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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 // Responsible for generating packets on behalf of a QuicConnection. | 5 // Responsible for generating packets on behalf of a QuicConnection. |
6 // Packets are serialized just-in-time. Control frames are queued. | 6 // Packets are serialized just-in-time. Control frames are queued. |
7 // Ack and Feedback frames will be requested from the Connection | 7 // Ack and Feedback frames will be requested from the Connection |
8 // just-in-time. When a packet needs to be sent, the Generator | 8 // just-in-time. When a packet needs to be sent, the Generator |
9 // will serialize a packet and pass it to QuicConnection::SendOrQueuePacket() | 9 // will serialize a packet and pass it to QuicConnection::SendOrQueuePacket() |
10 // | 10 // |
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46 // mode, we should probably set a timer so that several independent | 46 // mode, we should probably set a timer so that several independent |
47 // operations can be grouped into the same FEC group. | 47 // operations can be grouped into the same FEC group. |
48 // | 48 // |
49 // When an FEC packet is generated, it will be send to the Delegate, | 49 // When an FEC packet is generated, it will be send to the Delegate, |
50 // even if the Delegate has become unwritable after handling the | 50 // even if the Delegate has become unwritable after handling the |
51 // data packet immediately proceeding the FEC packet. | 51 // data packet immediately proceeding the FEC packet. |
52 | 52 |
53 #ifndef NET_QUIC_QUIC_PACKET_GENERATOR_H_ | 53 #ifndef NET_QUIC_QUIC_PACKET_GENERATOR_H_ |
54 #define NET_QUIC_QUIC_PACKET_GENERATOR_H_ | 54 #define NET_QUIC_QUIC_PACKET_GENERATOR_H_ |
55 | 55 |
| 56 #include <stddef.h> |
| 57 #include <stdint.h> |
| 58 |
56 #include <list> | 59 #include <list> |
57 | 60 |
| 61 #include "base/macros.h" |
58 #include "net/quic/quic_packet_creator.h" | 62 #include "net/quic/quic_packet_creator.h" |
59 #include "net/quic/quic_sent_packet_manager.h" | 63 #include "net/quic/quic_sent_packet_manager.h" |
60 #include "net/quic/quic_types.h" | 64 #include "net/quic/quic_types.h" |
61 | 65 |
62 namespace net { | 66 namespace net { |
63 | 67 |
64 namespace test { | 68 namespace test { |
65 class QuicPacketGeneratorPeer; | 69 class QuicPacketGeneratorPeer; |
66 } // namespace test | 70 } // namespace test |
67 | 71 |
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149 QuicPacketNumberLength original_length, | 153 QuicPacketNumberLength original_length, |
150 char* buffer, | 154 char* buffer, |
151 size_t buffer_len); | 155 size_t buffer_len); |
152 | 156 |
153 // Update the packet number length to use in future packets as soon as it | 157 // Update the packet number length to use in future packets as soon as it |
154 // can be safely changed. | 158 // can be safely changed. |
155 void UpdateSequenceNumberLength(QuicPacketNumber least_packet_awaited_by_peer, | 159 void UpdateSequenceNumberLength(QuicPacketNumber least_packet_awaited_by_peer, |
156 QuicPacketCount max_packets_in_flight); | 160 QuicPacketCount max_packets_in_flight); |
157 | 161 |
158 // Set the minimum number of bytes for the connection id length; | 162 // Set the minimum number of bytes for the connection id length; |
159 void SetConnectionIdLength(uint32 length); | 163 void SetConnectionIdLength(uint32_t length); |
160 | 164 |
161 // Called when the FEC alarm fires. | 165 // Called when the FEC alarm fires. |
162 void OnFecTimeout(); | 166 void OnFecTimeout(); |
163 | 167 |
164 // Called after sending |packet_number| to determine whether an FEC alarm | 168 // Called after sending |packet_number| to determine whether an FEC alarm |
165 // should be set for sending out an FEC packet. Returns a positive and finite | 169 // should be set for sending out an FEC packet. Returns a positive and finite |
166 // timeout if an FEC alarm should be set, and infinite if no alarm should be | 170 // timeout if an FEC alarm should be set, and infinite if no alarm should be |
167 // set. OnFecTimeout should be called to send the FEC packet when the alarm | 171 // set. OnFecTimeout should be called to send the FEC packet when the alarm |
168 // fires. | 172 // fires. |
169 QuicTime::Delta GetFecTimeout(QuicPacketNumber packet_number); | 173 QuicTime::Delta GetFecTimeout(QuicPacketNumber packet_number); |
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243 // the maximum size we are actually using now, if we are in the middle of the | 247 // the maximum size we are actually using now, if we are in the middle of the |
244 // packet. | 248 // packet. |
245 QuicByteCount max_packet_length_; | 249 QuicByteCount max_packet_length_; |
246 | 250 |
247 DISALLOW_COPY_AND_ASSIGN(QuicPacketGenerator); | 251 DISALLOW_COPY_AND_ASSIGN(QuicPacketGenerator); |
248 }; | 252 }; |
249 | 253 |
250 } // namespace net | 254 } // namespace net |
251 | 255 |
252 #endif // NET_QUIC_QUIC_PACKET_GENERATOR_H_ | 256 #endif // NET_QUIC_QUIC_PACKET_GENERATOR_H_ |
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