| // 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/third_party/quic/core/quic_time.h" |
| |
| #include <cinttypes> |
| #include <cstdlib> |
| #include <limits> |
| |
| #include "net/third_party/quic/platform/api/quic_str_cat.h" |
| #include "net/third_party/quic/platform/api/quic_string.h" |
| |
| namespace quic { |
| |
| QuicString QuicTime::Delta::ToDebugValue() const { |
| const int64_t one_ms = 1000; |
| const int64_t one_s = 1000 * one_ms; |
| |
| int64_t absolute_value = std::abs(time_offset_); |
| |
| // For debugging purposes, always display the value with the highest precision |
| // available. |
| if (absolute_value > one_s && absolute_value % one_s == 0) { |
| return QuicStringPrintf("%" PRId64 "s", time_offset_ / one_s); |
| } |
| if (absolute_value > one_ms && absolute_value % one_ms == 0) { |
| return QuicStringPrintf("%" PRId64 "ms", time_offset_ / one_ms); |
| } |
| return QuicStringPrintf("%" PRId64 "us", time_offset_); |
| } |
| |
| 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 quic |