1 /* Definitions of user-visible names for spin locks. 2 Copyright (C) 1994-2021 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 #ifndef _BITS_TYPES___PTHREAD_SPINLOCK_T_H 20 #define _BITS_TYPES___PTHREAD_SPINLOCK_T_H 1 21 22 #include <features.h> 23 24 __BEGIN_DECLS 25 26 /* The type of a spin lock object. */ 27 typedef volatile int __pthread_spinlock_t; 28 29 /* Initializer for a spin lock object. */ 30 #define __PTHREAD_SPIN_LOCK_INITIALIZER 0 31 32 __END_DECLS 33 34 #endif /* bits/types/__pthread_spinlock_t.h */ 35