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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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| 96 // packet number of the largest observed packet. | 96 // packet number of the largest observed packet. |
| 97 QuicPacketNumber largest_observed_; | 97 QuicPacketNumber largest_observed_; |
| 98 | 98 |
| 99 DISALLOW_COPY_AND_ASSIGN(EntropyTracker); | 99 DISALLOW_COPY_AND_ASSIGN(EntropyTracker); |
| 100 }; | 100 }; |
| 101 | 101 |
| 102 explicit QuicReceivedPacketManager(QuicConnectionStats* stats); | 102 explicit QuicReceivedPacketManager(QuicConnectionStats* stats); |
| 103 ~QuicReceivedPacketManager() override; | 103 ~QuicReceivedPacketManager() override; |
| 104 | 104 |
| 105 // Updates the internal state concerning which packets have been received. | 105 // Updates the internal state concerning which packets have been received. |
| 106 // bytes: the packet size in bytes including Quic Headers. | |
| 107 // header: the packet header. | 106 // header: the packet header. |
| 108 // timestamp: the arrival time of the packet. | 107 // timestamp: the arrival time of the packet. |
| 109 virtual void RecordPacketReceived(QuicByteCount bytes, | 108 virtual void RecordPacketReceived(const QuicPacketHeader& header, |
| 110 const QuicPacketHeader& header, | |
| 111 QuicTime receipt_time); | 109 QuicTime receipt_time); |
| 112 | 110 |
| 113 // Checks whether |packet_number| is missing and less than largest observed. | 111 // Checks whether |packet_number| is missing and less than largest observed. |
| 114 virtual bool IsMissing(QuicPacketNumber packet_number); | 112 virtual bool IsMissing(QuicPacketNumber packet_number); |
| 115 | 113 |
| 116 // Checks if we're still waiting for the packet with |packet_number|. | 114 // Checks if we're still waiting for the packet with |packet_number|. |
| 117 virtual bool IsAwaitingPacket(QuicPacketNumber packet_number); | 115 virtual bool IsAwaitingPacket(QuicPacketNumber packet_number); |
| 118 | 116 |
| 119 // Retrieves a frame containing a QuicAckFrame. The ack frame may not be | 117 // Retrieves a frame containing a QuicAckFrame. The ack frame may not be |
| 120 // changed outside QuicReceivedPacketManager and must be serialized before | 118 // changed outside QuicReceivedPacketManager and must be serialized before |
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| 185 QuicTime time_largest_observed_; | 183 QuicTime time_largest_observed_; |
| 186 | 184 |
| 187 QuicConnectionStats* stats_; | 185 QuicConnectionStats* stats_; |
| 188 | 186 |
| 189 DISALLOW_COPY_AND_ASSIGN(QuicReceivedPacketManager); | 187 DISALLOW_COPY_AND_ASSIGN(QuicReceivedPacketManager); |
| 190 }; | 188 }; |
| 191 | 189 |
| 192 } // namespace net | 190 } // namespace net |
| 193 | 191 |
| 194 #endif // NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_ | 192 #endif // NET_QUIC_QUIC_RECEIVED_PACKET_MANAGER_H_ |
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