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Issue 1160203003: net: Remove the remaining use of GG_(U)INTn_C macros. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: stdint.h Created 5 years, 6 months ago
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1 // Copyright (c) 2015 The Chromium Authors. All rights reserved. 1 // Copyright (c) 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 #include "net/quic/congestion_control/cubic_bytes.h" 5 #include "net/quic/congestion_control/cubic_bytes.h"
6 6
7 #include <stdint.h>
7 #include <algorithm> 8 #include <algorithm>
8 #include <cmath> 9 #include <cmath>
9 10
10 #include "base/basictypes.h" 11 #include "base/basictypes.h"
11 #include "base/logging.h" 12 #include "base/logging.h"
12 #include "net/quic/quic_protocol.h" 13 #include "net/quic/quic_protocol.h"
13 #include "net/quic/quic_time.h" 14 #include "net/quic/quic_time.h"
14 15
15 using std::max; 16 using std::max;
16 17
17 namespace net { 18 namespace net {
18 19
19 namespace { 20 namespace {
20 21
21 // Constants based on TCP defaults. 22 // Constants based on TCP defaults.
22 // The following constants are in 2^10 fractions of a second instead of ms to 23 // The following constants are in 2^10 fractions of a second instead of ms to
23 // allow a 10 shift right to divide. 24 // allow a 10 shift right to divide.
24 const int kCubeScale = 40; // 1024*1024^3 (first 1024 is from 0.100^3) 25 const int kCubeScale = 40; // 1024*1024^3 (first 1024 is from 0.100^3)
25 // where 0.100 is 100 ms which is the scaling 26 // where 0.100 is 100 ms which is the scaling
26 // round trip time. 27 // round trip time.
27 const int kCubeCongestionWindowScale = 410; 28 const int kCubeCongestionWindowScale = 410;
28 // The cube factor for packets in bytes. 29 // The cube factor for packets in bytes.
29 const uint64 kCubeFactor = (GG_UINT64_C(1) << kCubeScale) / 30 const uint64 kCubeFactor = (UINT64_C(1) << kCubeScale) /
30 kCubeCongestionWindowScale / kDefaultTCPMSS; 31 kCubeCongestionWindowScale / kDefaultTCPMSS;
31 32
32 const uint32 kDefaultNumConnections = 2; 33 const uint32 kDefaultNumConnections = 2;
33 const float kBeta = 0.7f; // Default Cubic backoff factor. 34 const float kBeta = 0.7f; // Default Cubic backoff factor.
34 // Additional backoff factor when loss occurs in the concave part of the Cubic 35 // Additional backoff factor when loss occurs in the concave part of the Cubic
35 // curve. This additional backoff factor is expected to give up bandwidth to 36 // curve. This additional backoff factor is expected to give up bandwidth to
36 // new concurrent flows and speed up convergence. 37 // new concurrent flows and speed up convergence.
37 const float kBetaLastMax = 0.85f; 38 const float kBetaLastMax = 0.85f;
38 39
39 } // namespace 40 } // namespace
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155 // congestion_window, use highest (fastest). 156 // congestion_window, use highest (fastest).
156 if (target_congestion_window < estimated_tcp_congestion_window_) { 157 if (target_congestion_window < estimated_tcp_congestion_window_) {
157 target_congestion_window = estimated_tcp_congestion_window_; 158 target_congestion_window = estimated_tcp_congestion_window_;
158 } 159 }
159 160
160 DVLOG(1) << "Target congestion_window: " << target_congestion_window; 161 DVLOG(1) << "Target congestion_window: " << target_congestion_window;
161 return target_congestion_window; 162 return target_congestion_window;
162 } 163 }
163 164
164 } // namespace net 165 } // namespace net
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