/* * Copyright (c) 2015 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #ifndef _I386_ATOMIC_H_ #define _I386_ATOMIC_H_ #include <i386/smp.h> #if __SMP__ #define memory_order_consume_smp memory_order_consume #define memory_order_acquire_smp memory_order_acquire #define memory_order_release_smp memory_order_release #define memory_order_acq_rel_smp memory_order_acq_rel #define memory_order_seq_cst_smp memory_order_seq_cst #else #define memory_order_consume_smp memory_order_relaxed #define memory_order_acquire_smp memory_order_relaxed #define memory_order_release_smp memory_order_relaxed #define memory_order_acq_rel_smp memory_order_relaxed #define memory_order_seq_cst_smp memory_order_relaxed #endif #ifdef ATOMIC_PRIVATE static boolean_t atomic_compare_exchange(uintptr_t *target, uintptr_t oldval, uintptr_t newval, enum memory_order ord, boolean_t wait) { (void)wait; return __c11_atomic_compare_exchange_strong((_Atomic uintptr_t *)target, &oldval, newval, ord, memory_order_relaxed); } #endif // ATOMIC_PRIVATE #endif // _I386_ATOMIC_H_