssignLiteral("offline");
|
|
} else {
|
|
eventType.AssignLiteral("online");
|
|
}
|
|
|
|
RefPtr<Event> event = NS_NewDOMEvent(globalScope, nullptr, nullptr);
|
|
|
|
event->InitEvent(eventType, false, false);
|
|
event->SetTrusted(true);
|
|
|
|
globalScope->DispatchDOMEvent(nullptr, event, nullptr, nullptr);
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::MemoryPressure(bool aDummy)
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
RefPtr<MemoryPressureRunnable> runnable =
|
|
new MemoryPressureRunnable(ParentAsWorkerPrivate());
|
|
Unused << NS_WARN_IF(!runnable->Dispatch());
|
|
}
|
|
|
|
template <class Derived>
|
|
bool
|
|
WorkerPrivateParent<Derived>::RegisterSharedWorker(SharedWorker* aSharedWorker,
|
|
MessagePort* aPort)
|
|
{
|
|
AssertIsOnMainThread();
|
|
MOZ_ASSERT(aSharedWorker);
|
|
MOZ_ASSERT(IsSharedWorker());
|
|
MOZ_ASSERT(!mSharedWorkers.Contains(aSharedWorker));
|
|
|
|
if (IsSharedWorker()) {
|
|
RefPtr<MessagePortRunnable> runnable =
|
|
new MessagePortRunnable(ParentAsWorkerPrivate(), aPort);
|
|
if (!runnable->Dispatch()) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
mSharedWorkers.AppendElement(aSharedWorker);
|
|
|
|
// If there were other SharedWorker objects attached to this worker then they
|
|
// may all have been frozen and this worker would need to be thawed.
|
|
if (mSharedWorkers.Length() > 1 && IsFrozen() && !Thaw(nullptr)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::BroadcastErrorToSharedWorkers(
|
|
JSContext* aCx,
|
|
const WorkerErrorReport* aReport,
|
|
bool aIsErrorEvent)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (aIsErrorEvent && JSREPORT_IS_WARNING(aReport->mFlags)) {
|
|
// Don't fire any events anywhere. Just log to console.
|
|
// XXXbz should we log to all the consoles of all the relevant windows?
|
|
MOZ_ASSERT(aReport);
|
|
LogErrorToConsole(*aReport, 0);
|
|
return;
|
|
}
|
|
|
|
AutoTArray<RefPtr<SharedWorker>, 10> sharedWorkers;
|
|
GetAllSharedWorkers(sharedWorkers);
|
|
|
|
if (sharedWorkers.IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
AutoTArray<WindowAction, 10> windowActions;
|
|
nsresult rv;
|
|
|
|
// First fire the error event at all SharedWorker objects. This may include
|
|
// multiple objects in a single window as well as objects in different
|
|
// windows.
|
|
for (size_t index = 0; index < sharedWorkers.Length(); index++) {
|
|
RefPtr<SharedWorker>& sharedWorker = sharedWorkers[index];
|
|
|
|
// May be null.
|
|
nsPIDOMWindowInner* window = sharedWorker->GetOwner();
|
|
|
|
RefPtr<Event> event;
|
|
|
|
if (aIsErrorEvent) {
|
|
RootedDictionary<ErrorEventInit> errorInit(aCx);
|
|
errorInit.mBubbles = false;
|
|
errorInit.mCancelable = true;
|
|
errorInit.mMessage = aReport->mMessage;
|
|
errorInit.mFilename = aReport->mFilename;
|
|
errorInit.mLineno = aReport->mLineNumber;
|
|
errorInit.mColno = aReport->mColumnNumber;
|
|
|
|
event = ErrorEvent::Constructor(sharedWorker, NS_LITERAL_STRING("error"),
|
|
errorInit);
|
|
} else {
|
|
event = Event::Constructor(sharedWorker, NS_LITERAL_STRING("error"),
|
|
EventInit());
|
|
}
|
|
|
|
if (!event) {
|
|
ThrowAndReport(window, NS_ERROR_UNEXPECTED);
|
|
continue;
|
|
}
|
|
|
|
event->SetTrusted(true);
|
|
|
|
bool defaultActionEnabled;
|
|
nsresult rv = sharedWorker->DispatchEvent(event, &defaultActionEnabled);
|
|
if (NS_FAILED(rv)) {
|
|
ThrowAndReport(window, rv);
|
|
continue;
|
|
}
|
|
|
|
if (!aIsErrorEvent) {
|
|
continue;
|
|
}
|
|
|
|
if (defaultActionEnabled) {
|
|
// Add the owning window to our list so that we will fire an error event
|
|
// at it later.
|
|
if (!windowActions.Contains(window)) {
|
|
windowActions.AppendElement(WindowAction(window));
|
|
}
|
|
} else {
|
|
size_t actionsIndex = windowActions.LastIndexOf(WindowAction(window));
|
|
if (actionsIndex != windowActions.NoIndex) {
|
|
// Any listener that calls preventDefault() will prevent the window from
|
|
// receiving the error event.
|
|
windowActions[actionsIndex].mDefaultAction = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If there are no windows to consider further then we're done.
|
|
if (windowActions.IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
bool shouldLogErrorToConsole = true;
|
|
|
|
// Now fire error events at all the windows remaining.
|
|
for (uint32_t index = 0; index < windowActions.Length(); index++) {
|
|
WindowAction& windowAction = windowActions[index];
|
|
|
|
// If there is no window or the script already called preventDefault then
|
|
// skip this window.
|
|
if (!windowAction.mWindow || !windowAction.mDefaultAction) {
|
|
continue;
|
|
}
|
|
|
|
nsCOMPtr<nsIScriptGlobalObject> sgo =
|
|
do_QueryInterface(windowAction.mWindow);
|
|
MOZ_ASSERT(sgo);
|
|
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
RootedDictionary<ErrorEventInit> init(aCx);
|
|
init.mLineno = aReport->mLineNumber;
|
|
init.mFilename = aReport->mFilename;
|
|
init.mMessage = aReport->mMessage;
|
|
init.mCancelable = true;
|
|
init.mBubbles = true;
|
|
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
rv = sgo->HandleScriptError(init, &status);
|
|
if (NS_FAILED(rv)) {
|
|
ThrowAndReport(windowAction.mWindow, rv);
|
|
continue;
|
|
}
|
|
|
|
if (status == nsEventStatus_eConsumeNoDefault) {
|
|
shouldLogErrorToConsole = false;
|
|
}
|
|
}
|
|
|
|
// Finally log a warning in the console if no window tried to prevent it.
|
|
if (shouldLogErrorToConsole) {
|
|
MOZ_ASSERT(aReport);
|
|
LogErrorToConsole(*aReport, 0);
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::GetAllSharedWorkers(
|
|
nsTArray<RefPtr<SharedWorker>>& aSharedWorkers)
|
|
{
|
|
AssertIsOnMainThread();
|
|
MOZ_ASSERT(IsSharedWorker() || IsServiceWorker());
|
|
|
|
if (!aSharedWorkers.IsEmpty()) {
|
|
aSharedWorkers.Clear();
|
|
}
|
|
|
|
for (uint32_t i = 0; i < mSharedWorkers.Length(); ++i) {
|
|
aSharedWorkers.AppendElement(mSharedWorkers[i]);
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::CloseSharedWorkersForWindow(
|
|
nsPIDOMWindowInner* aWindow)
|
|
{
|
|
AssertIsOnMainThread();
|
|
MOZ_ASSERT(IsSharedWorker() || IsServiceWorker());
|
|
MOZ_ASSERT(aWindow);
|
|
|
|
bool someRemoved = false;
|
|
|
|
for (uint32_t i = 0; i < mSharedWorkers.Length();) {
|
|
if (mSharedWorkers[i]->GetOwner() == aWindow) {
|
|
mSharedWorkers[i]->Close();
|
|
mSharedWorkers.RemoveElementAt(i);
|
|
someRemoved = true;
|
|
} else {
|
|
MOZ_ASSERT(!SameCOMIdentity(mSharedWorkers[i]->GetOwner(),
|
|
aWindow));
|
|
++i;
|
|
}
|
|
}
|
|
|
|
if (!someRemoved) {
|
|
return;
|
|
}
|
|
|
|
// If there are still SharedWorker objects attached to this worker then they
|
|
// may all be frozen and this worker would need to be frozen. Otherwise,
|
|
// if that was the last SharedWorker then it's time to cancel this worker.
|
|
|
|
if (!mSharedWorkers.IsEmpty()) {
|
|
Freeze(nullptr);
|
|
} else {
|
|
Cancel();
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::CloseAllSharedWorkers()
|
|
{
|
|
AssertIsOnMainThread();
|
|
MOZ_ASSERT(IsSharedWorker() || IsServiceWorker());
|
|
|
|
for (uint32_t i = 0; i < mSharedWorkers.Length(); ++i) {
|
|
mSharedWorkers[i]->Close();
|
|
}
|
|
|
|
mSharedWorkers.Clear();
|
|
|
|
Cancel();
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::WorkerScriptLoaded()
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (IsSharedWorker() || IsServiceWorker()) {
|
|
// No longer need to hold references to the window or document we came from.
|
|
mLoadInfo.mWindow = nullptr;
|
|
mLoadInfo.mScriptContext = nullptr;
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::SetBaseURI(nsIURI* aBaseURI)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (!mLoadInfo.mBaseURI) {
|
|
NS_ASSERTION(GetParent(), "Shouldn't happen without a parent!");
|
|
mLoadInfo.mResolvedScriptURI = aBaseURI;
|
|
}
|
|
|
|
mLoadInfo.mBaseURI = aBaseURI;
|
|
|
|
if (NS_FAILED(aBaseURI->GetSpec(mLocationInfo.mHref))) {
|
|
mLocationInfo.mHref.Truncate();
|
|
}
|
|
|
|
mLocationInfo.mHostname.Truncate();
|
|
nsContentUtils::GetHostOrIPv6WithBrackets(aBaseURI, mLocationInfo.mHostname);
|
|
|
|
nsCOMPtr<nsIURL> url(do_QueryInterface(aBaseURI));
|
|
if (!url || NS_FAILED(url->GetFilePath(mLocationInfo.mPathname))) {
|
|
mLocationInfo.mPathname.Truncate();
|
|
}
|
|
|
|
nsCString temp;
|
|
|
|
if (url && NS_SUCCEEDED(url->GetQuery(temp)) && !temp.IsEmpty()) {
|
|
mLocationInfo.mSearch.Assign('?');
|
|
mLocationInfo.mSearch.Append(temp);
|
|
}
|
|
|
|
if (NS_SUCCEEDED(aBaseURI->GetRef(temp)) && !temp.IsEmpty()) {
|
|
nsCOMPtr<nsITextToSubURI> converter =
|
|
do_GetService(NS_ITEXTTOSUBURI_CONTRACTID);
|
|
if (converter && nsContentUtils::GettersDecodeURLHash()) {
|
|
nsCString charset;
|
|
nsAutoString unicodeRef;
|
|
if (NS_SUCCEEDED(aBaseURI->GetOriginCharset(charset)) &&
|
|
NS_SUCCEEDED(converter->UnEscapeURIForUI(charset, temp,
|
|
unicodeRef))) {
|
|
mLocationInfo.mHash.Assign('#');
|
|
mLocationInfo.mHash.Append(NS_ConvertUTF16toUTF8(unicodeRef));
|
|
}
|
|
}
|
|
|
|
if (mLocationInfo.mHash.IsEmpty()) {
|
|
mLocationInfo.mHash.Assign('#');
|
|
mLocationInfo.mHash.Append(temp);
|
|
}
|
|
}
|
|
|
|
if (NS_SUCCEEDED(aBaseURI->GetScheme(mLocationInfo.mProtocol))) {
|
|
mLocationInfo.mProtocol.Append(':');
|
|
}
|
|
else {
|
|
mLocationInfo.mProtocol.Truncate();
|
|
}
|
|
|
|
int32_t port;
|
|
if (NS_SUCCEEDED(aBaseURI->GetPort(&port)) && port != -1) {
|
|
mLocationInfo.mPort.AppendInt(port);
|
|
|
|
nsAutoCString host(mLocationInfo.mHostname);
|
|
host.Append(':');
|
|
host.Append(mLocationInfo.mPort);
|
|
|
|
mLocationInfo.mHost.Assign(host);
|
|
}
|
|
else {
|
|
mLocationInfo.mHost.Assign(mLocationInfo.mHostname);
|
|
}
|
|
|
|
nsContentUtils::GetUTFOrigin(aBaseURI, mLocationInfo.mOrigin);
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::SetPrincipal(nsIPrincipal* aPrincipal,
|
|
nsILoadGroup* aLoadGroup)
|
|
{
|
|
AssertIsOnMainThread();
|
|
MOZ_ASSERT(NS_LoadGroupMatchesPrincipal(aLoadGroup, aPrincipal));
|
|
MOZ_ASSERT(!mLoadInfo.mPrincipalInfo);
|
|
|
|
mLoadInfo.mPrincipal = aPrincipal;
|
|
mLoadInfo.mPrincipalIsSystem = nsContentUtils::IsSystemPrincipal(aPrincipal);
|
|
|
|
aPrincipal->GetCsp(getter_AddRefs(mLoadInfo.mCSP));
|
|
|
|
if (mLoadInfo.mCSP) {
|
|
mLoadInfo.mCSP->GetAllowsEval(&mLoadInfo.mReportCSPViolations,
|
|
&mLoadInfo.mEvalAllowed);
|
|
// Set ReferrerPolicy
|
|
bool hasReferrerPolicy = false;
|
|
uint32_t rp = mozilla::net::RP_Default;
|
|
|
|
nsresult rv = mLoadInfo.mCSP->GetReferrerPolicy(&rp, &hasReferrerPolicy);
|
|
NS_ENSURE_SUCCESS_VOID(rv);
|
|
|
|
if (hasReferrerPolicy) {
|
|
mLoadInfo.mReferrerPolicy = static_cast<net::ReferrerPolicy>(rp);
|
|
}
|
|
} else {
|
|
mLoadInfo.mEvalAllowed = true;
|
|
mLoadInfo.mReportCSPViolations = false;
|
|
}
|
|
|
|
mLoadInfo.mLoadGroup = aLoadGroup;
|
|
|
|
mLoadInfo.mPrincipalInfo = new PrincipalInfo();
|
|
mLoadInfo.mOriginAttributes = nsContentUtils::GetOriginAttributes(aLoadGroup);
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(
|
|
PrincipalToPrincipalInfo(aPrincipal, mLoadInfo.mPrincipalInfo));
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::UpdateOverridenLoadGroup(nsILoadGroup* aBaseLoadGroup)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
// The load group should have been overriden at init time.
|
|
mLoadInfo.mInterfaceRequestor->MaybeAddTabChild(aBaseLoadGroup);
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::FlushReportsToSharedWorkers(
|
|
nsIConsoleReportCollector* aReporter)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
AutoTArray<RefPtr<SharedWorker>, 10> sharedWorkers;
|
|
AutoTArray<WindowAction, 10> windowActions;
|
|
GetAllSharedWorkers(sharedWorkers);
|
|
|
|
// First find out all the shared workers' window.
|
|
for (size_t index = 0; index < sharedWorkers.Length(); index++) {
|
|
RefPtr<SharedWorker>& sharedWorker = sharedWorkers[index];
|
|
|
|
// May be null.
|
|
nsPIDOMWindowInner* window = sharedWorker->GetOwner();
|
|
|
|
// Add the owning window to our list so that we will flush the reports later.
|
|
if (window && !windowActions.Contains(window)) {
|
|
windowActions.AppendElement(WindowAction(window));
|
|
}
|
|
}
|
|
|
|
bool reportErrorToBrowserConsole = true;
|
|
|
|
// Flush the reports.
|
|
for (uint32_t index = 0; index < windowActions.Length(); index++) {
|
|
WindowAction& windowAction = windowActions[index];
|
|
|
|
aReporter->FlushConsoleReports(windowAction.mWindow->GetExtantDoc(),
|
|
nsIConsoleReportCollector::ReportAction::Save);
|
|
reportErrorToBrowserConsole = false;
|
|
}
|
|
|
|
// Finally report to broswer console if there is no any window or shared
|
|
// worker.
|
|
if (reportErrorToBrowserConsole) {
|
|
aReporter->FlushConsoleReports((nsIDocument*)nullptr);
|
|
return;
|
|
}
|
|
|
|
aReporter->ClearConsoleReports();
|
|
}
|
|
|
|
template <class Derived>
|
|
NS_IMPL_ADDREF_INHERITED(WorkerPrivateParent<Derived>, DOMEventTargetHelper)
|
|
|
|
template <class Derived>
|
|
NS_IMPL_RELEASE_INHERITED(WorkerPrivateParent<Derived>, DOMEventTargetHelper)
|
|
|
|
template <class Derived>
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(WorkerPrivateParent<Derived>)
|
|
NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
|
|
|
|
template <class Derived>
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(WorkerPrivateParent<Derived>,
|
|
DOMEventTargetHelper)
|
|
tmp->AssertIsOnParentThread();
|
|
|
|
// The WorkerPrivate::mSelfRef has a reference to itself, which is really
|
|
// held by the worker thread. We traverse this reference if and only if our
|
|
// busy count is zero and we have not released the main thread reference.
|
|
// We do not unlink it. This allows the CC to break cycles involving the
|
|
// WorkerPrivate and begin shutting it down (which does happen in unlink) but
|
|
// ensures that the WorkerPrivate won't be deleted before we're done shutting
|
|
// down the thread.
|
|
|
|
if (!tmp->mBusyCount && !tmp->mMainThreadObjectsForgotten) {
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSelfRef)
|
|
}
|
|
|
|
// The various strong references in LoadInfo are managed manually and cannot
|
|
// be cycle collected.
