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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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_NQE_NETWORK_QUALITY_ESTIMATOR_H_ | 5 #ifndef NET_NQE_NETWORK_QUALITY_ESTIMATOR_H_ |
6 #define NET_NQE_NETWORK_QUALITY_ESTIMATOR_H_ | 6 #define NET_NQE_NETWORK_QUALITY_ESTIMATOR_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <map> | 10 #include <map> |
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171 // Notifies NetworkQualityEstimator that the response header of |request| has | 171 // Notifies NetworkQualityEstimator that the response header of |request| has |
172 // been received. | 172 // been received. |
173 void NotifyHeadersReceived(const URLRequest& request); | 173 void NotifyHeadersReceived(const URLRequest& request); |
174 | 174 |
175 // Notifies NetworkQualityEstimator that the headers of |request| are about to | 175 // Notifies NetworkQualityEstimator that the headers of |request| are about to |
176 // be sent. | 176 // be sent. |
177 void NotifyStartTransaction(const URLRequest& request); | 177 void NotifyStartTransaction(const URLRequest& request); |
178 | 178 |
179 // Notifies NetworkQualityEstimator that the response body of |request| has | 179 // Notifies NetworkQualityEstimator that the response body of |request| has |
180 // been received. | 180 // been received. |
181 void NotifyRequestCompleted(const URLRequest& request); | 181 void NotifyRequestCompleted(const URLRequest& request, int net_error); |
182 | 182 |
183 // Notifies NetworkQualityEstimator that |request| will be destroyed. | 183 // Notifies NetworkQualityEstimator that |request| will be destroyed. |
184 void NotifyURLRequestDestroyed(const URLRequest& request); | 184 void NotifyURLRequestDestroyed(const URLRequest& request); |
185 | 185 |
186 // Adds |rtt_observer| to the list of round trip time observers. Must be | 186 // Adds |rtt_observer| to the list of round trip time observers. Must be |
187 // called on the IO thread. | 187 // called on the IO thread. |
188 void AddRTTObserver(RTTObserver* rtt_observer); | 188 void AddRTTObserver(RTTObserver* rtt_observer); |
189 | 189 |
190 // Removes |rtt_observer| from the list of round trip time observers if it | 190 // Removes |rtt_observer| from the list of round trip time observers if it |
191 // is on the list of observers. Must be called on the IO thread. | 191 // is on the list of observers. Must be called on the IO thread. |
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473 // Records the metrics related to external estimate provider. | 473 // Records the metrics related to external estimate provider. |
474 void RecordExternalEstimateProviderMetrics( | 474 void RecordExternalEstimateProviderMetrics( |
475 NQEExternalEstimateProviderStatus status) const; | 475 NQEExternalEstimateProviderStatus status) const; |
476 | 476 |
477 // Returns true if the cached network quality estimate was successfully read. | 477 // Returns true if the cached network quality estimate was successfully read. |
478 bool ReadCachedNetworkQualityEstimate(); | 478 bool ReadCachedNetworkQualityEstimate(); |
479 | 479 |
480 // Records a correlation metric that can be used for computing the correlation | 480 // Records a correlation metric that can be used for computing the correlation |
481 // between HTTP-layer RTT, transport-layer RTT, throughput and the time | 481 // between HTTP-layer RTT, transport-layer RTT, throughput and the time |
482 // taken to complete |request|. | 482 // taken to complete |request|. |
483 void RecordCorrelationMetric(const URLRequest& request) const; | 483 void RecordCorrelationMetric(const URLRequest& request, int net_error) const; |
484 | 484 |
485 // Returns true if transport RTT should be used for computing the effective | 485 // Returns true if transport RTT should be used for computing the effective |
486 // connection type. | 486 // connection type. |
487 bool UseTransportRTT() const; | 487 bool UseTransportRTT() const; |
488 | 488 |
489 // Determines if the requests to local host can be used in estimating the | 489 // Determines if the requests to local host can be used in estimating the |
490 // network quality. Set to true only for tests. | 490 // network quality. Set to true only for tests. |
491 bool use_localhost_requests_; | 491 bool use_localhost_requests_; |
492 | 492 |
493 // Determines if the responses smaller than |kMinTransferSizeInBytes| | 493 // Determines if the responses smaller than |kMinTransferSizeInBytes| |
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625 base::ThreadChecker thread_checker_; | 625 base::ThreadChecker thread_checker_; |
626 | 626 |
627 base::WeakPtrFactory<NetworkQualityEstimator> weak_ptr_factory_; | 627 base::WeakPtrFactory<NetworkQualityEstimator> weak_ptr_factory_; |
628 | 628 |
629 DISALLOW_COPY_AND_ASSIGN(NetworkQualityEstimator); | 629 DISALLOW_COPY_AND_ASSIGN(NetworkQualityEstimator); |
630 }; | 630 }; |
631 | 631 |
632 } // namespace net | 632 } // namespace net |
633 | 633 |
634 #endif // NET_NQE_NETWORK_QUALITY_ESTIMATOR_H_ | 634 #endif // NET_NQE_NETWORK_QUALITY_ESTIMATOR_H_ |
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