stdatomic.h File Reference

#include <stddef.h>
#include <stdint.h>

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Classes
struct	atomic_flag

Macros
#define	__has_feature(x)   0
#define	__has_builtin(x)   0
#define	__GNUC_PREREQ__(maj, min)   0
#define	_Atomic(T)   struct { volatile __typeof__(T) __val; }
#define	ATOMIC_VAR_INIT(value)   { .__val = (value) }
#define	atomic_init(obj, value)   ((void)((obj)->__val = (value)))
#define	__ATOMIC_RELAXED   0
#define	__ATOMIC_CONSUME   1
#define	__ATOMIC_ACQUIRE   2
#define	__ATOMIC_RELEASE   3
#define	__ATOMIC_ACQ_REL   4
#define	__ATOMIC_SEQ_CST   5
#define	__unused
#define	atomic_is_lock_free(obj)   ((void)(obj), sizeof((obj)->__val) <= sizeof(void *))
#define	__atomic_apply_stride(object, operand)   (((__typeof__((object)->__val))0) + (operand))
#define	atomic_compare_exchange_strong_explicit(object, expected, desired, success, failure)
#define	atomic_compare_exchange_weak_explicit(object, expected, desired, success, failure)
#define	atomic_exchange_explicit(object, desired, order)
#define	atomic_fetch_add_explicit(object, operand, order)
#define	atomic_fetch_and_explicit(object, operand, order)   ((void)(order), __sync_fetch_and_and(&(object)->__val, operand))
#define	atomic_fetch_or_explicit(object, operand, order)   ((void)(order), __sync_fetch_and_or(&(object)->__val, operand))
#define	atomic_fetch_sub_explicit(object, operand, order)
#define	atomic_fetch_xor_explicit(object, operand, order)   ((void)(order), __sync_fetch_and_xor(&(object)->__val, operand))
#define	atomic_load_explicit(object, order)   ((void)(order), __sync_fetch_and_add(&(object)->__val, 0))
#define	atomic_store_explicit(object, desired, order)   ((void)atomic_exchange_explicit(object, desired, order))
#define	atomic_compare_exchange_strong(object, expected, desired)
#define	atomic_compare_exchange_weak(object, expected, desired)
#define	atomic_exchange(object, desired)   atomic_exchange_explicit(object, desired, memory_order_seq_cst)
#define	atomic_fetch_add(object, operand)   atomic_fetch_add_explicit(object, operand, memory_order_seq_cst)
#define	atomic_fetch_and(object, operand)   atomic_fetch_and_explicit(object, operand, memory_order_seq_cst)
#define	atomic_fetch_or(object, operand)   atomic_fetch_or_explicit(object, operand, memory_order_seq_cst)
#define	atomic_fetch_sub(object, operand)   atomic_fetch_sub_explicit(object, operand, memory_order_seq_cst)
#define	atomic_fetch_xor(object, operand)   atomic_fetch_xor_explicit(object, operand, memory_order_seq_cst)
#define	atomic_load(object)   atomic_load_explicit(object, memory_order_seq_cst)
#define	atomic_store(object, desired)   atomic_store_explicit(object, desired, memory_order_seq_cst)
#define	ATOMIC_FLAG_INIT   { ATOMIC_VAR_INIT(0) }

Typedefs
typedef int	__Bool

Enumerations
enum	memory_order {   memory_order_relaxed = __ATOMIC_RELAXED, memory_order_consume = __ATOMIC_CONSUME, memory_order_acquire = __ATOMIC_ACQUIRE, memory_order_release = __ATOMIC_RELEASE,   memory_order_acq_rel = __ATOMIC_ACQ_REL, memory_order_seq_cst = __ATOMIC_SEQ_CST }

