cosmopolitan/libc/calls/gettimeofday.c

42 lines
2.5 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ 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; version 2 of the License. │
│ │
│ 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., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/internal.h"
#include "libc/calls/struct/timeval.h"
#include "libc/dce.h"
#include "libc/time/struct/timezone.h"
#include "libc/time/time.h"
/**
* Returns system wall time in microseconds.
*
* @param tv points to timeval that receives result if non-NULL
* @param tz receives UTC timezone if non-NULL
* @return always zero
* @see clock_gettime() for nanosecond precision
* @see strftime() for string formatting
*/
int gettimeofday(struct timeval *tv, struct timezone *tz) {
if (!IsWindows()) {
return gettimeofday$sysv(tv, tz);
} else {
return gettimeofday$nt(tv, tz);
}
}