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/*
* Copyright (C) 2012, 2014 Patrick Gansterer <paroga@paroga.com>
* Copyright (C) 2012 the V8 project authors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include <wtf/GregorianDateTime.h>
#include <wtf/DateMath.h>
#if OS(WINDOWS)
#include <windows.h>
#else
#include <time.h>
#endif
namespace WTF {
GregorianDateTime::GregorianDateTime(double ms, LocalTimeOffset localTime)
{
if (std::isfinite(ms)) {
WTF::Int64Milliseconds timeClipped(static_cast<int64_t>(ms));
int32_t days = msToDays(timeClipped);
int32_t timeInDayMS = timeInDay(timeClipped, days);
auto [year, month, day] = yearMonthDayFromDays(days);
int32_t hour = timeInDayMS / (60 * 60 * 1000);
int32_t minute = (timeInDayMS / (60 * 1000)) % 60;
int32_t second = (timeInDayMS / 1000) % 60;
setSecond(second);
setMinute(minute);
setHour(hour);
setWeekDay(WTF::weekDay(days));
setYearDay(dayInYear(year, month, day));
setMonthDay(day);
setMonth(month);
setYear(year);
}
setIsDST(localTime.isDST);
setUTCOffsetInMinute(localTime.offset / WTF::Int64Milliseconds::msPerMinute);
}
void GregorianDateTime::setToCurrentLocalTime()
{
#if OS(WINDOWS)
SYSTEMTIME systemTime;
GetLocalTime(&systemTime);
TIME_ZONE_INFORMATION timeZoneInformation;
DWORD timeZoneId = GetTimeZoneInformation(&timeZoneInformation);
LONG bias = 0;
if (timeZoneId != TIME_ZONE_ID_INVALID) {
bias = timeZoneInformation.Bias;
if (timeZoneId == TIME_ZONE_ID_DAYLIGHT)
bias += timeZoneInformation.DaylightBias;
else if ((timeZoneId == TIME_ZONE_ID_STANDARD) || (timeZoneId == TIME_ZONE_ID_UNKNOWN))
bias += timeZoneInformation.StandardBias;
else
ASSERT(0);
}
m_year = systemTime.wYear;
m_month = systemTime.wMonth - 1;
m_monthDay = systemTime.wDay;
m_yearDay = dayInYear(m_year, m_month, m_monthDay);
m_weekDay = systemTime.wDayOfWeek;
m_hour = systemTime.wHour;
m_minute = systemTime.wMinute;
m_second = systemTime.wSecond;
m_utcOffsetInMinute = -bias;
m_isDST = timeZoneId == TIME_ZONE_ID_DAYLIGHT ? 1 : 0;
#else
tm localTM;
time_t localTime = time(0);
#if HAVE(LOCALTIME_R)
localtime_r(&localTime, &localTM);
#else
localtime_s(&localTime, &localTM);
#endif
m_year = localTM.tm_year + 1900;
m_month = localTM.tm_mon;
m_monthDay = localTM.tm_mday;
m_yearDay = localTM.tm_yday;
m_weekDay = localTM.tm_wday;
m_hour = localTM.tm_hour;
m_minute = localTM.tm_min;
m_second = localTM.tm_sec;
m_isDST = localTM.tm_isdst;
#if HAVE(TM_GMTOFF)
m_utcOffsetInMinute = localTM.tm_gmtoff / secondsPerMinute;
#else
m_utcOffsetInMinute = calculateLocalTimeOffset(localTime * msPerSecond).offset / msPerMinute;
#endif
#endif
}
} // namespace WTF
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