| // Copyright (c) 2020 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_FRAMES_QUIC_ACK_FREQUENCY_FRAME_H_ |
| #define QUICHE_QUIC_CORE_FRAMES_QUIC_ACK_FREQUENCY_FRAME_H_ |
| |
| #include <cstdint> |
| #include <ostream> |
| |
| #include "quic/core/quic_constants.h" |
| #include "quic/core/quic_time.h" |
| #include "quic/core/quic_types.h" |
| #include "quic/platform/api/quic_export.h" |
| |
| namespace quic { |
| |
| // A frame that allows sender control of acknowledgement delays. |
| struct QUIC_EXPORT_PRIVATE QuicAckFrequencyFrame { |
| friend QUIC_EXPORT_PRIVATE std::ostream& operator<<( |
| std::ostream& os, |
| const QuicAckFrequencyFrame& ack_frequency_frame); |
| |
| QuicAckFrequencyFrame() = default; |
| QuicAckFrequencyFrame(QuicControlFrameId control_frame_id, |
| uint64_t sequence_number, |
| uint64_t packet_tolerance, |
| QuicTime::Delta max_ack_delay); |
| |
| // A unique identifier of this control frame. 0 when this frame is |
| // received, and non-zero when sent. |
| QuicControlFrameId control_frame_id = kInvalidControlFrameId; |
| |
| // If true, do not ack immediately upon observeation of packet reordering. |
| bool ignore_order = false; |
| |
| // Sequence number assigned to the ACK_FREQUENCY frame by the sender to allow |
| // receivers to ignore obsolete frames. |
| uint64_t sequence_number = 0; |
| |
| // The maximum number of ack-eliciting packets after which the receiver sends |
| // an acknowledgement. Invald if == 0. |
| uint64_t packet_tolerance = 2; |
| |
| // The maximum time that ack packets can be delayed. |
| QuicTime::Delta max_ack_delay = |
| QuicTime::Delta::FromMilliseconds(kDefaultDelayedAckTimeMs); |
| }; |
| |
| } // namespace quic |
| |
| #endif // QUICHE_QUIC_CORE_FRAMES_QUIC_ACK_FREQUENCY_FRAME_H_ |