* unsigned equivalents, i.e. 4-bytes and 8-bytes types, although GCC also
* supports 1 and 2-bytes types. Some non-x86 architectures do not support
* 8-byte atomic types (or not efficiently). */
+# if defined (_MSC_VER)
+/* Some atomic operations of the Interlocked API are only
+ available for desktop apps. Thus we define the atomic types to
+ be at least 32 bits wide. */
+typedef int_least32_t atomic_flag;
+typedef int_least32_t atomic_bool;
+typedef int_least32_t atomic_char;
+typedef int_least32_t atomic_schar;
+typedef uint_least32_t atomic_uchar;
+typedef int_least32_t atomic_short;
+typedef uint_least32_t atomic_ushort;
+# else
typedef bool atomic_flag;
typedef bool atomic_bool;
typedef char atomic_char;
typedef unsigned char atomic_uchar;
typedef short atomic_short;
typedef unsigned short atomic_ushort;
+# endif
typedef int atomic_int;
typedef unsigned int atomic_uint;
typedef long atomic_long;
/* Define macros in order to dispatch to the correct function depending on the type.
Several ranges are need because some operations are not implemented for all types. */
# define atomic_type_dispatch_32_64(operation, object, ...) \
- (sizeof(*object) == 4 ? operation(object, __VA_ARGS__) : \
- sizeof(*object) == 8 ? operation##64(object, __VA_ARGS__) : \
- (abort(), 0))
+ (sizeof(*object) == 4 ? operation((LONG *)object, __VA_ARGS__) : \
+ sizeof(*object) == 8 ? operation##64((LONGLONG *)object, __VA_ARGS__) : \
+ (abort(), 0))
# define atomic_type_dispatch_16_64(operation, object, ...) \
- (sizeof(*object) == 2 ? operation##16(object, __VA_ARGS__) : \
- atomic_type_dispatch_32_64(operation, object, __VA_ARGS__))
+ (sizeof(*object) == 2 ? operation##16((short *)object, __VA_ARGS__) : \
+ atomic_type_dispatch_32_64(operation, object, __VA_ARGS__))
# define atomic_type_dispatch_8_64(operation, object, ...) \
- (sizeof(*object) == 1 ? operation##8(object, __VA_ARGS__) : \
- atomic_type_dispatch_16_64(operation, object, __VA_ARGS__))
+ (sizeof(*object) == 1 ? operation##8((char *)object, __VA_ARGS__) : \
+ atomic_type_dispatch_16_64(operation, object, __VA_ARGS__))
# define atomic_store(object,desired) \
- atomic_type_dispatch_8_64(InterlockedExchange, object, desired)
+ atomic_type_dispatch_16_64(InterlockedExchange, object, desired)
# define atomic_store_explicit(object,desired,order) \
atomic_store(object, desired)
atomic_load(object)
# define atomic_exchange(object,desired) \
- atomic_type_dispatch_8_64(InterlockedExchange, object, desired)
+ atomic_type_dispatch_16_64(InterlockedExchange, object, desired)
# define atomic_exchange_explicit(object,desired,order) \
atomic_exchange(object, desired)
# define atomic_compare_exchange_strong(object,expected,desired) \
- atomic_type_dispatch_16_64(InterlockedCompareExchange, object, expected, desired) == expected
+ atomic_type_dispatch_16_64(InterlockedCompareExchange, object, *expected, desired) == *expected
# define atomic_compare_exchange_strong_explicit(object,expected,desired,order) \
atomic_compare_exchange_strong(object, expected, desired)
# define atomic_compare_exchange_weak(object,expected,desired) \
atomic_fetch_add(object, operand)
# define atomic_fetch_sub(object,operand) \
- atomic_type_dispatch_32_64(InterlockedExchangeAdd, object, -operand)
+ atomic_type_dispatch_32_64(InterlockedExchangeAdd, object, -(LONGLONG)operand)
# define atomic_fetch_sub_explicit(object,operand,order) \
atomic_fetch_sub(object, operand)