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Side by Side Diff: net/quic/congestion_control/tcp_cubic_sender.cc

Issue 1535363003: Switch to standard integer types in net/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: stddef Created 5 years 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/congestion_control/tcp_cubic_sender.h" 5 #include "net/quic/congestion_control/tcp_cubic_sender.h"
6 6
7 #include <algorithm> 7 #include <algorithm>
8 8
9 #include "base/metrics/histogram_macros.h" 9 #include "base/metrics/histogram_macros.h"
10 #include "net/quic/congestion_control/prr_sender.h" 10 #include "net/quic/congestion_control/prr_sender.h"
11 #include "net/quic/congestion_control/rtt_stats.h" 11 #include "net/quic/congestion_control/rtt_stats.h"
12 #include "net/quic/crypto/crypto_protocol.h" 12 #include "net/quic/crypto/crypto_protocol.h"
13 #include "net/quic/proto/cached_network_parameters.pb.h" 13 #include "net/quic/proto/cached_network_parameters.pb.h"
14 #include "net/quic/quic_flags.h" 14 #include "net/quic/quic_flags.h"
15 15
16 using std::max; 16 using std::max;
17 using std::min; 17 using std::min;
18 18
19 namespace net { 19 namespace net {
20 20
21 namespace { 21 namespace {
22 // Constants based on TCP defaults. 22 // Constants based on TCP defaults.
23 // The minimum cwnd based on RFC 3782 (TCP NewReno) for cwnd reductions on a 23 // The minimum cwnd based on RFC 3782 (TCP NewReno) for cwnd reductions on a
24 // fast retransmission. The cwnd after a timeout is still 1. 24 // fast retransmission. The cwnd after a timeout is still 1.
25 const QuicPacketCount kDefaultMinimumCongestionWindow = 2; 25 const QuicPacketCount kDefaultMinimumCongestionWindow = 2;
26 const QuicByteCount kMaxBurstBytes = 3 * kDefaultTCPMSS; 26 const QuicByteCount kMaxBurstBytes = 3 * kDefaultTCPMSS;
27 const float kRenoBeta = 0.7f; // Reno backoff factor. 27 const float kRenoBeta = 0.7f; // Reno backoff factor.
28 const uint32 kDefaultNumConnections = 2; // N-connection emulation. 28 const uint32_t kDefaultNumConnections = 2; // N-connection emulation.
29 } // namespace 29 } // namespace
30 30
31 TcpCubicSender::TcpCubicSender(const QuicClock* clock, 31 TcpCubicSender::TcpCubicSender(const QuicClock* clock,
32 const RttStats* rtt_stats, 32 const RttStats* rtt_stats,
33 bool reno, 33 bool reno,
34 QuicPacketCount initial_tcp_congestion_window, 34 QuicPacketCount initial_tcp_congestion_window,
35 QuicPacketCount max_tcp_congestion_window, 35 QuicPacketCount max_tcp_congestion_window,
36 QuicConnectionStats* stats) 36 QuicConnectionStats* stats)
37 : cubic_(clock), 37 : cubic_(clock),
38 rtt_stats_(rtt_stats), 38 rtt_stats_(rtt_stats),
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374 slowstart_threshold_ = initial_max_tcp_congestion_window_; 374 slowstart_threshold_ = initial_max_tcp_congestion_window_;
375 last_cutback_exited_slowstart_ = false; 375 last_cutback_exited_slowstart_ = false;
376 max_tcp_congestion_window_ = initial_max_tcp_congestion_window_; 376 max_tcp_congestion_window_ = initial_max_tcp_congestion_window_;
377 } 377 }
378 378
379 CongestionControlType TcpCubicSender::GetCongestionControlType() const { 379 CongestionControlType TcpCubicSender::GetCongestionControlType() const {
380 return reno_ ? kReno : kCubic; 380 return reno_ ? kReno : kCubic;
381 } 381 }
382 382
383 } // namespace net 383 } // namespace net
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