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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/spdy/spdy_stream.h" | 5 #include "net/spdy/spdy_stream.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "base/message_loop.h" | 9 #include "base/message_loop.h" |
10 #include "base/stringprintf.h" | 10 #include "base/stringprintf.h" |
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121 } else { | 121 } else { |
122 delegate_->OnDataReceived(NULL, 0); | 122 delegate_->OnDataReceived(NULL, 0); |
123 session_->CloseStream(stream_id_, net::OK); | 123 session_->CloseStream(stream_id_, net::OK); |
124 // Note: |this| may be deleted after calling CloseStream. | 124 // Note: |this| may be deleted after calling CloseStream. |
125 DCHECK_EQ(buffers.size() - 1, i); | 125 DCHECK_EQ(buffers.size() - 1, i); |
126 } | 126 } |
127 } | 127 } |
128 } | 128 } |
129 | 129 |
130 void SpdyStream::DetachDelegate() { | 130 void SpdyStream::DetachDelegate() { |
131 if (delegate_) | |
132 delegate_->set_chunk_callback(NULL); | |
133 delegate_ = NULL; | 131 delegate_ = NULL; |
134 if (!closed()) | 132 if (!closed()) |
135 Cancel(); | 133 Cancel(); |
136 } | 134 } |
137 | 135 |
138 const linked_ptr<SpdyHeaderBlock>& SpdyStream::spdy_headers() const { | 136 const linked_ptr<SpdyHeaderBlock>& SpdyStream::spdy_headers() const { |
139 return request_; | 137 return request_; |
140 } | 138 } |
141 | 139 |
142 void SpdyStream::set_spdy_headers( | 140 void SpdyStream::set_spdy_headers( |
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158 | 156 |
159 void SpdyStream::AdjustSendWindowSize(int32 delta_window_size) { | 157 void SpdyStream::AdjustSendWindowSize(int32 delta_window_size) { |
160 send_window_size_ += delta_window_size; | 158 send_window_size_ += delta_window_size; |
161 PossiblyResumeIfStalled(); | 159 PossiblyResumeIfStalled(); |
162 } | 160 } |
163 | 161 |
164 void SpdyStream::IncreaseSendWindowSize(int32 delta_window_size) { | 162 void SpdyStream::IncreaseSendWindowSize(int32 delta_window_size) { |
165 DCHECK(session_->is_flow_control_enabled()); | 163 DCHECK(session_->is_flow_control_enabled()); |
166 DCHECK_GE(delta_window_size, 1); | 164 DCHECK_GE(delta_window_size, 1); |
167 | 165 |
| 166 // Ignore late WINDOW_UPDATEs. |
| 167 if (closed()) |
| 168 return; |
| 169 |
168 int32 new_window_size = send_window_size_ + delta_window_size; | 170 int32 new_window_size = send_window_size_ + delta_window_size; |
169 | 171 |
170 // We should ignore WINDOW_UPDATEs received before or after this state, | 172 // It's valid for send_window_size_ to become negative (via an incoming |
171 // since before means we've not written SYN_STREAM yet (i.e. it's too | |
172 // early) and after means we've written a DATA frame with FIN bit. | |
173 if (io_state_ != STATE_SEND_BODY_COMPLETE) | |
174 return; | |
175 | |
176 // it's valid for send_window_size_ to become negative (via an incoming | |
177 // SETTINGS), in which case incoming WINDOW_UPDATEs will eventually make | 173 // SETTINGS), in which case incoming WINDOW_UPDATEs will eventually make |
178 // it positive; however, if send_window_size_ is positive and incoming | 174 // it positive; however, if send_window_size_ is positive and incoming |
179 // WINDOW_UPDATE makes it negative, we have an overflow. | 175 // WINDOW_UPDATE makes it negative, we have an overflow. |
180 if (send_window_size_ > 0 && new_window_size < 0) { | 176 if (send_window_size_ > 0 && new_window_size < 0) { |
181 std::string desc = base::StringPrintf( | 177 std::string desc = base::StringPrintf( |
182 "Received WINDOW_UPDATE [delta: %d] for stream %d overflows " | 178 "Received WINDOW_UPDATE [delta: %d] for stream %d overflows " |
183 "send_window_size_ [current: %d]", delta_window_size, stream_id_, | 179 "send_window_size_ [current: %d]", delta_window_size, stream_id_, |
