sysdeps/mach/gettimeofday.c

   1 /* Copyright (C) 1991,1992,1995-1997,2001,2002 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 #undef __gettimeofday
  24
  25 /* Get the current time of day and timezone information,
  26    putting it into *TV and *TZ.  If TZ is NULL, *TZ is not filled.
  27    Returns 0 on success, -1 on errors.  */
  28 int
  29 __gettimeofday (tv, tz)
  30      struct timeval *tv;
  31      struct timezone *tz;
  32 {
  33   kern_return_t err;
  34
  35   if (tz != NULL)
  36     *tz = (struct timezone){0, 0}; /* XXX */
  37
  38   if (err = __host_get_time (__mach_host_self (), (time_value_t *) tv))
  39     {
  40       errno = err;
  41       return -1;
  42     }
  43   return 0;
  44 }
  45
  46 INTDEF(__gettimeofday)
  47 weak_alias (__gettimeofday, gettimeofday)