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/*
* 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 "MessagePortChannelProviderImpl.h"
#include "MessagePort.h"
#include <wtf/MainThread.h>
#include <wtf/RunLoop.h>
namespace WebCore {
MessagePortChannelProviderImpl::MessagePortChannelProviderImpl() = default;
MessagePortChannelProviderImpl::~MessagePortChannelProviderImpl()
{
ASSERT_NOT_REACHED();
}
void MessagePortChannelProviderImpl::createNewMessagePortChannel(const MessagePortIdentifier& local, const MessagePortIdentifier& remote)
{
ensureOnMainThread([weakRegistry = WeakPtr { m_registry }, local, remote] {
if (CheckedPtr registry = weakRegistry.get())
registry->didCreateMessagePortChannel(local, remote);
});
}
void MessagePortChannelProviderImpl::entangleLocalPortInThisProcessToRemote(const MessagePortIdentifier& local, const MessagePortIdentifier& remote)
{
ensureOnMainThread([weakRegistry = WeakPtr { m_registry }, local, remote] {
if (CheckedPtr registry = weakRegistry.get())
registry->didEntangleLocalToRemote(local, remote, Process::identifier());
});
}
void MessagePortChannelProviderImpl::messagePortDisentangled(const MessagePortIdentifier& local)
{
ensureOnMainThread([weakRegistry = WeakPtr { m_registry }, local] {
if (CheckedPtr registry = weakRegistry.get())
registry->didDisentangleMessagePort(local);
});
}
void MessagePortChannelProviderImpl::messagePortClosed(const MessagePortIdentifier& local)
{
ensureOnMainThread([weakRegistry = WeakPtr { m_registry }, local] {
if (CheckedPtr registry = weakRegistry.get())
registry->didCloseMessagePort(local);
});
}
void MessagePortChannelProviderImpl::postMessageToRemote(MessageWithMessagePorts&& message, const MessagePortIdentifier& remoteTarget)
{
ensureOnMainThread([weakRegistry = WeakPtr { m_registry }, message = WTFMove(message), remoteTarget]() mutable {
CheckedPtr registry = weakRegistry.get();
if (!registry)
return;
if (registry->didPostMessageToRemote(WTFMove(message), remoteTarget))
MessagePort::notifyMessageAvailable(remoteTarget);
});
}
void MessagePortChannelProviderImpl::takeAllMessagesForPort(const MessagePortIdentifier& port, CompletionHandler<void(Vector<MessageWithMessagePorts>&&, CompletionHandler<void()>&&)>&& outerCallback)
{
// It is the responsibility of outerCallback to get itself to the appropriate thread (e.g. WebWorker thread)
auto callback = [outerCallback = WTFMove(outerCallback)](Vector<MessageWithMessagePorts>&& messages, CompletionHandler<void()>&& messageDeliveryCallback) mutable {
ASSERT(isMainThread());
outerCallback(WTFMove(messages), WTFMove(messageDeliveryCallback));
};
ensureOnMainThread([weakRegistry = WeakPtr { m_registry }, port, callback = WTFMove(callback)]() mutable {
if (CheckedPtr registry = weakRegistry.get())
registry->takeAllMessagesForPort(port, WTFMove(callback));
});
}
} // namespace WebCore
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