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

// Copyright (c) 2016 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.

#ifndef QUICHE_QUIC_CORE_QUIC_BUFFERED_PACKET_STORE_H_
#define QUICHE_QUIC_CORE_QUIC_BUFFERED_PACKET_STORE_H_

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

#include "absl/container/flat_hash_map.h"
#include "absl/container/inlined_vector.h"
#include "quiche/quic/core/connection_id_generator.h"
#include "quiche/quic/core/quic_alarm.h"
#include "quiche/quic/core/quic_alarm_factory.h"
#include "quiche/quic/core/quic_clock.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_dispatcher_stats.h"
#include "quiche/quic/core/quic_error_codes.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_stream_frame_data_producer.h"
#include "quiche/quic/core/quic_stream_send_buffer.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/core/quic_versions.h"
#include "quiche/quic/core/tls_chlo_extractor.h"
#include "quiche/quic/platform/api/quic_export.h"
#include "quiche/quic/platform/api/quic_socket_address.h"
#include "quiche/common/platform/api/quiche_export.h"
#include "quiche/common/platform/api/quiche_logging.h"
#include "quiche/common/quiche_buffer_allocator.h"
#include "quiche/common/quiche_intrusive_list.h"
#include "quiche/common/quiche_linked_hash_map.h"

namespace quic {

namespace test {
class QuicBufferedPacketStorePeer;
}  // namespace test

// This class buffers packets for each connection until either
// 1) They are requested to be delivered via
//    DeliverPacket()/DeliverPacketsForNextConnection(), or
// 2) They expire after exceeding their lifetime in the store.
//
// It can only buffer packets on certain number of connections. It has two pools
// of connections: connections with CHLO buffered and those without CHLO. The
// latter has its own upper limit along with the max number of connections this
// store can hold. The former pool can grow till this store is full.
class QUICHE_EXPORT QuicBufferedPacketStore { … };

// Collects packets serialized by a QuicPacketCreator.
class QUICHE_NO_EXPORT PacketCollector
    : public QuicPacketCreator::DelegateInterface,
      public QuicStreamFrameDataProducer { … };

}  // namespace quic

#endif  // QUICHE_QUIC_CORE_QUIC_BUFFERED_PACKET_STORE_H_