Project import generated by Copybara.
PiperOrigin-RevId: 237361882
Change-Id: I109a68f44db867b20f8c6a7732b0ce657133e52a
diff --git a/quic/core/congestion_control/loss_detection_interface.h b/quic/core/congestion_control/loss_detection_interface.h
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+// 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.
+
+// The pure virtual class for send side loss detection algorithm.
+
+#ifndef QUICHE_QUIC_CORE_CONGESTION_CONTROL_LOSS_DETECTION_INTERFACE_H_
+#define QUICHE_QUIC_CORE_CONGESTION_CONTROL_LOSS_DETECTION_INTERFACE_H_
+
+#include "net/third_party/quiche/src/quic/core/congestion_control/send_algorithm_interface.h"
+#include "net/third_party/quiche/src/quic/core/quic_packets.h"
+#include "net/third_party/quiche/src/quic/core/quic_time.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
+
+namespace quic {
+
+class QuicUnackedPacketMap;
+class RttStats;
+
+class QUIC_EXPORT_PRIVATE LossDetectionInterface {
+ public:
+ virtual ~LossDetectionInterface() {}
+
+ virtual LossDetectionType GetLossDetectionType() const = 0;
+
+ // Called when a new ack arrives or the loss alarm fires.
+ virtual void DetectLosses(const QuicUnackedPacketMap& unacked_packets,
+ QuicTime time,
+ const RttStats& rtt_stats,
+ QuicPacketNumber largest_newly_acked,
+ const AckedPacketVector& packets_acked,
+ LostPacketVector* packets_lost) = 0;
+
+ // Get the time the LossDetectionAlgorithm wants to re-evaluate losses.
+ // Returns QuicTime::Zero if no alarm needs to be set.
+ virtual QuicTime GetLossTimeout() const = 0;
+
+ // Called when a |spurious_retransmission| is detected. The original
+ // transmission must have been caused by DetectLosses.
+ virtual void SpuriousRetransmitDetected(
+ const QuicUnackedPacketMap& unacked_packets,
+ QuicTime time,
+ const RttStats& rtt_stats,
+ QuicPacketNumber spurious_retransmission) = 0;
+};
+
+} // namespace quic
+
+#endif // QUICHE_QUIC_CORE_CONGESTION_CONTROL_LOSS_DETECTION_INTERFACE_H_
