| /* |
| * Copyright (C) 2018 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 "WebMessagePortChannelProvider.h" |
| |
| #include "WebProcess.h" |
| #include "WebProcessProxyMessages.h" |
| #include <WebCore/MessagePort.h> |
| #include <WebCore/MessagePortIdentifier.h> |
| #include <WebCore/MessageWithMessagePorts.h> |
| |
| using namespace WebCore; |
| |
| namespace WebKit { |
| |
| WebMessagePortChannelProvider& WebMessagePortChannelProvider::singleton() |
| { |
| static WebMessagePortChannelProvider* provider = new WebMessagePortChannelProvider; |
| return *provider; |
| } |
| |
| WebMessagePortChannelProvider::WebMessagePortChannelProvider() |
| { |
| } |
| |
| WebMessagePortChannelProvider::~WebMessagePortChannelProvider() |
| { |
| ASSERT_NOT_REACHED(); |
| } |
| |
| void WebMessagePortChannelProvider::createNewMessagePortChannel(const MessagePortIdentifier& port1, const MessagePortIdentifier& port2) |
| { |
| WebProcess::singleton().parentProcessConnection()->send(Messages::WebProcessProxy::CreateNewMessagePortChannel(port1, port2), 0); |
| } |
| |
| void WebMessagePortChannelProvider::entangleLocalPortInThisProcessToRemote(const MessagePortIdentifier& local, const MessagePortIdentifier& remote) |
| { |
| WebProcess::singleton().parentProcessConnection()->send(Messages::WebProcessProxy::EntangleLocalPortInThisProcessToRemote(local, remote), 0); |
| } |
| |
| void WebMessagePortChannelProvider::messagePortDisentangled(const MessagePortIdentifier& port) |
| { |
| WebProcess::singleton().parentProcessConnection()->send(Messages::WebProcessProxy::MessagePortDisentangled(port), 0); |
| } |
| |
| void WebMessagePortChannelProvider::messagePortClosed(const MessagePortIdentifier& port) |
| { |
| WebProcess::singleton().parentProcessConnection()->send(Messages::WebProcessProxy::MessagePortClosed(port), 0); |
| } |
| |
| void WebMessagePortChannelProvider::takeAllMessagesForPort(const MessagePortIdentifier& port, Function<void(Vector<MessageWithMessagePorts>&&, Function<void()>&&)>&& completionHandler) |
| { |
| static std::atomic<uint64_t> currentHandlerIdentifier; |
| uint64_t identifier = ++currentHandlerIdentifier; |
| |
| { |
| Locker<Lock> locker(m_takeAllMessagesCallbackLock); |
| auto result = m_takeAllMessagesCallbacks.ensure(identifier, [completionHandler = WTFMove(completionHandler)]() mutable { |
| return WTFMove(completionHandler); |
| }); |
| ASSERT_UNUSED(result, result.isNewEntry); |
| } |
| |
| WebProcess::singleton().parentProcessConnection()->send(Messages::WebProcessProxy::TakeAllMessagesForPort(port, identifier), 0); |
| } |
| |
| void WebMessagePortChannelProvider::didTakeAllMessagesForPort(Vector<MessageWithMessagePorts>&& messages, uint64_t messageCallbackIdentifier, uint64_t messageBatchIdentifier) |
| { |
| ASSERT(isMainThread()); |
| |
| Locker<Lock> locker(m_takeAllMessagesCallbackLock); |
| auto callback = m_takeAllMessagesCallbacks.take(messageCallbackIdentifier); |
| locker.unlockEarly(); |
| |
| ASSERT(callback); |
| callback(WTFMove(messages), [messageBatchIdentifier] { |
| WebProcess::singleton().parentProcessConnection()->send(Messages::WebProcessProxy::DidDeliverMessagePortMessages(messageBatchIdentifier), 0); |
| }); |
| } |
| |
| void WebMessagePortChannelProvider::didCheckRemotePortForActivity(uint64_t callbackIdentifier, bool hasActivity) |
| { |
| ASSERT(isMainThread()); |
| |
| Locker<Lock> locker(m_remoteActivityCallbackLock); |
| auto callback = m_remoteActivityCallbacks.take(callbackIdentifier); |
| locker.unlockEarly(); |
| |
| ASSERT(callback); |
| callback(hasActivity ? HasActivity::Yes : HasActivity::No); |
| } |
| |
| void WebMessagePortChannelProvider::postMessageToRemote(MessageWithMessagePorts&& message, const MessagePortIdentifier& remoteTarget) |
| { |
| WebProcess::singleton().parentProcessConnection()->send(Messages::WebProcessProxy::PostMessageToRemote(WTFMove(message), remoteTarget), 0); |
| } |
| |
| void WebMessagePortChannelProvider::checkProcessLocalPortForActivity(const MessagePortIdentifier& identifier, uint64_t callbackIdentifier) |
| { |
| WebProcess::singleton().parentProcessConnection()->send(Messages::WebProcessProxy::DidCheckProcessLocalPortForActivity { callbackIdentifier, MessagePort::isExistingMessagePortLocallyReachable(identifier) }, 0); |
| } |
| |
| void WebMessagePortChannelProvider::checkProcessLocalPortForActivity(const MessagePortIdentifier&, ProcessIdentifier, CompletionHandler<void(HasActivity)>&&) |
| { |
| // To be called only in the UI process provider, not the Web process provider. |
| ASSERT_NOT_REACHED(); |
| } |
| |
| void WebMessagePortChannelProvider::checkRemotePortForActivity(const MessagePortIdentifier& remoteTarget, CompletionHandler<void(HasActivity)>&& completionHandler) |
| { |
| static std::atomic<uint64_t> currentHandlerIdentifier; |
| uint64_t identifier = ++currentHandlerIdentifier; |
| |
| { |
| Locker<Lock> locker(m_remoteActivityCallbackLock); |
| auto result = m_remoteActivityCallbacks.ensure(identifier, [completionHandler = WTFMove(completionHandler)]() mutable { |
| return WTFMove(completionHandler); |
| }); |
| ASSERT_UNUSED(result, result.isNewEntry); |
| } |
| |
| WebProcess::singleton().parentProcessConnection()->send(Messages::WebProcessProxy::CheckRemotePortForActivity(remoteTarget, identifier), 0); |
| } |
| |
| } // namespace WebKit |