quic_time.cc revision 5f1c94371a64b3196d4be9466099bb892df9b88e
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 3// found in the LICENSE file. 4 5#include "net/quic/quic_time.h" 6 7#include "base/logging.h" 8 9namespace net { 10 11// Highest number of microseconds that DateTimeOffset can hold. 12const int64 kQuicInfiniteTimeUs = GG_INT64_C(0x7fffffffffffffff) / 10; 13 14QuicTime::Delta::Delta(base::TimeDelta delta) 15 : delta_(delta) { 16} 17 18// static 19QuicTime::Delta QuicTime::Delta::Zero() { 20 return QuicTime::Delta::FromMicroseconds(0); 21} 22 23// static 24QuicTime::Delta QuicTime::Delta::Infinite() { 25 return QuicTime::Delta::FromMicroseconds(kQuicInfiniteTimeUs); 26} 27 28// static 29QuicTime::Delta QuicTime::Delta::FromSeconds(int64 seconds) { 30 return QuicTime::Delta(base::TimeDelta::FromSeconds(seconds)); 31} 32 33// static 34QuicTime::Delta QuicTime::Delta::FromMilliseconds(int64 ms) { 35 return QuicTime::Delta(base::TimeDelta::FromMilliseconds(ms)); 36} 37 38// static 39QuicTime::Delta QuicTime::Delta::FromMicroseconds(int64 us) { 40 return QuicTime::Delta(base::TimeDelta::FromMicroseconds(us)); 41} 42 43int64 QuicTime::Delta::ToSeconds() const { 44 return delta_.InSeconds(); 45} 46 47int64 QuicTime::Delta::ToMilliseconds() const { 48 return delta_.InMilliseconds(); 49} 50 51int64 QuicTime::Delta::ToMicroseconds() const { 52 return delta_.InMicroseconds(); 53} 54 55QuicTime::Delta QuicTime::Delta::Add(const Delta& delta) const { 56 return QuicTime::Delta::FromMicroseconds(ToMicroseconds() + 57 delta.ToMicroseconds()); 58} 59 60QuicTime::Delta QuicTime::Delta::Subtract(const Delta& delta) const { 61 return QuicTime::Delta::FromMicroseconds(ToMicroseconds() - 62 delta.ToMicroseconds()); 63} 64 65QuicTime::Delta QuicTime::Delta::Multiply(int i) const { 66 return QuicTime::Delta::FromMicroseconds(ToMicroseconds() * i); 67} 68 69QuicTime::Delta QuicTime::Delta::Multiply(double d) const { 70 return QuicTime::Delta::FromMicroseconds(ToMicroseconds() * d); 71} 72 73// static 74QuicTime::Delta QuicTime::Delta::Max(QuicTime::Delta delta1, 75 QuicTime::Delta delta2) { 76 return delta1 < delta2 ? delta2 : delta1; 77} 78 79bool QuicTime::Delta::IsZero() const { 80 return delta_.InMicroseconds() == 0; 81} 82 83bool QuicTime::Delta::IsInfinite() const { 84 return delta_.InMicroseconds() == kQuicInfiniteTimeUs; 85} 86 87// static 88QuicTime QuicTime::Zero() { 89 return QuicTime(base::TimeTicks()); 90} 91 92// static 93QuicTime QuicTime::Infinite() { 94 return QuicTime(base::TimeTicks::FromInternalValue(kQuicInfiniteTimeUs)); 95} 96 97// static 98QuicTime QuicTime::Max(QuicTime time1, QuicTime time2) { 99 return time1 > time2 ? time1 : time2; 100} 101 102QuicTime::QuicTime(base::TimeTicks ticks) 103 : ticks_(ticks) { 104} 105 106int64 QuicTime::ToDebuggingValue() const { 107 return (ticks_ - base::TimeTicks()).InMicroseconds(); 108} 109 110bool QuicTime::IsInitialized() const { 111 return ticks_ != base::TimeTicks(); 112} 113 114QuicTime QuicTime::Add(const Delta& delta) const { 115 return QuicTime(ticks_ + delta.delta_); 116} 117 118QuicTime QuicTime::Subtract(const Delta& delta) const { 119 return QuicTime(ticks_ - delta.delta_); 120} 121 122QuicTime::Delta QuicTime::Subtract(const QuicTime& other) const { 123 return QuicTime::Delta(ticks_ - other.ticks_); 124} 125 126// static 127QuicWallTime QuicWallTime::FromUNIXSeconds(uint64 seconds) { 128 return QuicWallTime(seconds); 129} 130 131// static 132QuicWallTime QuicWallTime::Zero() { 133 return QuicWallTime(0); 134} 135 136uint64 QuicWallTime::ToUNIXSeconds() const { 137 return seconds_; 138} 139 140bool QuicWallTime::IsAfter(QuicWallTime other) const { 141 return seconds_ > other.seconds_; 142} 143 144bool QuicWallTime::IsBefore(QuicWallTime other) const { 145 return seconds_ < other.seconds_; 146} 147 148bool QuicWallTime::IsZero() const { 149 return seconds_ == 0; 150} 151 152QuicTime::Delta QuicWallTime::AbsoluteDifference(QuicWallTime other) const { 153 uint64 d; 154 155 if (seconds_ > other.seconds_) { 156 d = seconds_ - other.seconds_; 157 } else { 158 d = other.seconds_ - seconds_; 159 } 160 161 if (d > static_cast<uint64>(kint64max)) { 162 d = kint64max; 163 } 164 return QuicTime::Delta::FromSeconds(d); 165} 166 167QuicWallTime QuicWallTime::Add(QuicTime::Delta delta) const { 168 uint64 seconds = seconds_ + delta.ToSeconds(); 169 if (seconds < seconds_) { 170 seconds = kuint64max; 171 } 172 return QuicWallTime(seconds); 173} 174 175QuicWallTime QuicWallTime::Subtract(QuicTime::Delta delta) const { 176 uint64 seconds = seconds_ - delta.ToSeconds(); 177 if (seconds > seconds_) { 178 seconds = 0; 179 } 180 return QuicWallTime(seconds); 181} 182 183QuicWallTime::QuicWallTime(uint64 seconds) 184 : seconds_(seconds) { 185} 186 187} // namespace net 188