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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
#ifndef KIT_ATOMIC_H
#define KIT_ATOMIC_H
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <stdint.h>
#ifndef _MSC_VER
# include <stdatomic.h>
# define KIT_ATOMIC(type_) type_ _Atomic
#else
# include <assert.h>
# define KIT_ATOMIC(type_) type_ volatile
# ifdef __cplusplus
extern "C" {
# endif
enum {
memory_order_relaxed,
memory_order_consume,
memory_order_acquire,
memory_order_release,
memory_order_acq_rel,
memory_order_seq_cst
};
void kit_atomic_store_explicit_8(uint8_t volatile *var, uint8_t value,
int memory_order);
void kit_atomic_store_explicit_16(uint16_t volatile *var,
uint16_t value, int memory_order);
void kit_atomic_store_explicit_32(uint32_t volatile *var,
uint32_t value, int memory_order);
void kit_atomic_store_explicit_64(uint64_t volatile *var,
uint64_t value, int memory_order);
uint8_t kit_atomic_load_explicit_8(uint8_t volatile *var,
int memory_order);
uint16_t kit_atomic_load_explicit_16(uint16_t volatile *var,
int memory_order);
uint32_t kit_atomic_load_explicit_32(uint32_t volatile *var,
int memory_order);
uint64_t kit_atomic_load_explicit_64(uint64_t volatile *var,
int memory_order);
uint8_t kit_atomic_exchange_explicit_8(uint8_t volatile *var,
uint8_t value,
int memory_order);
uint16_t kit_atomic_exchange_explicit_16(uint16_t volatile *var,
uint16_t value,
int memory_order);
uint32_t kit_atomic_exchange_explicit_32(uint32_t volatile *var,
uint32_t value,
int memory_order);
uint64_t kit_atomic_exchange_explicit_64(uint64_t volatile *var,
uint64_t value,
int memory_order);
uint8_t kit_atomic_fetch_add_explicit_8(uint8_t volatile *var,
uint8_t value,
int memory_order);
uint16_t kit_atomic_fetch_add_explicit_16(uint16_t volatile *var,
uint16_t value,
int memory_order);
uint32_t kit_atomic_fetch_add_explicit_32(uint32_t volatile *var,
uint32_t value,
int memory_order);
uint64_t kit_atomic_fetch_add_explicit_64(uint64_t volatile *var,
uint64_t value,
int memory_order);
# define atomic_store_explicit(var_, value_, memory_order_) \
do { \
assert(sizeof *(var_) == 1 || sizeof *(var_) == 2 || \
sizeof *(var_) == 4 || sizeof *(var_) == 8); \
if (sizeof *(var_) == 1) \
kit_atomic_store_explicit_8((uint8_t volatile *) (var_), \
(uint8_t) (value_), \
(memory_order_)); \
if (sizeof *(var_) == 2) \
kit_atomic_store_explicit_16((uint16_t volatile *) (var_), \
(uint16_t) (value_), \
(memory_order_)); \
if (sizeof *(var_) == 4) \
kit_atomic_store_explicit_32((uint32_t volatile *) (var_), \
(uint32_t) (value_), \
(memory_order_)); \
if (sizeof *(var_) == 8) \
kit_atomic_store_explicit_64((uint64_t volatile *) (var_), \
(uint64_t) (value_), \
(memory_order_)); \
} while (0)
# define atomic_load_explicit(var_, memory_order_) \
(assert(sizeof *(var_) == 1 || sizeof *(var_) == 2 || \
sizeof *(var_) == 4 || sizeof *(var_) == 8), \
(sizeof *(var_) == 1 \
? kit_atomic_load_explicit_8((uint8_t volatile *) (var_), \
(memory_order_)) \
: sizeof *(var_) == 2 \
? kit_atomic_load_explicit_16( \
(uint16_t volatile *) (var_), (memory_order_)) \
: sizeof *(var_) == 4 \
? kit_atomic_load_explicit_32( \
(uint32_t volatile *) (var_), (memory_order_)) \
: kit_atomic_load_explicit_64( \
(uint64_t volatile *) (var_), (memory_order_))))
# define atomic_exchange_explicit(var_, value_, memory_order_) \
(assert(sizeof *(var_) == 1 || sizeof *(var_) == 2 || \
sizeof *(var_) == 4 || sizeof *(var_) == 8), \
(sizeof *(var_) == 1 ? kit_atomic_exchange_explicit_8( \
(uint8_t volatile *) (var_), \
(uint8_t) (value_), (memory_order_)) \
: sizeof *(var_) == 2 \
? kit_atomic_exchange_explicit_16( \
(uint16_t volatile *) (var_), (uint16_t) (value_), \
(memory_order_)) \
: sizeof *(var_) == 4 \
? kit_atomic_exchange_explicit_32( \
(uint32_t volatile *) (var_), (uint32_t) (value_), \
(memory_order_)) \
: kit_atomic_exchange_explicit_64( \
(uint64_t volatile *) (var_), (uint64_t) (value_), \
(memory_order_))))
# define atomic_fetch_add_explicit(var_, value_, memory_order_) \
(assert(sizeof *(var_) == 1 || sizeof *(var_) == 2 || \
sizeof *(var_) == 4 || sizeof *(var_) == 8), \
(sizeof *(var_) == 1 ? kit_atomic_fetch_add_explicit_8( \
(uint8_t volatile *) (var_), \
(uint8_t) (value_), (memory_order_)) \
: sizeof *(var_) == 2 \
? kit_atomic_fetch_add_explicit_16( \
(uint16_t volatile *) (var_), (uint16_t) (value_), \
(memory_order_)) \
: sizeof *(var_) == 4 \
? kit_atomic_fetch_add_explicit_32( \
(uint32_t volatile *) (var_), (uint32_t) (value_), \
(memory_order_)) \
: kit_atomic_fetch_add_explicit_64( \
(uint64_t volatile *) (var_), (uint64_t) (value_), \
(memory_order_))))
#endif
#ifndef KIT_DISABLE_SHORT_NAMES
# define ATOMIC KIT_ATOMIC
#endif
#ifdef __cplusplus
}
#endif
#endif
|
