sysdeps/mach/gettimeofday.c

   1 /* Copyright (C) 1991-2016 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 Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the 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    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <stddef.h>
  20 #include <sys/time.h>
  21 #include <mach.h>
  22
  23 /* Get the current time of day and timezone information,
  24    putting it into *TV and *TZ.  If TZ is NULL, *TZ is not filled.
  25    Returns 0 on success, -1 on errors.  */
  26 int
  27 __gettimeofday (struct timeval *tv, struct timezone *tz)
  28 {
  29   kern_return_t err;
  30
  31   if (tz != NULL)
  32     *tz = (struct timezone){0, 0}; /* XXX */
  33
  34   if (err = __host_get_time (__mach_host_self (), (time_value_t *) tv))
  35     {
  36       errno = err;
  37       return -1;
  38     }
  39   return 0;
  40 }
  41 libc_hidden_def (__gettimeofday)
  42 weak_alias (__gettimeofday, gettimeofday)
  43 libc_hidden_weak (gettimeofday)