FFmpeg
stdatomic.h
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18 
19 #ifndef COMPAT_ATOMICS_SUNCC_STDATOMIC_H
20 #define COMPAT_ATOMICS_SUNCC_STDATOMIC_H
21 
22 #include <atomic.h>
23 #include <mbarrier.h>
24 #include <stddef.h>
25 #include <stdint.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  __machine_rw_barrier();
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 static inline void atomic_store(intptr_t *object, intptr_t desired)
84 {
85  *object = desired;
86  __machine_rw_barrier();
87 }
88 
89 #define atomic_store_explicit(object, desired, order) \
90  atomic_store(object, desired)
91 
92 static inline intptr_t atomic_load(intptr_t *object)
93 {
94  __machine_rw_barrier();
95  return *object;
96 }
97 
98 #define atomic_load_explicit(object, order) \
99  atomic_load(object)
100 
101 #define atomic_exchange(object, desired) \
102  atomic_swap_ptr(object, desired)
103 
104 #define atomic_exchange_explicit(object, desired, order) \
105  atomic_exchange(object, desired)
106 
107 static inline int atomic_compare_exchange_strong(intptr_t *object, intptr_t *expected,
108  intptr_t desired)
109 {
110  intptr_t old = *expected;
111  *expected = (intptr_t)atomic_cas_ptr(object, (void *)old, (void *)desired);
112  return *expected == old;
113 }
114 
115 #define atomic_compare_exchange_strong_explicit(object, expected, desired, success, failure) \
116  atomic_compare_exchange_strong(object, expected, desired)
117 
118 #define atomic_compare_exchange_weak(object, expected, desired) \
119  atomic_compare_exchange_strong(object, expected, desired)
120 
121 #define atomic_compare_exchange_weak_explicit(object, expected, desired, success, failure) \
122  atomic_compare_exchange_weak(object, expected, desired)
123 
124 static inline intptr_t atomic_fetch_add(intptr_t *object, intptr_t operand)
125 {
126  return atomic_add_ptr_nv(object, operand) - operand;
127 }
128 
129 #define atomic_fetch_sub(object, operand) \
130  atomic_fetch_add(object, -(operand))
131 
132 static inline intptr_t atomic_fetch_or(intptr_t *object, intptr_t operand)
133 {
134  intptr_t old;
135  do {
136  old = atomic_load(object);
137  } while (!atomic_compare_exchange_strong(object, old, old | operand));
138  return old;
139 }
140 
141 static inline intptr_t atomic_fetch_xor(intptr_t *object, intptr_t operand)
142 {
143  intptr_t old;
144  do {
145  old = atomic_load(object);
146  } while (!atomic_compare_exchange_strong(object, old, old ^ operand));
147  return old;
148 }
149 
150 static inline intptr_t atomic_fetch_and(intptr_t *object, intptr_t operand)
151 {
152  intptr_t old;
153  do {
154  old = atomic_load(object);
155  } while (!atomic_compare_exchange_strong(object, old, old & operand));
156  return old;
157 }
158 
159 #define atomic_fetch_add_explicit(object, operand, order) \
160  atomic_fetch_add(object, operand)
161 
162 #define atomic_fetch_sub_explicit(object, operand, order) \
163  atomic_fetch_sub(object, operand)
164 
165 #define atomic_fetch_or_explicit(object, operand, order) \
166  atomic_fetch_or(object, operand)
167 
168 #define atomic_fetch_xor_explicit(object, operand, order) \
169  atomic_fetch_xor(object, operand)
170 
171 #define atomic_fetch_and_explicit(object, operand, order) \
172  atomic_fetch_and(object, operand)
173 
174 #define atomic_flag_test_and_set(object) \
175  atomic_exchange(object, 1)
176 
177 #define atomic_flag_test_and_set_explicit(object, order) \
178  atomic_flag_test_and_set(object)
179 