Functions
static __inline void	atomic_thread_fence (memory_order __order __unused)
static __inline void	atomic_signal_fence (memory_order __order __unused)
typedef	_Atomic (__Bool) atomic_bool
typedef	_Atomic (char) atomic_char
typedef	_Atomic (signed char) atomic_schar
typedef	_Atomic (unsigned char) atomic_uchar
typedef	_Atomic (short) atomic_short
typedef	_Atomic (long) atomic_long
typedef	_Atomic (unsigned long long) atomic_ullong
typedef	_Atomic (wchar_t) atomic_wchar_t
typedef	_Atomic (int_least8_t) atomic_int_least8_t
typedef	_Atomic (uint_least8_t) atomic_uint_least8_t
typedef	_Atomic (int_least16_t) atomic_int_least16_t
typedef	_Atomic (uint_least16_t) atomic_uint_least16_t
typedef	_Atomic (int_least32_t) atomic_int_least32_t
typedef	_Atomic (uint_least32_t) atomic_uint_least32_t
typedef	_Atomic (int_least64_t) atomic_int_least64_t
typedef	_Atomic (uint_least64_t) atomic_uint_least64_t
typedef	_Atomic (int_fast8_t) atomic_int_fast8_t
typedef	_Atomic (uint_fast8_t) atomic_uint_fast8_t
typedef	_Atomic (int_fast16_t) atomic_int_fast16_t
typedef	_Atomic (uint_fast16_t) atomic_uint_fast16_t
typedef	_Atomic (int_fast32_t) atomic_int_fast32_t
typedef	_Atomic (uint_fast32_t) atomic_uint_fast32_t
typedef	_Atomic (int_fast64_t) atomic_int_fast64_t
typedef	_Atomic (uint_fast64_t) atomic_uint_fast64_t
typedef	_Atomic (intptr_t) atomic_intptr_t
typedef	_Atomic (uintptr_t) atomic_uintptr_t
typedef	_Atomic (size_t) atomic_size_t
typedef	_Atomic (ptrdiff_t) atomic_ptrdiff_t
typedef	_Atomic (intmax_t) atomic_intmax_t
typedef	_Atomic (uintmax_t) atomic_uintmax_t
static __inline __Bool	atomic_flag_test_and_set_explicit (volatile atomic_flag *__object, memory_order __order)
static __inline void	atomic_flag_clear_explicit (volatile atomic_flag *__object, memory_order __order)
static __inline __Bool	atomic_flag_test_and_set (volatile atomic_flag *__object)
static __inline void	atomic_flag_clear (volatile atomic_flag *__object)

Macro Definition Documentation

__ATOMIC_ACQ_REL

#define __ATOMIC_ACQ_REL   4

Definition at line 155 of file stdatomic.h.

__ATOMIC_ACQUIRE

#define __ATOMIC_ACQUIRE   2

Definition at line 149 of file stdatomic.h.

__atomic_apply_stride

#define __atomic_apply_stride	(		object,
			operand
	)		(((__typeof__((object)->__val))0) + (operand))

Definition at line 333 of file stdatomic.h.

__ATOMIC_CONSUME

#define __ATOMIC_CONSUME   1

Definition at line 146 of file stdatomic.h.

__ATOMIC_RELAXED

#define __ATOMIC_RELAXED   0

Definition at line 143 of file stdatomic.h.

__ATOMIC_RELEASE

#define __ATOMIC_RELEASE   3

Definition at line 152 of file stdatomic.h.

__ATOMIC_SEQ_CST

#define __ATOMIC_SEQ_CST   5

Definition at line 158 of file stdatomic.h.

__GNUC_PREREQ__

#define __GNUC_PREREQ__	(		maj,
			min
	)		0

Definition at line 65 of file stdatomic.h.

__has_builtin

#define __has_builtin

(

x

)

0

Definition at line 58 of file stdatomic.h.

__has_feature

#define __has_feature

(

x

)

0

Definition at line 55 of file stdatomic.h.

__unused

#define __unused

Definition at line 181 of file stdatomic.h.

_Atomic

#define _Atomic

(

T

)

struct { volatile __typeof__(T) __val; }

Definition at line 121 of file stdatomic.h.

atomic_compare_exchange_strong

#define atomic_compare_exchange_strong	(		object,
			expected,
			desired
	)

Value:

atomic_compare_exchange_strong_explicit(object, expected,       \
            desired, memory_order_seq_cst, memory_order_seq_cst)

Definition at line 392 of file stdatomic.h.

atomic_compare_exchange_strong_explicit

#define atomic_compare_exchange_strong_explicit	(		object,
			expected,
			desired,
			success,
			failure
	)

Value:

__extension__ ({                        \
        __typeof__(expected) __ep = (expected);                         \
        __typeof__(*__ep) __e = *__ep;                                  \
        (void)(success); (void)(failure);                               \
        (__Bool)((*__ep = __sync_val_compare_and_swap(&(object)->__val, \
            __e, desired)) == __e);                                     \
})

Definition at line 335 of file stdatomic.h.

atomic_compare_exchange_weak

#define atomic_compare_exchange_weak	(		object,
			expected,
			desired
	)

