| /*- |
| * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org> |
| * David Chisnall <theraven@FreeBSD.org> |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * $FreeBSD$ |
| */ |
| |
| #ifndef _STDATOMIC_H_ |
| #define _STDATOMIC_H_ |
| |
| #include <sys/cdefs.h> |
| |
| #if defined(__cplusplus) && __cplusplus >= 201103L && __has_include(<atomic>) |
| # if __has_feature(cxx_atomic) |
| # define _STDATOMIC_HAVE_ATOMIC |
| # endif |
| #endif |
| |
| #ifdef _STDATOMIC_HAVE_ATOMIC |
| |
| /* We have a usable C++ <atomic>; use it instead. */ |
| |
| #include <atomic> |
| |
| #undef _Atomic |
| /* Also defined by <atomic> for gcc. But not used in macros. */ |
| /* Also a clang intrinsic. */ |
| /* Should not be used by client code before this file is */ |
| /* included. The definitions in <atomic> themselves see */ |
| /* the old definition, as they should. */ |
| /* Client code sees the following definition. */ |
| |
| #define _Atomic(t) std::atomic<t> |
| |
| using std::atomic_is_lock_free; |
| using std::atomic_init; |
| using std::atomic_store; |
| using std::atomic_store_explicit; |
| using std::atomic_load; |
| using std::atomic_load_explicit; |
| using std::atomic_exchange; |
| using std::atomic_exchange_explicit; |
| using std::atomic_compare_exchange_strong; |
| using std::atomic_compare_exchange_strong_explicit; |
| using std::atomic_compare_exchange_weak; |
| using std::atomic_compare_exchange_weak_explicit; |
| using std::atomic_fetch_add; |
| using std::atomic_fetch_add_explicit; |
| using std::atomic_fetch_sub; |
| using std::atomic_fetch_sub_explicit; |
| using std::atomic_fetch_or; |
| using std::atomic_fetch_or_explicit; |
| using std::atomic_fetch_xor; |
| using std::atomic_fetch_xor_explicit; |
| using std::atomic_fetch_and; |
| using std::atomic_fetch_and_explicit; |
| using std::atomic_thread_fence; |
| using std::atomic_signal_fence; |
| |
| using std::memory_order; |
| using std::memory_order_relaxed; |
| using std::memory_order_consume; |
| using std::memory_order_acquire; |
| using std::memory_order_release; |
| using std::memory_order_acq_rel; |
| using std::memory_order_seq_cst; |
| |
| using std::atomic_bool; |
| using std::atomic_char; |
| using std::atomic_schar; |
| using std::atomic_uchar; |
| using std::atomic_short; |
| using std::atomic_ushort; |
| using std::atomic_int; |
| using std::atomic_uint; |
| using std::atomic_long; |
| using std::atomic_ulong; |
| using std::atomic_llong; |
| using std::atomic_ullong; |
| using std::atomic_char16_t; |
| using std::atomic_char32_t; |
| using std::atomic_wchar_t; |
| using std::atomic_int_least8_t; |
| using std::atomic_uint_least8_t; |
| using std::atomic_int_least16_t; |
| using std::atomic_uint_least16_t; |
| using std::atomic_int_least32_t; |
| using std::atomic_uint_least32_t; |
| using std::atomic_int_least64_t; |
| using std::atomic_uint_least64_t; |
| using std::atomic_int_fast8_t; |
| using std::atomic_uint_fast8_t; |
| using std::atomic_int_fast16_t; |
| using std::atomic_uint_fast16_t; |
| using std::atomic_int_fast32_t; |
| using std::atomic_uint_fast32_t; |
| using std::atomic_int_fast64_t; |
| using std::atomic_uint_fast64_t; |
| using std::atomic_intptr_t; |
| using std::atomic_uintptr_t; |
| using std::atomic_size_t; |
| using std::atomic_ptrdiff_t; |
| using std::atomic_intmax_t; |
| using std::atomic_uintmax_t; |
| |
| #else /* <atomic> unavailable, possibly because this is C, not C++ */ |
| |
| /* Actual implementation is in bits/stdatomic.h since our test code is C++. */ |
| #include <bits/stdatomic.h> |
| |
| #endif /* <atomic> unavailable */ |
| |
| #endif /* !_STDATOMIC_H_ */ |