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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 "base/logging.h" | 5 #include "base/logging.h" |
| 6 #include "base/memory/scoped_ptr.h" | 6 #include "base/memory/scoped_ptr.h" |
| 7 #include "base/stl_util.h" | 7 #include "base/stl_util.h" |
| 8 #include "net/quic/congestion_control/inter_arrival_sender.h" | 8 #include "net/quic/congestion_control/inter_arrival_sender.h" |
| 9 #include "net/quic/test_tools/mock_clock.h" | 9 #include "net/quic/test_tools/mock_clock.h" |
| 10 #include "testing/gtest/include/gtest/gtest.h" | 10 #include "testing/gtest/include/gtest/gtest.h" |
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| 65 feedback_sequence_number_, receive_time)); | 65 feedback_sequence_number_, receive_time)); |
| 66 feedback_sequence_number_++; | 66 feedback_sequence_number_++; |
| 67 | 67 |
| 68 // We need to send feedback for 2 packets since they where sent at the | 68 // We need to send feedback for 2 packets since they where sent at the |
| 69 // same time. | 69 // same time. |
| 70 feedback.inter_arrival.received_packet_times.insert( | 70 feedback.inter_arrival.received_packet_times.insert( |
| 71 std::pair<QuicPacketSequenceNumber, QuicTime>( | 71 std::pair<QuicPacketSequenceNumber, QuicTime>( |
| 72 feedback_sequence_number_, receive_time)); | 72 feedback_sequence_number_, receive_time)); |
| 73 feedback_sequence_number_++; | 73 feedback_sequence_number_++; |
| 74 | 74 |
| 75 sender_.OnIncomingQuicCongestionFeedbackFrame( | 75 sender_.OnIncomingQuicCongestionFeedbackFrame(feedback, send_clock_.Now(), |
| 76 feedback, send_clock_.Now(), QuicBandwidth::Zero(), sent_packets_); | 76 sent_packets_); |
| 77 } | 77 } |
| 78 | 78 |
| 79 void SendFeedbackMessageNPackets(int n, | 79 void SendFeedbackMessageNPackets(int n, |
| 80 QuicTime::Delta delta_odd, | 80 QuicTime::Delta delta_odd, |
| 81 QuicTime::Delta delta_even) { | 81 QuicTime::Delta delta_even) { |
| 82 QuicCongestionFeedbackFrame feedback; | 82 QuicCongestionFeedbackFrame feedback; |
| 83 feedback.type = kInterArrival; | 83 feedback.type = kInterArrival; |
| 84 feedback.inter_arrival.accumulated_number_of_lost_packets = 0; | 84 feedback.inter_arrival.accumulated_number_of_lost_packets = 0; |
| 85 for (int i = 0; i < n; ++i) { | 85 for (int i = 0; i < n; ++i) { |
| 86 if (feedback_sequence_number_ % 2) { | 86 if (feedback_sequence_number_ % 2) { |
| 87 receive_clock_.AdvanceTime(delta_even); | 87 receive_clock_.AdvanceTime(delta_even); |
| 88 } else { | 88 } else { |
| 89 receive_clock_.AdvanceTime(delta_odd); | 89 receive_clock_.AdvanceTime(delta_odd); |
| 90 } | 90 } |
| 91 QuicTime receive_time = receive_clock_.ApproximateNow(); | 91 QuicTime receive_time = receive_clock_.ApproximateNow(); |
| 92 feedback.inter_arrival.received_packet_times.insert( | 92 feedback.inter_arrival.received_packet_times.insert( |
| 93 std::pair<QuicPacketSequenceNumber, QuicTime>( | 93 std::pair<QuicPacketSequenceNumber, QuicTime>( |
| 94 feedback_sequence_number_, receive_time)); | 94 feedback_sequence_number_, receive_time)); |
| 95 feedback_sequence_number_++; | 95 feedback_sequence_number_++; |
| 96 } | 96 } |
| 97 sender_.OnIncomingQuicCongestionFeedbackFrame(feedback, send_clock_.Now(), | 97 sender_.OnIncomingQuicCongestionFeedbackFrame(feedback, send_clock_.Now(), |
| 98 QuicBandwidth::Zero(), sent_packets_); | 98 sent_packets_); |
| 99 } | 99 } |
| 100 | 100 |
| 101 QuicTime::Delta SenderDeltaSinceStart() { | 101 QuicTime::Delta SenderDeltaSinceStart() { |
| 102 return send_clock_.ApproximateNow().Subtract(send_start_time_); | 102 return send_clock_.ApproximateNow().Subtract(send_start_time_); |
| 103 } | 103 } |
| 104 | 104 |
| 105 const QuicTime::Delta rtt_; | 105 const QuicTime::Delta rtt_; |
| 106 const QuicTime::Delta one_ms_; | 106 const QuicTime::Delta one_ms_; |
| 107 const QuicTime::Delta one_s_; | 107 const QuicTime::Delta one_s_; |
| 108 const QuicTime::Delta nine_ms_; | 108 const QuicTime::Delta nine_ms_; |
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| 556 acked_sequence_number_ += 2; // Create a loss by not acking both packets. | 556 acked_sequence_number_ += 2; // Create a loss by not acking both packets. |
| 557 SendFeedbackMessageNPackets(2, nine_ms_, nine_ms_); | 557 SendFeedbackMessageNPackets(2, nine_ms_, nine_ms_); |
| 558 | 558 |
| 559 // Make sure our bitrate is fixed at the expected_min_bitrate. | 559 // Make sure our bitrate is fixed at the expected_min_bitrate. |
| 560 EXPECT_EQ(expected_min_bitrate, sender_.BandwidthEstimate()); | 560 EXPECT_EQ(expected_min_bitrate, sender_.BandwidthEstimate()); |
| 561 } | 561 } |
| 562 } | 562 } |
| 563 | 563 |
| 564 } // namespace test | 564 } // namespace test |
| 565 } // namespace net | 565 } // namespace net |
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