about summary refs log tree commit diff
path: root/sysdeps/htl/sem-init.c
blob: b05534e793743a2eb46e5776273fe1e7b3ca9a27 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
/* Initialize a semaphore.  Generic version.
   Copyright (C) 2005-2018 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library;  if not, see
   <http://www.gnu.org/licenses/>.  */

#include <semaphore.h>
#include <errno.h>

#include <pt-internal.h>

int
__sem_init (sem_t *sem, int pshared, unsigned value)
{
  if (pshared != 0)
    {
      errno = EOPNOTSUPP;
      return -1;
    }

#ifdef SEM_VALUE_MAX
  if (value > SEM_VALUE_MAX)
    {
      errno = EINVAL;
      return -1;
    }
#endif

  *sem = (sem_t) __SEMAPHORE_INITIALIZER (pshared, value);
  return 0;
}

strong_alias (__sem_init, sem_init);