atomic_dec_if_positive.h File Reference

#include <sync_utils.h>
#include <atomic.h>

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Functions
static __inline int	_atomic_dec_if_positive (atomic_ea_t v)

---

Function Documentation

static __inline int _atomic_dec_if_positive

(

atomic_ea_t

v

)

[static]

atomic_dec_if_positive - atomically decrement if counter is positive. : handle to effective address of counter.

Atomically decrement a counter if its value is positive. The only restriction is that must be word aligned.

Returns the old value of the counter, minus 1.

References ALIGN128_EA, DECL_ATOMIC_VARS, likely, MFC_DMA, and OFFSET128_EA_U32.