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
template <class Derived>
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(WorkerPrivateParent<Derived>,
|
|
DOMEventTargetHelper)
|
|
tmp->Terminate();
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
|
|
template <class Derived>
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(WorkerPrivateParent<Derived>,
|
|
DOMEventTargetHelper)
|
|
tmp->AssertIsOnParentThread();
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_END
|
|
|
|
#ifdef DEBUG
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::AssertIsOnParentThread() const
|
|
{
|
|
if (GetParent()) {
|
|
GetParent()->AssertIsOnWorkerThread();
|
|
}
|
|
else {
|
|
AssertIsOnMainThread();
|
|
}
|
|
}
|
|
|
|
template <class Derived>
|
|
void
|
|
WorkerPrivateParent<Derived>::AssertInnerWindowIsCorrect() const
|
|
{
|
|
AssertIsOnParentThread();
|
|
|
|
// Only care about top level workers from windows.
|
|
if (mParent || !mLoadInfo.mWindow) {
|
|
return;
|
|
}
|
|
|
|
AssertIsOnMainThread();
|
|
|
|
nsPIDOMWindowOuter* outer = mLoadInfo.mWindow->GetOuterWindow();
|
|
NS_ASSERTION(outer && outer->GetCurrentInnerWindow() == mLoadInfo.mWindow,
|
|
"Inner window no longer correct!");
|
|
}
|
|
|
|
#endif
|
|
|
|
class PostDebuggerMessageRunnable final : public Runnable
|
|
{
|
|
WorkerDebugger *mDebugger;
|
|
nsString mMessage;
|
|
|
|
public:
|
|
PostDebuggerMessageRunnable(WorkerDebugger* aDebugger,
|
|
const nsAString& aMessage)
|
|
: mDebugger(aDebugger),
|
|
mMessage(aMessage)
|
|
{
|
|
}
|
|
|
|
private:
|
|
~PostDebuggerMessageRunnable()
|
|
{ }
|
|
|
|
NS_IMETHOD
|
|
Run() override
|
|
{
|
|
mDebugger->PostMessageToDebuggerOnMainThread(mMessage);
|
|
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
class ReportDebuggerErrorRunnable final : public Runnable
|
|
{
|
|
WorkerDebugger *mDebugger;
|
|
nsString mFilename;
|
|
uint32_t mLineno;
|
|
nsString mMessage;
|
|
|
|
public:
|
|
ReportDebuggerErrorRunnable(WorkerDebugger* aDebugger,
|
|
const nsAString& aFilename, uint32_t aLineno,
|
|
const nsAString& aMessage)
|
|
: mDebugger(aDebugger),
|
|
mFilename(aFilename),
|
|
mLineno(aLineno),
|
|
mMessage(aMessage)
|
|
{
|
|
}
|
|
|
|
private:
|
|
~ReportDebuggerErrorRunnable()
|
|
{ }
|
|
|
|
NS_IMETHOD
|
|
Run() override
|
|
{
|
|
mDebugger->ReportErrorToDebuggerOnMainThread(mFilename, mLineno, mMessage);
|
|
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
WorkerDebugger::WorkerDebugger(WorkerPrivate* aWorkerPrivate)
|
|
: mWorkerPrivate(aWorkerPrivate),
|
|
mIsInitialized(false)
|
|
{
|
|
AssertIsOnMainThread();
|
|
}
|
|
|
|
WorkerDebugger::~WorkerDebugger()
|
|
{
|
|
MOZ_ASSERT(!mWorkerPrivate);
|
|
|
|
if (!NS_IsMainThread()) {
|
|
for (size_t index = 0; index < mListeners.Length(); ++index) {
|
|
NS_ReleaseOnMainThread(mListeners[index].forget());
|
|
}
|
|
}
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(WorkerDebugger, nsIWorkerDebugger)
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::GetIsClosed(bool* aResult)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
*aResult = !mWorkerPrivate;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::GetIsChrome(bool* aResult)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (!mWorkerPrivate) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
*aResult = mWorkerPrivate->IsChromeWorker();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::GetIsInitialized(bool* aResult)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (!mWorkerPrivate) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
*aResult = mIsInitialized;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::GetParent(nsIWorkerDebugger** aResult)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (!mWorkerPrivate) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
WorkerPrivate* parent = mWorkerPrivate->GetParent();
|
|
if (!parent) {
|
|
*aResult = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
MOZ_ASSERT(mWorkerPrivate->IsDedicatedWorker());
|
|
|
|
nsCOMPtr<nsIWorkerDebugger> debugger = parent->Debugger();
|
|
debugger.forget(aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::GetType(uint32_t* aResult)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (!mWorkerPrivate) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
*aResult = mWorkerPrivate->Type();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::GetUrl(nsAString& aResult)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (!mWorkerPrivate) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
aResult = mWorkerPrivate->ScriptURL();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::GetWindow(mozIDOMWindow** aResult)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (!mWorkerPrivate) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
if (mWorkerPrivate->GetParent() || !mWorkerPrivate->IsDedicatedWorker()) {
|
|
*aResult = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsCOMPtr<nsPIDOMWindowInner> window = mWorkerPrivate->GetWindow();
|
|
window.forget(aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::GetPrincipal(nsIPrincipal** aResult)
|
|
{
|
|
AssertIsOnMainThread();
|
|
MOZ_ASSERT(aResult);
|
|
|
|
if (!mWorkerPrivate) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
nsCOMPtr<nsIPrincipal> prin = mWorkerPrivate->GetPrincipal();
|
|
prin.forget(aResult);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::GetServiceWorkerID(uint32_t* aResult)
|
|
{
|
|
AssertIsOnMainThread();
|
|
MOZ_ASSERT(aResult);
|
|
|
|
if (!mWorkerPrivate || !mWorkerPrivate->IsServiceWorker()) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
*aResult = mWorkerPrivate->ServiceWorkerID();
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::Initialize(const nsAString& aURL)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (!mWorkerPrivate) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
if (!mIsInitialized) {
|
|
RefPtr<CompileDebuggerScriptRunnable> runnable =
|
|
new CompileDebuggerScriptRunnable(mWorkerPrivate, aURL);
|
|
if (!runnable->Dispatch()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
mIsInitialized = true;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::PostMessageMoz(const nsAString& aMessage)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (!mWorkerPrivate || !mIsInitialized) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
RefPtr<DebuggerMessageEventRunnable> runnable =
|
|
new DebuggerMessageEventRunnable(mWorkerPrivate, aMessage);
|
|
if (!runnable->Dispatch()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::AddListener(nsIWorkerDebuggerListener* aListener)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (mListeners.Contains(aListener)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
mListeners.AppendElement(aListener);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
WorkerDebugger::RemoveListener(nsIWorkerDebuggerListener* aListener)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
if (!mListeners.Contains(aListener)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
mListeners.RemoveElement(aListener);
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
WorkerDebugger::Close()
|
|
{
|
|
MOZ_ASSERT(mWorkerPrivate);
|
|
mWorkerPrivate = nullptr;
|
|
|
|
nsTArray<nsCOMPtr<nsIWorkerDebuggerListener>> listeners(mListeners);
|
|
for (size_t index = 0; index < listeners.Length(); ++index) {
|
|
listeners[index]->OnClose();
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerDebugger::PostMessageToDebugger(const nsAString& aMessage)
|
|
{
|
|
mWorkerPrivate->AssertIsOnWorkerThread();
|
|
|
|
RefPtr<PostDebuggerMessageRunnable> runnable =
|
|
new PostDebuggerMessageRunnable(this, aMessage);
|
|
if (NS_FAILED(NS_DispatchToMainThread(runnable, NS_DISPATCH_NORMAL))) {
|
|
NS_WARNING("Failed to post message to debugger on main thread!");
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerDebugger::PostMessageToDebuggerOnMainThread(const nsAString& aMessage)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
nsTArray<nsCOMPtr<nsIWorkerDebuggerListener>> listeners(mListeners);
|
|
for (size_t index = 0; index < listeners.Length(); ++index) {
|
|
listeners[index]->OnMessage(aMessage);
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerDebugger::ReportErrorToDebugger(const nsAString& aFilename,
|
|
uint32_t aLineno,
|
|
const nsAString& aMessage)
|
|
{
|
|
mWorkerPrivate->AssertIsOnWorkerThread();
|
|
|
|
RefPtr<ReportDebuggerErrorRunnable> runnable =
|
|
new ReportDebuggerErrorRunnable(this, aFilename, aLineno, aMessage);
|
|
if (NS_FAILED(NS_DispatchToMainThread(runnable, NS_DISPATCH_NORMAL))) {
|
|
NS_WARNING("Failed to report error to debugger on main thread!");
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerDebugger::ReportErrorToDebuggerOnMainThread(const nsAString& aFilename,
|
|
uint32_t aLineno,
|
|
const nsAString& aMessage)
|
|
{
|
|
AssertIsOnMainThread();
|
|
|
|
nsTArray<nsCOMPtr<nsIWorkerDebuggerListener>> listeners(mListeners);
|
|
for (size_t index = 0; index < listeners.Length(); ++index) {
|
|
listeners[index]->OnError(aFilename, aLineno, aMessage);
|
|
}
|
|
|
|
WorkerErrorReport report;
|
|
report.mMessage = aMessage;
|
|
report.mFilename = aFilename;
|
|
LogErrorToConsole(report, 0);
|
|
}
|
|
|
|
WorkerPrivate::WorkerPrivate(WorkerPrivate* aParent,
|
|
const nsAString& aScriptURL,
|
|
bool aIsChromeWorker, WorkerType aWorkerType,
|
|
const nsACString& aWorkerName,
|
|
WorkerLoadInfo& aLoadInfo)
|
|
: WorkerPrivateParent<WorkerPrivate>(aParent, aScriptURL,
|
|
aIsChromeWorker, aWorkerType,
|
|
aWorkerName, aLoadInfo)
|
|
, mDebuggerRegistered(false)
|
|
, mDebugger(nullptr)
|
|
, mJSContext(nullptr)
|
|
, mPRThread(nullptr)
|
|
, mDebuggerEventLoopLevel(0)
|
|
, mMainThreadEventTarget(do_GetMainThread())
|
|
, mErrorHandlerRecursionCount(0)
|
|
, mNextTimeoutId(1)
|
|
, mStatus(Pending)
|
|
, mFrozen(false)
|
|
, mTimerRunning(false)
|
|
, mRunningExpiredTimeouts(false)
|
|
, mPendingEventQueueClearing(false)
|
|
, mCancelAllPendingRunnables(false)
|
|
, mPeriodicGCTimerRunning(false)
|
|
, mIdleGCTimerRunning(false)
|
|
, mWorkerScriptExecutedSuccessfully(false)
|
|
, mOnLine(false)
|
|
{
|
|
MOZ_ASSERT_IF(!IsDedicatedWorker(), !aWorkerName.IsVoid());
|
|
MOZ_ASSERT_IF(IsDedicatedWorker(), aWorkerName.IsEmpty());
|
|
|
|
if (aParent) {
|
|
aParent->AssertIsOnWorkerThread();
|
|
aParent->GetAllPreferences(mPreferences);
|
|
mOnLine = aParent->OnLine();
|
|
}
|
|
else {
|
|
AssertIsOnMainThread();
|
|
RuntimeService::GetDefaultPreferences(mPreferences);
|
|
mOnLine = !NS_IsOffline();
|
|
}
|
|
|
|
nsCOMPtr<nsIEventTarget> target;
|
|
|
|
// A child worker just inherits the parent workers ThrottledEventQueue
|
|
// and main thread target for now. This is mainly due to the restriction
|
|
// that ThrottledEventQueue can only be created on the main thread at the
|
|
// moment.
|
|
if (aParent) {
|
|
mMainThreadThrottledEventQueue = aParent->mMainThreadThrottledEventQueue;
|
|
mMainThreadEventTarget = aParent->mMainThreadEventTarget;
|
|
return;
|
|
}
|
|
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
target = GetWindow() ? GetWindow()->GetThrottledEventQueue() : nullptr;
|
|
|
|
if (!target) {
|
|
nsCOMPtr<nsIThread> mainThread;
|
|
NS_GetMainThread(getter_AddRefs(mainThread));
|
|
MOZ_DIAGNOSTIC_ASSERT(mainThread);
|
|
target = mainThread;
|
|
}
|
|
|
|
// Throttle events to the main thread using a ThrottledEventQueue specific to
|
|
// this worker thread. This may return nullptr during shutdown.
|
|
mMainThreadThrottledEventQueue = ThrottledEventQueue::Create(target);
|
|
|
|
// If we were able to creat the throttled event queue, then use it for
|
|
// dispatching our main thread runnables. Otherwise use our underlying
|
|
// base target.
|
|
if (mMainThreadThrottledEventQueue) {
|
|
mMainThreadEventTarget = mMainThreadThrottledEventQueue;
|
|
} else {
|
|
mMainThreadEventTarget = target.forget();
|
|
}
|
|
}
|
|
|
|
WorkerPrivate::~WorkerPrivate()
|
|
{
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<WorkerPrivate>
|
|
WorkerPrivate::Constructor(const GlobalObject& aGlobal,
|
|
const nsAString& aScriptURL,
|
|
ErrorResult& aRv)
|
|
{
|
|
return WorkerPrivate::Constructor(aGlobal, aScriptURL, false,
|
|
WorkerTypeDedicated, EmptyCString(),
|
|
nullptr, aRv);
|
|
}
|
|
|
|
// static
|
|
bool
|
|
WorkerPrivate::WorkerAvailable(JSContext* /* unused */, JSObject* /* unused */)
|
|
{
|
|
// If we're already on a worker workers are clearly enabled.
