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

// Copyright (c) 2017 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_CONTROL_FRAME_MANAGER_H_
#define QUICHE_QUIC_CORE_QUIC_CONTROL_FRAME_MANAGER_H_

#include <cstdint>
#include <string>

#include "absl/container/flat_hash_map.h"
#include "quiche/quic/core/frames/quic_frame.h"
#include "quiche/quic/core/quic_connection_id.h"
#include "quiche/quic/core/quic_error_codes.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/common/quiche_circular_deque.h"
#include "quiche/common/quiche_linked_hash_map.h"

namespace quic {

class QuicSession;

namespace test {
class QuicControlFrameManagerPeer;
}  // namespace test

// Control frame manager contains a list of sent control frames with valid
// control frame IDs. Control frames without valid control frame IDs include:
// (1) non-retransmittable frames (e.g., ACK_FRAME, PADDING_FRAME,
// STOP_WAITING_FRAME, etc.), (2) CONNECTION_CLOSE and IETF Quic
// APPLICATION_CLOSE frames.
// New control frames are added to the tail of the list when they are added to
// the generator. Control frames are removed from the head of the list when they
// get acked. Control frame manager also keeps track of lost control frames
// which need to be retransmitted.
class QUICHE_EXPORT QuicControlFrameManager { … };

}  // namespace quic

#endif  // QUICHE_QUIC_CORE_QUIC_CONTROL_FRAME_MANAGER_H_