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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 #include "net/quic/core/quic_stream_sequencer.h" | 5 #include "net/quic/core/quic_stream_sequencer.h" |
| 6 | 6 |
| 7 #include <algorithm> | 7 #include <algorithm> |
| 8 #include <limits> | 8 #include <limits> |
| 9 #include <string> | 9 #include <string> |
| 10 #include <utility> | 10 #include <utility> |
| 11 | 11 |
| 12 #include "base/format_macros.h" | 12 #include "base/format_macros.h" |
| 13 #include "base/logging.h" | |
| 14 #include "net/quic/core/quic_flags.h" | 13 #include "net/quic/core/quic_flags.h" |
| 15 #include "net/quic/core/quic_packets.h" | 14 #include "net/quic/core/quic_packets.h" |
| 16 #include "net/quic/core/quic_stream.h" | 15 #include "net/quic/core/quic_stream.h" |
| 17 #include "net/quic/core/quic_stream_sequencer_buffer.h" | 16 #include "net/quic/core/quic_stream_sequencer_buffer.h" |
| 18 #include "net/quic/core/quic_utils.h" | 17 #include "net/quic/core/quic_utils.h" |
| 19 #include "net/quic/platform/api/quic_bug_tracker.h" | 18 #include "net/quic/platform/api/quic_bug_tracker.h" |
| 20 #include "net/quic/platform/api/quic_clock.h" | 19 #include "net/quic/platform/api/quic_clock.h" |
| 20 #include "net/quic/platform/api/quic_logging.h" |
| 21 #include "net/quic/platform/api/quic_str_cat.h" | 21 #include "net/quic/platform/api/quic_str_cat.h" |
| 22 | 22 |
| 23 using base::StringPiece; | 23 using base::StringPiece; |
| 24 using std::string; | 24 using std::string; |
| 25 | 25 |
| 26 namespace net { | 26 namespace net { |
| 27 | 27 |
| 28 QuicStreamSequencer::QuicStreamSequencer(QuicStream* quic_stream, | 28 QuicStreamSequencer::QuicStreamSequencer(QuicStream* quic_stream, |
| 29 const QuicClock* clock) | 29 const QuicClock* clock) |
| 30 : stream_(quic_stream), | 30 : stream_(quic_stream), |
| (...skipping 21 matching lines...) Expand all Loading... |
| 52 size_t bytes_written; | 52 size_t bytes_written; |
| 53 string error_details; | 53 string error_details; |
| 54 QuicErrorCode result = buffered_frames_.OnStreamData( | 54 QuicErrorCode result = buffered_frames_.OnStreamData( |
| 55 byte_offset, StringPiece(frame.data_buffer, frame.data_length), | 55 byte_offset, StringPiece(frame.data_buffer, frame.data_length), |
| 56 clock_->ApproximateNow(), &bytes_written, &error_details); | 56 clock_->ApproximateNow(), &bytes_written, &error_details); |
| 57 if (result != QUIC_NO_ERROR) { | 57 if (result != QUIC_NO_ERROR) { |
| 58 string details = QuicStrCat( | 58 string details = QuicStrCat( |
| 59 "Stream ", stream_->id(), ": ", QuicErrorCodeToString(result), ": ", | 59 "Stream ", stream_->id(), ": ", QuicErrorCodeToString(result), ": ", |
| 60 error_details, "\nPeer Address: ", | 60 error_details, "\nPeer Address: ", |
| 61 stream_->PeerAddressOfLatestPacket().ToString()); | 61 stream_->PeerAddressOfLatestPacket().ToString()); |
| 62 DLOG(WARNING) << QuicErrorCodeToString(result); | 62 QUIC_LOG_FIRST_N(WARNING, 50) << QuicErrorCodeToString(result); |
| 63 DLOG(WARNING) << details; | 63 QUIC_LOG_FIRST_N(WARNING, 50) << details; |
| 64 stream_->CloseConnectionWithDetails(result, details); | 64 stream_->CloseConnectionWithDetails(result, details); |
| 65 return; | 65 return; |
| 66 } | 66 } |
| 67 | 67 |
| 68 if (bytes_written == 0) { | 68 if (bytes_written == 0) { |
| 69 ++num_duplicate_frames_received_; | 69 ++num_duplicate_frames_received_; |
| 70 // Silently ignore duplicates. | 70 // Silently ignore duplicates. |
| 71 return; | 71 return; |
| 72 } | 72 } |
| 73 | 73 |
| (...skipping 23 matching lines...) Expand all Loading... |
| 97 close_offset_ = offset; | 97 close_offset_ = offset; |
| 98 | 98 |
| 99 MaybeCloseStream(); | 99 MaybeCloseStream(); |
| 100 } | 100 } |
| 101 | 101 |
| 102 bool QuicStreamSequencer::MaybeCloseStream() { | 102 bool QuicStreamSequencer::MaybeCloseStream() { |
| 103 if (blocked_ || !IsClosed()) { | 103 if (blocked_ || !IsClosed()) { |
| 104 return false; | 104 return false; |
| 105 } | 105 } |
| 106 | 106 |
| 107 DVLOG(1) << "Passing up termination, as we've processed " | 107 QUIC_DVLOG(1) << "Passing up termination, as we've processed " |
