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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_flow_controller.h" | 5 #include "net/quic/quic_flow_controller.h" |
| 6 | 6 |
| 7 #include "base/basictypes.h" | 7 #include "base/basictypes.h" |
| 8 #include "net/quic/quic_connection.h" | 8 #include "net/quic/quic_connection.h" |
| 9 #include "net/quic/quic_flags.h" | 9 #include "net/quic/quic_flags.h" |
| 10 #include "net/quic/quic_protocol.h" | 10 #include "net/quic/quic_protocol.h" |
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| 174 return true; | 174 return true; |
| 175 } | 175 } |
| 176 | 176 |
| 177 void QuicFlowController::Disable() { | 177 void QuicFlowController::Disable() { |
| 178 is_enabled_ = false; | 178 is_enabled_ = false; |
| 179 } | 179 } |
| 180 | 180 |
| 181 bool QuicFlowController::IsEnabled() const { | 181 bool QuicFlowController::IsEnabled() const { |
| 182 bool connection_flow_control_enabled = | 182 bool connection_flow_control_enabled = |
| 183 (id_ == kConnectionLevelId && | 183 (id_ == kConnectionLevelId && |
| 184 FLAGS_enable_quic_connection_flow_control); | 184 FLAGS_enable_quic_connection_flow_control_2); |
| 185 bool stream_flow_control_enabled = | 185 bool stream_flow_control_enabled = |
| 186 (id_ != kConnectionLevelId && | 186 (id_ != kConnectionLevelId && |
| 187 FLAGS_enable_quic_stream_flow_control_2); | 187 FLAGS_enable_quic_stream_flow_control_2); |
| 188 return (connection_flow_control_enabled || stream_flow_control_enabled) && | 188 return (connection_flow_control_enabled || stream_flow_control_enabled) && |
| 189 is_enabled_; | 189 is_enabled_; |
| 190 } | 190 } |
| 191 | 191 |
| 192 bool QuicFlowController::IsBlocked() const { | 192 bool QuicFlowController::IsBlocked() const { |
| 193 return IsEnabled() && SendWindowSize() == 0; | 193 return IsEnabled() && SendWindowSize() == 0; |
| 194 } | 194 } |
| 195 | 195 |
| 196 uint64 QuicFlowController::SendWindowSize() const { | 196 uint64 QuicFlowController::SendWindowSize() const { |
| 197 if (bytes_sent_ > send_window_offset_) { | 197 if (bytes_sent_ > send_window_offset_) { |
| 198 return 0; | 198 return 0; |
| 199 } | 199 } |
| 200 return send_window_offset_ - bytes_sent_; | 200 return send_window_offset_ - bytes_sent_; |
| 201 } | 201 } |
| 202 | 202 |
| 203 } // namespace net | 203 } // namespace net |
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