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// 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_TRANSMISSION_INFO_H_
#define QUICHE_QUIC_CORE_QUIC_TRANSMISSION_INFO_H_
#include <list>
#include "net/third_party/quiche/src/quic/core/frames/quic_frame.h"
#include "net/third_party/quiche/src/quic/core/quic_ack_listener_interface.h"
#include "net/third_party/quiche/src/quic/core/quic_types.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
namespace quic {
// Stores details of a single sent packet.
struct QUIC_EXPORT_PRIVATE QuicTransmissionInfo {
// Used by STL when assigning into a map.
QuicTransmissionInfo();
// Constructs a Transmission with a new all_transmissions set
// containing |packet_number|.
QuicTransmissionInfo(EncryptionLevel level,
QuicPacketNumberLength packet_number_length,
TransmissionType transmission_type,
QuicTime sent_time,
QuicPacketLength bytes_sent,
bool has_crypto_handshake,
int num_padding_bytes);
QuicTransmissionInfo(const QuicTransmissionInfo& other);
~QuicTransmissionInfo();
QuicFrames retransmittable_frames;
EncryptionLevel encryption_level;
// TODO(fayang): remove this when deprecating QUIC_VERSION_39.
QuicPacketNumberLength packet_number_length;
QuicPacketLength bytes_sent;
QuicTime sent_time;
// Reason why this packet was transmitted.
TransmissionType transmission_type;
// In flight packets have not been abandoned or lost.
bool in_flight;
// State of this packet.
SentPacketState state;
// True if the packet contains stream data from the crypto stream.
bool has_crypto_handshake;
// Non-zero if the packet needs padding if it's retransmitted.
int16_t num_padding_bytes;
// Stores the packet number of the next retransmission of this packet.
// Zero if the packet has not been retransmitted.
// TODO(fayang): rename this to first_sent_after_loss_ when deprecating
// QUIC_VERSION_41.
QuicPacketNumber retransmission;
// The largest_acked in the ack frame, if the packet contains an ack.
QuicPacketNumber largest_acked;
};
// TODO(ianswett): Add static_assert when size of this struct is reduced below
// 64 bytes.
// NOTE(vlovich): Existing static_assert removed because padding differences on
// 64-bit iOS resulted in an 88-byte struct that is greater than the 84-byte
// limit on other platforms. Removing per ianswett's request.
} // namespace quic
#endif // QUICHE_QUIC_CORE_QUIC_TRANSMISSION_INFO_H_
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