184 send_window_size_); | 180 send_window_size_); |
185 session_->ResetStream(stream_id_, FLOW_CONTROL_ERROR, desc); | 181 session_->ResetStream(stream_id_, FLOW_CONTROL_ERROR, desc); |
186 return; | 182 return; |
187 } | 183 } |
188 | 184 |
189 send_window_size_ = new_window_size; | 185 send_window_size_ = new_window_size; |
190 | 186 |
191 net_log_.AddEvent( | 187 net_log_.AddEvent( |
192 NetLog::TYPE_SPDY_STREAM_UPDATE_SEND_WINDOW, | 188 NetLog::TYPE_SPDY_STREAM_UPDATE_SEND_WINDOW, |
193 base::Bind(&NetLogSpdyStreamWindowUpdateCallback, | 189 base::Bind(&NetLogSpdyStreamWindowUpdateCallback, |
194 stream_id_, delta_window_size, send_window_size_)); | 190 stream_id_, delta_window_size, send_window_size_)); |
| 191 |
195 PossiblyResumeIfStalled(); | 192 PossiblyResumeIfStalled(); |
196 } | 193 } |
197 | 194 |
198 void SpdyStream::DecreaseSendWindowSize(int32 delta_window_size) { | 195 void SpdyStream::DecreaseSendWindowSize(int32 delta_window_size) { |
199 // we only call this method when sending a frame, therefore | 196 // we only call this method when sending a frame, therefore |
200 // |delta_window_size| should be within the valid frame size range. | 197 // |delta_window_size| should be within the valid frame size range. |
201 DCHECK(session_->is_flow_control_enabled()); | 198 DCHECK(session_->is_flow_control_enabled()); |
202 DCHECK_GE(delta_window_size, 1); | 199 DCHECK_GE(delta_window_size, 1); |
203 DCHECK_LE(delta_window_size, kMaxSpdyFrameChunkSize); | 200 DCHECK_LE(delta_window_size, kMaxSpdyFrameChunkSize); |
204 | 201 |
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427 | 424 |
428 // This function is only called when an entire frame is written. | 425 // This function is only called when an entire frame is written. |
429 void SpdyStream::OnWriteComplete(int bytes) { | 426 void SpdyStream::OnWriteComplete(int bytes) { |
430 DCHECK_LE(0, bytes); | 427 DCHECK_LE(0, bytes); |
431 send_bytes_ += bytes; | 428 send_bytes_ += bytes; |
432 if (cancelled() || closed()) | 429 if (cancelled() || closed()) |
433 return; | 430 return; |
434 DoLoop(bytes); | 431 DoLoop(bytes); |
435 } | 432 } |
436 | 433 |
437 void SpdyStream::OnChunkAvailable() { | |
438 DCHECK(io_state_ == STATE_SEND_HEADERS || io_state_ == STATE_SEND_BODY || | |
439 io_state_ == STATE_SEND_BODY_COMPLETE); | |
440 if (io_state_ == STATE_SEND_BODY) | |
441 OnWriteComplete(0); | |
442 } | |
443 | |
444 int SpdyStream::GetProtocolVersion() const { | 434 int SpdyStream::GetProtocolVersion() const { |
445 return session_->GetProtocolVersion(); | 435 return session_->GetProtocolVersion(); |
446 } | 436 } |
447 | 437 |
448 void SpdyStream::LogStreamError(int status, const std::string& description) { | 438 void SpdyStream::LogStreamError(int status, const std::string& description) { |
449 net_log_.AddEvent(NetLog::TYPE_SPDY_STREAM_ERROR, | 439 net_log_.AddEvent(NetLog::TYPE_SPDY_STREAM_ERROR, |
450 base::Bind(&NetLogSpdyStreamErrorCallback, | 440 base::Bind(&NetLogSpdyStreamErrorCallback, |
451 stream_id_, status, &description)); | 441 stream_id_, status, &description)); |
452 } | 442 } |
453 | 443 |
454 void SpdyStream::OnClose(int status) { | 444 void SpdyStream::OnClose(int status) { |
455 io_state_ = STATE_DONE; | 445 io_state_ = STATE_DONE; |
456 response_status_ = status; | 446 response_status_ = status; |
457 Delegate* delegate = delegate_; | 447 Delegate* delegate = delegate_; |
458 delegate_ = NULL; | 448 delegate_ = NULL; |
459 if (delegate) { | 449 if (delegate) |
460 delegate->set_chunk_callback(NULL); | |
461 delegate->OnClose(status); | 450 delegate->OnClose(status); |
462 } | |
463 } | 451 } |
464 | 452 |
465 void SpdyStream::Cancel() { | 453 void SpdyStream::Cancel() { |
466 if (cancelled()) | 454 if (cancelled()) |
467 return; | 455 return; |
468 | 456 |
469 cancelled_ = true; | 457 cancelled_ = true; |
