/* Low-level functions for atomic operations. Copyright (C) 2000 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 Library General Public License as published by the Free Software Foundation; either version 2 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef _BITS_ATOMICITY_H #define _BITS_ATOMICITY_H 1 #include typedef int _Atomic_word; static inline _Atomic_word __attribute__ ((__unused__)) __exchange_and_add (volatile _Atomic_word *__mem, int __val) { return __sync_fetch_and_add (__mem, __val); } static inline void __attribute__ ((__unused__)) __atomic_add (volatile _Atomic_word* __mem, int __val) { __sync_fetch_and_add (__mem, __val); } static inline int __attribute__ ((__unused__)) __compare_and_swap (volatile long *__p, long __oldval, long __newval) { return __sync_bool_compare_and_swap (__p, __oldval, __newval); } #endif /* atomicity.h */