rt/clock_nanosleep.c

   1 /* High-resolution sleep with the specified clock.  Stub version.
   2    Copyright (C) 2000-2017 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <time.h>
  21
  22 int
  23 __clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
  24                    struct timespec *rem)
  25 {
  26   if (__builtin_expect (req->tv_nsec, 0) < 0
  27       || __builtin_expect (req->tv_nsec, 0) >= 1000000000)
  28     return EINVAL;
  29
  30   if (flags != TIMER_ABSTIME && flags != 0)
  31     return EINVAL;
  32
  33   /* Not implemented.  */
  34   return ENOSYS;
  35 }
  36 weak_alias (__clock_nanosleep, clock_nanosleep)
  37 stub_warning (clock_nanosleep)