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59be033e1c
We aren't likely to try to make these changes any time soon, so cleaning out these unnecessary methods which just return `this` will simplify things. I was unable to find any calls to the `.eventTarget` getter in JS, which makes sense, as the nsIThread type is only really used in JS as a wrapper around the main thread in older code. Because of that, it has been removed as well. Differential Revision: https://phabricator.services.mozilla.com/D166605
123 lines
3.8 KiB
C++
123 lines
3.8 KiB
C++
/* 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 "nsHtml5Module.h"
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#include "mozilla/AlreadyAddRefed.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/Services.h"
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#include "mozilla/StaticPrefs_html5.h"
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#include "nsCOMPtr.h"
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#include "nsHtml5AttributeName.h"
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#include "nsHtml5ElementName.h"
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#include "nsHtml5HtmlAttributes.h"
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#include "nsHtml5NamedCharacters.h"
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#include "nsHtml5Portability.h"
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#include "nsHtml5StackNode.h"
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#include "nsHtml5Tokenizer.h"
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#include "nsHtml5TreeBuilder.h"
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#include "nsHtml5UTF16Buffer.h"
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#include "nsIObserverService.h"
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using namespace mozilla;
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// static
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nsIThread* nsHtml5Module::sStreamParserThread = nullptr;
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class nsHtml5ParserThreadTerminator final : public nsIObserver {
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public:
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NS_DECL_ISUPPORTS
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explicit nsHtml5ParserThreadTerminator(nsIThread* aThread)
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: mThread(aThread) {}
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NS_IMETHOD Observe(nsISupports*, const char* topic,
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const char16_t*) override {
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NS_ASSERTION(!strcmp(topic, "xpcom-shutdown-threads"), "Unexpected topic");
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mThread->Shutdown();
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mThread = nullptr;
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NS_IF_RELEASE(nsHtml5Module::sStreamParserThread);
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nsHtml5Module::sStreamParserThread = nullptr;
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return NS_OK;
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}
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private:
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~nsHtml5ParserThreadTerminator() = default;
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nsCOMPtr<nsIThread> mThread;
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};
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NS_IMPL_ISUPPORTS(nsHtml5ParserThreadTerminator, nsIObserver)
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// static
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void nsHtml5Module::InitializeStatics() {
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nsHtml5AttributeName::initializeStatics();
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nsHtml5ElementName::initializeStatics();
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nsHtml5HtmlAttributes::initializeStatics();
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nsHtml5NamedCharacters::initializeStatics();
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nsHtml5Portability::initializeStatics();
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nsHtml5StackNode::initializeStatics();
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nsHtml5Tokenizer::initializeStatics();
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nsHtml5TreeBuilder::initializeStatics();
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nsHtml5UTF16Buffer::initializeStatics();
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NS_NewNamedThread("HTML5 Parser", &sStreamParserThread);
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if (sStreamParserThread) {
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nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
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if (os) {
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os->AddObserver(new nsHtml5ParserThreadTerminator(sStreamParserThread),
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"xpcom-shutdown-threads", false);
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} else {
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MOZ_ASSERT(false,
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"How come we failed to create get the observer service?");
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}
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} else {
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MOZ_ASSERT(false, "How come we failed to create the parser thread?");
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}
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#ifdef DEBUG
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sNsHtml5ModuleInitialized = true;
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#endif
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}
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// static
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void nsHtml5Module::ReleaseStatics() {
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#ifdef DEBUG
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sNsHtml5ModuleInitialized = false;
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#endif
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nsHtml5AttributeName::releaseStatics();
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nsHtml5ElementName::releaseStatics();
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nsHtml5HtmlAttributes::releaseStatics();
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nsHtml5NamedCharacters::releaseStatics();
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nsHtml5Portability::releaseStatics();
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nsHtml5StackNode::releaseStatics();
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nsHtml5Tokenizer::releaseStatics();
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nsHtml5TreeBuilder::releaseStatics();
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nsHtml5UTF16Buffer::releaseStatics();
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NS_IF_RELEASE(sStreamParserThread);
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}
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// static
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already_AddRefed<nsHtml5Parser> nsHtml5Module::NewHtml5Parser() {
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MOZ_ASSERT(sNsHtml5ModuleInitialized, "nsHtml5Module not initialized.");
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RefPtr<nsHtml5Parser> rv = new nsHtml5Parser();
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return rv.forget();
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}
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// static
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already_AddRefed<nsISerialEventTarget>
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nsHtml5Module::GetStreamParserEventTarget() {
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MOZ_ASSERT(sNsHtml5ModuleInitialized, "nsHtml5Module not initialized.");
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if (sStreamParserThread) {
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nsCOMPtr<nsISerialEventTarget> target = sStreamParserThread;
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return target.forget();
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}
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nsCOMPtr<nsIThread> mainThread;
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NS_GetMainThread(getter_AddRefs(mainThread));
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MOZ_RELEASE_ASSERT(mainThread); // Unrecoverable situation
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nsCOMPtr<nsISerialEventTarget> target = mainThread;
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return target.forget();
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}
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#ifdef DEBUG
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bool nsHtml5Module::sNsHtml5ModuleInitialized = false;
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#endif
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