sdk/build-tools/26.0.0/renderscript/clang-include/stdatomic.h

   1 /*===---- stdatomic.h - Standard header for atomic types and operations -----===
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a copy
   4  * of this software and associated documentation files (the "Software"), to deal
   5  * in the Software without restriction, including without limitation the rights
   6  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7  * copies of the Software, and to permit persons to whom the Software is
   8  * furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice shall be included in
  11  * all copies or substantial portions of the Software.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  19  * THE SOFTWARE.
  20  *
  21  *===-----------------------------------------------------------------------===
  22  */
  23
  24 #ifndef __CLANG_STDATOMIC_H
  25 #define __CLANG_STDATOMIC_H
  26
  27 /* If we're hosted, fall back to the system's stdatomic.h. FreeBSD, for
  28  * example, already has a Clang-compatible stdatomic.h header.
  29  */
  30 #if __STDC_HOSTED__ && __has_include_next(<stdatomic.h>)
  31 # include_next <stdatomic.h>
  32 #else
  33
  34 #include <stddef.h>
  35 #include <stdint.h>
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 /* 7.17.1 Introduction */
  42
  43 #define ATOMIC_BOOL_LOCK_FREE       __GCC_ATOMIC_BOOL_LOCK_FREE
  44 #define ATOMIC_CHAR_LOCK_FREE       __GCC_ATOMIC_CHAR_LOCK_FREE
  45 #define ATOMIC_CHAR16_T_LOCK_FREE   __GCC_ATOMIC_CHAR16_T_LOCK_FREE
  46 #define ATOMIC_CHAR32_T_LOCK_FREE   __GCC_ATOMIC_CHAR32_T_LOCK_FREE
  47 #define ATOMIC_WCHAR_T_LOCK_FREE    __GCC_ATOMIC_WCHAR_T_LOCK_FREE
  48 #define ATOMIC_SHORT_T_LOCK_FREE    __GCC_ATOMIC_SHORT_T_LOCK_FREE
  49 #define ATOMIC_INT_T_LOCK_FREE      __GCC_ATOMIC_INT_T_LOCK_FREE
  50 #define ATOMIC_LONG_T_LOCK_FREE     __GCC_ATOMIC_LONG_T_LOCK_FREE
  51 #define ATOMIC_LLONG_T_LOCK_FREE    __GCC_ATOMIC_LLONG_T_LOCK_FREE
  52 #define ATOMIC_POINTER_T_LOCK_FREE  __GCC_ATOMIC_POINTER_T_LOCK_FREE
  53
  54 /* 7.17.2 Initialization */
  55
  56 #define ATOMIC_VAR_INIT(value) (value)
  57 #define atomic_init __c11_atomic_init
  58
  59 /* 7.17.3 Order and consistency */
  60
  61 typedef enum memory_order {
  62   memory_order_relaxed = __ATOMIC_RELAXED,
  63   memory_order_consume = __ATOMIC_CONSUME,
  64   memory_order_acquire = __ATOMIC_ACQUIRE,
  65   memory_order_release = __ATOMIC_RELEASE,
  66   memory_order_acq_rel = __ATOMIC_ACQ_REL,
  67   memory_order_seq_cst = __ATOMIC_SEQ_CST
  68 } memory_order;
  69
  70 #define kill_dependency(y) (y)
  71
  72 /* 7.17.4 Fences */
  73
  74 /* These should be provided by the libc implementation. */
  75 void atomic_thread_fence(memory_order);
  76 void atomic_signal_fence(memory_order);
  77
  78 #define atomic_thread_fence(order) __c11_atomic_thread_fence(order)
  79 #define atomic_signal_fence(order) __c11_atomic_signal_fence(order)
  80
  81 /* 7.17.5 Lock-free property */
  82
  83 #define atomic_is_lock_free(obj) __c11_atomic_is_lock_free(sizeof(*(obj)))
  84
  85 /* 7.17.6 Atomic integer types */
  86
  87 #ifdef __cplusplus
  88 typedef _Atomic(bool)               atomic_bool;
  89 #else
  90 typedef _Atomic(_Bool)              atomic_bool;
  91 #endif
  92 typedef _Atomic(char)               atomic_char;
  93 typedef _Atomic(signed char)        atomic_schar;
  94 typedef _Atomic(unsigned char)      atomic_uchar;
  95 typedef _Atomic(short)              atomic_short;
  96 typedef _Atomic(unsigned short)     atomic_ushort;
  97 typedef _Atomic(int)                atomic_int;
  98 typedef _Atomic(unsigned int)       atomic_uint;
  99 typedef _Atomic(long)               atomic_long;
 100 typedef _Atomic(unsigned long)      atomic_ulong;
 101 typedef _Atomic(long long)          atomic_llong;
 102 typedef _Atomic(unsigned long long) atomic_ullong;
 103 typedef _Atomic(uint_least16_t)     atomic_char16_t;
 104 typedef _Atomic(uint_least32_t)     atomic_char32_t;
 105 typedef _Atomic(wchar_t)            atomic_wchar_t;
 106 typedef _Atomic(int_least8_t)       atomic_int_least8_t;
 107 typedef _Atomic(uint_least8_t)      atomic_uint_least8_t;
 108 typedef _Atomic(int_least16_t)      atomic_int_least16_t;
 109 typedef _Atomic(uint_least16_t)     atomic_uint_least16_t;