|
|
if (!NS_IsMainThread()) {
|
|
return true;
|
|
}
|
|
|
|
// If our caller is chrome, workers are always available.
|
|
if (nsContentUtils::IsCallerChrome()) {
|
|
return true;
|
|
}
|
|
|
|
// Else check the pref.
|
|
return Preferences::GetBool(PREF_WORKERS_ENABLED);
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<ChromeWorkerPrivate>
|
|
ChromeWorkerPrivate::Constructor(const GlobalObject& aGlobal,
|
|
const nsAString& aScriptURL,
|
|
ErrorResult& aRv)
|
|
{
|
|
return WorkerPrivate::Constructor(aGlobal, aScriptURL, true,
|
|
WorkerTypeDedicated, EmptyCString(),
|
|
nullptr, aRv)
|
|
.downcast<ChromeWorkerPrivate>();
|
|
}
|
|
|
|
// static
|
|
bool
|
|
ChromeWorkerPrivate::WorkerAvailable(JSContext* aCx, JSObject* /* unused */)
|
|
{
|
|
// Chrome is always allowed to use workers, and content is never
|
|
// allowed to use ChromeWorker, so all we have to check is the
|
|
// caller. However, chrome workers apparently might not have a
|
|
// system principal, so we have to check for them manually.
|
|
if (NS_IsMainThread()) {
|
|
return nsContentUtils::IsCallerChrome();
|
|
}
|
|
|
|
return GetWorkerPrivateFromContext(aCx)->IsChromeWorker();
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<WorkerPrivate>
|
|
WorkerPrivate::Constructor(const GlobalObject& aGlobal,
|
|
const nsAString& aScriptURL,
|
|
bool aIsChromeWorker, WorkerType aWorkerType,
|
|
const nsACString& aWorkerName,
|
|
WorkerLoadInfo* aLoadInfo, ErrorResult& aRv)
|
|
{
|
|
JSContext* cx = aGlobal.Context();
|
|
return Constructor(cx, aScriptURL, aIsChromeWorker, aWorkerType,
|
|
aWorkerName, aLoadInfo, aRv);
|
|
}
|
|
|
|
// static
|
|
already_AddRefed<WorkerPrivate>
|
|
WorkerPrivate::Constructor(JSContext* aCx,
|
|
const nsAString& aScriptURL,
|
|
bool aIsChromeWorker, WorkerType aWorkerType,
|
|
const nsACString& aWorkerName,
|
|
WorkerLoadInfo* aLoadInfo, ErrorResult& aRv)
|
|
{
|
|
// If this is a sub-worker, we need to keep the parent worker alive until this
|
|
// one is registered.
|
|
UniquePtr<SimpleWorkerHolder> holder;
|
|
|
|
WorkerPrivate* parent = NS_IsMainThread() ?
|
|
nullptr :
|
|
GetCurrentThreadWorkerPrivate();
|
|
if (parent) {
|
|
parent->AssertIsOnWorkerThread();
|
|
|
|
holder.reset(new SimpleWorkerHolder());
|
|
if (!holder->HoldWorker(parent, Canceling)) {
|
|
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return nullptr;
|
|
}
|
|
} else {
|
|
AssertIsOnMainThread();
|
|
}
|
|
|
|
// Only service and shared workers can have names.
|
|
MOZ_ASSERT_IF(aWorkerType != WorkerTypeDedicated,
|
|
!aWorkerName.IsVoid());
|
|
MOZ_ASSERT_IF(aWorkerType == WorkerTypeDedicated,
|
|
aWorkerName.IsEmpty());
|
|
|
|
Maybe<WorkerLoadInfo> stackLoadInfo;
|
|
if (!aLoadInfo) {
|
|
stackLoadInfo.emplace();
|
|
|
|
nsresult rv = GetLoadInfo(aCx, nullptr, parent, aScriptURL,
|
|
aIsChromeWorker, InheritLoadGroup,
|
|
aWorkerType, stackLoadInfo.ptr());
|
|
aRv.MightThrowJSException();
|
|
if (NS_FAILED(rv)) {
|
|
scriptloader::ReportLoadError(aRv, rv, aScriptURL);
|
|
return nullptr;
|
|
}
|
|
|
|
aLoadInfo = stackLoadInfo.ptr();
|
|
}
|
|
|
|
// NB: This has to be done before creating the WorkerPrivate, because it will
|
|
// attempt to use static variables that are initialized in the RuntimeService
|
|
// constructor.
|
|
RuntimeService* runtimeService;
|
|
|
|
if (!parent) {
|
|
runtimeService = RuntimeService::GetOrCreateService();
|
|
if (!runtimeService) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return nullptr;
|
|
}
|
|
}
|
|
else {
|
|
runtimeService = RuntimeService::GetService();
|
|
}
|
|
|
|
MOZ_ASSERT(runtimeService);
|
|
|
|
RefPtr<WorkerPrivate> worker =
|
|
new WorkerPrivate(parent, aScriptURL, aIsChromeWorker,
|
|
aWorkerType, aWorkerName, *aLoadInfo);
|
|
|
|
// Gecko contexts always have an explicitly-set default locale (set by
|
|
// XPJSRuntime::Initialize for the main thread, set by
|
|
// WorkerThreadPrimaryRunnable::Run for workers just before running worker
|
|
// code), so this is never SpiderMonkey's builtin default locale.
|
|
JS::UniqueChars defaultLocale = JS_GetDefaultLocale(aCx);
|
|
if (NS_WARN_IF(!defaultLocale)) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return nullptr;
|
|
}
|
|
|
|
worker->mDefaultLocale = Move(defaultLocale);
|
|
|
|
if (!runtimeService->RegisterWorker(worker)) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return nullptr;
|
|
}
|
|
|
|
worker->EnableDebugger();
|
|
|
|
RefPtr<CompileScriptRunnable> compiler =
|
|
new CompileScriptRunnable(worker, aScriptURL);
|
|
if (!compiler->Dispatch()) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return nullptr;
|
|
}
|
|
|
|
worker->mSelfRef = worker;
|
|
|
|
return worker.forget();
|
|
}
|
|
|
|
// static
|
|
nsresult
|
|
WorkerPrivate::GetLoadInfo(JSContext* aCx, nsPIDOMWindowInner* aWindow,
|
|
WorkerPrivate* aParent, const nsAString& aScriptURL,
|
|
bool aIsChromeWorker,
|
|
LoadGroupBehavior aLoadGroupBehavior,
|
|
WorkerType aWorkerType,
|
|
WorkerLoadInfo* aLoadInfo)
|
|
{
|
|
using namespace mozilla::dom::workers::scriptloader;
|
|
|
|
MOZ_ASSERT(aCx);
|
|
MOZ_ASSERT_IF(NS_IsMainThread(), aCx == nsContentUtils::GetCurrentJSContext());
|
|
|
|
if (aWindow) {
|
|
AssertIsOnMainThread();
|
|
}
|
|
|
|
WorkerLoadInfo loadInfo;
|
|
nsresult rv;
|
|
|
|
if (aParent) {
|
|
aParent->AssertIsOnWorkerThread();
|
|
|
|
// If the parent is going away give up now.
|
|
Status parentStatus;
|
|
{
|
|
MutexAutoLock lock(aParent->mMutex);
|
|
parentStatus = aParent->mStatus;
|
|
}
|
|
|
|
if (parentStatus > Running) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// StartAssignment() is used instead getter_AddRefs because, getter_AddRefs
|
|
// does QI in debug build and, if this worker runs in a child process,
|
|
// HttpChannelChild will crash because it's not thread-safe.
|
|
rv = ChannelFromScriptURLWorkerThread(aCx, aParent, aScriptURL,
|
|
loadInfo.mChannel.StartAssignment());
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Now that we've spun the loop there's no guarantee that our parent is
|
|
// still alive. We may have received control messages initiating shutdown.
|
|
{
|
|
MutexAutoLock lock(aParent->mMutex);
|
|
parentStatus = aParent->mStatus;
|
|
}
|
|
|
|
if (parentStatus > Running) {
|
|
NS_ReleaseOnMainThread(loadInfo.mChannel.forget());
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
loadInfo.mDomain = aParent->Domain();
|
|
loadInfo.mFromWindow = aParent->IsFromWindow();
|
|
loadInfo.mWindowID = aParent->WindowID();
|
|
loadInfo.mStorageAllowed = aParent->IsStorageAllowed();
|
|
loadInfo.mOriginAttributes = aParent->GetOriginAttributes();
|
|
loadInfo.mServiceWorkersTestingInWindow =
|
|
aParent->ServiceWorkersTestingInWindow();
|
|
} else {
|
|
AssertIsOnMainThread();
|
|
|
|
// Make sure that the IndexedDatabaseManager is set up
|
|
Unused << NS_WARN_IF(!IndexedDatabaseManager::GetOrCreate());
|
|
|
|
nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
|
|
MOZ_ASSERT(ssm);
|
|
|
|
bool isChrome = nsContentUtils::IsCallerChrome();
|
|
|
|
// First check to make sure the caller has permission to make a privileged
|
|
// worker if they called the ChromeWorker/ChromeSharedWorker constructor.
|
|
if (aIsChromeWorker && !isChrome) {
|
|
return NS_ERROR_DOM_SECURITY_ERR;
|
|
}
|
|
|
|
// Chrome callers (whether creating a ChromeWorker or Worker) always get the
|
|
// system principal here as they're allowed to load anything. The script
|
|
// loader will refuse to run any script that does not also have the system
|
|
// principal.
|
|
if (isChrome) {
|
|
rv = ssm->GetSystemPrincipal(getter_AddRefs(loadInfo.mPrincipal));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
loadInfo.mPrincipalIsSystem = true;
|
|
}
|
|
|
|
// See if we're being called from a window.
|
|
nsCOMPtr<nsPIDOMWindowInner> globalWindow = aWindow;
|
|
if (!globalWindow) {
|
|
nsCOMPtr<nsIScriptGlobalObject> scriptGlobal =
|
|
nsJSUtils::GetStaticScriptGlobal(JS::CurrentGlobalOrNull(aCx));
|
|
if (scriptGlobal) {
|
|
globalWindow = do_QueryInterface(scriptGlobal);
|
|
MOZ_ASSERT(globalWindow);
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIDocument> document;
|
|
|
|
if (globalWindow) {
|
|
// Only use the current inner window, and only use it if the caller can
|
|
// access it.
|
|
if (nsPIDOMWindowOuter* outerWindow = globalWindow->GetOuterWindow()) {
|
|
loadInfo.mWindow = outerWindow->GetCurrentInnerWindow();
|
|
// TODO: fix this for SharedWorkers with multiple documents (bug 1177935)
|
|
loadInfo.mServiceWorkersTestingInWindow =
|
|
outerWindow->GetServiceWorkersTestingEnabled();
|
|
}
|
|
|
|
if (!loadInfo.mWindow ||
|
|
(globalWindow != loadInfo.mWindow &&
|
|
!nsContentUtils::CanCallerAccess(loadInfo.mWindow))) {
|
|
return NS_ERROR_DOM_SECURITY_ERR;
|
|
}
|
|
|
|
nsCOMPtr<nsIScriptGlobalObject> sgo = do_QueryInterface(loadInfo.mWindow);
|
|
MOZ_ASSERT(sgo);
|
|
|
|
loadInfo.mScriptContext = sgo->GetContext();
|
|
NS_ENSURE_TRUE(loadInfo.mScriptContext, NS_ERROR_FAILURE);
|
|
|
|
// If we're called from a window then we can dig out the principal and URI
|
|
// from the document.
|
|
document = loadInfo.mWindow->GetExtantDoc();
|
|
NS_ENSURE_TRUE(document, NS_ERROR_FAILURE);
|
|
|
|
loadInfo.mBaseURI = document->GetDocBaseURI();
|
|
loadInfo.mLoadGroup = document->GetDocumentLoadGroup();
|
|
|
|
// Use the document's NodePrincipal as our principal if we're not being
|
|
// called from chrome.
|
|
if (!loadInfo.mPrincipal) {
|
|
loadInfo.mPrincipal = document->NodePrincipal();
|
|
NS_ENSURE_TRUE(loadInfo.mPrincipal, NS_ERROR_FAILURE);
|
|
|
|
// We use the document's base domain to limit the number of workers
|
|
// each domain can create. For sandboxed documents, we use the domain
|
|
// of their first non-sandboxed document, walking up until we find
|
|
// one. If we can't find one, we fall back to using the GUID of the
|
|
// null principal as the base domain.
|
|
if (document->GetSandboxFlags() & SANDBOXED_ORIGIN) {
|
|
nsCOMPtr<nsIDocument> tmpDoc = document;
|
|
do {
|
|
tmpDoc = tmpDoc->GetParentDocument();
|
|
} while (tmpDoc && tmpDoc->GetSandboxFlags() & SANDBOXED_ORIGIN);
|
|
|
|
if (tmpDoc) {
|
|
// There was an unsandboxed ancestor, yay!
|
|
nsCOMPtr<nsIPrincipal> tmpPrincipal = tmpDoc->NodePrincipal();
|
|
rv = tmpPrincipal->GetBaseDomain(loadInfo.mDomain);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
} else {
|
|
// No unsandboxed ancestor, use our GUID.
|
|
rv = loadInfo.mPrincipal->GetBaseDomain(loadInfo.mDomain);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
} else {
|
|
// Document creating the worker is not sandboxed.
|
|
rv = loadInfo.mPrincipal->GetBaseDomain(loadInfo.mDomain);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIPermissionManager> permMgr =
|
|
do_GetService(NS_PERMISSIONMANAGER_CONTRACTID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
uint32_t perm;
|
|
rv = permMgr->TestPermissionFromPrincipal(loadInfo.mPrincipal, "systemXHR",
|
|
&perm);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
loadInfo.mXHRParamsAllowed = perm == nsIPermissionManager::ALLOW_ACTION;
|
|
|
|
loadInfo.mFromWindow = true;
|
|
loadInfo.mWindowID = globalWindow->WindowID();
|
|
nsContentUtils::StorageAccess access =
|
|
nsContentUtils::StorageAllowedForWindow(globalWindow);
|
|
loadInfo.mStorageAllowed = access > nsContentUtils::StorageAccess::eDeny;
|
|
loadInfo.mOriginAttributes = nsContentUtils::GetOriginAttributes(document);
|
|
} else {
|
|
// Not a window
|
|
MOZ_ASSERT(isChrome);
|
|
|
|
// We're being created outside of a window. Need to figure out the script
|
|
// that is creating us in order for us to use relative URIs later on.
|
|
JS::AutoFilename fileName;
|
|
if (JS::DescribeScriptedCaller(aCx, &fileName)) {
|
|
// In most cases, fileName is URI. In a few other cases
|
|
// (e.g. xpcshell), fileName is a file path. Ideally, we would
|
|
// prefer testing whether fileName parses as an URI and fallback
|
|
// to file path in case of error, but Windows file paths have
|
|
// the interesting property that they can be parsed as bogus
|
|
// URIs (e.g. C:/Windows/Tmp is interpreted as scheme "C",
|
|
// hostname "Windows", path "Tmp"), which defeats this algorithm.
|
|
// Therefore, we adopt the opposite convention.
