atomic_dec_and_test.h File Reference

#include "sync_utils.h"
#include "atomic.h"

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Functions
static __inline int	_atomic_dec_and_test (atomic_ea_t v)

---

Function Documentation

static __inline int _atomic_dec_and_test

(

atomic_ea_t

v

)

[static]

atomic_dec_and_test - atomically decrement and test if previous==0. : handle to effective address of counter.

Atomically decrement a counter in system memory and test if previous==0. The only restriction is that must be word aligned.

Returns the previous value from system memory.

References _atomic_modify().