| 108 << buffered_frames_.BytesConsumed() << " of " << close_offset_ | 108 << buffered_frames_.BytesConsumed() << " of " << close_offset_ |
| 109 << " bytes."; | 109 << " bytes."; |
| 110 // This will cause the stream to consume the FIN. | 110 // This will cause the stream to consume the FIN. |
| 111 // Technically it's an error if |num_bytes_consumed| isn't exactly | 111 // Technically it's an error if |num_bytes_consumed| isn't exactly |
| 112 // equal to |close_offset|, but error handling seems silly at this point. | 112 // equal to |close_offset|, but error handling seems silly at this point. |
| 113 if (ignore_read_data_) { | 113 if (ignore_read_data_) { |
| 114 // The sequencer is discarding stream data and must notify the stream on | 114 // The sequencer is discarding stream data and must notify the stream on |
| 115 // receipt of a FIN because the consumer won't. | 115 // receipt of a FIN because the consumer won't. |
| 116 stream_->OnFinRead(); | 116 stream_->OnFinRead(); |
| 117 } else { | 117 } else { |
| 118 stream_->OnDataAvailable(); | 118 stream_->OnDataAvailable(); |
| 119 } | 119 } |
| (...skipping 74 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 194 | 194 |
| 195 void QuicStreamSequencer::ReleaseBufferIfEmpty() { | 195 void QuicStreamSequencer::ReleaseBufferIfEmpty() { |
| 196 if (buffered_frames_.Empty()) { | 196 if (buffered_frames_.Empty()) { |
| 197 buffered_frames_.ReleaseWholeBuffer(); | 197 buffered_frames_.ReleaseWholeBuffer(); |
| 198 } | 198 } |
| 199 } | 199 } |
| 200 | 200 |
| 201 void QuicStreamSequencer::FlushBufferedFrames() { | 201 void QuicStreamSequencer::FlushBufferedFrames() { |
| 202 DCHECK(ignore_read_data_); | 202 DCHECK(ignore_read_data_); |
| 203 size_t bytes_flushed = buffered_frames_.FlushBufferedFrames(); | 203 size_t bytes_flushed = buffered_frames_.FlushBufferedFrames(); |
| 204 DVLOG(1) << "Flushing buffered data at offset " | 204 QUIC_DVLOG(1) << "Flushing buffered data at offset " |
| 205 << buffered_frames_.BytesConsumed() << " length " << bytes_flushed | 205 << buffered_frames_.BytesConsumed() << " length " |
| 206 << " for stream " << stream_->id(); | 206 << bytes_flushed << " for stream " << stream_->id(); |
| 207 stream_->AddBytesConsumed(bytes_flushed); | 207 stream_->AddBytesConsumed(bytes_flushed); |
| 208 MaybeCloseStream(); | 208 MaybeCloseStream(); |
| 209 } | 209 } |
| 210 | 210 |
| 211 size_t QuicStreamSequencer::NumBytesBuffered() const { | 211 size_t QuicStreamSequencer::NumBytesBuffered() const { |
| 212 return buffered_frames_.BytesBuffered(); | 212 return buffered_frames_.BytesBuffered(); |
| 213 } | 213 } |
| 214 | 214 |
| 215 QuicStreamOffset QuicStreamSequencer::NumBytesConsumed() const { | 215 QuicStreamOffset QuicStreamSequencer::NumBytesConsumed() const { |
| 216 return buffered_frames_.BytesConsumed(); | 216 return buffered_frames_.BytesConsumed(); |
| 217 } | 217 } |
| 218 | 218 |
| 219 const string QuicStreamSequencer::DebugString() const { | 219 const string QuicStreamSequencer::DebugString() const { |
| 220 // clang-format off | 220 // clang-format off |
| 221 return QuicStrCat("QuicStreamSequencer:", | 221 return QuicStrCat("QuicStreamSequencer:", |
| 222 "\n bytes buffered: ", NumBytesBuffered(), | 222 "\n bytes buffered: ", NumBytesBuffered(), |
| 223 "\n bytes consumed: ", NumBytesConsumed(), | 223 "\n bytes consumed: ", NumBytesConsumed(), |
| 224 "\n has bytes to read: ", HasBytesToRead() ? "true" : "false", | 224 "\n has bytes to read: ", HasBytesToRead() ? "true" : "false", |
| 225 "\n frames received: ", num_frames_received(), | 225 "\n frames received: ", num_frames_received(), |
| 226 "\n close offset bytes: ", close_offset_, | 226 "\n close offset bytes: ", close_offset_, |
| 227 "\n is closed: ", IsClosed() ? "true" : "false"); | 227 "\n is closed: ", IsClosed() ? "true" : "false"); |
| 228 // clang-format on | 228 // clang-format on |
| 229 } | 229 } |
| 230 | 230 |
| 231 } // namespace net | 231 } // namespace net |
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