76e2b15ad4
The previous check was causing some problems with platform builds using the NDK. The new check is more accurate. Move the C definitions from stdatomic.h to bits/stdatomic.h since with the new check, we no longer can use the #undef trick to test them. Test: build platform NDK with stdatomic.h in pthread.h header Test: stdatomic bionic-unit-tests Change-Id: Ia0bc3cc8344f2ba4e6e55a52248fb6efee799d1d
135 lines
4.5 KiB
C++
135 lines
4.5 KiB
C++
/*-
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* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
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* David Chisnall <theraven@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _STDATOMIC_H_
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#define _STDATOMIC_H_
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#include <sys/cdefs.h>
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#if defined(__cplusplus) && __cplusplus >= 201103L && __has_include(<atomic>)
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# if __has_feature(cxx_atomic)
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# define _STDATOMIC_HAVE_ATOMIC
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# endif
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#endif
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#ifdef _STDATOMIC_HAVE_ATOMIC
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/* We have a usable C++ <atomic>; use it instead. */
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#include <atomic>
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#undef _Atomic
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/* Also defined by <atomic> for gcc. But not used in macros. */
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/* Also a clang intrinsic. */
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/* Should not be used by client code before this file is */
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/* included. The definitions in <atomic> themselves see */
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/* the old definition, as they should. */
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/* Client code sees the following definition. */
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#define _Atomic(t) std::atomic<t>
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using std::atomic_is_lock_free;
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using std::atomic_init;
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using std::atomic_store;
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using std::atomic_store_explicit;
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using std::atomic_load;
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using std::atomic_load_explicit;
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using std::atomic_exchange;
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using std::atomic_exchange_explicit;
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using std::atomic_compare_exchange_strong;
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using std::atomic_compare_exchange_strong_explicit;
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using std::atomic_compare_exchange_weak;
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using std::atomic_compare_exchange_weak_explicit;
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using std::atomic_fetch_add;
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using std::atomic_fetch_add_explicit;
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using std::atomic_fetch_sub;
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using std::atomic_fetch_sub_explicit;
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using std::atomic_fetch_or;
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using std::atomic_fetch_or_explicit;
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using std::atomic_fetch_xor;
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using std::atomic_fetch_xor_explicit;
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using std::atomic_fetch_and;
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using std::atomic_fetch_and_explicit;
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using std::atomic_thread_fence;
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using std::atomic_signal_fence;
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using std::memory_order;
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using std::memory_order_relaxed;
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using std::memory_order_consume;
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using std::memory_order_acquire;
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using std::memory_order_release;
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using std::memory_order_acq_rel;
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using std::memory_order_seq_cst;
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using std::atomic_bool;
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using std::atomic_char;
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using std::atomic_schar;
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using std::atomic_uchar;
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using std::atomic_short;
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using std::atomic_ushort;
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using std::atomic_int;
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using std::atomic_uint;
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using std::atomic_long;
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using std::atomic_ulong;
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using std::atomic_llong;
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using std::atomic_ullong;
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using std::atomic_char16_t;
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using std::atomic_char32_t;
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using std::atomic_wchar_t;
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using std::atomic_int_least8_t;
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using std::atomic_uint_least8_t;
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using std::atomic_int_least16_t;
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using std::atomic_uint_least16_t;
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using std::atomic_int_least32_t;
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using std::atomic_uint_least32_t;
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using std::atomic_int_least64_t;
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using std::atomic_uint_least64_t;
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using std::atomic_int_fast8_t;
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using std::atomic_uint_fast8_t;
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using std::atomic_int_fast16_t;
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using std::atomic_uint_fast16_t;
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using std::atomic_int_fast32_t;
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using std::atomic_uint_fast32_t;
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using std::atomic_int_fast64_t;
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using std::atomic_uint_fast64_t;
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using std::atomic_intptr_t;
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using std::atomic_uintptr_t;
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using std::atomic_size_t;
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using std::atomic_ptrdiff_t;
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using std::atomic_intmax_t;
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using std::atomic_uintmax_t;
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#else /* <atomic> unavailable, possibly because this is C, not C++ */
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/* Actual implementation is in bits/stdatomic.h since our test code is C++. */
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#include <bits/stdatomic.h>
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#endif /* <atomic> unavailable */
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#endif /* !_STDATOMIC_H_ */
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