Timehelper.cpp

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/*
 * Hydrogen
 * Copyright(c) 2002-2008 by Alex >Comix< Cominu [comix@users.sourceforge.net]
 * Copyright(c) 2008-2024 The hydrogen development team [hydrogen-devel@lists.sourceforge.net]
 *
 * http://www.hydrogen-music.org
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY, without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
 
#ifdef WIN32
 
#include <time.h>
#include "Timehelper.h"
 
 
int gettimeofday(struct timeval *tv, struct timezone *tz)
{
        FILETIME ft;
        unsigned __int64 tmpres = 0;
        static int tzflag;
 
        if (NULL != tv)
        {
                GetSystemTimeAsFileTime(&ft);
 
                tmpres |= ft.dwHighDateTime;
                tmpres <<= 32;
                tmpres |= ft.dwLowDateTime;
 
                /*converting file time to unix epoch*/
                tmpres /= 10;  /*convert into microseconds*/
                tmpres -= DELTA_EPOCH_IN_MICROSECS;
                tv->tv_sec = (long)(tmpres / 1000000UL);
                tv->tv_usec = (long)(tmpres % 1000000UL);
        }
 
        if (NULL != tz)
        {
                if (!tzflag)
                {
                        _tzset();
                        tzflag++;
                }
                tz->tz_minuteswest = _timezone / 60;
                tz->tz_dsttime = _daylight;
        }
 
        return 0;
}
 
#endif