SVR5

ATOMIC_INT_DECR(D3)

ATOMIC_INT_DECR -- decrement an ATOMIC_INT value

Synopsis

   #include <sys/types.h>
   #include <sys/ksynch.h>
   #include <sys/ddi.h>
   
   bool_t ATOMIC_INT_DECR(atomic_int_t *counter);

ATOMIC_INT_DECR( ) decrements the integer value stored within the ATOMIC_INT(D4) object pointed to by counter.

Returns TRUE if the result of the decrement has value 0 and FALSE otherwise.

The ATOMIC_INT(D4) object pointed to by counter must have been previously allocated by ATOMIC_INT_ALLOC(D3) and initialized by ATOMIC_INT_INIT(D3).

The atomicity properties of ATOMIC_INT objects are strictly limited to a single object. See ``Atomic locks'' in HDK Technical Reference.

Non-blockable, interrupt, user, or blockable context.

All

ddi: 6, 6mp, 7, 7mp, 7.1, 7.1mp, 8, 8mp

``Atomic locks'' in HDK Technical Reference