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Unified Diff: net/quic/congestion_control/general_loss_algorithm.h

Issue 2193073003: Move shared files in net/quic/ into net/quic/core/ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: io_thread_unittest.cc Created 4 years, 5 months ago
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Index: net/quic/congestion_control/general_loss_algorithm.h
diff --git a/net/quic/congestion_control/general_loss_algorithm.h b/net/quic/congestion_control/general_loss_algorithm.h
deleted file mode 100644
index 625e7745e445f83486a2a0a0338a38b54c32fa5e..0000000000000000000000000000000000000000
--- a/net/quic/congestion_control/general_loss_algorithm.h
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright 2015 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_CONGESTION_CONTROL_GENERAL_LOSS_ALGORITHM_H_
-#define NET_QUIC_CONGESTION_CONTROL_GENERAL_LOSS_ALGORITHM_H_
-
-#include <algorithm>
-#include <map>
-
-#include "base/macros.h"
-#include "net/quic/congestion_control/loss_detection_interface.h"
-#include "net/quic/quic_protocol.h"
-#include "net/quic/quic_time.h"
-#include "net/quic/quic_unacked_packet_map.h"
-
-namespace net {
-
-// Class which can be configured to implement's TCP's approach of detecting loss
-// when 3 nacks have been received for a packet or with a time threshold.
-// Also implements TCP's early retransmit(RFC5827).
-class NET_EXPORT_PRIVATE GeneralLossAlgorithm : public LossDetectionInterface {
- public:
- // TCP retransmits after 3 nacks.
- static const QuicPacketCount kNumberOfNacksBeforeRetransmission = 3;
-
- GeneralLossAlgorithm();
- explicit GeneralLossAlgorithm(LossDetectionType loss_type);
- ~GeneralLossAlgorithm() override {}
-
- LossDetectionType GetLossDetectionType() const override;
- void SetLossDetectionType(LossDetectionType loss_type);
-
- // Uses |largest_acked| and time to decide when packets are lost.
- void DetectLosses(
- const QuicUnackedPacketMap& unacked_packets,
- QuicTime time,
- const RttStats& rtt_stats,
- QuicPacketNumber largest_newly_acked,
- SendAlgorithmInterface::CongestionVector* packets_lost) override;
-
- // Returns a non-zero value when the early retransmit timer is active.
- QuicTime GetLossTimeout() const override;
-
- // Increases the loss detection threshold for time loss detection.
- void SpuriousRetransmitDetected(
- const QuicUnackedPacketMap& unacked_packets,
- QuicTime time,
- const RttStats& rtt_stats,
- QuicPacketNumber spurious_retransmission) override;
-
- int reordering_shift() const { return reordering_shift_; }
-
- private:
- LossDetectionType loss_type_;
- QuicTime loss_detection_timeout_;
- // Largest sent packet when a spurious retransmit is detected.
- // Prevents increasing the reordering threshold multiple times per epoch.
- QuicPacketNumber largest_sent_on_spurious_retransmit_;
- // Fraction of a max(SRTT, latest_rtt) to permit reordering before declaring
- // loss. Fraction calculated by shifting max(SRTT, latest_rtt) to the right
- // by reordering_shift.
- int reordering_shift_;
-
- DISALLOW_COPY_AND_ASSIGN(GeneralLossAlgorithm);
-};
-
-} // namespace net
-
-#endif // NET_QUIC_CONGESTION_CONTROL_GENERAL_LOSS_ALGORITHM_H_
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