FFmpeg
stdatomic.h
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12  * Lesser General Public License for more details.
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18 
19 #ifndef COMPAT_ATOMICS_WIN32_STDATOMIC_H
20 #define COMPAT_ATOMICS_WIN32_STDATOMIC_H
21 
22 #define WIN32_LEAN_AND_MEAN
23 #include <stddef.h>
24 #include <stdint.h>
25 #include <windows.h>
26 
27 #define ATOMIC_FLAG_INIT 0
28 
29 #define ATOMIC_VAR_INIT(value) (value)
30 
31 #define atomic_init(obj, value) \
32 do { \
33  *(obj) = (value); \
34 } while(0)
35 
36 #define kill_dependency(y) ((void)0)
37 
38 #define atomic_thread_fence(order) \
39  MemoryBarrier();
40 
41 #define atomic_signal_fence(order) \
42  ((void)0)
43 
44 #define atomic_is_lock_free(obj) 0
45 
46 typedef intptr_t atomic_flag;
47 typedef intptr_t atomic_bool;
48 typedef intptr_t atomic_char;
49 typedef intptr_t atomic_schar;
50 typedef intptr_t atomic_uchar;
51 typedef intptr_t atomic_short;
52 typedef intptr_t atomic_ushort;
53 typedef intptr_t atomic_int;
54 typedef intptr_t atomic_uint;
55 typedef intptr_t atomic_long;
56 typedef intptr_t atomic_ulong;
57 typedef intptr_t atomic_llong;
58 typedef intptr_t atomic_ullong;
59 typedef intptr_t atomic_wchar_t;
60 typedef intptr_t atomic_int_least8_t;
61 typedef intptr_t atomic_uint_least8_t;
62 typedef intptr_t atomic_int_least16_t;
63 typedef intptr_t atomic_uint_least16_t;
64 typedef intptr_t atomic_int_least32_t;
65 typedef intptr_t atomic_uint_least32_t;
66 typedef intptr_t atomic_int_least64_t;
67 typedef intptr_t atomic_uint_least64_t;
68 typedef intptr_t atomic_int_fast8_t;
69 typedef intptr_t atomic_uint_fast8_t;
70 typedef intptr_t atomic_int_fast16_t;
71 typedef intptr_t atomic_uint_fast16_t;
72 typedef intptr_t atomic_int_fast32_t;
73 typedef intptr_t atomic_uint_fast32_t;
74 typedef intptr_t atomic_int_fast64_t;
75 typedef intptr_t atomic_uint_fast64_t;
76 typedef intptr_t atomic_intptr_t;
77 typedef intptr_t atomic_uintptr_t;
78 typedef intptr_t atomic_size_t;
79 typedef intptr_t atomic_ptrdiff_t;
80 typedef intptr_t atomic_intmax_t;
81 typedef intptr_t atomic_uintmax_t;
82 
83 #define atomic_store(object, desired) \
84 do { \
85  *(object) = (desired); \
86  MemoryBarrier(); \
87 } while (0)
88 
89 #define atomic_store_explicit(object, desired, order) \
90  atomic_store(object, desired)
91 
92 #define atomic_load(object) \
93  (MemoryBarrier(), *(object))
94 
95 #define atomic_load_explicit(object, order) \
96  atomic_load(object)
97 
98 #define atomic_exchange(object, desired) \
99  InterlockedExchangePointer(object, desired);
100 
101 #define atomic_exchange_explicit(object, desired, order) \
102  atomic_exchange(object, desired)
103 
104 static inline int atomic_compare_exchange_strong(intptr_t *object, intptr_t *expected,
105  intptr_t desired)
106 {
107  intptr_t old = *expected;
108  *expected = (intptr_t)InterlockedCompareExchangePointer(
109  (PVOID *)object, (PVOID)desired, (PVOID)old);
110  return *expected == old;
111 }
112 
113 #define atomic_compare_exchange_strong_explicit(object, expected, desired, success, failure) \
114  atomic_compare_exchange_strong(object, expected, desired)
115 
116 #define atomic_compare_exchange_weak(object, expected, desired) \
117  atomic_compare_exchange_strong(object, expected, desired)
118 
119 #define atomic_compare_exchange_weak_explicit(object, expected, desired, success, failure) \
120  atomic_compare_exchange_weak(object, expected, desired)
121 
122 #ifdef _WIN64
123 #define atomic_fetch_add(object, operand) \
124  InterlockedExchangeAdd64(object, operand)
125 
126 #define atomic_fetch_sub(object, operand) \
127  InterlockedExchangeAdd64(object, -(operand))
128 
129 #define atomic_fetch_or(object, operand) \
