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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 #ifndef NET_QUIC_QUIC_STREAM_SEQUENCER_H_ | 5 #ifndef NET_QUIC_QUIC_STREAM_SEQUENCER_H_ |
| 6 #define NET_QUIC_QUIC_STREAM_SEQUENCER_H_ | 6 #define NET_QUIC_QUIC_STREAM_SEQUENCER_H_ |
| 7 | 7 |
| 8 #include <map> | 8 #include <map> |
| 9 | 9 |
| 10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
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| 91 // The stream which owns this sequencer. | 91 // The stream which owns this sequencer. |
| 92 ReliableQuicStream* stream_; | 92 ReliableQuicStream* stream_; |
| 93 | 93 |
| 94 // The last data consumed by the stream. | 94 // The last data consumed by the stream. |
| 95 QuicStreamOffset num_bytes_consumed_; | 95 QuicStreamOffset num_bytes_consumed_; |
| 96 | 96 |
| 97 // TODO(alyssar) use something better than strings. | 97 // TODO(alyssar) use something better than strings. |
| 98 typedef map<QuicStreamOffset, string> FrameMap; | 98 typedef map<QuicStreamOffset, string> FrameMap; |
| 99 | 99 |
| 100 // Stores buffered frames (maps from sequence number -> frame data as string). | 100 // Stores buffered frames (maps from sequence number -> frame data as string). |
| 101 FrameMap frames_; | 101 FrameMap buffered_frames_; |
| 102 | 102 |
| 103 // The offset, if any, we got a stream termination for. When this many bytes | 103 // The offset, if any, we got a stream termination for. When this many bytes |
| 104 // have been processed, the sequencer will be closed. | 104 // have been processed, the sequencer will be closed. |
| 105 QuicStreamOffset close_offset_; | 105 QuicStreamOffset close_offset_; |
| 106 | 106 |
| 107 // If true, the sequencer is blocked from passing data to the stream and will | 107 // If true, the sequencer is blocked from passing data to the stream and will |
| 108 // buffer all new incoming data until FlushBufferedFrames is called. | 108 // buffer all new incoming data until FlushBufferedFrames is called. |
| 109 bool blocked_; | 109 bool blocked_; |
| 110 | 110 |
| 111 // Tracks how many bytes the sequencer has buffered. | 111 // Tracks how many bytes the sequencer has buffered. |
| 112 size_t num_bytes_buffered_; | 112 size_t num_bytes_buffered_; |
| 113 | 113 |
| 114 // Count of the number of frames received. | 114 // Count of the number of frames received. |
| 115 int num_frames_received_; | 115 int num_frames_received_; |
| 116 | 116 |
| 117 // Count of the number of duplicate frames received. | 117 // Count of the number of duplicate frames received. |
| 118 int num_duplicate_frames_received_; | 118 int num_duplicate_frames_received_; |
| 119 | 119 |
| 120 DISALLOW_COPY_AND_ASSIGN(QuicStreamSequencer); | 120 DISALLOW_COPY_AND_ASSIGN(QuicStreamSequencer); |
| 121 }; | 121 }; |
| 122 | 122 |
| 123 } // namespace net | 123 } // namespace net |
| 124 | 124 |
| 125 #endif // NET_QUIC_QUIC_STREAM_SEQUENCER_H_ | 125 #endif // NET_QUIC_QUIC_STREAM_SEQUENCER_H_ |
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