| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "net/quic/quic_time.h" |
| |
| #include <limits> |
| |
| #include "base/logging.h" |
| |
| namespace net { |
| |
| uint64_t QuicWallTime::ToUNIXSeconds() const { |
| return microseconds_ / 1000000; |
| } |
| |
| uint64_t QuicWallTime::ToUNIXMicroseconds() const { |
| return microseconds_; |
| } |
| |
| bool QuicWallTime::IsAfter(QuicWallTime other) const { |
| return microseconds_ > other.microseconds_; |
| } |
| |
| bool QuicWallTime::IsBefore(QuicWallTime other) const { |
| return microseconds_ < other.microseconds_; |
| } |
| |
| bool QuicWallTime::IsZero() const { |
| return microseconds_ == 0; |
| } |
| |
| QuicTime::Delta QuicWallTime::AbsoluteDifference(QuicWallTime other) const { |
| uint64_t d; |
| |
| if (microseconds_ > other.microseconds_) { |
| d = microseconds_ - other.microseconds_; |
| } else { |
| d = other.microseconds_ - microseconds_; |
| } |
| |
| if (d > static_cast<uint64_t>(std::numeric_limits<int64_t>::max())) { |
| d = std::numeric_limits<int64_t>::max(); |
| } |
| return QuicTime::Delta::FromMicroseconds(d); |
| } |
| |
| QuicWallTime QuicWallTime::Add(QuicTime::Delta delta) const { |
| uint64_t microseconds = microseconds_ + delta.ToMicroseconds(); |
| if (microseconds < microseconds_) { |
| microseconds = std::numeric_limits<uint64_t>::max(); |
| } |
| return QuicWallTime(microseconds); |
| } |
| |
| // TODO(ianswett) Test this. |
| QuicWallTime QuicWallTime::Subtract(QuicTime::Delta delta) const { |
| uint64_t microseconds = microseconds_ - delta.ToMicroseconds(); |
| if (microseconds > microseconds_) { |
| microseconds = 0; |
| } |
| return QuicWallTime(microseconds); |
| } |
| |
| } // namespace net |