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/*
* Copyright (C) 2023 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
#include "MessageReceiver.h"
#include "MessageSender.h"
#include "WebPageProxyIdentifier.h"
#include <WebCore/ProcessQualified.h>
#include <WebCore/WebTransportSession.h>
#include <wtf/NativePromise.h>
#include <wtf/ObjectIdentifier.h>
#include <wtf/ThreadSafeWeakPtr.h>
namespace IPC {
enum class Error : uint8_t;
}
namespace WebCore {
class Exception;
class WebTransportSession;
class WebTransportSessionClient;
struct ClientOrigin;
struct WebTransportConnectionInfo;
struct WebTransportOptions;
struct WebTransportStreamIdentifierType;
using WebTransportStreamIdentifier = ObjectIdentifier<WebTransportStreamIdentifierType>;
using WebTransportSessionPromise = NativePromise<WebTransportConnectionInfo, void>;
using WebTransportSendPromise = NativePromise<std::optional<Exception>, void>;
using WebTransportSessionErrorCode = uint32_t;
using WebTransportStreamErrorCode = uint64_t;
}
namespace WebKit {
class WebTransportBidirectionalStream;
class WebTransportReceiveStream;
class WebTransportSendStream;
struct WebTransportSessionIdentifierType { };
using WebTransportSessionIdentifier = AtomicObjectIdentifier<WebTransportSessionIdentifierType>;
class WebTransportSession : public WebCore::WebTransportSession, public IPC::MessageReceiver, public IPC::MessageSender, public ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr<WebTransportSession> {
public:
static std::pair<Ref<WebTransportSession>, Ref<WebCore::WebTransportSessionPromise>> initialize(Ref<IPC::Connection>&&, ThreadSafeWeakPtr<WebCore::WebTransportSessionClient>&&, const URL&, const WebCore::WebTransportOptions&, const WebPageProxyIdentifier&, const WebCore::ClientOrigin&);
~WebTransportSession();
void receiveDatagram(std::span<const uint8_t>, bool, std::optional<WebCore::Exception>&&);
void receiveIncomingUnidirectionalStream(WebCore::WebTransportStreamIdentifier);
void receiveBidirectionalStream(WebCore::WebTransportStreamIdentifier);
void streamReceiveBytes(WebCore::WebTransportStreamIdentifier, std::span<const uint8_t>, bool, std::optional<WebCore::Exception>&&);
void streamReceiveError(WebCore::WebTransportStreamIdentifier, uint64_t);
void streamSendError(WebCore::WebTransportStreamIdentifier, uint64_t);
void didFail(std::optional<uint32_t>&&, String&&);
void didDrain();
WTF_ABSTRACT_THREAD_SAFE_REF_COUNTED_AND_CAN_MAKE_WEAK_PTR_IMPL;
// MessageReceiver
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
private:
WebTransportSession(Ref<IPC::Connection>&&, ThreadSafeWeakPtr<WebCore::WebTransportSessionClient>&&, WebTransportSessionIdentifier);
// WebTransportSession
Ref<WebCore::WebTransportSendPromise> sendDatagram(std::optional<WebCore::WebTransportSendGroupIdentifier>, std::span<const uint8_t>) final;
Ref<WebCore::WritableStreamPromise> createOutgoingUnidirectionalStream() final;
Ref<WebCore::BidirectionalStreamPromise> createBidirectionalStream() final;
Ref<WebCore::WebTransportSendPromise> streamSendBytes(WebCore::WebTransportStreamIdentifier, std::span<const uint8_t>, bool withFin) final;
Ref<WebCore::WebTransportConnectionStatsPromise> getStats() final;
Ref<WebCore::WebTransportSendStreamStatsPromise> getSendStreamStats(WebCore::WebTransportStreamIdentifier) final;
Ref<WebCore::WebTransportReceiveStreamStatsPromise> getReceiveStreamStats(WebCore::WebTransportStreamIdentifier) final;
Ref<WebCore::WebTransportSendStreamStatsPromise> getSendGroupStats(WebCore::WebTransportSendGroupIdentifier) final;
void cancelReceiveStream(WebCore::WebTransportStreamIdentifier, std::optional<WebCore::WebTransportStreamErrorCode>);
void cancelSendStream(WebCore::WebTransportStreamIdentifier, std::optional<WebCore::WebTransportStreamErrorCode>);
void destroyStream(WebCore::WebTransportStreamIdentifier, std::optional<WebCore::WebTransportStreamErrorCode>);
void terminate(WebCore::WebTransportSessionErrorCode, CString&&) final;
void datagramIncomingMaxAgeUpdated(std::optional<double>) final;
void datagramOutgoingMaxAgeUpdated(std::optional<double>) final;
void datagramIncomingHighWaterMarkUpdated(double) final;
void datagramOutgoingHighWaterMarkUpdated(double) final;
// MessageSender
IPC::Connection* messageSenderConnection() const final;
uint64_t messageSenderDestinationID() const final;
const Ref<IPC::Connection> m_connection;
const ThreadSafeWeakPtr<WebCore::WebTransportSessionClient> m_client;
const WebTransportSessionIdentifier m_identifier;
};
}
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