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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/WebTransportOptions.h>
#include <wtf/Identified.h>
#include <wtf/RefCounted.h>
#include <wtf/TZoneMalloc.h>
#if PLATFORM(COCOA)
#include <Network/Network.h>
#include <wtf/RetainPtr.h>
#endif
namespace WebCore {
class Exception;
struct ClientOrigin;
struct WebTransportConnectionStats;
struct WebTransportReceiveStreamStats;
struct WebTransportSendStreamStats;
struct WebTransportStreamIdentifierType;
using WebTransportStreamIdentifier = ObjectIdentifier<WebTransportStreamIdentifierType>;
using WebTransportSessionErrorCode = uint32_t;
using WebTransportStreamErrorCode = uint64_t;
}
namespace WebKit {
class NetworkConnectionToWebProcess;
class NetworkTransportStream;
enum class NetworkTransportStreamType : uint8_t;
struct SharedPreferencesForWebProcess;
struct WebTransportSessionIdentifierType;
using WebTransportSessionIdentifier = AtomicObjectIdentifier<WebTransportSessionIdentifierType>;
class NetworkTransportSession : public RefCounted<NetworkTransportSession>, public IPC::MessageReceiver, public IPC::MessageSender {
WTF_MAKE_TZONE_ALLOCATED(NetworkTransportSession);
public:
static RefPtr<NetworkTransportSession> create(NetworkConnectionToWebProcess&, WebTransportSessionIdentifier, URL&&, WebCore::WebTransportOptions&&, WebKit::WebPageProxyIdentifier&&, WebCore::ClientOrigin&&);
~NetworkTransportSession();
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
void initialize(CompletionHandler<void(bool)>&&);
void sendDatagram(std::span<const uint8_t>, CompletionHandler<void(std::optional<WebCore::Exception>&&)>&&);
void createOutgoingUnidirectionalStream(CompletionHandler<void(std::optional<WebCore::WebTransportStreamIdentifier>)>&&);
void createBidirectionalStream(CompletionHandler<void(std::optional<WebCore::WebTransportStreamIdentifier>)>&&);
void getStats(CompletionHandler<void(WebCore::WebTransportConnectionStats&&)>&&);
void getSendStreamStats(WebCore::WebTransportStreamIdentifier, CompletionHandler<void(std::optional<WebCore::WebTransportSendStreamStats>&&)>&&);
void getReceiveStreamStats(WebCore::WebTransportStreamIdentifier, CompletionHandler<void(std::optional<WebCore::WebTransportReceiveStreamStats>&&)>&&);
void destroyOutgoingUnidirectionalStream(WebCore::WebTransportStreamIdentifier);
void destroyBidirectionalStream(WebCore::WebTransportStreamIdentifier);
void streamSendBytes(WebCore::WebTransportStreamIdentifier, std::span<const uint8_t>, bool withFin, CompletionHandler<void(std::optional<WebCore::Exception>&&)>&&);
void terminate(WebCore::WebTransportSessionErrorCode, CString&&);
void receiveDatagram(std::span<const uint8_t>, bool, std::optional<WebCore::Exception>&&);
void streamReceiveBytes(WebCore::WebTransportStreamIdentifier, std::span<const uint8_t>, bool, std::optional<WebCore::Exception>&&);
void receiveIncomingUnidirectionalStream(WebCore::WebTransportStreamIdentifier);
void receiveBidirectionalStream(WebCore::WebTransportStreamIdentifier);
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 didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
std::optional<SharedPreferencesForWebProcess> sharedPreferencesForWebProcess() const;
private:
#if PLATFORM(COCOA)
static Ref<NetworkTransportSession> create(NetworkConnectionToWebProcess&, WebTransportSessionIdentifier, WebCore::WebTransportOptions&&, nw_connection_group_t, nw_endpoint_t);
NetworkTransportSession(NetworkConnectionToWebProcess&, WebTransportSessionIdentifier, WebCore::WebTransportOptions&&, nw_connection_group_t, nw_endpoint_t);
#else
NetworkTransportSession();
#endif
IPC::Connection* messageSenderConnection() const final;
uint64_t messageSenderDestinationID() const final;
void setupConnectionHandler();
void setupDatagramConnection(CompletionHandler<void(bool)>&&);
void receiveDatagramLoop();
void createStream(NetworkTransportStreamType, CompletionHandler<void(std::optional<WebCore::WebTransportStreamIdentifier>)>&&);
HashMap<WebCore::WebTransportStreamIdentifier, Ref<NetworkTransportStream>> m_streams;
WeakPtr<NetworkConnectionToWebProcess> m_connectionToWebProcess;
const WebTransportSessionIdentifier m_identifier;
const WebCore::WebTransportOptions m_options;
#if PLATFORM(COCOA)
const RetainPtr<nw_connection_group_t> m_connectionGroup;
const RetainPtr<nw_endpoint_t> m_endpoint;
RetainPtr<nw_connection_t> m_datagramConnection;
#endif
};
}
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