sysdeps/mach/gettimeofday.c

   1 /* Copyright (C) 1991, 1992, 1995, 1996 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <ansidecl.h>
  20 #include <errno.h>
  21 #include <sys/time.h>
  22 #include <mach.h>
  23
  24 /* Get the current time of day and timezone information,
  25    putting it into *TV and *TZ.  If TZ is NULL, *TZ is not filled.
  26    Returns 0 on success, -1 on errors.  */
  27 int
  28 DEFUN(__gettimeofday, (tv, tz),
  29       struct timeval *tv AND struct timezone *tz)
  30 {
  31   kern_return_t err;
  32
  33   if (tz != NULL)
  34     *tz = (struct timezone){0, 0}; /* XXX */
  35
  36   if (err = __host_get_time (__mach_host_self (), (time_value_t *) tv))
  37     {
  38       errno = err;
  39       return -1;
  40     }
  41   return 0;
  42 }
  43
  44 weak_alias (__gettimeofday, gettimeofday)