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/*
* Copyright (C) 2021 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.
*/
#pragma once
#if ENABLE(WEB_RTC)
#include "DataReference.h"
#include "WorkQueueMessageReceiver.h"
#include <WebCore/ProcessQualified.h>
#include <WebCore/RTCDataChannelRemoteHandler.h>
#include <WebCore/RTCDataChannelRemoteHandlerConnection.h>
#include <WebCore/RTCDataChannelRemoteSource.h>
#include <WebCore/RTCDataChannelRemoteSourceConnection.h>
#include <wtf/WorkQueue.h>
namespace WebKit {
class RTCDataChannelRemoteManager final : private IPC::MessageReceiver {
public:
static RTCDataChannelRemoteManager& sharedManager();
WebCore::RTCDataChannelRemoteHandlerConnection& remoteHandlerConnection();
bool connectToRemoteSource(WebCore::RTCDataChannelIdentifier source, WebCore::RTCDataChannelIdentifier handler);
private:
RTCDataChannelRemoteManager();
void initialize();
// IPC::MessageReceiver overrides.
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
// Messages
void sendData(WebCore::RTCDataChannelIdentifier, bool isRaw, const IPC::DataReference&);
void close(WebCore::RTCDataChannelIdentifier);
// To handler
void changeReadyState(WebCore::RTCDataChannelIdentifier, WebCore::RTCDataChannelState);
void receiveData(WebCore::RTCDataChannelIdentifier, bool isRaw, const IPC::DataReference&);
void detectError(WebCore::RTCDataChannelIdentifier, WebCore::RTCErrorDetailType, String&&);
void bufferedAmountIsDecreasing(WebCore::RTCDataChannelIdentifier, size_t);
WebCore::RTCDataChannelRemoteSourceConnection& remoteSourceConnection();
void postTaskToHandler(WebCore::RTCDataChannelIdentifier, Function<void(WebCore::RTCDataChannelRemoteHandler&)>&&);
WebCore::RTCDataChannelRemoteSource* sourceFromIdentifier(WebCore::RTCDataChannelIdentifier);
class RemoteHandlerConnection : public WebCore::RTCDataChannelRemoteHandlerConnection {
public:
static Ref<RemoteHandlerConnection> create(Ref<WorkQueue>&&);
void connectToSource(WebCore::RTCDataChannelRemoteHandler&, WebCore::ScriptExecutionContextIdentifier, WebCore::RTCDataChannelIdentifier, WebCore::RTCDataChannelIdentifier) final;
void sendData(WebCore::RTCDataChannelIdentifier, bool isRaw, const unsigned char*, size_t) final;
void close(WebCore::RTCDataChannelIdentifier) final;
private:
explicit RemoteHandlerConnection(Ref<WorkQueue>&&);
Ref<IPC::Connection> m_connection;
Ref<WorkQueue> m_queue;
};
class RemoteSourceConnection : public WebCore::RTCDataChannelRemoteSourceConnection {
public:
static Ref<RemoteSourceConnection> create();
private:
RemoteSourceConnection();
void didChangeReadyState(WebCore::RTCDataChannelIdentifier, WebCore::RTCDataChannelState) final;
void didReceiveStringData(WebCore::RTCDataChannelIdentifier, const String&) final;
void didReceiveRawData(WebCore::RTCDataChannelIdentifier, const uint8_t*, size_t) final;
void didDetectError(WebCore::RTCDataChannelIdentifier, WebCore::RTCErrorDetailType, const String&) final;
void bufferedAmountIsDecreasing(WebCore::RTCDataChannelIdentifier, size_t) final;
Ref<IPC::Connection> m_connection;
};
struct RemoteHandler {
WeakPtr<WebCore::RTCDataChannelRemoteHandler> handler;
WebCore::ScriptExecutionContextIdentifier contextIdentifier;
};
Ref<WorkQueue> m_queue;
RefPtr<IPC::Connection> m_connection;
RefPtr<RemoteHandlerConnection> m_remoteHandlerConnection;
RefPtr<RemoteSourceConnection> m_remoteSourceConnection;
HashMap<WebCore::RTCDataChannelLocalIdentifier, UniqueRef<WebCore::RTCDataChannelRemoteSource>> m_sources;
HashMap<WebCore::RTCDataChannelLocalIdentifier, RemoteHandler> m_handlers;
};
} // namespace WebKit
#endif // ENABLE(WEB_RTC)
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