|
|
nsCOMPtr<nsIFile> scriptFile =
|
|
do_CreateInstance("@mozilla.org/file/local;1", &rv);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
rv = scriptFile->InitWithPath(NS_ConvertUTF8toUTF16(fileName.get()));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
rv = NS_NewFileURI(getter_AddRefs(loadInfo.mBaseURI),
|
|
scriptFile);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
// As expected, fileName is not a path, so proceed with
|
|
// a uri.
|
|
rv = NS_NewURI(getter_AddRefs(loadInfo.mBaseURI),
|
|
fileName.get());
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
loadInfo.mXHRParamsAllowed = true;
|
|
loadInfo.mFromWindow = false;
|
|
loadInfo.mWindowID = UINT64_MAX;
|
|
loadInfo.mStorageAllowed = true;
|
|
loadInfo.mOriginAttributes = PrincipalOriginAttributes();
|
|
}
|
|
|
|
MOZ_ASSERT(loadInfo.mPrincipal);
|
|
MOZ_ASSERT(isChrome || !loadInfo.mDomain.IsEmpty());
|
|
|
|
if (!loadInfo.mLoadGroup || aLoadGroupBehavior == OverrideLoadGroup) {
|
|
OverrideLoadInfoLoadGroup(loadInfo);
|
|
}
|
|
MOZ_ASSERT(NS_LoadGroupMatchesPrincipal(loadInfo.mLoadGroup,
|
|
loadInfo.mPrincipal));
|
|
|
|
// Top level workers' main script use the document charset for the script
|
|
// uri encoding.
|
|
bool useDefaultEncoding = false;
|
|
rv = ChannelFromScriptURLMainThread(loadInfo.mPrincipal, loadInfo.mBaseURI,
|
|
document, loadInfo.mLoadGroup,
|
|
aScriptURL,
|
|
ContentPolicyType(aWorkerType),
|
|
useDefaultEncoding,
|
|
getter_AddRefs(loadInfo.mChannel));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = NS_GetFinalChannelURI(loadInfo.mChannel,
|
|
getter_AddRefs(loadInfo.mResolvedScriptURI));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
aLoadInfo->StealFrom(loadInfo);
|
|
return NS_OK;
|
|
}
|
|
|
|
// static
|
|
void
|
|
WorkerPrivate::OverrideLoadInfoLoadGroup(WorkerLoadInfo& aLoadInfo)
|
|
{
|
|
MOZ_ASSERT(!aLoadInfo.mInterfaceRequestor);
|
|
|
|
aLoadInfo.mInterfaceRequestor =
|
|
new WorkerLoadInfo::InterfaceRequestor(aLoadInfo.mPrincipal,
|
|
aLoadInfo.mLoadGroup);
|
|
aLoadInfo.mInterfaceRequestor->MaybeAddTabChild(aLoadInfo.mLoadGroup);
|
|
|
|
// NOTE: this defaults the load context to:
|
|
// - private browsing = false
|
|
// - content = true
|
|
// - use remote tabs = false
|
|
nsCOMPtr<nsILoadGroup> loadGroup =
|
|
do_CreateInstance(NS_LOADGROUP_CONTRACTID);
|
|
|
|
nsresult rv =
|
|
loadGroup->SetNotificationCallbacks(aLoadInfo.mInterfaceRequestor);
|
|
MOZ_ALWAYS_SUCCEEDS(rv);
|
|
|
|
aLoadInfo.mLoadGroup = loadGroup.forget();
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::DoRunLoop(JSContext* aCx)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
MOZ_ASSERT(mThread);
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
mJSContext = aCx;
|
|
|
|
MOZ_ASSERT(mStatus == Pending);
|
|
mStatus = Running;
|
|
}
|
|
|
|
// Now that we've done that, we can go ahead and set up our AutoJSAPI. We
|
|
// can't before this point, because it can't find the right JSContext before
|
|
// then, since it gets it from our mJSContext.
|
|
AutoJSAPI jsapi;
|
|
jsapi.Init();
|
|
MOZ_ASSERT(jsapi.cx() == aCx);
|
|
|
|
EnableMemoryReporter();
|
|
|
|
InitializeGCTimers();
|
|
|
|
Maybe<JSAutoCompartment> workerCompartment;
|
|
|
|
for (;;) {
|
|
Status currentStatus, previousStatus;
|
|
bool debuggerRunnablesPending = false;
|
|
bool normalRunnablesPending = false;
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
previousStatus = mStatus;
|
|
|
|
while (mControlQueue.IsEmpty() &&
|
|
!(debuggerRunnablesPending = !mDebuggerQueue.IsEmpty()) &&
|
|
!(normalRunnablesPending = NS_HasPendingEvents(mThread))) {
|
|
WaitForWorkerEvents();
|
|
}
|
|
|
|
auto result = ProcessAllControlRunnablesLocked();
|
|
if (result != ProcessAllControlRunnablesResult::Nothing) {
|
|
// NB: There's no JS on the stack here, so Abort vs MayContinue is
|
|
// irrelevant
|
|
|
|
// The state of the world may have changed, recheck it.
|
|
normalRunnablesPending = NS_HasPendingEvents(mThread);
|
|
// The debugger queue doesn't get cleared, so we can ignore that.
|
|
}
|
|
|
|
currentStatus = mStatus;
|
|
}
|
|
|
|
// if all holders are done then we can kill this thread.
|
|
if (currentStatus != Running && !HasActiveHolders()) {
|
|
|
|
// If we just changed status, we must schedule the current runnables.
|
|
if (previousStatus != Running && currentStatus != Killing) {
|
|
NotifyInternal(aCx, Killing);
|
|
MOZ_ASSERT(!JS_IsExceptionPending(aCx));
|
|
|
|
#ifdef DEBUG
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
currentStatus = mStatus;
|
|
}
|
|
MOZ_ASSERT(currentStatus == Killing);
|
|
#else
|
|
currentStatus = Killing;
|
|
#endif
|
|
}
|
|
|
|
// If we're supposed to die then we should exit the loop.
|
|
if (currentStatus == Killing) {
|
|
// Flush uncaught rejections immediately, without
|
|
// waiting for a next tick.
|
|
PromiseDebugging::FlushUncaughtRejections();
|
|
|
|
ShutdownGCTimers();
|
|
|
|
DisableMemoryReporter();
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
mStatus = Dead;
|
|
mJSContext = nullptr;
|
|
}
|
|
|
|
// After mStatus is set to Dead there can be no more
|
|
// WorkerControlRunnables so no need to lock here.
|
|
if (!mControlQueue.IsEmpty()) {
|
|
WorkerControlRunnable* runnable;
|
|
while (mControlQueue.Pop(runnable)) {
|
|
runnable->Cancel();
|
|
runnable->Release();
|
|
}
|
|
}
|
|
|
|
// Unroot the globals
|
|
mScope = nullptr;
|
|
mDebuggerScope = nullptr;
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (debuggerRunnablesPending || normalRunnablesPending) {
|
|
// Start the periodic GC timer if it is not already running.
|
|
SetGCTimerMode(PeriodicTimer);
|
|
}
|
|
|
|
if (debuggerRunnablesPending) {
|
|
WorkerRunnable* runnable;
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
mDebuggerQueue.Pop(runnable);
|
|
debuggerRunnablesPending = !mDebuggerQueue.IsEmpty();
|
|
}
|
|
|
|
MOZ_ASSERT(runnable);
|
|
static_cast<nsIRunnable*>(runnable)->Run();
|
|
runnable->Release();
|
|
|
|
// Flush the promise queue.
|
|
Promise::PerformWorkerDebuggerMicroTaskCheckpoint();
|
|
|
|
if (debuggerRunnablesPending) {
|
|
WorkerDebuggerGlobalScope* globalScope = DebuggerGlobalScope();
|
|
MOZ_ASSERT(globalScope);
|
|
|
|
// Now *might* be a good time to GC. Let the JS engine make the decision.
|
|
JSAutoCompartment ac(aCx, globalScope->GetGlobalJSObject());
|
|
JS_MaybeGC(aCx);
|
|
}
|
|
} else if (normalRunnablesPending) {
|
|
// Process a single runnable from the main queue.
|
|
NS_ProcessNextEvent(mThread, false);
|
|
|
|
normalRunnablesPending = NS_HasPendingEvents(mThread);
|
|
if (normalRunnablesPending && GlobalScope()) {
|
|
// Now *might* be a good time to GC. Let the JS engine make the decision.
|
|
JSAutoCompartment ac(aCx, GlobalScope()->GetGlobalJSObject());
|
|
JS_MaybeGC(aCx);
|
|
}
|
|
}
|
|
|
|
if (!debuggerRunnablesPending && !normalRunnablesPending) {
|
|
// Both the debugger event queue and the normal event queue has been
|
|
// exhausted, cancel the periodic GC timer and schedule the idle GC timer.
|
|
SetGCTimerMode(IdleTimer);
|
|
}
|
|
|
|
// If the worker thread is spamming the main thread faster than it can
|
|
// process the work, then pause the worker thread until the MT catches
|
|
// up.
|
|
if (mMainThreadThrottledEventQueue &&
|
|
mMainThreadThrottledEventQueue->Length() > 5000) {
|
|
mMainThreadThrottledEventQueue->AwaitIdle();
|
|
}
|
|
}
|
|
|
|
MOZ_CRASH("Shouldn't get here!");
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::OnProcessNextEvent()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
uint32_t recursionDepth = CycleCollectedJSContext::Get()->RecursionDepth();
|
|
MOZ_ASSERT(recursionDepth);
|
|
|
|
// Normally we process control runnables in DoRunLoop or RunCurrentSyncLoop.
|
|
// However, it's possible that non-worker C++ could spin its own nested event
|
|
// loop, and in that case we must ensure that we continue to process control
|
|
// runnables here.
|
|
if (recursionDepth > 1 &&
|
|
mSyncLoopStack.Length() < recursionDepth - 1) {
|
|
Unused << ProcessAllControlRunnables();
|
|
// There's no running JS, and no state to revalidate, so we can ignore the
|
|
// return value.
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::AfterProcessNextEvent()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
MOZ_ASSERT(CycleCollectedJSContext::Get()->RecursionDepth());
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::MaybeDispatchLoadFailedRunnable()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
nsCOMPtr<nsIRunnable> runnable = StealLoadFailedAsyncRunnable();
|
|
if (!runnable) {
|
|
return;
|
|
}
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(runnable.forget()));
|
|
}
|
|
|
|
nsIEventTarget*
|
|
WorkerPrivate::MainThreadEventTarget()
|
|
{
|
|
return mMainThreadEventTarget;
|
|
}
|
|
|
|
nsresult
|
|
WorkerPrivate::DispatchToMainThread(nsIRunnable* aRunnable, uint32_t aFlags)
|
|
{
|
|
nsCOMPtr<nsIRunnable> r = aRunnable;
|
|
return DispatchToMainThread(r.forget(), aFlags);
|
|
}
|
|
|
|
nsresult
|
|
WorkerPrivate::DispatchToMainThread(already_AddRefed<nsIRunnable> aRunnable,
|
|
uint32_t aFlags)
|
|
{
|
|
return mMainThreadEventTarget->Dispatch(Move(aRunnable), aFlags);
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::InitializeGCTimers()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
// We need a timer for GC. The basic plan is to run a non-shrinking GC
|
|
// periodically (PERIODIC_GC_TIMER_DELAY_SEC) while the worker is running.
|
|
// Once the worker goes idle we set a short (IDLE_GC_TIMER_DELAY_SEC) timer to
|
|
// run a shrinking GC. If the worker receives more messages then the short
|
|
// timer is canceled and the periodic timer resumes.
|
|
mGCTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
|
|
MOZ_ASSERT(mGCTimer);
|
|
|
|
RefPtr<GarbageCollectRunnable> runnable =
|
|
new GarbageCollectRunnable(this, false, false);
|
|
mPeriodicGCTimerTarget = new TimerThreadEventTarget(this, runnable);
|
|
|
|
runnable = new GarbageCollectRunnable(this, true, false);
|
|
mIdleGCTimerTarget = new TimerThreadEventTarget(this, runnable);
|
|
|
|
mPeriodicGCTimerRunning = false;
|
|
mIdleGCTimerRunning = false;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::SetGCTimerMode(GCTimerMode aMode)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
MOZ_ASSERT(mGCTimer);
|
|
MOZ_ASSERT(mPeriodicGCTimerTarget);
|
|
MOZ_ASSERT(mIdleGCTimerTarget);
|
|
|
|
if ((aMode == PeriodicTimer && mPeriodicGCTimerRunning) ||
|
|
(aMode == IdleTimer && mIdleGCTimerRunning)) {
|
|
return;
|
|
}
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(mGCTimer->Cancel());
|
|
|
|
mPeriodicGCTimerRunning = false;
|
|
mIdleGCTimerRunning = false;
|
|
LOG(WorkerLog(),
|
|
("Worker %p canceled GC timer because %s\n", this,
|
|
aMode == PeriodicTimer ?
|
|
"periodic" :
|
|
aMode == IdleTimer ? "idle" : "none"));
|
|
|
|
if (aMode == NoTimer) {
|
|
return;
|
|
}
|
|
|
|
MOZ_ASSERT(aMode == PeriodicTimer || aMode == IdleTimer);
|
|
|
|
nsIEventTarget* target;
|
|
uint32_t delay;
|
|
int16_t type;
|
|
|
|
if (aMode == PeriodicTimer) {
|
|
target = mPeriodicGCTimerTarget;
|
|
delay = PERIODIC_GC_TIMER_DELAY_SEC * 1000;
|
|
type = nsITimer::TYPE_REPEATING_SLACK;
|
|
}
|
|
else {
|
|
target = mIdleGCTimerTarget;
|
|
delay = IDLE_GC_TIMER_DELAY_SEC * 1000;
|
|
type = nsITimer::TYPE_ONE_SHOT;
|
|
}
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(mGCTimer->SetTarget(target));
|
|
MOZ_ALWAYS_SUCCEEDS(
|
|
mGCTimer->InitWithNamedFuncCallback(DummyCallback, nullptr, delay, type,
|
|
"dom::workers::DummyCallback(2)"));
|
|
|
|
if (aMode == PeriodicTimer) {
|
|
LOG(WorkerLog(), ("Worker %p scheduled periodic GC timer\n", this));
|
|
mPeriodicGCTimerRunning = true;
|
|
}
|
|
else {
|
|
LOG(WorkerLog(), ("Worker %p scheduled idle GC timer\n", this));
|
|
mIdleGCTimerRunning = true;
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::ShutdownGCTimers()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
MOZ_ASSERT(mGCTimer);
|
|
|
|
// Always make sure the timer is canceled.
|
|
MOZ_ALWAYS_SUCCEEDS(mGCTimer->Cancel());
|
|
|
|
LOG(WorkerLog(), ("Worker %p killed the GC timer\n", this));
|
|
|
|
mGCTimer = nullptr;
|
|
mPeriodicGCTimerTarget = nullptr;
|
|
mIdleGCTimerTarget = nullptr;
|
|
mPeriodicGCTimerRunning = false;
|
|
mIdleGCTimerRunning = false;
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::InterruptCallback(JSContext* aCx)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
MOZ_ASSERT(!JS_IsExceptionPending(aCx));
|
|
|
|
bool mayContinue = true;
|
|
bool scheduledIdleGC = false;
|
|
|
|
for (;;) {
|
|
// Run all control events now.
