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Issue 312553003: Land Recent QUIC Changes. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 6 months ago
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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/quic_stream_sequencer.h" 5 #include "net/quic/quic_stream_sequencer.h"
6 6
7 #include <algorithm> 7 #include <algorithm>
8 #include <limits> 8 #include <limits>
9 9
10 #include "base/logging.h" 10 #include "base/logging.h"
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61 if (!blocked_ && byte_offset == num_bytes_consumed_) { 61 if (!blocked_ && byte_offset == num_bytes_consumed_) {
62 DVLOG(1) << "Processing byte offset " << byte_offset; 62 DVLOG(1) << "Processing byte offset " << byte_offset;
63 size_t bytes_consumed = 0; 63 size_t bytes_consumed = 0;
64 for (size_t i = 0; i < data.Size(); ++i) { 64 for (size_t i = 0; i < data.Size(); ++i) {
65 bytes_consumed += stream_->ProcessRawData( 65 bytes_consumed += stream_->ProcessRawData(
66 static_cast<char*>(data.iovec()[i].iov_base), 66 static_cast<char*>(data.iovec()[i].iov_base),
67 data.iovec()[i].iov_len); 67 data.iovec()[i].iov_len);
68 } 68 }
69 num_bytes_consumed_ += bytes_consumed; 69 num_bytes_consumed_ += bytes_consumed;
70 stream_->AddBytesConsumed(bytes_consumed); 70 stream_->AddBytesConsumed(bytes_consumed);
71 stream_->MaybeSendWindowUpdate();
72 71
73 if (MaybeCloseStream()) { 72 if (MaybeCloseStream()) {
74 return true; 73 return true;
75 } 74 }
76 if (bytes_consumed > data_len) { 75 if (bytes_consumed > data_len) {
77 stream_->Reset(QUIC_ERROR_PROCESSING_STREAM); 76 stream_->Reset(QUIC_ERROR_PROCESSING_STREAM);
78 return false; 77 return false;
79 } else if (bytes_consumed == data_len) { 78 } else if (bytes_consumed == data_len) {
80 FlushBufferedFrames(); 79 FlushBufferedFrames();
81 return true; // it's safe to ack this frame. 80 return true; // it's safe to ack this frame.
82 } else { 81 } else {
83 // Set ourselves up to buffer what's left. 82 // Set ourselves up to buffer what's left.
84 data_len -= bytes_consumed; 83 data_len -= bytes_consumed;
85 data.Consume(bytes_consumed); 84 data.Consume(bytes_consumed);
86 byte_offset += bytes_consumed; 85 byte_offset += bytes_consumed;
87 } 86 }
88 } 87 }
89 88
90 // Buffer any remaining data to be consumed by the stream when ready. 89 // Buffer any remaining data to be consumed by the stream when ready.
91 for (size_t i = 0; i < data.Size(); ++i) { 90 for (size_t i = 0; i < data.Size(); ++i) {
92 DVLOG(1) << "Buffering stream data at offset " << byte_offset; 91 DVLOG(1) << "Buffering stream data at offset " << byte_offset;
93 const iovec& iov = data.iovec()[i]; 92 const iovec& iov = data.iovec()[i];
94 frames_.insert(make_pair( 93 frames_.insert(make_pair(
95 byte_offset, string(static_cast<char*>(iov.iov_base), iov.iov_len))); 94 byte_offset, string(static_cast<char*>(iov.iov_base), iov.iov_len)));
96 byte_offset += iov.iov_len; 95 byte_offset += iov.iov_len;
97 num_bytes_buffered_ += iov.iov_len; 96 num_bytes_buffered_ += iov.iov_len;
98 stream_->AddBytesBuffered(iov.iov_len);
99 } 97 }
100 return true; 98 return true;
101 } 99 }
102 100
103 void QuicStreamSequencer::CloseStreamAtOffset(QuicStreamOffset offset) { 101 void QuicStreamSequencer::CloseStreamAtOffset(QuicStreamOffset offset) {
104 const QuicStreamOffset kMaxOffset = numeric_limits<QuicStreamOffset>::max(); 102 const QuicStreamOffset kMaxOffset = numeric_limits<QuicStreamOffset>::max();
105 103
106 // If we have a scheduled termination or close, any new offset should match 104 // If we have a scheduled termination or close, any new offset should match
107 // it. 105 // it.
108 if (close_offset_ != kMaxOffset && offset != close_offset_) { 106 if (close_offset_ != kMaxOffset && offset != close_offset_) {
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241 } 239 }
242 } 240 }
243 MaybeCloseStream(); 241 MaybeCloseStream();
244 } 242 }
245 243
246 void QuicStreamSequencer::RecordBytesConsumed(size_t bytes_consumed) { 244 void QuicStreamSequencer::RecordBytesConsumed(size_t bytes_consumed) {
247 num_bytes_consumed_ += bytes_consumed; 245 num_bytes_consumed_ += bytes_consumed;
248 num_bytes_buffered_ -= bytes_consumed; 246 num_bytes_buffered_ -= bytes_consumed;
249 247
250 stream_->AddBytesConsumed(bytes_consumed); 248 stream_->AddBytesConsumed(bytes_consumed);
251 stream_->RemoveBytesBuffered(bytes_consumed);
252 stream_->MaybeSendWindowUpdate();
253 } 249 }
254 250
255 } // namespace net 251 } // namespace net
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