470 if (session_->IsStreamActive(stream_id_)) | 458 if (session_->IsStreamActive(stream_id_)) |
471 session_->ResetStream(stream_id_, CANCEL, ""); | 459 session_->ResetStream(stream_id_, CANCEL, ""); |
472 } | 460 } |
473 | 461 |
474 void SpdyStream::Close() { | 462 void SpdyStream::Close() { |
475 session_->CloseStream(stream_id_, net::OK); | 463 session_->CloseStream(stream_id_, net::OK); |
476 } | 464 } |
477 | 465 |
478 int SpdyStream::SendRequest(bool has_upload_data) { | 466 int SpdyStream::SendRequest(bool has_upload_data) { |
479 if (delegate_) | |
480 delegate_->set_chunk_callback(this); | |
481 | |
482 // Pushed streams do not send any data, and should always be in STATE_OPEN or | 467 // Pushed streams do not send any data, and should always be in STATE_OPEN or |
483 // STATE_DONE. However, we still want to return IO_PENDING to mimic non-push | 468 // STATE_DONE. However, we still want to return IO_PENDING to mimic non-push |
484 // behavior. | 469 // behavior. |
485 has_upload_data_ = has_upload_data; | 470 has_upload_data_ = has_upload_data; |
486 if (pushed_) { | 471 if (pushed_) { |
487 send_time_ = base::TimeTicks::Now(); | 472 send_time_ = base::TimeTicks::Now(); |
488 DCHECK(!has_upload_data_); | 473 DCHECK(!has_upload_data_); |
489 DCHECK(response_received()); | 474 DCHECK(response_received()); |
490 return ERR_IO_PENDING; | 475 return ERR_IO_PENDING; |
491 } | 476 } |
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695 return OK; | 680 return OK; |
696 } | 681 } |
697 | 682 |
698 io_state_ = STATE_SEND_BODY; | 683 io_state_ = STATE_SEND_BODY; |
699 return OK; | 684 return OK; |
700 } | 685 } |
701 | 686 |
702 // DoSendBody is called to send the optional body for the request. This call | 687 // DoSendBody is called to send the optional body for the request. This call |
703 // will also be called as each write of a chunk of the body completes. | 688 // will also be called as each write of a chunk of the body completes. |
704 int SpdyStream::DoSendBody() { | 689 int SpdyStream::DoSendBody() { |
705 // If we're already in the STATE_SENDING_BODY state, then we've already | 690 // If we're already in the STATE_SEND_BODY state, then we've already |
706 // sent a portion of the body. In that case, we need to first consume | 691 // sent a portion of the body. In that case, we need to first consume |
707 // the bytes written in the body stream. Note that the bytes written is | 692 // the bytes written in the body stream. Note that the bytes written is |
708 // the number of bytes in the frame that were written, only consume the | 693 // the number of bytes in the frame that were written, only consume the |
709 // data portion, of course. | 694 // data portion, of course. |
710 io_state_ = STATE_SEND_BODY_COMPLETE; | 695 io_state_ = STATE_SEND_BODY_COMPLETE; |
711 if (!delegate_) | 696 if (!delegate_) |
712 return ERR_UNEXPECTED; | 697 return ERR_UNEXPECTED; |
713 return delegate_->OnSendBody(); | 698 return delegate_->OnSendBody(); |
714 } | 699 } |
715 | 700 |
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748 UMA_HISTOGRAM_TIMES("Net.SpdyStreamDownloadTime", | 733 UMA_HISTOGRAM_TIMES("Net.SpdyStreamDownloadTime", |
749 recv_last_byte_time_ - recv_first_byte_time_); | 734 recv_last_byte_time_ - recv_first_byte_time_); |
750 UMA_HISTOGRAM_TIMES("Net.SpdyStreamTime", | 735 UMA_HISTOGRAM_TIMES("Net.SpdyStreamTime", |
751 recv_last_byte_time_ - send_time_); | 736 recv_last_byte_time_ - send_time_); |
752 | 737 |
753 UMA_HISTOGRAM_COUNTS("Net.SpdySendBytes", send_bytes_); | 738 UMA_HISTOGRAM_COUNTS("Net.SpdySendBytes", send_bytes_); |
754 UMA_HISTOGRAM_COUNTS("Net.SpdyRecvBytes", recv_bytes_); | 739 UMA_HISTOGRAM_COUNTS("Net.SpdyRecvBytes", recv_bytes_); |
755 } | 740 } |
756 | 741 |
757 } // namespace net | 742 } // namespace net |
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