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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 // Accumulates frames for the next packet until more frames no longer fit or | 5 // Accumulates frames for the next packet until more frames no longer fit or |
| 6 // it's time to create a packet from them. If multipath enabled, only creates | 6 // it's time to create a packet from them. If multipath enabled, only creates |
| 7 // packets on one path at the same time. Currently, next packet number is | 7 // packets on one path at the same time. Currently, next packet number is |
| 8 // tracked per-path. | 8 // tracked per-path. |
| 9 | 9 |
| 10 #ifndef NET_QUIC_QUIC_PACKET_CREATOR_H_ | 10 #ifndef NET_QUIC_QUIC_PACKET_CREATOR_H_ |
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| 207 debug_delegate_ = debug_delegate; | 207 debug_delegate_ = debug_delegate; |
| 208 } | 208 } |
| 209 | 209 |
| 210 private: | 210 private: |
| 211 friend class test::QuicPacketCreatorPeer; | 211 friend class test::QuicPacketCreatorPeer; |
| 212 | 212 |
| 213 static bool ShouldRetransmit(const QuicFrame& frame); | 213 static bool ShouldRetransmit(const QuicFrame& frame); |
| 214 | 214 |
| 215 // Converts a raw payload to a frame which fits into the current open | 215 // Converts a raw payload to a frame which fits into the current open |
| 216 // packet. The payload begins at |iov_offset| into the |iov|. | 216 // packet. The payload begins at |iov_offset| into the |iov|. |
| 217 // Returns the number of bytes consumed from data. | |
| 218 // If data is empty and fin is true, the expected behavior is to consume the | 217 // If data is empty and fin is true, the expected behavior is to consume the |
| 219 // fin but return 0. If any data is consumed, it will be copied into a | 218 // fin but return 0. If any data is consumed, it will be copied into a |
| 220 // new buffer that |frame| will point to and own. | 219 // new buffer that |frame| will point to and own. |
| 221 size_t CreateStreamFrame(QuicStreamId id, | 220 void CreateStreamFrame(QuicStreamId id, |
| 222 QuicIOVector iov, | 221 QuicIOVector iov, |
| 223 size_t iov_offset, | 222 size_t iov_offset, |
| 224 QuicStreamOffset offset, | 223 QuicStreamOffset offset, |
| 225 bool fin, | 224 bool fin, |
| 226 QuicFrame* frame); | 225 QuicFrame* frame); |
| 227 | 226 |
| 228 // Copies |length| bytes from iov starting at offset |iov_offset| into buffer. | 227 // Copies |length| bytes from iov starting at offset |iov_offset| into buffer. |
| 229 // |iov| must be at least iov_offset+length total length and buffer must be | 228 // |iov| must be at least iov_offset+length total length and buffer must be |
| 230 // at least |length| long. | 229 // at least |length| long. |
| 231 static void CopyToBuffer(QuicIOVector iov, | 230 static void CopyToBuffer(QuicIOVector iov, |
| 232 size_t iov_offset, | 231 size_t iov_offset, |
| 233 size_t length, | 232 size_t length, |
| 234 char* buffer); | 233 char* buffer); |
| 235 | 234 |
| 236 // Updates packet number length on packet boundary. | 235 // Updates packet number length on packet boundary. |
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| 299 | 298 |
| 300 // Map mapping path_id to last sent packet number on the path. | 299 // Map mapping path_id to last sent packet number on the path. |
| 301 std::unordered_map<QuicPathId, QuicPacketNumber> multipath_packet_number_; | 300 std::unordered_map<QuicPathId, QuicPacketNumber> multipath_packet_number_; |
| 302 | 301 |
| 303 DISALLOW_COPY_AND_ASSIGN(QuicPacketCreator); | 302 DISALLOW_COPY_AND_ASSIGN(QuicPacketCreator); |
| 304 }; | 303 }; |
| 305 | 304 |
| 306 } // namespace net | 305 } // namespace net |
| 307 | 306 |
| 308 #endif // NET_QUIC_QUIC_PACKET_CREATOR_H_ | 307 #endif // NET_QUIC_QUIC_PACKET_CREATOR_H_ |
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