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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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| 108 // Re-serializes frames with the original packet's packet number length. | 108 // Re-serializes frames with the original packet's packet number length. |
| 109 // Used for retransmitting packets to ensure they aren't too long. | 109 // Used for retransmitting packets to ensure they aren't too long. |
| 110 void ReserializeAllFrames(const PendingRetransmission& retransmission, | 110 void ReserializeAllFrames(const PendingRetransmission& retransmission, |
| 111 char* buffer, | 111 char* buffer, |
| 112 size_t buffer_len); | 112 size_t buffer_len); |
| 113 | 113 |
| 114 // Serializes all added frames into a single packet and invokes the delegate_ | 114 // Serializes all added frames into a single packet and invokes the delegate_ |
| 115 // to further process the SerializedPacket. | 115 // to further process the SerializedPacket. |
| 116 void Flush(); | 116 void Flush(); |
| 117 | 117 |
| 118 // Optimized method to create a QuicStreamFrame, serialize it, and encrypt it | 118 // Optimized method to create a QuicStreamFrame and serialize it. Adds the |
| 119 // into |encrypted_buffer|. Adds the QuicStreamFrame to the returned | 119 // QuicStreamFrame to the returned SerializedPacket. Sets |
| 120 // SerializedPacket. Sets |num_bytes_consumed| to the number of bytes | 120 // |num_bytes_consumed| to the number of bytes consumed to create the |
| 121 // consumed to create the QuicStreamFrame. | 121 // QuicStreamFrame. |
| 122 void CreateAndSerializeStreamFrame(QuicStreamId id, | 122 void CreateAndSerializeStreamFrame(QuicStreamId id, |
| 123 const QuicIOVector& iov, | 123 const QuicIOVector& iov, |
| 124 QuicStreamOffset iov_offset, | 124 QuicStreamOffset iov_offset, |
| 125 QuicStreamOffset stream_offset, | 125 QuicStreamOffset stream_offset, |
| 126 bool fin, | 126 bool fin, |
| 127 QuicAckListenerInterface* listener, | 127 QuicAckListenerInterface* listener, |
| 128 char* encrypted_buffer, | |
| 129 size_t encrypted_buffer_len, | |
| 130 size_t* num_bytes_consumed); | 128 size_t* num_bytes_consumed); |
| 131 | 129 |
| 132 // Returns true if there are frames pending to be serialized. | 130 // Returns true if there are frames pending to be serialized. |
| 133 bool HasPendingFrames() const; | 131 bool HasPendingFrames() const; |
| 134 | 132 |
| 135 // Returns true if there are retransmittable frames pending to be serialized. | 133 // Returns true if there are retransmittable frames pending to be serialized. |
| 136 bool HasPendingRetransmittableFrames() const; | 134 bool HasPendingRetransmittableFrames() const; |
| 137 | 135 |
| 138 // Returns the number of bytes which are available to be used by additional | 136 // Returns the number of bytes which are available to be used by additional |
| 139 // frames in the packet. Since stream frames are slightly smaller when they | 137 // frames in the packet. Since stream frames are slightly smaller when they |
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| 345 | 343 |
| 346 // Map mapping path_id to last sent packet number on the path. | 344 // Map mapping path_id to last sent packet number on the path. |
| 347 std::unordered_map<QuicPathId, QuicPacketNumber> multipath_packet_number_; | 345 std::unordered_map<QuicPathId, QuicPacketNumber> multipath_packet_number_; |
| 348 | 346 |
| 349 DISALLOW_COPY_AND_ASSIGN(QuicPacketCreator); | 347 DISALLOW_COPY_AND_ASSIGN(QuicPacketCreator); |
| 350 }; | 348 }; |
| 351 | 349 |
| 352 } // namespace net | 350 } // namespace net |
| 353 | 351 |
| 354 #endif // NET_QUIC_QUIC_PACKET_CREATOR_H_ | 352 #endif // NET_QUIC_QUIC_PACKET_CREATOR_H_ |
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