130  InterlockedOr64(object, operand)
131 
132 #define atomic_fetch_xor(object, operand) \
133  InterlockedXor64(object, operand)
134 
135 #define atomic_fetch_and(object, operand) \
136  InterlockedAnd64(object, operand)
137 #else
138 #define atomic_fetch_add(object, operand) \
139  InterlockedExchangeAdd(object, operand)
140 
141 #define atomic_fetch_sub(object, operand) \
142  InterlockedExchangeAdd(object, -(operand))
143 
144 #define atomic_fetch_or(object, operand) \
145  InterlockedOr(object, operand)
146 
147 #define atomic_fetch_xor(object, operand) \
148  InterlockedXor(object, operand)
149 
150 #define atomic_fetch_and(object, operand) \
151  InterlockedAnd(object, operand)
152 #endif /* _WIN64 */
153 
154 #define atomic_fetch_add_explicit(object, operand, order) \
155  atomic_fetch_add(object, operand)
156 
157 #define atomic_fetch_sub_explicit(object, operand, order) \
158  atomic_fetch_sub(object, operand)
159 
160 #define atomic_fetch_or_explicit(object, operand, order) \
161  atomic_fetch_or(object, operand)
162 
163 #define atomic_fetch_xor_explicit(object, operand, order) \
164  atomic_fetch_xor(object, operand)
165 
166 #define atomic_fetch_and_explicit(object, operand, order) \
167  atomic_fetch_and(object, operand)
168 
169 #define atomic_flag_test_and_set(object) \
170  atomic_exchange(object, 1)
171 
172 #define atomic_flag_test_and_set_explicit(object, order) \
173  atomic_flag_test_and_set(object)
174 
175 #define atomic_flag_clear(object) \
176  atomic_store(object, 0)
177 
178 #define atomic_flag_clear_explicit(object, order) \
179  atomic_flag_clear(object)
180 
181 #endif /* COMPAT_ATOMICS_WIN32_STDATOMIC_H */
intptr_t atomic_flag
Definition: stdatomic.h:48
intptr_t atomic_bool
Definition: stdatomic.h:49
intptr_t atomic_uint_fast8_t
Definition: stdatomic.h:71
intptr_t atomic_ushort
Definition: stdatomic.h:54
intptr_t atomic_int
Definition: stdatomic.h:55
intptr_t atomic_int_least8_t
Definition: stdatomic.h:62
intptr_t atomic_long
Definition: stdatomic.h:57
intptr_t atomic_int_least32_t
Definition: stdatomic.h:66
intptr_t atomic_int_fast16_t
Definition: stdatomic.h:72
intptr_t atomic_uintptr_t
Definition: stdatomic.h:79
intptr_t atomic_size_t
Definition: stdatomic.h:80
intptr_t atomic_int_fast32_t
Definition: stdatomic.h:74
intptr_t atomic_schar
Definition: stdatomic.h:51
static int atomic_compare_exchange_strong(intptr_t *object, intptr_t *expected, intptr_t desired)
Definition: stdatomic.h:104
intptr_t atomic_llong
Definition: stdatomic.h:59
intptr_t atomic_int_fast8_t
Definition: stdatomic.h:70
intptr_t atomic_ulong
Definition: stdatomic.h:58
void * PVOID
intptr_t atomic_uint_fast16_t
Definition: stdatomic.h:73
intptr_t atomic_int_least16_t
Definition: stdatomic.h:64
intptr_t atomic_uint
Definition: stdatomic.h:56
intptr_t atomic_uint_fast32_t
Definition: stdatomic.h:75
intptr_t atomic_uint_least32_t
Definition: stdatomic.h:67
intptr_t atomic_int_fast64_t
Definition: stdatomic.h:76
intptr_t atomic_uchar
Definition: stdatomic.h:52
intptr_t atomic_short
Definition: stdatomic.h:53
intptr_t atomic_uint_least16_t
Definition: stdatomic.h:65
intptr_t atomic_intptr_t
Definition: stdatomic.h:78
intptr_t atomic_intmax_t
Definition: stdatomic.h:82
intptr_t atomic_uint_fast64_t
Definition: stdatomic.h:77
intptr_t atomic_ullong
Definition: stdatomic.h:60
intptr_t atomic_uintmax_t
Definition: stdatomic.h:83
intptr_t atomic_int_least64_t
Definition: stdatomic.h:68
intptr_t atomic_char
Definition: stdatomic.h:50
intptr_t atomic_ptrdiff_t
Definition: stdatomic.h:81
intptr_t atomic_wchar_t
Definition: stdatomic.h:61
intptr_t atomic_uint_least8_t
Definition: stdatomic.h:63
intptr_t atomic_uint_least64_t
Definition: stdatomic.h:69