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// Copyright (c) 2009 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 "base/time.h"
#include "base/string_util.h"
#include "base/sys_string_conversions.h"
#include "base/third_party/nspr/prtime.h"
#include "base/logging.h"
namespace base {
// TimeDelta ------------------------------------------------------------------
int TimeDelta::InDays() const {
return static_cast<int>(delta_ / Time::kMicrosecondsPerDay);
}
int TimeDelta::InHours() const {
return static_cast<int>(delta_ / Time::kMicrosecondsPerHour);
}
int TimeDelta::InMinutes() const {
return static_cast<int>(delta_ / Time::kMicrosecondsPerMinute);
}
double TimeDelta::InSecondsF() const {
return static_cast<double>(delta_) / Time::kMicrosecondsPerSecond;
}
int64 TimeDelta::InSeconds() const {
return delta_ / Time::kMicrosecondsPerSecond;
}
double TimeDelta::InMillisecondsF() const {
return static_cast<double>(delta_) / Time::kMicrosecondsPerMillisecond;
}
int64 TimeDelta::InMilliseconds() const {
return delta_ / Time::kMicrosecondsPerMillisecond;
}
int64 TimeDelta::InMillisecondsRoundedUp() const {
return (delta_ + Time::kMicrosecondsPerMillisecond - 1) /
Time::kMicrosecondsPerMillisecond;
}
int64 TimeDelta::InMicroseconds() const {
return delta_;
}
// Time -----------------------------------------------------------------------
// static
Time Time::FromTimeT(time_t tt) {
if (tt == 0)
return Time(); // Preserve 0 so we can tell it doesn't exist.
return Time((tt * kMicrosecondsPerSecond) + kTimeTToMicrosecondsOffset);
}
time_t Time::ToTimeT() const {
if (us_ == 0)
return 0; // Preserve 0 so we can tell it doesn't exist.
return (us_ - kTimeTToMicrosecondsOffset) / kMicrosecondsPerSecond;
}
// static
Time Time::FromDoubleT(double dt) {
return Time(static_cast<int64>((dt *
static_cast<double>(kMicrosecondsPerSecond)) +
kTimeTToMicrosecondsOffset));
}
double Time::ToDoubleT() const {
if (us_ == 0)
return 0; // Preserve 0 so we can tell it doesn't exist.
return (static_cast<double>(us_ - kTimeTToMicrosecondsOffset) /
static_cast<double>(kMicrosecondsPerSecond));
}
Time Time::LocalMidnight() const {
Exploded exploded;
LocalExplode(&exploded);
exploded.hour = 0;
exploded.minute = 0;
exploded.second = 0;
exploded.millisecond = 0;
return FromLocalExploded(exploded);
}
// static
bool Time::FromString(const wchar_t* time_string, Time* parsed_time) {
DCHECK((time_string != NULL) && (parsed_time != NULL));
std::string ascii_time_string = SysWideToUTF8(time_string);
if (ascii_time_string.length() == 0)
return false;
PRTime result_time = 0;
PRStatus result = PR_ParseTimeString(ascii_time_string.c_str(), PR_FALSE,
&result_time);
if (PR_SUCCESS != result)
return false;
result_time += kTimeTToMicrosecondsOffset;
*parsed_time = Time(result_time);
return true;
}
} // namespace base
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