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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 #ifndef NET_QUIC_CORE_QUIC_UNACKED_PACKET_MAP_H_ | 5 #ifndef NET_QUIC_CORE_QUIC_UNACKED_PACKET_MAP_H_ |
| 6 #define NET_QUIC_CORE_QUIC_UNACKED_PACKET_MAP_H_ | 6 #define NET_QUIC_CORE_QUIC_UNACKED_PACKET_MAP_H_ |
| 7 | 7 |
| 8 #include <stddef.h> | 8 #include <stddef.h> |
| 9 | 9 |
| 10 #include <deque> | 10 #include <deque> |
| 11 | 11 |
| 12 #include "base/macros.h" | 12 #include "base/macros.h" |
| 13 #include "net/base/net_export.h" | |
| 14 #include "net/quic/core/quic_packets.h" | 13 #include "net/quic/core/quic_packets.h" |
| 15 #include "net/quic/core/quic_transmission_info.h" | 14 #include "net/quic/core/quic_transmission_info.h" |
| 15 #include "net/quic/platform/api/quic_export.h" |
| 16 | 16 |
| 17 namespace net { | 17 namespace net { |
| 18 | 18 |
| 19 // Class which tracks unacked packets for three purposes: | 19 // Class which tracks unacked packets for three purposes: |
| 20 // 1) Track retransmittable data, including multiple transmissions of frames. | 20 // 1) Track retransmittable data, including multiple transmissions of frames. |
| 21 // 2) Track packets and bytes in flight for congestion control. | 21 // 2) Track packets and bytes in flight for congestion control. |
| 22 // 3) Track sent time of packets to provide RTT measurements from acks. | 22 // 3) Track sent time of packets to provide RTT measurements from acks. |
| 23 class NET_EXPORT_PRIVATE QuicUnackedPacketMap { | 23 class QUIC_EXPORT_PRIVATE QuicUnackedPacketMap { |
| 24 public: | 24 public: |
| 25 QuicUnackedPacketMap(); | 25 QuicUnackedPacketMap(); |
| 26 ~QuicUnackedPacketMap(); | 26 ~QuicUnackedPacketMap(); |
| 27 | 27 |
| 28 // Adds |serialized_packet| to the map and marks it as sent at |sent_time|. | 28 // Adds |serialized_packet| to the map and marks it as sent at |sent_time|. |
| 29 // Marks the packet as in flight if |set_in_flight| is true. | 29 // Marks the packet as in flight if |set_in_flight| is true. |
| 30 // Packets marked as in flight are expected to be marked as missing when they | 30 // Packets marked as in flight are expected to be marked as missing when they |
| 31 // don't arrive, indicating the need for retransmission. | 31 // don't arrive, indicating the need for retransmission. |
| 32 // |old_packet_number| is the packet number of the previous transmission, | 32 // |old_packet_number| is the packet number of the previous transmission, |
| 33 // or 0 if there was none. | 33 // or 0 if there was none. |
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| 194 QuicByteCount bytes_in_flight_; | 194 QuicByteCount bytes_in_flight_; |
| 195 // Number of retransmittable crypto handshake packets. | 195 // Number of retransmittable crypto handshake packets. |
| 196 size_t pending_crypto_packet_count_; | 196 size_t pending_crypto_packet_count_; |
| 197 | 197 |
| 198 DISALLOW_COPY_AND_ASSIGN(QuicUnackedPacketMap); | 198 DISALLOW_COPY_AND_ASSIGN(QuicUnackedPacketMap); |
| 199 }; | 199 }; |
| 200 | 200 |
| 201 } // namespace net | 201 } // namespace net |
| 202 | 202 |
| 203 #endif // NET_QUIC_CORE_QUIC_UNACKED_PACKET_MAP_H_ | 203 #endif // NET_QUIC_CORE_QUIC_UNACKED_PACKET_MAP_H_ |
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