1/****************************************************************************
2**
3** Copyright (C) 2019 Intel Corporation.
4**
5** Permission is hereby granted, free of charge, to any person obtaining a copy
6** of this software and associated documentation files (the "Software"), to deal
7** in the Software without restriction, including without limitation the rights
8** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9** copies of the Software, and to permit persons to whom the Software is
10** furnished to do so, subject to the following conditions:
11**
12** The above copyright notice and this permission notice shall be included in
13** all copies or substantial portions of the Software.
14**
15** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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21** THE SOFTWARE.
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23****************************************************************************/
24
25#ifndef FFD_ATOMIC_C11_H
26#define FFD_ATOMIC_C11_H
27
28/* atomics */
29/* Using the C11 <stdatomic.h> header or C++11's <atomic>
30 */
31
32#if defined(__cplusplus)
33# include <atomic>
34# define ffd_atomic_pointer(type) std::atomic<type*>
35# define FFD_ATOMIC_RELAXED std::memory_order_relaxed
36# define FFD_ATOMIC_ACQUIRE std::memory_order_acquire
37# define FFD_ATOMIC_RELEASE std::memory_order_release
38// acq_rel & cst not necessary
39typedef std::atomic<int> ffd_atomic_int;
40#else
41# include <stdatomic.h>
42# define ffd_atomic_pointer(type) _Atomic(type*)
43# define FFD_ATOMIC_RELAXED memory_order_relaxed
44# define FFD_ATOMIC_ACQUIRE memory_order_acquire
45# define FFD_ATOMIC_RELEASE memory_order_release
46// acq_rel & cst not necessary
47
48typedef atomic_int ffd_atomic_int;
49#endif
50
51#define FFD_ATOMIC_INIT(val) ATOMIC_VAR_INIT(val)
52
53#define ffd_atomic_load(ptr, order) \
54 atomic_load_explicit(ptr, order)
55#define ffd_atomic_store(ptr, val, order) \
56 atomic_store_explicit(ptr, val, order)
57#define ffd_atomic_exchange(ptr,val,order) \
58 atomic_exchange_explicit(ptr, val, order)
59#define ffd_atomic_compare_exchange(ptr, expected, desired, order1, order2) \
60 atomic_compare_exchange_strong_explicit(ptr, expected, desired, order1, order2)
61#define ffd_atomic_add_fetch(ptr, val, order) \
62 (atomic_fetch_add_explicit(ptr, val, order) + (val))
63
64#endif
65