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quickjs-c-atomics.h
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quickjs-c-atomics.h
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/*
* QuickJS C atomics definitions
*
* Copyright (c) 2023 Marcin Kolny
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#if (defined(__GNUC__) || defined(__GNUG__)) && !defined(__clang__)
// Use GCC builtins for version < 4.9
# if((__GNUC__ << 16) + __GNUC_MINOR__ < ((4) << 16) + 9)
# define GCC_BUILTIN_ATOMICS
# endif
#endif
#ifdef GCC_BUILTIN_ATOMICS
#define atomic_fetch_add(obj, arg) \
__atomic_fetch_add(obj, arg, __ATOMIC_SEQ_CST)
#define atomic_compare_exchange_strong(obj, expected, desired) \
__atomic_compare_exchange_n(obj, expected, desired, 0, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)
#define atomic_exchange(obj, desired) \
__atomic_exchange_n (obj, desired, __ATOMIC_SEQ_CST)
#define atomic_load(obj) \
__atomic_load_n(obj, __ATOMIC_SEQ_CST)
#define atomic_store(obj, desired) \
__atomic_store_n(obj, desired, __ATOMIC_SEQ_CST)
#define atomic_fetch_or(obj, arg) \
__atomic_fetch_or(obj, arg, __ATOMIC_SEQ_CST)
#define atomic_fetch_xor(obj, arg) \
__atomic_fetch_xor(obj, arg, __ATOMIC_SEQ_CST)
#define atomic_fetch_and(obj, arg) \
__atomic_fetch_and(obj, arg, __ATOMIC_SEQ_CST)
#define atomic_fetch_sub(obj, arg) \
__atomic_fetch_sub(obj, arg, __ATOMIC_SEQ_CST)
#define _Atomic
#else
#include <stdatomic.h>
#endif