src/net/quic/congestion_control/inter_arrival_receiver.cc

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/quic/congestion_control/inter_arrival_receiver.h"
   6
   7 #include "base/basictypes.h"
   8
   9 namespace net {
  10
  11 InterArrivalReceiver::InterArrivalReceiver() {
  12 }
  13
  14 InterArrivalReceiver::~InterArrivalReceiver() {
  15 }
  16
  17 bool InterArrivalReceiver::GenerateCongestionFeedback(
  18     QuicCongestionFeedbackFrame* feedback) {
  19   if (received_packet_times_.size() <= 1) {
  20     // Don't waste resources by sending a feedback frame for only one packet.
  21     return false;
  22   }
  23   feedback->type = kInterArrival;
  24
  25   // Copy our current receive set to our feedback message, we will not resend
  26   // this data if it is lost.
  27   feedback->inter_arrival.received_packet_times = received_packet_times_;
  28
  29   // Prepare for the next set of arriving packets by clearing our current set.
  30   received_packet_times_.clear();
  31   return true;
  32 }
  33
  34 void InterArrivalReceiver::RecordIncomingPacket(
  35     QuicByteCount /*bytes*/,
  36     QuicPacketSequenceNumber sequence_number,
  37     QuicTime timestamp) {
  38   received_packet_times_.insert(std::make_pair(sequence_number, timestamp));
  39 }
  40
  41 }  // namespace net