Index: net/quic/congestion_control/time_loss_algorithm.cc |
diff --git a/net/quic/congestion_control/time_loss_algorithm.cc b/net/quic/congestion_control/time_loss_algorithm.cc |
deleted file mode 100644 |
index b5f90b70096e640749f1cc72ef2f3b80329f0332..0000000000000000000000000000000000000000 |
--- a/net/quic/congestion_control/time_loss_algorithm.cc |
+++ /dev/null |
@@ -1,73 +0,0 @@ |
-// Copyright 2014 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. |
- |
-#include "net/quic/congestion_control/time_loss_algorithm.h" |
- |
-#include "net/quic/congestion_control/rtt_stats.h" |
-#include "net/quic/quic_protocol.h" |
- |
-namespace net { |
-namespace { |
- |
-// The minimum delay before a packet will be considered lost, |
-// regardless of SRTT. Half of the minimum TLP, since the loss algorithm only |
-// triggers when a nack has been receieved for the packet. |
-static const size_t kMinLossDelayMs = 5; |
- |
-// How many RTTs the algorithm waits before determining a packet is lost. |
-static const double kLossDelayMultiplier = 1.25; |
- |
-} // namespace |
- |
-TimeLossAlgorithm::TimeLossAlgorithm() |
- : loss_detection_timeout_(QuicTime::Zero()) { } |
- |
-LossDetectionType TimeLossAlgorithm::GetLossDetectionType() const { |
- return kTime; |
-} |
- |
-SequenceNumberSet TimeLossAlgorithm::DetectLostPackets( |
- const QuicUnackedPacketMap& unacked_packets, |
- const QuicTime& time, |
- QuicPacketSequenceNumber largest_observed, |
- const RttStats& rtt_stats) { |
- SequenceNumberSet lost_packets; |
- loss_detection_timeout_ = QuicTime::Zero(); |
- QuicTime::Delta loss_delay = QuicTime::Delta::Max( |
- QuicTime::Delta::FromMilliseconds(kMinLossDelayMs), |
- QuicTime::Delta::Max(rtt_stats.smoothed_rtt(), rtt_stats.latest_rtt()) |
- .Multiply(kLossDelayMultiplier)); |
- |
- QuicPacketSequenceNumber sequence_number = unacked_packets.GetLeastUnacked(); |
- for (QuicUnackedPacketMap::const_iterator it = unacked_packets.begin(); |
- it != unacked_packets.end() && sequence_number <= largest_observed; |
- ++it, ++sequence_number) { |
- if (!it->in_flight) { |
- continue; |
- } |
- LOG_IF(DFATAL, it->nack_count == 0 && it->sent_time.IsInitialized()) |
- << "All packets less than largest observed should have been nacked." |
- << "sequence_number:" << sequence_number |
- << " largest_observed:" << largest_observed; |
- |
- // Packets are sent in order, so break when we haven't waited long enough |
- // to lose any more packets and leave the loss_time_ set for the timeout. |
- QuicTime when_lost = it->sent_time.Add(loss_delay); |
- if (time < when_lost) { |
- loss_detection_timeout_ = when_lost; |
- break; |
- } |
- lost_packets.insert(sequence_number); |
- } |
- |
- return lost_packets; |
-} |
- |
-// loss_time_ is updated in DetectLostPackets, which must be called every time |
-// an ack is received or the timeout expires. |
-QuicTime TimeLossAlgorithm::GetLossTimeout() const { |
- return loss_detection_timeout_; |
-} |
- |
-} // namespace net |