|
|
auto result = ProcessAllControlRunnables();
|
|
if (result == ProcessAllControlRunnablesResult::Abort) {
|
|
mayContinue = false;
|
|
}
|
|
|
|
bool mayFreeze = mFrozen;
|
|
if (mayFreeze) {
|
|
MutexAutoLock lock(mMutex);
|
|
mayFreeze = mStatus <= Running;
|
|
}
|
|
|
|
if (!mayContinue || !mayFreeze) {
|
|
break;
|
|
}
|
|
|
|
// Cancel the periodic GC timer here before freezing. The idle GC timer
|
|
// will clean everything up once it runs.
|
|
if (!scheduledIdleGC) {
|
|
SetGCTimerMode(IdleTimer);
|
|
scheduledIdleGC = true;
|
|
}
|
|
|
|
while ((mayContinue = MayContinueRunning())) {
|
|
MutexAutoLock lock(mMutex);
|
|
if (!mControlQueue.IsEmpty()) {
|
|
break;
|
|
}
|
|
|
|
WaitForWorkerEvents(PR_MillisecondsToInterval(UINT32_MAX));
|
|
}
|
|
}
|
|
|
|
if (!mayContinue) {
|
|
// We want only uncatchable exceptions here.
|
|
NS_ASSERTION(!JS_IsExceptionPending(aCx),
|
|
"Should not have an exception set here!");
|
|
return false;
|
|
}
|
|
|
|
// Make sure the periodic timer gets turned back on here.
|
|
SetGCTimerMode(PeriodicTimer);
|
|
|
|
return true;
|
|
}
|
|
|
|
nsresult
|
|
WorkerPrivate::IsOnCurrentThread(bool* aIsOnCurrentThread)
|
|
{
|
|
// May be called on any thread!
|
|
|
|
MOZ_ASSERT(aIsOnCurrentThread);
|
|
MOZ_ASSERT(mPRThread);
|
|
|
|
*aIsOnCurrentThread = PR_GetCurrentThread() == mPRThread;
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::ScheduleDeletion(WorkerRanOrNot aRanOrNot)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
MOZ_ASSERT(mChildWorkers.IsEmpty());
|
|
MOZ_ASSERT(mSyncLoopStack.IsEmpty());
|
|
MOZ_ASSERT(!mPendingEventQueueClearing);
|
|
|
|
ClearMainEventQueue(aRanOrNot);
|
|
#ifdef DEBUG
|
|
if (WorkerRan == aRanOrNot) {
|
|
nsIThread* currentThread = NS_GetCurrentThread();
|
|
MOZ_ASSERT(currentThread);
|
|
MOZ_ASSERT(!NS_HasPendingEvents(currentThread));
|
|
}
|
|
#endif
|
|
|
|
if (WorkerPrivate* parent = GetParent()) {
|
|
RefPtr<WorkerFinishedRunnable> runnable =
|
|
new WorkerFinishedRunnable(parent, this);
|
|
if (!runnable->Dispatch()) {
|
|
NS_WARNING("Failed to dispatch runnable!");
|
|
}
|
|
}
|
|
else {
|
|
RefPtr<TopLevelWorkerFinishedRunnable> runnable =
|
|
new TopLevelWorkerFinishedRunnable(this);
|
|
if (NS_FAILED(NS_DispatchToMainThread(runnable))) {
|
|
NS_WARNING("Failed to dispatch runnable!");
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::CollectRuntimeStats(JS::RuntimeStats* aRtStats,
|
|
bool aAnonymize)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
NS_ASSERTION(aRtStats, "Null RuntimeStats!");
|
|
NS_ASSERTION(mJSContext, "This must never be null!");
|
|
|
|
return JS::CollectRuntimeStats(mJSContext, aRtStats, nullptr, aAnonymize);
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::EnableMemoryReporter()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
MOZ_ASSERT(!mMemoryReporter);
|
|
|
|
// No need to lock here since the main thread can't race until we've
|
|
// successfully registered the reporter.
|
|
mMemoryReporter = new MemoryReporter(this);
|
|
|
|
if (NS_FAILED(RegisterWeakAsyncMemoryReporter(mMemoryReporter))) {
|
|
NS_WARNING("Failed to register memory reporter!");
|
|
// No need to lock here since a failed registration means our memory
|
|
// reporter can't start running. Just clean up.
|
|
mMemoryReporter = nullptr;
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::DisableMemoryReporter()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
RefPtr<MemoryReporter> memoryReporter;
|
|
{
|
|
// Mutex protectes MemoryReporter::mWorkerPrivate which is cleared by
|
|
// MemoryReporter::Disable() below.
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
// There is nothing to do here if the memory reporter was never successfully
|
|
// registered.
|
|
if (!mMemoryReporter) {
|
|
return;
|
|
}
|
|
|
|
// We don't need this set any longer. Swap it out so that we can unregister
|
|
// below.
|
|
mMemoryReporter.swap(memoryReporter);
|
|
|
|
// Next disable the memory reporter so that the main thread stops trying to
|
|
// signal us.
|
|
memoryReporter->Disable();
|
|
}
|
|
|
|
// Finally unregister the memory reporter.
|
|
if (NS_FAILED(UnregisterWeakMemoryReporter(memoryReporter))) {
|
|
NS_WARNING("Failed to unregister memory reporter!");
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::WaitForWorkerEvents(PRIntervalTime aInterval)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
mMutex.AssertCurrentThreadOwns();
|
|
|
|
// Wait for a worker event.
|
|
mCondVar.Wait(aInterval);
|
|
}
|
|
|
|
WorkerPrivate::ProcessAllControlRunnablesResult
|
|
WorkerPrivate::ProcessAllControlRunnablesLocked()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
mMutex.AssertCurrentThreadOwns();
|
|
|
|
auto result = ProcessAllControlRunnablesResult::Nothing;
|
|
|
|
for (;;) {
|
|
WorkerControlRunnable* event;
|
|
if (!mControlQueue.Pop(event)) {
|
|
break;
|
|
}
|
|
|
|
MutexAutoUnlock unlock(mMutex);
|
|
|
|
MOZ_ASSERT(event);
|
|
if (NS_FAILED(static_cast<nsIRunnable*>(event)->Run())) {
|
|
result = ProcessAllControlRunnablesResult::Abort;
|
|
}
|
|
|
|
if (result == ProcessAllControlRunnablesResult::Nothing) {
|
|
// We ran at least one thing.
|
|
result = ProcessAllControlRunnablesResult::MayContinue;
|
|
}
|
|
event->Release();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::ClearMainEventQueue(WorkerRanOrNot aRanOrNot)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
MOZ_ASSERT(mSyncLoopStack.IsEmpty());
|
|
MOZ_ASSERT(!mCancelAllPendingRunnables);
|
|
mCancelAllPendingRunnables = true;
|
|
|
|
if (WorkerNeverRan == aRanOrNot) {
|
|
for (uint32_t count = mPreStartRunnables.Length(), index = 0;
|
|
index < count;
|
|
index++) {
|
|
RefPtr<WorkerRunnable> runnable = mPreStartRunnables[index].forget();
|
|
static_cast<nsIRunnable*>(runnable.get())->Run();
|
|
}
|
|
} else {
|
|
nsIThread* currentThread = NS_GetCurrentThread();
|
|
MOZ_ASSERT(currentThread);
|
|
|
|
NS_ProcessPendingEvents(currentThread);
|
|
}
|
|
|
|
MOZ_ASSERT(mCancelAllPendingRunnables);
|
|
mCancelAllPendingRunnables = false;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::ClearDebuggerEventQueue()
|
|
{
|
|
while (!mDebuggerQueue.IsEmpty()) {
|
|
WorkerRunnable* runnable;
|
|
mDebuggerQueue.Pop(runnable);
|
|
// It should be ok to simply release the runnable, without running it.
|
|
runnable->Release();
|
|
}
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::FreezeInternal()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
NS_ASSERTION(!mFrozen, "Already frozen!");
|
|
|
|
mFrozen = true;
|
|
|
|
for (uint32_t index = 0; index < mChildWorkers.Length(); index++) {
|
|
mChildWorkers[index]->Freeze(nullptr);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::ThawInternal()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
NS_ASSERTION(mFrozen, "Not yet frozen!");
|
|
|
|
for (uint32_t index = 0; index < mChildWorkers.Length(); index++) {
|
|
mChildWorkers[index]->Thaw(nullptr);
|
|
}
|
|
|
|
mFrozen = false;
|
|
return true;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::TraverseTimeouts(nsCycleCollectionTraversalCallback& cb)
|
|
{
|
|
for (uint32_t i = 0; i < mTimeouts.Length(); ++i) {
|
|
TimeoutInfo* tmp = mTimeouts[i];
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mHandler)
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::UnlinkTimeouts()
|
|
{
|
|
mTimeouts.Clear();
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::ModifyBusyCountFromWorker(bool aIncrease)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
// If we're in shutdown then the busy count is no longer being considered so
|
|
// just return now.
|
|
if (mStatus >= Killing) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
RefPtr<ModifyBusyCountRunnable> runnable =
|
|
new ModifyBusyCountRunnable(this, aIncrease);
|
|
return runnable->Dispatch();
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::AddChildWorker(ParentType* aChildWorker)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
#ifdef DEBUG
|
|
{
|
|
Status currentStatus;
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
currentStatus = mStatus;
|
|
}
|
|
|
|
MOZ_ASSERT(currentStatus == Running);
|
|
}
|
|
#endif
|
|
|
|
NS_ASSERTION(!mChildWorkers.Contains(aChildWorker),
|
|
"Already know about this one!");
|
|
mChildWorkers.AppendElement(aChildWorker);
|
|
|
|
return mChildWorkers.Length() == 1 ?
|
|
ModifyBusyCountFromWorker(true) :
|
|
true;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::RemoveChildWorker(ParentType* aChildWorker)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
NS_ASSERTION(mChildWorkers.Contains(aChildWorker),
|
|
"Didn't know about this one!");
|
|
mChildWorkers.RemoveElement(aChildWorker);
|
|
|
|
if (mChildWorkers.IsEmpty() && !ModifyBusyCountFromWorker(false)) {
|
|
NS_WARNING("Failed to modify busy count!");
|
|
}
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::AddHolder(WorkerHolder* aHolder, Status aFailStatus)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (mStatus >= aFailStatus) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(!mHolders.Contains(aHolder), "Already know about this one!");
|
|
|
|
if (mHolders.IsEmpty() && !ModifyBusyCountFromWorker(true)) {
|
|
return false;
|
|
}
|
|
|
|
mHolders.AppendElement(aHolder);
|
|
return true;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::RemoveHolder(WorkerHolder* aHolder)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
MOZ_ASSERT(mHolders.Contains(aHolder), "Didn't know about this one!");
|
|
mHolders.RemoveElement(aHolder);
|
|
|
|
if (mHolders.IsEmpty() && !ModifyBusyCountFromWorker(false)) {
|
|
NS_WARNING("Failed to modify busy count!");
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::NotifyHolders(JSContext* aCx, Status aStatus)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
MOZ_ASSERT(!JS_IsExceptionPending(aCx));
|
|
|
|
NS_ASSERTION(aStatus > Running, "Bad status!");
|
|
|
|
if (aStatus >= Closing) {
|
|
CancelAllTimeouts();
|
|
}
|
|
|
|
nsTObserverArray<WorkerHolder*>::ForwardIterator iter(mHolders);
|
|
while (iter.HasMore()) {
|
|
WorkerHolder* holder = iter.GetNext();
|
|
if (!holder->Notify(aStatus)) {
|
|
NS_WARNING("Failed to notify holder!");
|
|
}
|
|
MOZ_ASSERT(!JS_IsExceptionPending(aCx));
|
|
}
|
|
|
|
AutoTArray<ParentType*, 10> children;
|
|
children.AppendElements(mChildWorkers);
|
|
|
|
for (uint32_t index = 0; index < children.Length(); index++) {
|
|
if (!children[index]->Notify(aStatus)) {
|
|
NS_WARNING("Failed to notify child worker!");
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::CancelAllTimeouts()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
LOG(TimeoutsLog(), ("Worker %p CancelAllTimeouts.\n", this));
|
|
|
|
if (mTimerRunning) {
|
|
NS_ASSERTION(mTimer && mTimerRunnable, "Huh?!");
|
|
NS_ASSERTION(!mTimeouts.IsEmpty(), "Huh?!");
|
|
|
|
if (NS_FAILED(mTimer->Cancel())) {
|
|
NS_WARNING("Failed to cancel timer!");
|
|
}
|
|
|
|
for (uint32_t index = 0; index < mTimeouts.Length(); index++) {
|
|
mTimeouts[index]->mCanceled = true;
|
|
}
|
|
|
|
// If mRunningExpiredTimeouts, then the fact that they are all canceled now
|
|
// means that the currently executing RunExpiredTimeouts will deal with
|
|
// them. Otherwise, we need to clean them up ourselves.
|
|
if (!mRunningExpiredTimeouts) {
|
|
mTimeouts.Clear();
|
|
ModifyBusyCountFromWorker(false);
|
|
}
|
|
|
|
// Set mTimerRunning false even if mRunningExpiredTimeouts is true, so that
|
|
// if we get reentered under this same RunExpiredTimeouts call we don't
|
|
// assert above that !mTimeouts().IsEmpty(), because that's clearly false
|
|
// now.
|
|
mTimerRunning = false;
|
|
}
|
|
#ifdef DEBUG
|
|
else if (!mRunningExpiredTimeouts) {
|
|
NS_ASSERTION(mTimeouts.IsEmpty(), "Huh?!");
|
|
}
|
|
#endif
|
|
|
|
mTimer = nullptr;
|
|
mTimerRunnable = nullptr;
|
|
}
|
|
|
|
already_AddRefed<nsIEventTarget>
|
|
WorkerPrivate::CreateNewSyncLoop(Status aFailStatus)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (mStatus >= aFailStatus) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIThreadInternal> thread = do_QueryInterface(NS_GetCurrentThread());
|
|
MOZ_ASSERT(thread);
|
|
|
|
nsCOMPtr<nsIEventTarget> realEventTarget;
|
|
MOZ_ALWAYS_SUCCEEDS(thread->PushEventQueue(getter_AddRefs(realEventTarget)));
|
|
|
|
RefPtr<EventTarget> workerEventTarget =
|
|
new EventTarget(this, realEventTarget);
|
|
|
|
{
|
|
// Modifications must be protected by mMutex in DEBUG builds, see comment
|
|
// about mSyncLoopStack in WorkerPrivate.h.
|
|
#ifdef DEBUG
|
|
MutexAutoLock lock(mMutex);
|
|
#endif
|
|
|
|
mSyncLoopStack.AppendElement(new SyncLoopInfo(workerEventTarget));
|
|
}
|
|
|
|
return workerEventTarget.forget();
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::RunCurrentSyncLoop()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
JSContext* cx = GetJSContext();
|
|
MOZ_ASSERT(cx);
|
|
|
|
// This should not change between now and the time we finish running this sync
|
|
// loop.
|
|
uint32_t currentLoopIndex = mSyncLoopStack.Length() - 1;
|
|
|
|
SyncLoopInfo* loopInfo = mSyncLoopStack[currentLoopIndex];
|
|
|
|
MOZ_ASSERT(loopInfo);
|
|
MOZ_ASSERT(!loopInfo->mHasRun);
|
|
MOZ_ASSERT(!loopInfo->mCompleted);
|
|
|
|
#ifdef DEBUG
|
|
loopInfo->mHasRun = true;
|
|
#endif
|
|
|
|
while (!loopInfo->mCompleted) {
|
|
bool normalRunnablesPending = false;
|
|
|
|
// Don't block with the periodic GC timer running.
|
|
if (!NS_HasPendingEvents(mThread)) {
|
|
SetGCTimerMode(IdleTimer);
|
|
}
|
|
|
|
// Wait for something to do.