180 #define atomic_flag_clear(object) \
181  atomic_store(object, 0)
182 
183 #define atomic_flag_clear_explicit(object, order) \
184  atomic_flag_clear(object)
185 
186 #endif /* COMPAT_ATOMICS_SUNCC_STDATOMIC_H */
atomic_char
intptr_t atomic_char
Definition: stdatomic.h:50
atomic_ptrdiff_t
intptr_t atomic_ptrdiff_t
Definition: stdatomic.h:81
atomic_compare_exchange_strong
static int atomic_compare_exchange_strong(intptr_t *object, intptr_t *expected, intptr_t desired)
Definition: stdatomic.h:107
atomic_wchar_t
intptr_t atomic_wchar_t
Definition: stdatomic.h:61
atomic_uint_least8_t
intptr_t atomic_uint_least8_t
Definition: stdatomic.h:63
atomic_ushort
intptr_t atomic_ushort
Definition: stdatomic.h:54
atomic_bool
intptr_t atomic_bool
Definition: stdatomic.h:49
atomic_uint_fast8_t
intptr_t atomic_uint_fast8_t
Definition: stdatomic.h:71
atomic_int
intptr_t atomic_int
Definition: stdatomic.h:55
atomic_int_least8_t
intptr_t atomic_int_least8_t
Definition: stdatomic.h:62
atomic_flag
intptr_t atomic_flag
Definition: stdatomic.h:48
atomic_int_fast32_t
intptr_t atomic_int_fast32_t
Definition: stdatomic.h:74
atomic_long
intptr_t atomic_long
Definition: stdatomic.h:57
atomic_int_fast16_t
intptr_t atomic_int_fast16_t
Definition: stdatomic.h:72
atomic_uintptr_t
intptr_t atomic_uintptr_t
Definition: stdatomic.h:79
atomic_size_t
intptr_t atomic_size_t
Definition: stdatomic.h:80
atomic_llong
intptr_t atomic_llong
Definition: stdatomic.h:59
atomic_int_least32_t
intptr_t atomic_int_least32_t
Definition: stdatomic.h:66
atomic_int_fast8_t
intptr_t atomic_int_fast8_t
Definition: stdatomic.h:70
atomic_fetch_add
static intptr_t atomic_fetch_add(intptr_t *object, intptr_t operand)
Definition: stdatomic.h:124
atomic_schar
intptr_t atomic_schar
Definition: stdatomic.h:51
atomic_ulong
intptr_t atomic_ulong
Definition: stdatomic.h:58
atomic_fetch_xor
static intptr_t atomic_fetch_xor(intptr_t *object, intptr_t operand)
Definition: stdatomic.h:141
atomic_uint_fast16_t
intptr_t atomic_uint_fast16_t
Definition: stdatomic.h:73
atomic_fetch_and
static intptr_t atomic_fetch_and(intptr_t *object, intptr_t operand)
Definition: stdatomic.h:150
atomic_int_least16_t
intptr_t atomic_int_least16_t
Definition: stdatomic.h:64
atomic_uchar
intptr_t atomic_uchar
Definition: stdatomic.h:52
atomic_uint_least16_t
intptr_t atomic_uint_least16_t
Definition: stdatomic.h:65
atomic_intmax_t
intptr_t atomic_intmax_t
Definition: stdatomic.h:82
atomic_ullong
intptr_t atomic_ullong
Definition: stdatomic.h:60
atomic_store
static void atomic_store(intptr_t *object, intptr_t desired)
Definition: stdatomic.h:83
atomic_uint_fast32_t
intptr_t atomic_uint_fast32_t
Definition: stdatomic.h:75
atomic_uint_least32_t
intptr_t atomic_uint_least32_t
Definition: stdatomic.h:67
atomic_int_least64_t
intptr_t atomic_int_least64_t
Definition: stdatomic.h:68
atomic_fetch_or
static intptr_t atomic_fetch_or(intptr_t *object, intptr_t operand)
Definition: stdatomic.h:132
atomic_int_fast64_t
intptr_t atomic_int_fast64_t
Definition: stdatomic.h:76
atomic_intptr_t
intptr_t atomic_intptr_t
Definition: stdatomic.h:78
atomic_short
intptr_t atomic_short
Definition: stdatomic.h:53
atomic_uint
intptr_t atomic_uint
Definition: stdatomic.h:56
atomic_uint_fast64_t
intptr_t atomic_uint_fast64_t
Definition: stdatomic.h:77
atomic_uintmax_t
intptr_t atomic_uintmax_t
Definition: stdatomic.h:83
atomic_uint_least64_t
intptr_t atomic_uint_least64_t
Definition: stdatomic.h:69
atomic_load
static intptr_t atomic_load(intptr_t *object)
Definition: stdatomic.h:92