 110 typedef _Atomic(int_least32_t)      atomic_int_least32_t;
 111 typedef _Atomic(uint_least32_t)     atomic_uint_least32_t;
 112 typedef _Atomic(int_least64_t)      atomic_int_least64_t;
 113 typedef _Atomic(uint_least64_t)     atomic_uint_least64_t;
 114 typedef _Atomic(int_fast8_t)        atomic_int_fast8_t;
 115 typedef _Atomic(uint_fast8_t)       atomic_uint_fast8_t;
 116 typedef _Atomic(int_fast16_t)       atomic_int_fast16_t;
 117 typedef _Atomic(uint_fast16_t)      atomic_uint_fast16_t;
 118 typedef _Atomic(int_fast32_t)       atomic_int_fast32_t;
 119 typedef _Atomic(uint_fast32_t)      atomic_uint_fast32_t;
 120 typedef _Atomic(int_fast64_t)       atomic_int_fast64_t;
 121 typedef _Atomic(uint_fast64_t)      atomic_uint_fast64_t;
 122 typedef _Atomic(intptr_t)           atomic_intptr_t;
 123 typedef _Atomic(uintptr_t)          atomic_uintptr_t;
 124 typedef _Atomic(size_t)             atomic_size_t;
 125 typedef _Atomic(ptrdiff_t)          atomic_ptrdiff_t;
 126 typedef _Atomic(intmax_t)           atomic_intmax_t;
 127 typedef _Atomic(uintmax_t)          atomic_uintmax_t;
 128
 129 /* 7.17.7 Operations on atomic types */
 130
 131 #define atomic_store(object, desired) __c11_atomic_store(object, desired, __ATOMIC_SEQ_CST)
 132 #define atomic_store_explicit __c11_atomic_store
 133
 134 #define atomic_load(object) __c11_atomic_load(object, __ATOMIC_SEQ_CST)
 135 #define atomic_load_explicit __c11_atomic_load
 136
 137 #define atomic_exchange(object, desired) __c11_atomic_exchange(object, desired, __ATOMIC_SEQ_CST)
 138 #define atomic_exchange_explicit __c11_atomic_exchange
 139
 140 #define atomic_compare_exchange_strong(object, expected, desired) __c11_atomic_compare_exchange_strong(object, expected, desired, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)
 141 #define atomic_compare_exchange_strong_explicit __c11_atomic_compare_exchange_strong
 142
 143 #define atomic_compare_exchange_weak(object, expected, desired) __c11_atomic_compare_exchange_weak(object, expected, desired, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST)
 144 #define atomic_compare_exchange_weak_explicit __c11_atomic_compare_exchange_weak
 145
 146 #define atomic_fetch_add(object, operand) __c11_atomic_fetch_add(object, operand, __ATOMIC_SEQ_CST)
 147 #define atomic_fetch_add_explicit __c11_atomic_fetch_add
 148
 149 #define atomic_fetch_sub(object, operand) __c11_atomic_fetch_sub(object, operand, __ATOMIC_SEQ_CST)
 150 #define atomic_fetch_sub_explicit __c11_atomic_fetch_sub
 151
 152 #define atomic_fetch_or(object, operand) __c11_atomic_fetch_or(object, operand, __ATOMIC_SEQ_CST)
 153 #define atomic_fetch_or_explicit __c11_atomic_fetch_or
 154
 155 #define atomic_fetch_xor(object, operand) __c11_atomic_fetch_xor(object, operand, __ATOMIC_SEQ_CST)
 156 #define atomic_fetch_xor_explicit __c11_atomic_fetch_xor
 157
 158 #define atomic_fetch_and(object, operand) __c11_atomic_fetch_and(object, operand, __ATOMIC_SEQ_CST)
 159 #define atomic_fetch_and_explicit __c11_atomic_fetch_and
 160
 161 /* 7.17.8 Atomic flag type and operations */
 162
 163 typedef struct atomic_flag { atomic_bool _Value; } atomic_flag;
 164
 165 #define ATOMIC_FLAG_INIT { 0 }
 166
 167 /* These should be provided by the libc implementation. */
 168 #ifdef __cplusplus
 169 bool atomic_flag_test_and_set(volatile atomic_flag *);
 170 bool atomic_flag_test_and_set_explicit(volatile atomic_flag *, memory_order);
 171 #else
 172 _Bool atomic_flag_test_and_set(volatile atomic_flag *);
 173 _Bool atomic_flag_test_and_set_explicit(volatile atomic_flag *, memory_order);
 174 #endif
 175 void atomic_flag_clear(volatile atomic_flag *);
 176 void atomic_flag_clear_explicit(volatile atomic_flag *, memory_order);
 177
 178 #define atomic_flag_test_and_set(object) __c11_atomic_exchange(&(object)->_Value, 1, __ATOMIC_SEQ_CST)
 179 #define atomic_flag_test_and_set_explicit(object, order) __c11_atomic_exchange(&(object)->_Value, 1, order)
 180
 181 #define atomic_flag_clear(object) __c11_atomic_store(&(object)->_Value, 0, __ATOMIC_SEQ_CST)
 182 #define atomic_flag_clear_explicit(object, order) __c11_atomic_store(&(object)->_Value, 0, order)
 183
 184 #ifdef __cplusplus
 185 }
 186 #endif
 187
 188 #endif /* __STDC_HOSTED__ */
 189 #endif /* __CLANG_STDATOMIC_H */
 190