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
for (;;) {
|
|
while (mControlQueue.IsEmpty() &&
|
|
!normalRunnablesPending &&
|
|
!(normalRunnablesPending = NS_HasPendingEvents(mThread))) {
|
|
WaitForWorkerEvents();
|
|
}
|
|
|
|
auto result = ProcessAllControlRunnablesLocked();
|
|
if (result != ProcessAllControlRunnablesResult::Nothing) {
|
|
// XXXkhuey how should we handle Abort here? See Bug 1003730.
|
|
|
|
// The state of the world may have changed. Recheck it.
|
|
normalRunnablesPending = NS_HasPendingEvents(mThread);
|
|
|
|
// NB: If we processed a NotifyRunnable, we might have run
|
|
// non-control runnables, one of which may have shut down the
|
|
// sync loop.
|
|
if (loopInfo->mCompleted) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If we *didn't* run any control runnables, this should be unchanged.
|
|
MOZ_ASSERT(!loopInfo->mCompleted);
|
|
|
|
if (normalRunnablesPending) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (normalRunnablesPending) {
|
|
// Make sure the periodic timer is running before we continue.
|
|
SetGCTimerMode(PeriodicTimer);
|
|
|
|
MOZ_ALWAYS_TRUE(NS_ProcessNextEvent(mThread, false));
|
|
|
|
// Now *might* be a good time to GC. Let the JS engine make the decision.
|
|
if (JS::CurrentGlobalOrNull(cx)) {
|
|
JS_MaybeGC(cx);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Make sure that the stack didn't change underneath us.
|
|
MOZ_ASSERT(mSyncLoopStack[currentLoopIndex] == loopInfo);
|
|
|
|
return DestroySyncLoop(currentLoopIndex);
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::DestroySyncLoop(uint32_t aLoopIndex, nsIThreadInternal* aThread)
|
|
{
|
|
MOZ_ASSERT(!mSyncLoopStack.IsEmpty());
|
|
MOZ_ASSERT(mSyncLoopStack.Length() - 1 == aLoopIndex);
|
|
|
|
if (!aThread) {
|
|
aThread = mThread;
|
|
}
|
|
|
|
// We're about to delete the loop, stash its event target and result.
|
|
SyncLoopInfo* loopInfo = mSyncLoopStack[aLoopIndex];
|
|
nsIEventTarget* nestedEventTarget =
|
|
loopInfo->mEventTarget->GetWeakNestedEventTarget();
|
|
MOZ_ASSERT(nestedEventTarget);
|
|
|
|
bool result = loopInfo->mResult;
|
|
|
|
{
|
|
// Modifications must be protected by mMutex in DEBUG builds, see comment
|
|
// about mSyncLoopStack in WorkerPrivate.h.
|
|
#ifdef DEBUG
|
|
MutexAutoLock lock(mMutex);
|
|
#endif
|
|
|
|
// This will delete |loopInfo|!
|
|
mSyncLoopStack.RemoveElementAt(aLoopIndex);
|
|
}
|
|
|
|
MOZ_ALWAYS_SUCCEEDS(aThread->PopEventQueue(nestedEventTarget));
|
|
|
|
if (mSyncLoopStack.IsEmpty() && mPendingEventQueueClearing) {
|
|
mPendingEventQueueClearing = false;
|
|
ClearMainEventQueue(WorkerRan);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::StopSyncLoop(nsIEventTarget* aSyncLoopTarget, bool aResult)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
AssertValidSyncLoop(aSyncLoopTarget);
|
|
|
|
MOZ_ASSERT(!mSyncLoopStack.IsEmpty());
|
|
|
|
for (uint32_t index = mSyncLoopStack.Length(); index > 0; index--) {
|
|
nsAutoPtr<SyncLoopInfo>& loopInfo = mSyncLoopStack[index - 1];
|
|
MOZ_ASSERT(loopInfo);
|
|
MOZ_ASSERT(loopInfo->mEventTarget);
|
|
|
|
if (loopInfo->mEventTarget == aSyncLoopTarget) {
|
|
// Can't assert |loop->mHasRun| here because dispatch failures can cause
|
|
// us to bail out early.
|
|
MOZ_ASSERT(!loopInfo->mCompleted);
|
|
|
|
loopInfo->mResult = aResult;
|
|
loopInfo->mCompleted = true;
|
|
|
|
loopInfo->mEventTarget->Disable();
|
|
|
|
return;
|
|
}
|
|
|
|
MOZ_ASSERT(!SameCOMIdentity(loopInfo->mEventTarget, aSyncLoopTarget));
|
|
}
|
|
|
|
MOZ_CRASH("Unknown sync loop!");
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
void
|
|
WorkerPrivate::AssertValidSyncLoop(nsIEventTarget* aSyncLoopTarget)
|
|
{
|
|
MOZ_ASSERT(aSyncLoopTarget);
|
|
|
|
EventTarget* workerTarget;
|
|
nsresult rv =
|
|
aSyncLoopTarget->QueryInterface(kDEBUGWorkerEventTargetIID,
|
|
reinterpret_cast<void**>(&workerTarget));
|
|
MOZ_ASSERT(NS_SUCCEEDED(rv));
|
|
MOZ_ASSERT(workerTarget);
|
|
|
|
bool valid = false;
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
for (uint32_t index = 0; index < mSyncLoopStack.Length(); index++) {
|
|
nsAutoPtr<SyncLoopInfo>& loopInfo = mSyncLoopStack[index];
|
|
MOZ_ASSERT(loopInfo);
|
|
MOZ_ASSERT(loopInfo->mEventTarget);
|
|
|
|
if (loopInfo->mEventTarget == aSyncLoopTarget) {
|
|
valid = true;
|
|
break;
|
|
}
|
|
|
|
MOZ_ASSERT(!SameCOMIdentity(loopInfo->mEventTarget, aSyncLoopTarget));
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(valid);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
WorkerPrivate::PostMessageToParentInternal(
|
|
JSContext* aCx,
|
|
JS::Handle<JS::Value> aMessage,
|
|
const Optional<Sequence<JS::Value>>& aTransferable,
|
|
ErrorResult& aRv)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
JS::Rooted<JS::Value> transferable(aCx, JS::UndefinedValue());
|
|
if (aTransferable.WasPassed()) {
|
|
const Sequence<JS::Value>& realTransferable = aTransferable.Value();
|
|
|
|
// The input sequence only comes from the generated bindings code, which
|
|
// ensures it is rooted.
|
|
JS::HandleValueArray elements =
|
|
JS::HandleValueArray::fromMarkedLocation(realTransferable.Length(),
|
|
realTransferable.Elements());
|
|
|
|
JSObject* array = JS_NewArrayObject(aCx, elements);
|
|
if (!array) {
|
|
aRv = NS_ERROR_OUT_OF_MEMORY;
|
|
return;
|
|
}
|
|
transferable.setObject(*array);
|
|
}
|
|
|
|
RefPtr<MessageEventRunnable> runnable =
|
|
new MessageEventRunnable(this,
|
|
WorkerRunnable::ParentThreadUnchangedBusyCount);
|
|
|
|
UniquePtr<AbstractTimelineMarker> start;
|
|
UniquePtr<AbstractTimelineMarker> end;
|
|
RefPtr<TimelineConsumers> timelines = TimelineConsumers::Get();
|
|
bool isTimelineRecording = timelines && !timelines->IsEmpty();
|
|
|
|
if (isTimelineRecording) {
|
|
start = MakeUnique<WorkerTimelineMarker>(NS_IsMainThread()
|
|
? ProfileTimelineWorkerOperationType::SerializeDataOnMainThread
|
|
: ProfileTimelineWorkerOperationType::SerializeDataOffMainThread,
|
|
MarkerTracingType::START);
|
|
}
|
|
|
|
runnable->Write(aCx, aMessage, transferable, JS::CloneDataPolicy(), aRv);
|
|
|
|
if (isTimelineRecording) {
|
|
end = MakeUnique<WorkerTimelineMarker>(NS_IsMainThread()
|
|
? ProfileTimelineWorkerOperationType::SerializeDataOnMainThread
|
|
: ProfileTimelineWorkerOperationType::SerializeDataOffMainThread,
|
|
MarkerTracingType::END);
|
|
timelines->AddMarkerForAllObservedDocShells(start);
|
|
timelines->AddMarkerForAllObservedDocShells(end);
|
|
}
|
|
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return;
|
|
}
|
|
|
|
if (!runnable->Dispatch()) {
|
|
aRv = NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::EnterDebuggerEventLoop()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
JSContext* cx = GetJSContext();
|
|
MOZ_ASSERT(cx);
|
|
|
|
uint32_t currentEventLoopLevel = ++mDebuggerEventLoopLevel;
|
|
|
|
while (currentEventLoopLevel <= mDebuggerEventLoopLevel) {
|
|
bool debuggerRunnablesPending = false;
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
debuggerRunnablesPending = !mDebuggerQueue.IsEmpty();
|
|
}
|
|
|
|
// Don't block with the periodic GC timer running.
|
|
if (!debuggerRunnablesPending) {
|
|
SetGCTimerMode(IdleTimer);
|
|
}
|
|
|
|
// Wait for something to do
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
while (mControlQueue.IsEmpty() &&
|
|
!(debuggerRunnablesPending = !mDebuggerQueue.IsEmpty())) {
|
|
WaitForWorkerEvents();
|
|
}
|
|
|
|
ProcessAllControlRunnablesLocked();
|
|
|
|
// XXXkhuey should we abort JS on the stack here if we got Abort above?
|
|
}
|
|
|
|
if (debuggerRunnablesPending) {
|
|
// Start the periodic GC timer if it is not already running.
|
|
SetGCTimerMode(PeriodicTimer);
|
|
|
|
WorkerRunnable* runnable;
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
mDebuggerQueue.Pop(runnable);
|
|
}
|
|
|
|
MOZ_ASSERT(runnable);
|
|
static_cast<nsIRunnable*>(runnable)->Run();
|
|
runnable->Release();
|
|
|
|
// Flush the promise queue.
|
|
Promise::PerformWorkerDebuggerMicroTaskCheckpoint();
|
|
|
|
// Now *might* be a good time to GC. Let the JS engine make the decision.
|
|
if (JS::CurrentGlobalOrNull(cx)) {
|
|
JS_MaybeGC(cx);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::LeaveDebuggerEventLoop()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (mDebuggerEventLoopLevel > 0) {
|
|
--mDebuggerEventLoopLevel;
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::PostMessageToDebugger(const nsAString& aMessage)
|
|
{
|
|
mDebugger->PostMessageToDebugger(aMessage);
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::SetDebuggerImmediate(dom::Function& aHandler, ErrorResult& aRv)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
RefPtr<DebuggerImmediateRunnable> runnable =
|
|
new DebuggerImmediateRunnable(this, aHandler);
|
|
if (!runnable->Dispatch()) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::ReportErrorToDebugger(const nsAString& aFilename,
|
|
uint32_t aLineno,
|
|
const nsAString& aMessage)
|
|
{
|
|
mDebugger->ReportErrorToDebugger(aFilename, aLineno, aMessage);
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::NotifyInternal(JSContext* aCx, Status aStatus)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
NS_ASSERTION(aStatus > Running && aStatus < Dead, "Bad status!");
|
|
|
|
RefPtr<EventTarget> eventTarget;
|
|
|
|
// Save the old status and set the new status.
|
|
Status previousStatus;
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (mStatus >= aStatus) {
|
|
MOZ_ASSERT(!mEventTarget);
|
|
return true;
|
|
}
|
|
|
|
previousStatus = mStatus;
|
|
mStatus = aStatus;
|
|
|
|
mEventTarget.swap(eventTarget);
|
|
}
|
|
|
|
// Now that mStatus > Running, no-one can create a new WorkerEventTarget or
|
|
// WorkerCrossThreadDispatcher if we don't already have one.
|
|
if (eventTarget) {
|
|
// Since we'll no longer process events, make sure we no longer allow anyone
|
|
// to post them. We have to do this without mMutex held, since our mutex
|
|
// must be acquired *after* the WorkerEventTarget's mutex when they're both
|
|
// held.
|
|
eventTarget->Disable();
|
|
eventTarget = nullptr;
|
|
}
|
|
|
|
if (mCrossThreadDispatcher) {
|
|
// Since we'll no longer process events, make sure we no longer allow
|
|
// anyone to post them. We have to do this without mMutex held, since our
|
|
// mutex must be acquired *after* mCrossThreadDispatcher's mutex when
|
|
// they're both held.
|
|
mCrossThreadDispatcher->Forget();
|
|
mCrossThreadDispatcher = nullptr;
|
|
}
|
|
|
|
MOZ_ASSERT(previousStatus != Pending);
|
|
|
|
// Let all our holders know the new status.
|
|
NotifyHolders(aCx, aStatus);
|
|
MOZ_ASSERT(!JS_IsExceptionPending(aCx));
|
|
|
|
// If this is the first time our status has changed then we need to clear the
|
|
// main event queue.
|
|
if (previousStatus == Running) {
|
|
// NB: If we're in a sync loop, we can't clear the queue immediately,
|
|
// because this is the wrong queue. So we have to defer it until later.
|
|
if (!mSyncLoopStack.IsEmpty()) {
|
|
mPendingEventQueueClearing = true;
|
|
} else {
|
|
ClearMainEventQueue(WorkerRan);
|
|
}
|
|
}
|
|
|
|
// If the worker script never ran, or failed to compile, we don't need to do
|
|
// anything else.
|
|
if (!GlobalScope()) {
|
|
return true;
|
|
}
|
|
|
|
if (aStatus == Closing) {
|
|
// Notify parent to stop sending us messages and balance our busy count.
|
|
RefPtr<CloseRunnable> runnable = new CloseRunnable(this);
|
|
if (!runnable->Dispatch()) {
|
|
return false;
|
|
}
|
|
|
|
// Don't abort the script.
|
|
return true;
|
|
}
|
|
|
|
MOZ_ASSERT(aStatus == Terminating ||
|
|
aStatus == Canceling ||
|
|
aStatus == Killing);
|
|
|
|
// Always abort the script.
