nptl/cnd_init.c

   1 /* C11 thread conditional initialization implementation.
   2    Copyright (C) 2018-2019 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <stdalign.h>
  20
  21 #include "thrd_priv.h"
  22
  23 int
  24 cnd_init (cnd_t *cond)
  25 {
  26   _Static_assert (sizeof (cnd_t) == sizeof (pthread_cond_t),
  27                   "(sizeof (cnd_t) != sizeof (pthread_cond_t)");
  28   _Static_assert (alignof (cnd_t) == alignof (pthread_cond_t),
  29                   "alignof (cnd_t) != alignof (pthread_cond_t)");
  30
  31   int err_code = __pthread_cond_init ((pthread_cond_t *)cond, NULL);
  32   return thrd_err_map (err_code);
  33 }