Value:

atomic_compare_exchange_weak_explicit(object, expected,         \
            desired, memory_order_seq_cst, memory_order_seq_cst)

Definition at line 395 of file stdatomic.h.

atomic_compare_exchange_weak_explicit

#define atomic_compare_exchange_weak_explicit	(		object,
			expected,
			desired,
			success,
			failure
	)

Value:

atomic_compare_exchange_strong_explicit(object, expected,       \
                desired, success, failure)

Definition at line 343 of file stdatomic.h.

atomic_exchange

#define atomic_exchange	(		object,
			desired
	)		atomic_exchange_explicit(object, desired, memory_order_seq_cst)

Definition at line 398 of file stdatomic.h.

atomic_exchange_explicit

#define atomic_exchange_explicit	(		object,
			desired,
			order
	)

Value:

__extension__ ({                                                        \
        __typeof__(object) __o = (object);                              \
        __typeof__(desired) __d = (desired);                            \
        (void)(order);                                                  \
        __sync_synchronize();                                           \
        __sync_lock_test_and_set(&(__o)->__val, __d);                   \
})

Definition at line 357 of file stdatomic.h.

atomic_fetch_add

#define atomic_fetch_add	(		object,
			operand
	)		atomic_fetch_add_explicit(object, operand, memory_order_seq_cst)

Definition at line 400 of file stdatomic.h.

atomic_fetch_add_explicit

#define atomic_fetch_add_explicit	(		object,
			operand,
			order
	)

Value:

((void)(order), __sync_fetch_and_add(&(object)->__val,          \
            __atomic_apply_stride(object, operand)))

Definition at line 366 of file stdatomic.h.

atomic_fetch_and

#define atomic_fetch_and	(		object,
			operand
	)		atomic_fetch_and_explicit(object, operand, memory_order_seq_cst)

Definition at line 402 of file stdatomic.h.

atomic_fetch_and_explicit

#define atomic_fetch_and_explicit	(		object,
			operand,
			order
	)		((void)(order), __sync_fetch_and_and(&(object)->__val, operand))

Definition at line 369 of file stdatomic.h.

atomic_fetch_or

#define atomic_fetch_or	(		object,
			operand
	)		atomic_fetch_or_explicit(object, operand, memory_order_seq_cst)

Definition at line 404 of file stdatomic.h.

atomic_fetch_or_explicit

#define atomic_fetch_or_explicit	(		object,
			operand,
			order
	)		((void)(order), __sync_fetch_and_or(&(object)->__val, operand))

Definition at line 371 of file stdatomic.h.

atomic_fetch_sub

#define atomic_fetch_sub	(		object,
			operand
	)		atomic_fetch_sub_explicit(object, operand, memory_order_seq_cst)

Definition at line 406 of file stdatomic.h.

atomic_fetch_sub_explicit

#define atomic_fetch_sub_explicit	(		object,
			operand,
			order
	)

Value:

((void)(order), __sync_fetch_and_sub(&(object)->__val,          \
            __atomic_apply_stride(object, operand)))

Definition at line 373 of file stdatomic.h.

atomic_fetch_xor

#define atomic_fetch_xor	(		object,
			operand
	)		atomic_fetch_xor_explicit(object, operand, memory_order_seq_cst)

Definition at line 408 of file stdatomic.h.

atomic_fetch_xor_explicit

#define atomic_fetch_xor_explicit	(		object,
			operand,
			order
	)		((void)(order), __sync_fetch_and_xor(&(object)->__val, operand))

Definition at line 376 of file stdatomic.h.

ATOMIC_FLAG_INIT

#define ATOMIC_FLAG_INIT   { ATOMIC_VAR_INIT(0) }

Definition at line 427 of file stdatomic.h.

atomic_init

#define atomic_init	(		obj,
			value
	)		((void)((obj)->__val = (value)))

Definition at line 133 of file stdatomic.h.

atomic_is_lock_free

#define atomic_is_lock_free

(

obj

)

((void)(obj), sizeof((obj)->__val) <= sizeof(void *))

Definition at line 226 of file stdatomic.h.

atomic_load

#define atomic_load

(

object

)

atomic_load_explicit(object, memory_order_seq_cst)

Definition at line 410 of file stdatomic.h.

atomic_load_explicit

#define atomic_load_explicit	(		object,
			order
	)		((void)(order), __sync_fetch_and_add(&(object)->__val, 0))

Definition at line 378 of file stdatomic.h.

atomic_store

#define atomic_store	(		object,
			desired
	)		atomic_store_explicit(object, desired, memory_order_seq_cst)

Definition at line 412 of file stdatomic.h.

atomic_store_explicit

#define atomic_store_explicit	(		object,
			desired,
			order
	)		((void)atomic_exchange_explicit(object, desired, order))

Definition at line 380 of file stdatomic.h.