|
|
return false;
|
|
}
|
|
|
|
void
|
|
WorkerErrorBase::AssignErrorBase(JSErrorBase* aReport)
|
|
{
|
|
mFilename = NS_ConvertUTF8toUTF16(aReport->filename);
|
|
mLineNumber = aReport->lineno;
|
|
mColumnNumber = aReport->column;
|
|
mErrorNumber = aReport->errorNumber;
|
|
}
|
|
|
|
void
|
|
WorkerErrorNote::AssignErrorNote(JSErrorNotes::Note* aNote)
|
|
{
|
|
WorkerErrorBase::AssignErrorBase(aNote);
|
|
xpc::ErrorNote::ErrorNoteToMessageString(aNote, mMessage);
|
|
}
|
|
|
|
void
|
|
WorkerErrorReport::AssignErrorReport(JSErrorReport* aReport)
|
|
{
|
|
WorkerErrorBase::AssignErrorBase(aReport);
|
|
xpc::ErrorReport::ErrorReportToMessageString(aReport, mMessage);
|
|
|
|
mLine.Assign(aReport->linebuf(), aReport->linebufLength());
|
|
mFlags = aReport->flags;
|
|
MOZ_ASSERT(aReport->exnType >= JSEXN_FIRST && aReport->exnType < JSEXN_LIMIT);
|
|
mExnType = JSExnType(aReport->exnType);
|
|
mMutedError = aReport->isMuted;
|
|
|
|
if (aReport->notes) {
|
|
if (!mNotes.SetLength(aReport->notes->length(), fallible)) {
|
|
return;
|
|
}
|
|
|
|
size_t i = 0;
|
|
for (auto&& note : *aReport->notes) {
|
|
mNotes.ElementAt(i).AssignErrorNote(note.get());
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::ReportError(JSContext* aCx, JS::ConstUTF8CharsZ aToStringResult,
|
|
JSErrorReport* aReport)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
if (!MayContinueRunning() || mErrorHandlerRecursionCount == 2) {
|
|
return;
|
|
}
|
|
|
|
NS_ASSERTION(mErrorHandlerRecursionCount == 0 ||
|
|
mErrorHandlerRecursionCount == 1,
|
|
"Bad recursion logic!");
|
|
|
|
JS::Rooted<JS::Value> exn(aCx);
|
|
if (!JS_GetPendingException(aCx, &exn)) {
|
|
// Probably shouldn't actually happen? But let's go ahead and just use null
|
|
// for lack of anything better.
|
|
exn.setNull();
|
|
}
|
|
JS_ClearPendingException(aCx);
|
|
|
|
WorkerErrorReport report;
|
|
if (aReport) {
|
|
report.AssignErrorReport(aReport);
|
|
}
|
|
else {
|
|
report.mFlags = nsIScriptError::errorFlag | nsIScriptError::exceptionFlag;
|
|
}
|
|
|
|
if (report.mMessage.IsEmpty() && aToStringResult) {
|
|
nsDependentCString toStringResult(aToStringResult.c_str());
|
|
if (!AppendUTF8toUTF16(toStringResult, report.mMessage, mozilla::fallible)) {
|
|
// Try again, with only a 1 KB string. Do this infallibly this time.
|
|
// If the user doesn't have 1 KB to spare we're done anyways.
|
|
uint32_t index = std::min(uint32_t(1024), toStringResult.Length());
|
|
|
|
// Drop the last code point that may be cropped.
|
|
index = RewindToPriorUTF8Codepoint(toStringResult.BeginReading(), index);
|
|
|
|
nsDependentCString truncatedToStringResult(aToStringResult.c_str(),
|
|
index);
|
|
AppendUTF8toUTF16(truncatedToStringResult, report.mMessage);
|
|
}
|
|
}
|
|
|
|
mErrorHandlerRecursionCount++;
|
|
|
|
// Don't want to run the scope's error handler if this is a recursive error or
|
|
// if we ran out of memory.
|
|
bool fireAtScope = mErrorHandlerRecursionCount == 1 &&
|
|
report.mErrorNumber != JSMSG_OUT_OF_MEMORY &&
|
|
JS::CurrentGlobalOrNull(aCx);
|
|
|
|
ReportErrorRunnable::ReportError(aCx, this, fireAtScope, nullptr, report, 0,
|
|
exn);
|
|
|
|
mErrorHandlerRecursionCount--;
|
|
}
|
|
|
|
// static
|
|
void
|
|
WorkerPrivate::ReportErrorToConsole(const char* aMessage)
|
|
{
|
|
WorkerPrivate* wp = nullptr;
|
|
if (!NS_IsMainThread()) {
|
|
wp = GetCurrentThreadWorkerPrivate();
|
|
}
|
|
|
|
ReportErrorToConsoleRunnable::Report(wp, aMessage);
|
|
}
|
|
|
|
int32_t
|
|
WorkerPrivate::SetTimeout(JSContext* aCx,
|
|
nsIScriptTimeoutHandler* aHandler,
|
|
int32_t aTimeout, bool aIsInterval,
|
|
ErrorResult& aRv)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
MOZ_ASSERT(aHandler);
|
|
|
|
const int32_t timerId = mNextTimeoutId++;
|
|
|
|
Status currentStatus;
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
currentStatus = mStatus;
|
|
}
|
|
|
|
// If the worker is trying to call setTimeout/setInterval and the parent
|
|
// thread has initiated the close process then just silently fail.
|
|
if (currentStatus >= Closing) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return 0;
|
|
}
|
|
|
|
nsAutoPtr<TimeoutInfo> newInfo(new TimeoutInfo());
|
|
newInfo->mIsInterval = aIsInterval;
|
|
newInfo->mId = timerId;
|
|
|
|
if (MOZ_UNLIKELY(timerId == INT32_MAX)) {
|
|
NS_WARNING("Timeout ids overflowed!");
|
|
mNextTimeoutId = 1;
|
|
}
|
|
|
|
newInfo->mHandler = aHandler;
|
|
|
|
// See if any of the optional arguments were passed.
|
|
aTimeout = std::max(0, aTimeout);
|
|
newInfo->mInterval = TimeDuration::FromMilliseconds(aTimeout);
|
|
|
|
newInfo->mTargetTime = TimeStamp::Now() + newInfo->mInterval;
|
|
|
|
nsAutoPtr<TimeoutInfo>* insertedInfo =
|
|
mTimeouts.InsertElementSorted(newInfo.forget(), GetAutoPtrComparator(mTimeouts));
|
|
|
|
LOG(TimeoutsLog(), ("Worker %p has new timeout: delay=%d interval=%s\n",
|
|
this, aTimeout, aIsInterval ? "yes" : "no"));
|
|
|
|
// If the timeout we just made is set to fire next then we need to update the
|
|
// timer, unless we're currently running timeouts.
|
|
if (insertedInfo == mTimeouts.Elements() && !mRunningExpiredTimeouts) {
|
|
nsresult rv;
|
|
|
|
if (!mTimer) {
|
|
mTimer = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
|
|
if (NS_FAILED(rv)) {
|
|
aRv.Throw(rv);
|
|
return 0;
|
|
}
|
|
|
|
mTimerRunnable = new TimerRunnable(this);
|
|
}
|
|
|
|
if (!mTimerRunning) {
|
|
if (!ModifyBusyCountFromWorker(true)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return 0;
|
|
}
|
|
mTimerRunning = true;
|
|
}
|
|
|
|
if (!RescheduleTimeoutTimer(aCx)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return timerId;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::ClearTimeout(int32_t aId)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
if (!mTimeouts.IsEmpty()) {
|
|
NS_ASSERTION(mTimerRunning, "Huh?!");
|
|
|
|
for (uint32_t index = 0; index < mTimeouts.Length(); index++) {
|
|
nsAutoPtr<TimeoutInfo>& info = mTimeouts[index];
|
|
if (info->mId == aId) {
|
|
info->mCanceled = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::RunExpiredTimeouts(JSContext* aCx)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
// We may be called recursively (e.g. close() inside a timeout) or we could
|
|
// have been canceled while this event was pending, bail out if there is
|
|
// nothing to do.
|
|
if (mRunningExpiredTimeouts || !mTimerRunning) {
|
|
return true;
|
|
}
|
|
|
|
NS_ASSERTION(mTimer && mTimerRunnable, "Must have a timer!");
|
|
NS_ASSERTION(!mTimeouts.IsEmpty(), "Should have some work to do!");
|
|
|
|
bool retval = true;
|
|
|
|
AutoPtrComparator<TimeoutInfo> comparator = GetAutoPtrComparator(mTimeouts);
|
|
JS::Rooted<JSObject*> global(aCx, JS::CurrentGlobalOrNull(aCx));
|
|
|
|
// We want to make sure to run *something*, even if the timer fired a little
|
|
// early. Fudge the value of now to at least include the first timeout.
|
|
const TimeStamp actual_now = TimeStamp::Now();
|
|
const TimeStamp now = std::max(actual_now, mTimeouts[0]->mTargetTime);
|
|
|
|
if (now != actual_now) {
|
|
LOG(TimeoutsLog(), ("Worker %p fudged timeout by %f ms.\n", this,
|
|
(now - actual_now).ToMilliseconds()));
|
|
}
|
|
|
|
AutoTArray<TimeoutInfo*, 10> expiredTimeouts;
|
|
for (uint32_t index = 0; index < mTimeouts.Length(); index++) {
|
|
nsAutoPtr<TimeoutInfo>& info = mTimeouts[index];
|
|
if (info->mTargetTime > now) {
|
|
break;
|
|
}
|
|
expiredTimeouts.AppendElement(info);
|
|
}
|
|
|
|
// Guard against recursion.
|
|
mRunningExpiredTimeouts = true;
|
|
|
|
// Run expired timeouts.
|
|
for (uint32_t index = 0; index < expiredTimeouts.Length(); index++) {
|
|
TimeoutInfo*& info = expiredTimeouts[index];
|
|
|
|
if (info->mCanceled) {
|
|
continue;
|
|
}
|
|
|
|
LOG(TimeoutsLog(), ("Worker %p executing timeout with original delay %f ms.\n",
|
|
this, info->mInterval.ToMilliseconds()));
|
|
|
|
// Always check JS_IsExceptionPending if something fails, and if
|
|
// JS_IsExceptionPending returns false (i.e. uncatchable exception) then
|
|
// break out of the loop.
|
|
const char *reason;
|
|
if (info->mIsInterval) {
|
|
reason = "setInterval handler";
|
|
} else {
|
|
reason = "setTimeout handler";
|
|
}
|
|
|
|
RefPtr<Function> callback = info->mHandler->GetCallback();
|
|
if (!callback) {
|
|
// scope for the AutoEntryScript, so it comes off the stack before we do
|
|
// Promise::PerformMicroTaskCheckpoint.
|
|
AutoEntryScript aes(global, reason, false);
|
|
|
|
// Evaluate the timeout expression.
|
|
const nsAString& script = info->mHandler->GetHandlerText();
|
|
|
|
const char* filename = nullptr;
|
|
uint32_t lineNo = 0, dummyColumn = 0;
|
|
info->mHandler->GetLocation(&filename, &lineNo, &dummyColumn);
|
|
|
|
JS::CompileOptions options(aes.cx());
|
|
options.setFileAndLine(filename, lineNo).setNoScriptRval(true);
|
|
|
|
JS::Rooted<JS::Value> unused(aes.cx());
|
|
|
|
if (!JS::Evaluate(aes.cx(), options, script.BeginReading(),
|
|
script.Length(), &unused) &&
|
|
!JS_IsExceptionPending(aCx)) {
|
|
retval = false;
|
|
break;
|
|
}
|
|
} else {
|
|
ErrorResult rv;
|
|
JS::Rooted<JS::Value> ignoredVal(aCx);
|
|
callback->Call(GlobalScope(), info->mHandler->GetArgs(), &ignoredVal, rv,
|
|
reason);
|
|
if (rv.IsUncatchableException()) {
|
|
rv.SuppressException();
|
|
retval = false;
|
|
break;
|
|
}
|
|
|
|
rv.SuppressException();
|
|
}
|
|
|
|
// Since we might be processing more timeouts, go ahead and flush
|
|
// the promise queue now before we do that.
|
|
Promise::PerformWorkerMicroTaskCheckpoint();
|
|
|
|
NS_ASSERTION(mRunningExpiredTimeouts, "Someone changed this!");
|
|
}
|
|
|
|
// No longer possible to be called recursively.
|
|
mRunningExpiredTimeouts = false;
|
|
|
|
// Now remove canceled and expired timeouts from the main list.
|
|
// NB: The timeouts present in expiredTimeouts must have the same order
|
|
// with respect to each other in mTimeouts. That is, mTimeouts is just
|
|
// expiredTimeouts with extra elements inserted. There may be unexpired
|
|
// timeouts that have been inserted between the expired timeouts if the
|
|
// timeout event handler called setTimeout/setInterval.
|
|
for (uint32_t index = 0, expiredTimeoutIndex = 0,
|
|
expiredTimeoutLength = expiredTimeouts.Length();
|
|
index < mTimeouts.Length(); ) {
|
|
nsAutoPtr<TimeoutInfo>& info = mTimeouts[index];
|
|
if ((expiredTimeoutIndex < expiredTimeoutLength &&
|
|
info == expiredTimeouts[expiredTimeoutIndex] &&
|
|
++expiredTimeoutIndex) ||
|
|
info->mCanceled) {
|
|
if (info->mIsInterval && !info->mCanceled) {
|
|
// Reschedule intervals.
|
|
info->mTargetTime = info->mTargetTime + info->mInterval;
|
|
// Don't resort the list here, we'll do that at the end.
|
|
++index;
|
|
}
|
|
else {
|
|
mTimeouts.RemoveElement(info);
|
|
}
|
|
}
|
|
else {
|
|
// If info did not match the current entry in expiredTimeouts, it
|
|
// shouldn't be there at all.
|
|
NS_ASSERTION(!expiredTimeouts.Contains(info),
|
|
"Our timeouts are out of order!");
|
|
++index;
|
|
}
|
|
}
|
|
|
|
mTimeouts.Sort(comparator);
|
|
|
|
// Either signal the parent that we're no longer using timeouts or reschedule
|
|
// the timer.
|
|
if (mTimeouts.IsEmpty()) {
|
|
if (!ModifyBusyCountFromWorker(false)) {
|
|
retval = false;
|
|
}
|
|
mTimerRunning = false;
|
|
}
|
|
else if (retval && !RescheduleTimeoutTimer(aCx)) {
|
|
retval = false;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::RescheduleTimeoutTimer(JSContext* aCx)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
MOZ_ASSERT(!mRunningExpiredTimeouts);
|
|
NS_ASSERTION(!mTimeouts.IsEmpty(), "Should have some timeouts!");
|
|
NS_ASSERTION(mTimer && mTimerRunnable, "Should have a timer!");
|
|
|
|
// NB: This is important! The timer may have already fired, e.g. if a timeout
|
|
// callback itself calls setTimeout for a short duration and then takes longer
|
|
// than that to finish executing. If that has happened, it's very important
|
|
// that we don't execute the event that is now pending in our event queue, or
|
|
// our code in RunExpiredTimeouts to "fudge" the timeout value will unleash an
|
|
// early timeout when we execute the event we're about to queue.
|
|
mTimer->Cancel();
|
|
|
|
double delta =
|
|
(mTimeouts[0]->mTargetTime - TimeStamp::Now()).ToMilliseconds();
|
|
uint32_t delay = delta > 0 ? std::min(delta, double(UINT32_MAX)) : 0;
|
|
|
|
LOG(TimeoutsLog(), ("Worker %p scheduled timer for %d ms, %d pending timeouts\n",
|
|
this, delay, mTimeouts.Length()));
|
|
|
|
nsresult rv = mTimer->InitWithCallback(mTimerRunnable, delay, nsITimer::TYPE_ONE_SHOT);
|
|
if (NS_FAILED(rv)) {
|
|
JS_ReportErrorASCII(aCx, "Failed to start timer!");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::UpdateContextOptionsInternal(
|
|
JSContext* aCx,
|
|
const JS::ContextOptions& aContextOptions)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
JS::ContextOptionsRef(aCx) = aContextOptions;
|
|
|
|
for (uint32_t index = 0; index < mChildWorkers.Length(); index++) {
|
|
mChildWorkers[index]->UpdateContextOptions(aContextOptions);
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::UpdateLanguagesInternal(const nsTArray<nsString>& aLanguages)
|
|
{
|
|
WorkerGlobalScope* globalScope = GlobalScope();
|
|
if (globalScope) {
|
|
RefPtr<WorkerNavigator> nav = globalScope->GetExistingNavigator();
|
|
if (nav) {
|
|
nav->SetLanguages(aLanguages);
|
|
}
|
|
}
|
|
|
|
for (uint32_t index = 0; index < mChildWorkers.Length(); index++) {
|
|
mChildWorkers[index]->UpdateLanguages(aLanguages);
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::UpdatePreferenceInternal(WorkerPreference aPref, bool aValue)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
MOZ_ASSERT(aPref >= 0 && aPref < WORKERPREF_COUNT);
|
|
|
|
mPreferences[aPref] = aValue;
|
|
|
|
for (uint32_t index = 0; index < mChildWorkers.Length(); index++) {
|
|
mChildWorkers[index]->UpdatePreference(aPref, aValue);
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::UpdateJSWorkerMemoryParameterInternal(JSContext* aCx,
|
|
JSGCParamKey aKey,
|
|
uint32_t aValue)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
// XXX aValue might be 0 here (telling us to unset a previous value for child
|
|
// workers). Calling JS_SetGCParameter with a value of 0 isn't actually
|
|
// supported though. We really need some way to revert to a default value
|
|
// here.
