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/**************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Installer Framework.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
**
** $QT_END_LICENSE$
**
**************************************************************************/
#include "windows.h"
#include <QDateTime>
#include <chrono>
void FileTimeToDateTime(const FILETIME *source, QDateTime *target)
{
ULARGE_INTEGER store;
store.QuadPart = source->dwHighDateTime;
store.QuadPart = store.QuadPart << 32;
store.QuadPart += source->dwLowDateTime;
const QDateTime tempDateTime(QDate(1601, 1, 1), QTime(0, 0, 0, 0), Qt::UTC);
*target = tempDateTime.addMSecs(store.QuadPart / 10000);
}
void DateTimeToSystemTime(const QDateTime *source, SYSTEMTIME *target)
{
target->wYear = source->date().year();
target->wMonth = source->date().month();
target->wDayOfWeek = source->date().dayOfWeek();
target->wDay = source->date().day();
target->wHour = source->time().hour();
target->wMinute = source->time().minute();
target->wSecond = source->time().second();
target->wMilliseconds = source->time().msec();
}
void DateTimeToFileTime(const QDateTime &dateTime, FILETIME *target)
{
const qint64 nsecs = QDateTime(QDate(1601, 1, 1), QTime(0, 0, 0, 0), Qt::UTC)
.msecsTo(dateTime) * 10000;
target->dwLowDateTime = nsecs;
target->dwHighDateTime = nsecs >> 32;
}
BOOL WINAPI FileTimeToSystemTime(CONST FILETIME *source,SYSTEMTIME *target)
{
QDateTime tempDateTime;
FileTimeToDateTime(source, &tempDateTime);
DateTimeToSystemTime(&tempDateTime, target);
return TRUE;
}
BOOL WINAPI FileTimeToLocalFileTime(CONST FILETIME *source,FILETIME *target)
{
target->dwHighDateTime = source->dwHighDateTime;
target->dwLowDateTime = source->dwLowDateTime;
QDateTime tempDateTime;
FileTimeToDateTime(source, &tempDateTime);
tempDateTime = tempDateTime.toLocalTime();
return TRUE;
}
BOOLEAN WINAPI RtlTimeToSecondsSince1970(const LARGE_INTEGER *Time, DWORD *Seconds)
{
SYSTEMTIME tempSystemTime;
FILETIME fileTime;
fileTime.dwLowDateTime = Time->QuadPart;
fileTime.dwHighDateTime = Time->QuadPart >> 32;
FileTimeToSystemTime(&fileTime, &tempSystemTime);
QDate targetDate(tempSystemTime.wYear, tempSystemTime.wMonth, tempSystemTime.wDay);
QTime targetTime(tempSystemTime.wHour, tempSystemTime.wMinute, tempSystemTime.wSecond, tempSystemTime.wMilliseconds);
QDateTime targetDateTime(targetDate, targetTime, Qt::UTC);
quint64 secsSince1970 = targetDateTime.toMSecsSinceEpoch() / 1000;
*Seconds = secsSince1970;
return TRUE;
}
void WINAPI RtlSecondsSince1970ToFileTime(DWORD Seconds, FILETIME *ft)
{
QDateTime fileTimeStartDate(QDate(1601, 1, 1));
quint64 hnseconds = Seconds;
QDateTime sourceDateTime = QDateTime::fromMSecsSinceEpoch(hnseconds * 1000);
hnseconds = fileTimeStartDate.msecsTo(sourceDateTime);
hnseconds *= 10000;
ft->dwLowDateTime = hnseconds;
ft->dwHighDateTime = hnseconds >> 32;
}
VOID WINAPI GetSystemTime(SYSTEMTIME *st)
{
QDateTime nowDateTime = QDateTime::currentDateTimeUtc();
DateTimeToSystemTime(&nowDateTime, st);
}
VOID WINAPI GetSystemTimeAsFileTime(FILETIME *time)
{
DateTimeToFileTime(QDateTime::currentDateTimeUtc(), time);
}
DWORD WINAPI GetTickCount()
{
using namespace std::chrono;
return duration_cast<milliseconds>(steady_clock::now().time_since_epoch()).count();
}
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