chromium/net/third_party/quiche/src/quiche/quic/core/quic_connection.h

// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// The entity that handles framing writes for a Quic client or server.
// Each QuicSession will have a connection associated with it.
//
// On the server side, the Dispatcher handles the raw reads, and hands off
// packets via ProcessUdpPacket for framing and processing.
//
// On the client side, the Connection handles the raw reads, as well as the
// processing.
//
// Note: this class is not thread-safe.

#ifndef QUICHE_QUIC_CORE_QUIC_CONNECTION_H_
#define QUICHE_QUIC_CORE_QUIC_CONNECTION_H_

#include <cstddef>
#include <cstdint>
#include <list>
#include <map>
#include <memory>
#include <optional>
#include <string>
#include <vector>

#include "absl/strings/string_view.h"
#include "quiche/quic/core/congestion_control/rtt_stats.h"
#include "quiche/quic/core/crypto/quic_decrypter.h"
#include "quiche/quic/core/crypto/quic_encrypter.h"
#include "quiche/quic/core/crypto/quic_random.h"
#include "quiche/quic/core/crypto/transport_parameters.h"
#include "quiche/quic/core/frames/quic_ack_frequency_frame.h"
#include "quiche/quic/core/frames/quic_max_streams_frame.h"
#include "quiche/quic/core/frames/quic_new_connection_id_frame.h"
#include "quiche/quic/core/frames/quic_reset_stream_at_frame.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_blocked_writer_interface.h"
#include "quiche/quic/core/quic_connection_alarms.h"
#include "quiche/quic/core/quic_connection_context.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_connection_id_manager.h"
#include "quiche/quic/core/quic_connection_stats.h"
#include "quiche/quic/core/quic_constants.h"
#include "quiche/quic/core/quic_framer.h"
#include "quiche/quic/core/quic_idle_network_detector.h"
#include "quiche/quic/core/quic_lru_cache.h"
#include "quiche/quic/core/quic_mtu_discovery.h"
#include "quiche/quic/core/quic_network_blackhole_detector.h"
#include "quiche/quic/core/quic_one_block_arena.h"
#include "quiche/quic/core/quic_packet_creator.h"
#include "quiche/quic/core/quic_packet_number.h"
#include "quiche/quic/core/quic_packet_writer.h"
#include "quiche/quic/core/quic_packets.h"
#include "quiche/quic/core/quic_path_validator.h"
#include "quiche/quic/core/quic_ping_manager.h"
#include "quiche/quic/core/quic_sent_packet_manager.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/uber_received_packet_manager.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_flags.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_mem_slice.h"
#include "quiche/common/quiche_circular_deque.h"

namespace quic {

class QuicClock;
class QuicConfig;
class QuicConnection;

namespace test {
class QuicConnectionPeer;
}  // namespace test

// Class that receives callbacks from the connection when the path context is
// available.
class QUICHE_EXPORT MultiPortPathContextObserver { … };

// Class that receives callbacks from the connection when frames are received
// and when other interesting events happen.
class QUICHE_EXPORT QuicConnectionVisitorInterface { … };

// Interface which gets callbacks from the QuicConnection at interesting
// points.  Implementations must not mutate the state of the connection
// as a result of these callbacks.
class QUICHE_EXPORT QuicConnectionDebugVisitor
    : public QuicSentPacketManager::DebugDelegate { … };

class QUICHE_EXPORT QuicConnectionHelperInterface { … };

class QUICHE_EXPORT QuicConnection
    : public QuicFramerVisitorInterface,
      public QuicBlockedWriterInterface,
      public QuicPacketCreator::DelegateInterface,
      public QuicSentPacketManager::NetworkChangeVisitor,
      public QuicNetworkBlackholeDetector::Delegate,
      public QuicIdleNetworkDetector::Delegate,
      public QuicPathValidator::SendDelegate,
      public QuicConnectionIdManagerVisitorInterface,
      public QuicPingManager::Delegate,
      public QuicConnectionAlarmsDelegate { … };

}  // namespace quic

#endif  // QUICHE_QUIC_CORE_QUIC_CONNECTION_H_