1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/****************************************************************************
**
** Copyright (C) 2019 Intel Corporation.
**
** 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.
**
****************************************************************************/
#ifndef FFD_ATOMIC_C11_H
#define FFD_ATOMIC_C11_H
/* atomics */
/* Using the C11 <stdatomic.h> header or C++11's <atomic>
*/
#if defined(__cplusplus)
# include <atomic>
# define ffd_atomic_pointer(type) std::atomic<type*>
# define FFD_ATOMIC_RELAXED std::memory_order_relaxed
# define FFD_ATOMIC_ACQUIRE std::memory_order_acquire
# define FFD_ATOMIC_RELEASE std::memory_order_release
// acq_rel & cst not necessary
typedef std::atomic_int ffd_atomic_int;
#else
# include <stdatomic.h>
# define ffd_atomic_pointer(type) _Atomic(type*)
# define FFD_ATOMIC_RELAXED memory_order_relaxed
# define FFD_ATOMIC_ACQUIRE memory_order_acquire
# define FFD_ATOMIC_RELEASE memory_order_release
// acq_rel & cst not necessary
typedef atomic_int ffd_atomic_int;
#endif
#define FFD_ATOMIC_INIT(val) ATOMIC_VAR_INIT(val)
#define ffd_atomic_load(ptr, order) \
atomic_load_explicit(ptr, order)
#define ffd_atomic_store(ptr, val, order) \
atomic_store_explicit(ptr, val, order)
#define ffd_atomic_exchange(ptr,val,order) \
atomic_exchange_explicit(ptr, val, order)
#define ffd_atomic_compare_exchange(ptr, expected, desired, order1, order2) \
atomic_compare_exchange_strong_explicit(ptr, expected, desired, order1, order2)
#define ffd_atomic_add_fetch(ptr, val, order) \
(atomic_fetch_add_explicit(ptr, val, order) + (val))
#endif
|
