eatomic.h File Reference

Macros for performing CPU atomic/interlaced operations. More...

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Macros
#define	atomic_dec(a)   __sync_sub_and_fetch(&a, 1)
	atomic decrement - decrements a by 1 More...
#define	atomic_inc(a)   __sync_add_and_fetch(&a, 1)
	atomic increment - increments a by 1 More...
#define	atomic_dec_fetch(a)   __sync_sub_and_fetch(&a, 1)
	atomic decrement - decrements a by 1 More...
#define	atomic_inc_fetch(a)   __sync_add_and_fetch(&a, 1)
	atomic increment - increments a by 1 More...
#define	atomic_fetch_dec(a)   __sync_fetch_and_sub(&a, 1)
	atomic decrement - decrements a by 1 More...
#define	atomic_fetch_inc(a)   __sync_fetch_and_add(&a, 1)
	atomic increment - increments a by 1 More...
#define	atomic_cas(a, b, c)   __sync_val_compare_and_swap(&a, b, c)
	atomic compare and swap - if a equals b then a is replaced with c More...
#define	atomic_swap(a, b)   __sync_lock_test_and_set(&a, b)
	atomic swap - replaces a with b More...
#define	atomic_and(a, b)   __sync_fetch_and_and(&a, b)
	atomic and - performs a logical and between a and b putting the result in a More...
#define	atomic_or(a, b)   __sync_fetch_and_or(&a, b)
	atomic or - performs a logical or between a and b putting the result in a More...
#define	atomic_set(a, b)   __sync_lock_test_and_set(&a, b)
	atomic set - replaces a with b More...

Detailed Description

Macros for performing CPU atomic/interlaced operations.

Macro Definition Documentation

atomic_and

#define atomic_and	(		a,
			b
	)		__sync_fetch_and_and(&a, b)

atomic and - performs a logical and between a and b putting the result in a

atomic_cas

#define atomic_cas	(		a,
			b,
			c
	)		__sync_val_compare_and_swap(&a, b, c)

atomic compare and swap - if a equals b then a is replaced with c

atomic_dec

#define atomic_dec

(

a

)

__sync_sub_and_fetch(&a, 1)

atomic decrement - decrements a by 1

atomic_dec_fetch

#define atomic_dec_fetch

(

a

)

__sync_sub_and_fetch(&a, 1)

atomic decrement - decrements a by 1

atomic_fetch_dec

#define atomic_fetch_dec

(

a

)

__sync_fetch_and_sub(&a, 1)

atomic decrement - decrements a by 1

atomic_fetch_inc

#define atomic_fetch_inc

(

a

)

__sync_fetch_and_add(&a, 1)

atomic increment - increments a by 1

atomic_inc

#define atomic_inc

(

a

)

__sync_add_and_fetch(&a, 1)

atomic increment - increments a by 1

atomic_inc_fetch

#define atomic_inc_fetch

(

a

)

__sync_add_and_fetch(&a, 1)

atomic increment - increments a by 1

atomic_or

#define atomic_or	(		a,
			b
	)		__sync_fetch_and_or(&a, b)

atomic or - performs a logical or between a and b putting the result in a

atomic_set

#define atomic_set	(		a,
			b
	)		__sync_lock_test_and_set(&a, b)

atomic set - replaces a with b

atomic_swap

#define atomic_swap	(		a,
			b
	)		__sync_lock_test_and_set(&a, b)

atomic swap - replaces a with b