// Copyright © Tavian Barnes <tavianator@tavianator.com> // SPDX-License-Identifier: 0BSD /** * Shorthand for standard C atomic operations. */ #ifndef BFS_ATOMIC_H #define BFS_ATOMIC_H #include <stdatomic.h> /** * Prettier spelling of _Atomic. */ #define atomic _Atomic /** * Shorthand for atomic_load_explicit(). * * @param obj * A pointer to the atomic object. * @param order * The memory ordering to use, without the memory_order_ prefix. * @return * The loaded value. */ #define load(obj, order) \ atomic_load_explicit(obj, memory_order_##order) /** * Shorthand for atomic_store_explicit(). */ #define store(obj, value, order) \ atomic_store_explicit(obj, value, memory_order_##order) /** * Shorthand for atomic_exchange_explicit(). */ #define exchange(obj, value, order) \ atomic_exchange_explicit(obj, value, memory_order_##order) /** * Shorthand for atomic_compare_exchange_weak_explicit(). */ #define compare_exchange_weak(obj, expected, desired, succ, fail) \ atomic_compare_exchange_weak_explicit(obj, expected, desired, memory_order_##succ, memory_order_##fail) /** * Shorthand for atomic_compare_exchange_strong_explicit(). */ #define compare_exchange_strong(obj, expected, desired, succ, fail) \ atomic_compare_exchange_strong_explicit(obj, expected, desired, memory_order_##succ, memory_order_##fail) /** * Shorthand for atomic_fetch_add_explicit(). */ #define fetch_add(obj, arg, order) \ atomic_fetch_add_explicit(obj, arg, memory_order_##order) /** * Shorthand for atomic_fetch_sub_explicit(). */ #define fetch_sub(obj, arg, order) \ atomic_fetch_sub_explicit(obj, arg, memory_order_##order) /** * Shorthand for atomic_fetch_or_explicit(). */ #define fetch_or(obj, arg, order) \ atomic_fetch_or_explicit(obj, arg, memory_order_##order) /** * Shorthand for atomic_fetch_xor_explicit(). */ #define fetch_xor(obj, arg, order) \ atomic_fetch_xor_explicit(obj, arg, memory_order_##order) /** * Shorthand for atomic_fetch_and_explicit(). */ #define fetch_and(obj, arg, order) \ atomic_fetch_and_explicit(obj, arg, memory_order_##order) #endif // BFS_ATOMIC_H