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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 // | 4 // |
| 5 // Manages the packet entropy calculation for both sent and received packets | 5 // Manages the packet entropy calculation for both sent and received packets |
| 6 // for a connection. | 6 // for a connection. |
| 7 | 7 |
| 8 #ifndef NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_ | 8 #ifndef NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_ |
| 9 #define NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_ | 9 #define NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_ |
| 10 | 10 |
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| 25 class NET_EXPORT_PRIVATE QuicReceivedPacketManager : | 25 class NET_EXPORT_PRIVATE QuicReceivedPacketManager : |
| 26 public QuicReceivedEntropyHashCalculatorInterface { | 26 public QuicReceivedEntropyHashCalculatorInterface { |
| 27 public: | 27 public: |
| 28 explicit QuicReceivedPacketManager(CongestionFeedbackType congestion_type); | 28 explicit QuicReceivedPacketManager(CongestionFeedbackType congestion_type); |
| 29 virtual ~QuicReceivedPacketManager(); | 29 virtual ~QuicReceivedPacketManager(); |
| 30 | 30 |
| 31 // Updates the internal state concerning which packets have been received. | 31 // Updates the internal state concerning which packets have been received. |
| 32 // bytes: the packet size in bytes including Quic Headers. | 32 // bytes: the packet size in bytes including Quic Headers. |
| 33 // header: the packet header. | 33 // header: the packet header. |
| 34 // timestamp: the arrival time of the packet. | 34 // timestamp: the arrival time of the packet. |
| 35 // revived: true if the packet was lost and then recovered with help of a | |
| 36 // FEC packet. | |
| 37 void RecordPacketReceived(QuicByteCount bytes, | 35 void RecordPacketReceived(QuicByteCount bytes, |
| 38 const QuicPacketHeader& header, | 36 const QuicPacketHeader& header, |
| 39 QuicTime receipt_time, | 37 QuicTime receipt_time); |
| 40 bool revived); | 38 |
| 39 void RecordPacketRevived(QuicPacketSequenceNumber sequence_number); |
| 41 | 40 |
| 42 // Checks whether |sequence_number| is missing and less than largest observed. | 41 // Checks whether |sequence_number| is missing and less than largest observed. |
| 43 bool IsMissing(QuicPacketSequenceNumber sequence_number); | 42 bool IsMissing(QuicPacketSequenceNumber sequence_number); |
| 44 | 43 |
| 45 // Checks if we're still waiting for the packet with |sequence_number|. | 44 // Checks if we're still waiting for the packet with |sequence_number|. |
| 46 bool IsAwaitingPacket(QuicPacketSequenceNumber sequence_number); | 45 bool IsAwaitingPacket(QuicPacketSequenceNumber sequence_number); |
| 47 | 46 |
| 48 // Update the |received_info| for an outgoing ack. | 47 // Update the |received_info| for an outgoing ack. |
| 49 void UpdateReceivedPacketInfo(ReceivedPacketInfo* received_info, | 48 void UpdateReceivedPacketInfo(ReceivedPacketInfo* received_info, |
| 50 QuicTime approximate_now); | 49 QuicTime approximate_now); |
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| 144 // no sequence numbers have been received since UpdateReceivedPacketInfo. | 143 // no sequence numbers have been received since UpdateReceivedPacketInfo. |
| 145 // Needed for calculating delta_time_largest_observed. | 144 // Needed for calculating delta_time_largest_observed. |
| 146 QuicTime time_largest_observed_; | 145 QuicTime time_largest_observed_; |
| 147 | 146 |
| 148 scoped_ptr<ReceiveAlgorithmInterface> receive_algorithm_; | 147 scoped_ptr<ReceiveAlgorithmInterface> receive_algorithm_; |
| 149 }; | 148 }; |
| 150 | 149 |
| 151 } // namespace net | 150 } // namespace net |
| 152 | 151 |
| 153 #endif // NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_ | 152 #endif // NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_ |
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