1 /* pthread_spin_init -- initialize a spin lock. Generic version.
2 Copyright (C) 2003-2022 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 "pthreadP.h"
20 #include <shlib-compat.h>
21
22 int
__pthread_spin_init(pthread_spinlock_t * lock,int pshared)23 __pthread_spin_init (pthread_spinlock_t *lock, int pshared)
24 {
25 /* Relaxed MO is fine because this is an initializing store. */
26 atomic_store_relaxed (lock, 0);
27 return 0;
28 }
29 versioned_symbol (libc, __pthread_spin_init, pthread_spin_init, GLIBC_2_34);
30
31 #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34)
32 compat_symbol (libpthread, __pthread_spin_init, pthread_spin_init, GLIBC_2_2);
33 #endif
34