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// 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/quiche/src/quic/core/quic_time.h"
#include <cinttypes>
#include <cstdlib>
#include <limits>
#include <string>
#include "net/third_party/quiche/src/quic/platform/api/quic_str_cat.h"
namespace quic {
std::string QuicTime::Delta::ToDebuggingValue() 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