mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 00:31:08 +00:00
46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/* Initialize a semaphore. Generic version.
|
|
Copyright (C) 2005-2020 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
|
|
<https://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);
|