1 /**************************************************************************** 2 * Copyright 2020 Thomas E. Dickey * 3 * Copyright 2008-2010,2014 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 #ifdef WINVER 31 # undef WINVER 32 #endif 33 #define WINVER 0x0501 34 35 #include <curses.priv.h> 36 37 #include <windows.h> 38 39 MODULE_ID("$Id: gettimeofday.c,v 1.6 2020/07/11 21:03:53 tom Exp $") 40 41 #define JAN1970 116444736000000000LL /* the value for 01/01/1970 00:00 */ 42 43 NCURSES_EXPORT(int) 44 gettimeofday(struct timeval *tv, void *tz GCC_UNUSED) 45 { 46 union { 47 FILETIME ft; 48 long long since1601; /* time since 1 Jan 1601 in 100ns units */ 49 } data; 50 51 GetSystemTimeAsFileTime(&data.ft); 52 tv->tv_usec = (long) ((data.since1601 / 10LL) % 1000000LL); 53 tv->tv_sec = (long) ((data.since1601 - JAN1970) / 10000000LL); 54 return (0); 55 } 56