Landing Recent QUIC changes until Fri Nov 18 23:21:04 2016 +0000

net/quic/core/quic_transmission_info.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 NET_QUIC_CORE_QUIC_TRANSMISSION_INFO_H_
+#define NET_QUIC_CORE_QUIC_TRANSMISSION_INFO_H_
+
+#include <list>
+
+#include "net/quic/core/frames/quic_frame.h"
+#include "net/quic/core/quic_ack_listener_interface.h"
+#include "net/quic/core/quic_types.h"
+
+namespace net {
+
+// Stores details of a single sent packet.
+struct NET_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;
+  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;
+  // True if the packet can never be acked, so it can be removed.  Occurs when
+  // a packet is never sent, after it is acknowledged once, or if it's a crypto
+  // packet we never expect to receive an ack for.
+  bool is_unackable;
+  // 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.
+  QuicPacketNumber retransmission;
+  // Non-empty if there is a listener for this packet.
+  std::list<AckListenerWrapper> ack_listeners;
+};
+
+}  // namespace net
+
+#endif  // NET_QUIC_CORE_QUIC_TRANSMISSION_INFO_H_