| /* |
| * Copyright (C) 2022 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "SharedWorkerContextManager.h" |
| |
| #include "Logging.h" |
| #include "SharedWorkerGlobalScope.h" |
| #include "SharedWorkerThread.h" |
| #include "SharedWorkerThreadProxy.h" |
| #include <wtf/NeverDestroyed.h> |
| |
| namespace WebCore { |
| |
| SharedWorkerContextManager& SharedWorkerContextManager::singleton() |
| { |
| static NeverDestroyed<SharedWorkerContextManager> sharedManager; |
| return sharedManager; |
| } |
| |
| SharedWorkerThreadProxy* SharedWorkerContextManager::sharedWorker(SharedWorkerIdentifier sharedWorkerIdentifier) const |
| { |
| return m_workerMap.get(sharedWorkerIdentifier); |
| } |
| |
| void SharedWorkerContextManager::stopSharedWorker(SharedWorkerIdentifier sharedWorkerIdentifier) |
| { |
| auto worker = m_workerMap.take(sharedWorkerIdentifier); |
| RELEASE_LOG(SharedWorker, "SharedWorkerContextManager::stopSharedWorker: sharedWorkerIdentifier=%" PRIu64 ", worker=%p", sharedWorkerIdentifier.toUInt64(), worker.get()); |
| if (!worker) |
| return; |
| |
| worker->setAsTerminatingOrTerminated(); |
| |
| // FIXME: We should be able to deal with the thread being unresponsive here. |
| |
| auto& thread = worker->thread(); |
| thread.stop([worker = WTFMove(worker)]() mutable { |
| // Spin the runloop before releasing the shared worker thread proxy, as there would otherwise be |
| // a race towards its destruction. |
| callOnMainThread([worker = WTFMove(worker)] { }); |
| }); |
| } |
| |
| void SharedWorkerContextManager::suspendSharedWorker(SharedWorkerIdentifier sharedWorkerIdentifier) |
| { |
| auto* worker = m_workerMap.get(sharedWorkerIdentifier); |
| RELEASE_LOG(SharedWorker, "SharedWorkerContextManager::suspendSharedWorker: sharedWorkerIdentifier=%" PRIu64 ", worker=%p", sharedWorkerIdentifier.toUInt64(), worker); |
| if (worker) |
| worker->thread().suspend(); |
| } |
| |
| void SharedWorkerContextManager::resumeSharedWorker(SharedWorkerIdentifier sharedWorkerIdentifier) |
| { |
| auto* worker = m_workerMap.get(sharedWorkerIdentifier); |
| RELEASE_LOG(SharedWorker, "SharedWorkerContextManager::resumeSharedWorker: sharedWorkerIdentifier=%" PRIu64 ", worker=%p", sharedWorkerIdentifier.toUInt64(), worker); |
| if (worker) |
| worker->thread().resume(); |
| } |
| |
| void SharedWorkerContextManager::stopAllSharedWorkers() |
| { |
| while (!m_workerMap.isEmpty()) |
| stopSharedWorker(m_workerMap.begin()->key); |
| } |
| |
| void SharedWorkerContextManager::setConnection(std::unique_ptr<Connection>&& connection) |
| { |
| ASSERT(!m_connection || m_connection->isClosed()); |
| m_connection = WTFMove(connection); |
| } |
| |
| auto SharedWorkerContextManager::connection() const -> Connection* |
| { |
| return m_connection.get(); |
| } |
| |
| void SharedWorkerContextManager::registerSharedWorkerThread(Ref<SharedWorkerThreadProxy>&& proxy) |
| { |
| ASSERT(isMainThread()); |
| RELEASE_LOG(SharedWorker, "SharedWorkerContextManager::registerSharedWorkerThread: sharedWorkerIdentifier=%" PRIu64, proxy->identifier().toUInt64()); |
| |
| auto result = m_workerMap.add(proxy->identifier(), proxy.copyRef()); |
| ASSERT_UNUSED(result, result.isNewEntry); |
| |
| proxy->thread().start([](const String& /*exceptionMessage*/) { }); |
| } |
| |
| void SharedWorkerContextManager::Connection::postConnectEvent(SharedWorkerIdentifier sharedWorkerIdentifier, TransferredMessagePort&& transferredPort, String&& sourceOrigin) |
| { |
| ASSERT(isMainThread()); |
| auto* proxy = SharedWorkerContextManager::singleton().sharedWorker(sharedWorkerIdentifier); |
| RELEASE_LOG(SharedWorker, "SharedWorkerContextManager::Connection::postConnectEvent: sharedWorkerIdentifier=%" PRIu64 ", proxy=%p", sharedWorkerIdentifier.toUInt64(), proxy); |
| if (!proxy) |
| return; |
| |
| proxy->thread().runLoop().postTask([transferredPort = WTFMove(transferredPort), sourceOrigin = WTFMove(sourceOrigin).isolatedCopy()] (auto& scriptExecutionContext) mutable { |
| ASSERT(!isMainThread()); |
| downcast<SharedWorkerGlobalScope>(scriptExecutionContext).postConnectEvent(WTFMove(transferredPort), WTFMove(sourceOrigin)); |
| }); |
| } |
| |
| void SharedWorkerContextManager::Connection::terminateSharedWorker(SharedWorkerIdentifier sharedWorkerIdentifier) |
| { |
| ASSERT(isMainThread()); |
| RELEASE_LOG(SharedWorker, "SharedWorkerContextManager::Connection::terminateSharedWorker: sharedWorkerIdentifier=%" PRIu64, sharedWorkerIdentifier.toUInt64()); |
| SharedWorkerContextManager::singleton().stopSharedWorker(sharedWorkerIdentifier); |
| } |
| |
| void SharedWorkerContextManager::Connection::suspendSharedWorker(SharedWorkerIdentifier identifier) |
| { |
| SharedWorkerContextManager::singleton().suspendSharedWorker(identifier); |
| } |
| |
| void SharedWorkerContextManager::Connection::resumeSharedWorker(SharedWorkerIdentifier identifier) |
| { |
| SharedWorkerContextManager::singleton().resumeSharedWorker(identifier); |
| } |
| |
| void SharedWorkerContextManager::forEachSharedWorker(const Function<Function<void(ScriptExecutionContext&)>()>& createTask) |
| { |
| for (auto& worker : m_workerMap.values()) |
| worker->thread().runLoop().postTask(createTask()); |
| } |
| |
| } // namespace WebCore |