| /* |
| * Copyright (C) 2019 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 "WorkerMessagePortChannelProvider.h" |
| |
| #include "MessagePort.h" |
| #include "WorkerGlobalScope.h" |
| #include "WorkerThread.h" |
| #include <wtf/MainThread.h> |
| #include <wtf/RunLoop.h> |
| |
| namespace WebCore { |
| |
| WorkerMessagePortChannelProvider::WorkerMessagePortChannelProvider(WorkerGlobalScope& scope) |
| : m_scope(scope) |
| { |
| } |
| |
| WorkerMessagePortChannelProvider::~WorkerMessagePortChannelProvider() |
| { |
| while (!m_takeAllMessagesCallbacks.isEmpty()) { |
| auto first = m_takeAllMessagesCallbacks.begin(); |
| first->value({ }, [] { }); |
| m_takeAllMessagesCallbacks.remove(first); |
| } |
| while (!m_activityCallbacks.isEmpty()) { |
| auto first = m_activityCallbacks.begin(); |
| first->value(HasActivity::No); |
| m_activityCallbacks.remove(first); |
| } |
| } |
| |
| void WorkerMessagePortChannelProvider::createNewMessagePortChannel(const MessagePortIdentifier& local, const MessagePortIdentifier& remote) |
| { |
| callOnMainThread([local, remote] { |
| MessagePortChannelProvider::singleton().createNewMessagePortChannel(local, remote); |
| }); |
| } |
| |
| void WorkerMessagePortChannelProvider::entangleLocalPortInThisProcessToRemote(const MessagePortIdentifier& local, const MessagePortIdentifier& remote) |
| { |
| callOnMainThread([local, remote] { |
| MessagePortChannelProvider::singleton().entangleLocalPortInThisProcessToRemote(local, remote); |
| }); |
| } |
| |
| void WorkerMessagePortChannelProvider::messagePortDisentangled(const MessagePortIdentifier& local) |
| { |
| callOnMainThread([local] { |
| MessagePortChannelProvider::singleton().messagePortDisentangled(local); |
| }); |
| } |
| |
| void WorkerMessagePortChannelProvider::messagePortClosed(const MessagePortIdentifier&) |
| { |
| ASSERT_NOT_REACHED(); |
| } |
| |
| void WorkerMessagePortChannelProvider::postMessageToRemote(MessageWithMessagePorts&& message, const MessagePortIdentifier& remoteTarget) |
| { |
| callOnMainThread([message = WTFMove(message), remoteTarget]() mutable { |
| MessagePortChannelProvider::singleton().postMessageToRemote(WTFMove(message), remoteTarget); |
| }); |
| } |
| |
| void WorkerMessagePortChannelProvider::takeAllMessagesForPort(const MessagePortIdentifier& identifier, CompletionHandler<void(Vector<MessageWithMessagePorts>&&, Function<void()>&&)>&& callback) |
| { |
| uint64_t callbackIdentifier = ++m_lastCallbackIdentifier; |
| m_takeAllMessagesCallbacks.add(callbackIdentifier, WTFMove(callback)); |
| |
| callOnMainThread([this, workerThread = makeRef(m_scope.thread()), callbackIdentifier, identifier]() mutable { |
| MessagePortChannelProvider::singleton().takeAllMessagesForPort(identifier, [this, workerThread = WTFMove(workerThread), callbackIdentifier](Vector<MessageWithMessagePorts>&& messages, Function<void()>&& completionHandler) { |
| workerThread->runLoop().postTaskForMode([this, callbackIdentifier, messages = WTFMove(messages), completionHandler = WTFMove(completionHandler)](auto& scope) mutable { |
| ASSERT_UNUSED(scope, this == &downcast<WorkerGlobalScope>(scope).messagePortChannelProvider()); |
| m_takeAllMessagesCallbacks.take(callbackIdentifier)(WTFMove(messages), [completionHandler = WTFMove(completionHandler)]() mutable { |
| callOnMainThread(WTFMove(completionHandler)); |
| }); |
| }, WorkerRunLoop::defaultMode()); |
| }); |
| }); |
| } |
| |
| void WorkerMessagePortChannelProvider::checkRemotePortForActivity(const MessagePortIdentifier& remoteTarget, CompletionHandler<void(HasActivity)>&& callback) |
| { |
| uint64_t callbackIdentifier = ++m_lastCallbackIdentifier; |
| m_activityCallbacks.add(callbackIdentifier, WTFMove(callback)); |
| |
| callOnMainThread([this, workerThread = makeRef(m_scope.thread()), callbackIdentifier, remoteTarget]() mutable { |
| MessagePortChannelProvider::singleton().checkRemotePortForActivity(remoteTarget, [this, workerThread = WTFMove(workerThread), callbackIdentifier](auto hasActivity) { |
| workerThread->runLoop().postTaskForMode([this, callbackIdentifier, hasActivity](auto& scope) mutable { |
| ASSERT_UNUSED(scope, this == &downcast<WorkerGlobalScope>(scope).messagePortChannelProvider()); |
| m_activityCallbacks.take(callbackIdentifier)(hasActivity); |
| }, WorkerRunLoop::defaultMode()); |
| }); |
| }); |
| } |
| |
| } // namespace WebCore |