atomic.h File Reference

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Functions
static INLINE uint64_t	atomic_swap_uint32 (volatile uint32_t *dst, uint32_t newval)
static INLINE uint64_t	atomic_swap_uint64 (volatile uint64_t *dst, uint64_t newval)
static void	atomic_set_uint64 (volatile uint64_t *dst, uint64_t newval)

Function Documentation

atomic_set_uint64()

static void atomic_set_uint64 ( volatile uint64_t *  dst, uint64_t  newval  )

inlinestatic

Definition at line 24 of file atomic.h.

{
    *dst = newval;
}

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atomic_swap_uint32()

static INLINE uint64_t atomic_swap_uint32 ( volatile uint32_t *  dst, uint32_t  newval  )

static

Definition at line 6 of file atomic.h.

{
    asm volatile("lock; xchgl %0, %1;"
            : "+m" (*dst), "+r" (newval));
 
    return newval;
}

atomic_swap_uint64()

static INLINE uint64_t atomic_swap_uint64 ( volatile uint64_t *  dst, uint64_t  newval  )

static

Definition at line 15 of file atomic.h.

{
    asm volatile("lock; xchgq %0, %1;"
            : "+m" (*dst), "+r" (newval));
 
    return newval;
}

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