time/setitimer.c

   1 /* Copyright (C) 1991-2020 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    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <stddef.h>
  19 #include <errno.h>
  20 #include <sys/time.h>
  21
  22 /* Set the timer WHICH to *NEW.  If OLD is not NULL,
  23    set *OLD to the old value of timer WHICH.
  24    Returns 0 on success, -1 on errors.  */
  25 int
  26 __setitimer (enum __itimer_which which, const struct itimerval *new,
  27              struct itimerval *old)
  28 {
  29   if (new == NULL)
  30     {
  31       __set_errno (EINVAL);
  32       return -1;
  33     }
  34
  35   __set_errno (ENOSYS);
  36   return -1;
  37 }
  38 stub_warning (setitimer)
  39
  40 weak_alias (__setitimer, setitimer)