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1/* Initialize a semaphore. Generic version.
2 Copyright (C) 2005-2019 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 <http://www.gnu.org/licenses/>. */
18
19#include <semaphore.h>
20#include <errno.h>
21
22#include <pt-internal.h>
23
24int
25__sem_init (sem_t *sem, int pshared, unsigned value)
26{
27 if (pshared != 0)
28 {
29 errno = EOPNOTSUPP;
30 return -1;
31 }
32
33#ifdef SEM_VALUE_MAX
34 if (value > SEM_VALUE_MAX)
35 {
36 errno = EINVAL;
37 return -1;
38 }
39#endif
40
41 *sem = (sem_t) __SEMAPHORE_INITIALIZER (pshared, value);
42 return 0;
43}
44
45strong_alias (__sem_init, sem_init);
46

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