ATOMIC_VAR_INIT

#define ATOMIC_VAR_INIT

(

value

)

{ .__val = (value) }

Definition at line 132 of file stdatomic.h.

Typedef Documentation

__Bool

typedef int __Bool

Definition at line 83 of file stdatomic.h.

Enumeration Type Documentation

memory_order

enum memory_order

Enumerator
memory_order_relaxed
memory_order_consume
memory_order_acquire
memory_order_release
memory_order_acq_rel
memory_order_seq_cst

Definition at line 168 of file stdatomic.h.

Function Documentation

_Atomic() [1/30]

typedef _Atomic

(

__Bool

)

_Atomic() [2/30]

typedef _Atomic

(

char

)

_Atomic() [3/30]

typedef _Atomic

(

signed

char

)

_Atomic() [4/30]

typedef _Atomic

(

unsigned

char

)

_Atomic() [5/30]

typedef _Atomic

(

short

)

_Atomic() [6/30]

typedef _Atomic

(

long

)

_Atomic() [7/30]

typedef _Atomic

(

unsigned long

long

)

_Atomic() [8/30]

typedef _Atomic

(

wchar_t

)

_Atomic() [9/30]

typedef _Atomic

(

int_least8_t

)

_Atomic() [10/30]

typedef _Atomic

(

uint_least8_t

)

_Atomic() [11/30]

typedef _Atomic

(

int_least16_t

)

_Atomic() [12/30]

typedef _Atomic

(

uint_least16_t

)

_Atomic() [13/30]

typedef _Atomic

(

int_least32_t

)

_Atomic() [14/30]

typedef _Atomic

(

uint_least32_t

)

_Atomic() [15/30]

typedef _Atomic

(

int_least64_t

)

_Atomic() [16/30]

typedef _Atomic

(

uint_least64_t

)

_Atomic() [17/30]

typedef _Atomic

(

int_fast8_t

)

_Atomic() [18/30]

typedef _Atomic

(

uint_fast8_t

)

_Atomic() [19/30]

typedef _Atomic

(

int_fast16_t

)

_Atomic() [20/30]

typedef _Atomic

(

uint_fast16_t

)

_Atomic() [21/30]

typedef _Atomic

(

int_fast32_t

)

_Atomic() [22/30]

typedef _Atomic

(

uint_fast32_t

)

_Atomic() [23/30]

typedef _Atomic

(

int_fast64_t

)

_Atomic() [24/30]

typedef _Atomic

(

uint_fast64_t

)

_Atomic() [25/30]

typedef _Atomic

(

intptr_t

)

_Atomic() [26/30]

typedef _Atomic

(

uintptr_t

)

_Atomic() [27/30]

typedef _Atomic

(

size_t

)

_Atomic() [28/30]

typedef _Atomic

(

ptrdiff_t

)

_Atomic() [29/30]

typedef _Atomic

(

intmax_t

)

_Atomic() [30/30]

typedef _Atomic

(

uintmax_t

)

atomic_flag_clear()

static __inline void atomic_flag_clear ( volatile atomic_flag *  __object )

static

Definition at line 453 of file stdatomic.h.

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atomic_flag_clear_explicit()

static __inline void atomic_flag_clear_explicit ( volatile atomic_flag *  __object, memory_order  __order  )

static

Definition at line 437 of file stdatomic.h.

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atomic_flag_test_and_set()

static __inline __Bool atomic_flag_test_and_set ( volatile atomic_flag *  __object )

static

Definition at line 445 of file stdatomic.h.

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atomic_flag_test_and_set_explicit()

static __inline __Bool atomic_flag_test_and_set_explicit ( volatile atomic_flag *  __object, memory_order  __order  )

static

Definition at line 430 of file stdatomic.h.

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atomic_signal_fence()

static __inline void atomic_signal_fence ( memory_order __order  __unused )

static

Definition at line 197 of file stdatomic.h.

atomic_thread_fence()

static __inline void atomic_thread_fence ( memory_order __order  __unused )

static

Definition at line 184 of file stdatomic.h.