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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_ |
| 11 #define NET_QUIC_QUIC_PACKET_CREATOR_H_ | 11 #define NET_QUIC_QUIC_PACKET_CREATOR_H_ |
| 12 | 12 |
| 13 #include <stddef.h> | 13 #include <stddef.h> |
| 14 | 14 |
| 15 #include <memory> | 15 #include <memory> |
| 16 #include <string> | 16 #include <string> |
| 17 #include <unordered_map> | 17 #include <unordered_map> |
| 18 #include <utility> | 18 #include <utility> |
| 19 #include <vector> | 19 #include <vector> |
| 20 | 20 |
| 21 #include "base/macros.h" | 21 #include "base/macros.h" |
| 22 #include "base/strings/string_piece.h" | 22 #include "base/strings/string_piece.h" |
| 23 #include "net/base/net_export.h" | 23 #include "net/base/net_export.h" |
| 24 #include "net/quic/core/quic_connection_close_delegate_interface.h" | 24 #include "net/quic/core/quic_connection_close_delegate_interface.h" |
| 25 #include "net/quic/core/quic_framer.h" | 25 #include "net/quic/core/quic_framer.h" |
| 26 #include "net/quic/core/quic_iovector.h" | 26 #include "net/quic/core/quic_iovector.h" |
| 27 #include "net/quic/core/quic_packets.h" | 27 #include "net/quic/core/quic_packets.h" |
| 28 #include "net/quic/core/quic_pending_retransmission.h" |
| 28 | 29 |
| 29 namespace net { | 30 namespace net { |
| 30 namespace test { | 31 namespace test { |
| 31 class QuicPacketCreatorPeer; | 32 class QuicPacketCreatorPeer; |
| 32 } | 33 } |
| 33 | 34 |
| 34 class NET_EXPORT_PRIVATE QuicPacketCreator { | 35 class NET_EXPORT_PRIVATE QuicPacketCreator { |
| 35 public: | 36 public: |
| 36 // A delegate interface for further processing serialized packet. | 37 // A delegate interface for further processing serialized packet. |
| 37 class NET_EXPORT_PRIVATE DelegateInterface | 38 class NET_EXPORT_PRIVATE DelegateInterface |
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| 99 bool fin, | 100 bool fin, |
| 100 bool needs_full_padding, | 101 bool needs_full_padding, |
| 101 QuicFrame* frame); | 102 QuicFrame* frame); |
| 102 | 103 |
| 103 // Returns true if current open packet can accommodate more stream frames of | 104 // Returns true if current open packet can accommodate more stream frames of |
| 104 // stream |id| at |offset|, false otherwise. | 105 // stream |id| at |offset|, false otherwise. |
| 105 bool HasRoomForStreamFrame(QuicStreamId id, QuicStreamOffset offset); | 106 bool HasRoomForStreamFrame(QuicStreamId id, QuicStreamOffset offset); |
| 106 | 107 |
| 107 // Re-serializes frames with the original packet's packet number length. | 108 // Re-serializes frames with the original packet's packet number length. |
| 108 // Used for retransmitting packets to ensure they aren't too long. | 109 // Used for retransmitting packets to ensure they aren't too long. |
| 109 void ReserializeAllFrames(const PendingRetransmission& retransmission, | 110 void ReserializeAllFrames(const QuicPendingRetransmission& retransmission, |
| 110 char* buffer, | 111 char* buffer, |
| 111 size_t buffer_len); | 112 size_t buffer_len); |
| 112 | 113 |
| 113 // 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_ |
| 114 // to further process the SerializedPacket. | 115 // to further process the SerializedPacket. |
| 115 void Flush(); | 116 void Flush(); |
| 116 | 117 |
| 117 // Optimized method to create a QuicStreamFrame and serialize it. Adds the | 118 // Optimized method to create a QuicStreamFrame and serialize it. Adds the |
| 118 // QuicStreamFrame to the returned SerializedPacket. Sets | 119 // QuicStreamFrame to the returned SerializedPacket. Sets |
| 119 // |num_bytes_consumed| to the number of bytes consumed to create the | 120 // |num_bytes_consumed| to the number of bytes consumed to create the |
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| 310 | 311 |
| 311 // Map mapping path_id to last sent packet number on the path. | 312 // Map mapping path_id to last sent packet number on the path. |
| 312 std::unordered_map<QuicPathId, QuicPacketNumber> multipath_packet_number_; | 313 std::unordered_map<QuicPathId, QuicPacketNumber> multipath_packet_number_; |
| 313 | 314 |
| 314 DISALLOW_COPY_AND_ASSIGN(QuicPacketCreator); | 315 DISALLOW_COPY_AND_ASSIGN(QuicPacketCreator); |
| 315 }; | 316 }; |
| 316 | 317 |
| 317 } // namespace net | 318 } // namespace net |
| 318 | 319 |
| 319 #endif // NET_QUIC_QUIC_PACKET_CREATOR_H_ | 320 #endif // NET_QUIC_QUIC_PACKET_CREATOR_H_ |
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