2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #ifndef COMPAT_ATOMICS_WIN32_STDATOMIC_H
20 #define COMPAT_ATOMICS_WIN32_STDATOMIC_H
22 #define WIN32_LEAN_AND_MEAN
27 #define ATOMIC_FLAG_INIT 0
29 #define ATOMIC_VAR_INIT(value) (value)
31 #define atomic_init(obj, value) \
36 #define kill_dependency(y) ((void)0)
38 #define atomic_thread_fence(order) \
41 #define atomic_signal_fence(order) \
44 #define atomic_is_lock_free(obj) 0
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;
83 #define atomic_store(object, desired) \
85 *(object) = (desired); \
89 #define atomic_store_explicit(object, desired, order) \
90 atomic_store(object, desired)
92 #define atomic_load(object) \
93 (MemoryBarrier(), *(object))
95 #define atomic_load_explicit(object, order) \
98 #define atomic_exchange(object, desired) \
99 InterlockedExchangePointer(object, desired);
101 #define atomic_exchange_explicit(object, desired, order) \
102 atomic_exchange(object, desired)
104 static inline int atomic_compare_exchange_strong(intptr_t *object, intptr_t *expected,
107 intptr_t old = *expected;
108 *expected = InterlockedCompareExchangePointer(object, desired, old);
109 return *expected == old;
112 #define atomic_compare_exchange_strong_explicit(object, expected, desired, success, failure) \
113 atomic_compare_exchange_strong(object, expected, desired)
115 #define atomic_compare_exchange_weak(object, expected, desired) \
116 atomic_compare_exchange_strong(object, expected, desired)
118 #define atomic_compare_exchange_weak_explicit(object, expected, desired, success, failure) \
119 atomic_compare_exchange_weak(object, expected, desired)
122 #define atomic_fetch_add(object, operand) \
123 InterlockedExchangeAdd64(object, operand)
125 #define atomic_fetch_sub(object, operand) \
126 InterlockedExchangeAdd64(object, -(operand))
128 #define atomic_fetch_or(object, operand) \
129 InterlockedOr64(object, operand)
131 #define atomic_fetch_xor(object, operand) \
132 InterlockedXor64(object, operand)
134 #define atomic_fetch_and(object, operand) \
135 InterlockedAnd64(object, operand)
137 #define atomic_fetch_add(object, operand) \
138 InterlockedExchangeAdd(object, operand)
140 #define atomic_fetch_sub(object, operand) \
141 InterlockedExchangeAdd(object, -(operand))
143 #define atomic_fetch_or(object, operand) \
144 InterlockedOr(object, operand)
146 #define atomic_fetch_xor(object, operand) \
147 InterlockedXor(object, operand)
149 #define atomic_fetch_and(object, operand) \
150 InterlockedAnd(object, operand)
153 #define atomic_fetch_add_explicit(object, operand, order) \
154 atomic_fetch_add(object, operand)
156 #define atomic_fetch_sub_explicit(object, operand, order) \
157 atomic_fetch_sub(object, operand)
159 #define atomic_fetch_or_explicit(object, operand, order) \
160 atomic_fetch_or(object, operand)
162 #define atomic_fetch_xor_explicit(object, operand, order) \
163 atomic_fetch_xor(object, operand)
165 #define atomic_fetch_and_explicit(object, operand, order) \
166 atomic_fetch_and(object, operand)
168 #define atomic_flag_test_and_set(object) \
169 atomic_exchange(object, 1)
171 #define atomic_flag_test_and_set_explicit(object, order) \
172 atomic_flag_test_and_set(object)
174 #define atomic_flag_clear(object) \
175 atomic_store(object, 0)
177 #define atomic_flag_clear_explicit(object, order) \
178 atomic_flag_clear(object)
180 #endif /* COMPAT_ATOMICS_WIN32_STDATOMIC_H */