|
|
if (aValue) {
|
|
JS_SetGCParameter(aCx, aKey, aValue);
|
|
}
|
|
|
|
for (uint32_t index = 0; index < mChildWorkers.Length(); index++) {
|
|
mChildWorkers[index]->UpdateJSWorkerMemoryParameter(aKey, aValue);
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::GarbageCollectInternal(JSContext* aCx, bool aShrinking,
|
|
bool aCollectChildren)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
if (!GlobalScope()) {
|
|
// We haven't compiled anything yet. Just bail out.
|
|
return;
|
|
}
|
|
|
|
if (aShrinking || aCollectChildren) {
|
|
JS::PrepareForFullGC(aCx);
|
|
|
|
if (aShrinking && mSyncLoopStack.IsEmpty()) {
|
|
JS::GCForReason(aCx, GC_SHRINK, JS::gcreason::DOM_WORKER);
|
|
|
|
if (!aCollectChildren) {
|
|
LOG(WorkerLog(), ("Worker %p collected idle garbage\n", this));
|
|
}
|
|
}
|
|
else {
|
|
JS::GCForReason(aCx, GC_NORMAL, JS::gcreason::DOM_WORKER);
|
|
LOG(WorkerLog(), ("Worker %p collected garbage\n", this));
|
|
}
|
|
}
|
|
else {
|
|
JS_MaybeGC(aCx);
|
|
LOG(WorkerLog(), ("Worker %p collected periodic garbage\n", this));
|
|
}
|
|
|
|
if (aCollectChildren) {
|
|
for (uint32_t index = 0; index < mChildWorkers.Length(); index++) {
|
|
mChildWorkers[index]->GarbageCollect(aShrinking);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::CycleCollectInternal(bool aCollectChildren)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
nsCycleCollector_collect(nullptr);
|
|
|
|
if (aCollectChildren) {
|
|
for (uint32_t index = 0; index < mChildWorkers.Length(); index++) {
|
|
mChildWorkers[index]->CycleCollect(/* dummy = */ false);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::MemoryPressureInternal()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
RefPtr<Console> console = mScope ? mScope->GetConsoleIfExists() : nullptr;
|
|
if (console) {
|
|
console->ClearStorage();
|
|
}
|
|
|
|
console = mDebuggerScope ? mDebuggerScope->GetConsoleIfExists() : nullptr;
|
|
if (console) {
|
|
console->ClearStorage();
|
|
}
|
|
|
|
for (uint32_t index = 0; index < mChildWorkers.Length(); index++) {
|
|
mChildWorkers[index]->MemoryPressure(false);
|
|
}
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::SetThread(WorkerThread* aThread)
|
|
{
|
|
if (aThread) {
|
|
#ifdef DEBUG
|
|
{
|
|
bool isOnCurrentThread;
|
|
MOZ_ASSERT(NS_SUCCEEDED(aThread->IsOnCurrentThread(&isOnCurrentThread)));
|
|
MOZ_ASSERT(isOnCurrentThread);
|
|
}
|
|
#endif
|
|
|
|
MOZ_ASSERT(!mPRThread);
|
|
mPRThread = PRThreadFromThread(aThread);
|
|
MOZ_ASSERT(mPRThread);
|
|
}
|
|
else {
|
|
MOZ_ASSERT(mPRThread);
|
|
}
|
|
|
|
const WorkerThreadFriendKey friendKey;
|
|
|
|
RefPtr<WorkerThread> doomedThread;
|
|
|
|
{ // Scope so that |doomedThread| is released without holding the lock.
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (aThread) {
|
|
MOZ_ASSERT(!mThread);
|
|
MOZ_ASSERT(mStatus == Pending);
|
|
|
|
mThread = aThread;
|
|
mThread->SetWorker(friendKey, this);
|
|
|
|
if (!mPreStartRunnables.IsEmpty()) {
|
|
for (uint32_t index = 0; index < mPreStartRunnables.Length(); index++) {
|
|
MOZ_ALWAYS_SUCCEEDS(
|
|
mThread->DispatchAnyThread(friendKey, mPreStartRunnables[index].forget()));
|
|
}
|
|
mPreStartRunnables.Clear();
|
|
}
|
|
}
|
|
else {
|
|
MOZ_ASSERT(mThread);
|
|
|
|
mThread->SetWorker(friendKey, nullptr);
|
|
|
|
mThread.swap(doomedThread);
|
|
}
|
|
}
|
|
}
|
|
|
|
WorkerCrossThreadDispatcher*
|
|
WorkerPrivate::GetCrossThreadDispatcher()
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (!mCrossThreadDispatcher && mStatus <= Running) {
|
|
mCrossThreadDispatcher = new WorkerCrossThreadDispatcher(this);
|
|
}
|
|
|
|
return mCrossThreadDispatcher;
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::BeginCTypesCall()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
// Don't try to GC while we're blocked in a ctypes call.
|
|
SetGCTimerMode(NoTimer);
|
|
}
|
|
|
|
void
|
|
WorkerPrivate::EndCTypesCall()
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
// Make sure the periodic timer is running before we start running JS again.
|
|
SetGCTimerMode(PeriodicTimer);
|
|
}
|
|
|
|
bool
|
|
WorkerPrivate::ConnectMessagePort(JSContext* aCx,
|
|
MessagePortIdentifier& aIdentifier)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
WorkerGlobalScope* globalScope = GlobalScope();
|
|
|
|
JS::Rooted<JSObject*> jsGlobal(aCx, globalScope->GetWrapper());
|
|
MOZ_ASSERT(jsGlobal);
|
|
|
|
// This MessagePortIdentifier is used to create a new port, still connected
|
|
// with the other one, but in the worker thread.
|
|
ErrorResult rv;
|
|
RefPtr<MessagePort> port = MessagePort::Create(globalScope, aIdentifier, rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
rv.SuppressException();
|
|
return false;
|
|
}
|
|
|
|
GlobalObject globalObject(aCx, jsGlobal);
|
|
if (globalObject.Failed()) {
|
|
return false;
|
|
}
|
|
|
|
RootedDictionary<MessageEventInit> init(aCx);
|
|
init.mBubbles = false;
|
|
init.mCancelable = false;
|
|
init.mSource.SetValue().SetAsMessagePort() = port;
|
|
if (!init.mPorts.AppendElement(port.forget(), fallible)) {
|
|
return false;
|
|
}
|
|
|
|
RefPtr<MessageEvent> event =
|
|
MessageEvent::Constructor(globalObject,
|
|
NS_LITERAL_STRING("connect"), init, rv);
|
|
|
|
event->SetTrusted(true);
|
|
|
|
nsCOMPtr<nsIDOMEvent> domEvent = do_QueryObject(event);
|
|
|
|
nsEventStatus dummy = nsEventStatus_eIgnore;
|
|
globalScope->DispatchDOMEvent(nullptr, domEvent, nullptr, &dummy);
|
|
|
|
return true;
|
|
}
|
|
|
|
WorkerGlobalScope*
|
|
WorkerPrivate::GetOrCreateGlobalScope(JSContext* aCx)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
if (!mScope) {
|
|
RefPtr<WorkerGlobalScope> globalScope;
|
|
if (IsSharedWorker()) {
|
|
globalScope = new SharedWorkerGlobalScope(this, WorkerName());
|
|
} else if (IsServiceWorker()) {
|
|
globalScope = new ServiceWorkerGlobalScope(this, WorkerName());
|
|
} else {
|
|
globalScope = new DedicatedWorkerGlobalScope(this);
|
|
}
|
|
|
|
JS::Rooted<JSObject*> global(aCx);
|
|
NS_ENSURE_TRUE(globalScope->WrapGlobalObject(aCx, &global), nullptr);
|
|
|
|
JSAutoCompartment ac(aCx, global);
|
|
|
|
// RegisterBindings() can spin a nested event loop so we have to set mScope
|
|
// before calling it, and we have to make sure to unset mScope if it fails.
|
|
mScope = Move(globalScope);
|
|
|
|
if (!RegisterBindings(aCx, global)) {
|
|
mScope = nullptr;
|
|
return nullptr;
|
|
}
|
|
|
|
JS_FireOnNewGlobalObject(aCx, global);
|
|
}
|
|
|
|
return mScope;
|
|
}
|
|
|
|
WorkerDebuggerGlobalScope*
|
|
WorkerPrivate::CreateDebuggerGlobalScope(JSContext* aCx)
|
|
{
|
|
AssertIsOnWorkerThread();
|
|
|
|
MOZ_ASSERT(!mDebuggerScope);
|
|
|
|
RefPtr<WorkerDebuggerGlobalScope> globalScope =
|
|
new WorkerDebuggerGlobalScope(this);
|
|
|
|
JS::Rooted<JSObject*> global(aCx);
|
|
NS_ENSURE_TRUE(globalScope->WrapGlobalObject(aCx, &global), nullptr);
|
|
|
|
JSAutoCompartment ac(aCx, global);
|
|
|
|
// RegisterDebuggerBindings() can spin a nested event loop so we have to set
|
|
// mDebuggerScope before calling it, and we have to make sure to unset
|
|
// mDebuggerScope if it fails.
|
|
mDebuggerScope = Move(globalScope);
|
|
|
|
if (!RegisterDebuggerBindings(aCx, global)) {
|
|
mDebuggerScope = nullptr;
|
|
return nullptr;
|
|
}
|
|
|
|
JS_FireOnNewGlobalObject(aCx, global);
|
|
|
|
return mDebuggerScope;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
|
|
void
|
|
WorkerPrivate::AssertIsOnWorkerThread() const
|
|
{
|
|
// This is much more complicated than it needs to be but we can't use mThread
|
|
// because it must be protected by mMutex and sometimes this method is called
|
|
// when mMutex is already locked. This method should always work.
|
|
MOZ_ASSERT(mPRThread,
|
|
"AssertIsOnWorkerThread() called before a thread was assigned!");
|
|
|
|
nsCOMPtr<nsIThread> thread;
|
|
nsresult rv =
|
|
nsThreadManager::get().GetThreadFromPRThread(mPRThread,
|
|
getter_AddRefs(thread));
|
|
MOZ_ASSERT(NS_SUCCEEDED(rv));
|
|
MOZ_ASSERT(thread);
|
|
|
|
bool current;
|
|
rv = thread->IsOnCurrentThread(¤t);
|
|
MOZ_ASSERT(NS_SUCCEEDED(rv));
|
|
MOZ_ASSERT(current, "Wrong thread!");
|
|
}
|
|
|
|
#endif // DEBUG
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED0(ExternalRunnableWrapper, WorkerRunnable)
|
|
|
|
template <class Derived>
|
|
NS_IMPL_ADDREF(WorkerPrivateParent<Derived>::EventTarget)
|
|
|
|
template <class Derived>
|
|
NS_IMPL_RELEASE(WorkerPrivateParent<Derived>::EventTarget)
|
|
|
|
template <class Derived>
|
|
NS_INTERFACE_MAP_BEGIN(WorkerPrivateParent<Derived>::EventTarget)
|
|
NS_INTERFACE_MAP_ENTRY(nsIEventTarget)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupports)
|
|
#ifdef DEBUG
|
|
// kDEBUGWorkerEventTargetIID is special in that it does not AddRef its
|
|
// result.
|
|
if (aIID.Equals(kDEBUGWorkerEventTargetIID)) {
|
|
*aInstancePtr = this;
|
|
return NS_OK;
|
|
}
|
|
else
|
|
#endif
|
|
NS_INTERFACE_MAP_END
|
|
|
|
template <class Derived>
|
|
NS_IMETHODIMP
|
|
WorkerPrivateParent<Derived>::
|
|
EventTarget::DispatchFromScript(nsIRunnable* aRunnable, uint32_t aFlags)
|
|
{
|
|
nsCOMPtr<nsIRunnable> event(aRunnable);
|
|
return Dispatch(event.forget(), aFlags);
|
|
}
|
|
|
|
template <class Derived>
|
|
NS_IMETHODIMP
|
|
WorkerPrivateParent<Derived>::
|
|
EventTarget::Dispatch(already_AddRefed<nsIRunnable> aRunnable, uint32_t aFlags)
|
|
{
|
|
// May be called on any thread!
|
|
nsCOMPtr<nsIRunnable> event(aRunnable);
|
|
|
|
// Workers only support asynchronous dispatch for now.
|
|
if (NS_WARN_IF(aFlags != NS_DISPATCH_NORMAL)) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
RefPtr<WorkerRunnable> workerRunnable;
|
|
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (!mWorkerPrivate) {
|
|
NS_WARNING("A runnable was posted to a worker that is already shutting "
|
|
"down!");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
if (event) {
|
|
workerRunnable = mWorkerPrivate->MaybeWrapAsWorkerRunnable(event.forget());
|
|
}
|
|
|
|
nsresult rv =
|
|
mWorkerPrivate->DispatchPrivate(workerRunnable.forget(), mNestedEventTarget);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
template <class Derived>
|
|
NS_IMETHODIMP
|
|
WorkerPrivateParent<Derived>::
|
|
EventTarget::DelayedDispatch(already_AddRefed<nsIRunnable>, uint32_t)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
template <class Derived>
|
|
NS_IMETHODIMP
|
|
WorkerPrivateParent<Derived>::
|
|
EventTarget::IsOnCurrentThread(bool* aIsOnCurrentThread)
|
|
{
|
|
// May be called on any thread!
|
|
|
|
MOZ_ASSERT(aIsOnCurrentThread);
|
|
|
|
MutexAutoLock lock(mMutex);
|
|
|
|
if (!mWorkerPrivate) {
|
|
NS_WARNING("A worker's event target was used after the worker has !");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
nsresult rv = mWorkerPrivate->IsOnCurrentThread(aIsOnCurrentThread);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
BEGIN_WORKERS_NAMESPACE
|
|
|
|
WorkerCrossThreadDispatcher*
|
|
GetWorkerCrossThreadDispatcher(JSContext* aCx, const JS::Value& aWorker)
|
|
{
|
|
if (!aWorker.isObject()) {
|
|
return nullptr;
|
|
}
|
|
|
|
JS::Rooted<JSObject*> obj(aCx, &aWorker.toObject());
|
|
WorkerPrivate* w = nullptr;
|
|
UNWRAP_OBJECT(Worker, &obj, w);
|
|
MOZ_ASSERT(w);
|
|
return w->GetCrossThreadDispatcher();
|
|
}
|
|
|
|
// Force instantiation.
|
|
template class WorkerPrivateParent<WorkerPrivate>;
|
|
|
|
END_WORKERS_NAMESPACE
|