|QB_ATOMIC_INT_EXCHANGE_AND_ADD(3)||libqb Programmer's Manual||QB_ATOMIC_INT_EXCHANGE_AND_ADD(3)|
qb_atomic_int_exchange_and_add - Atomically adds val to the integer pointed to by atomic.
#include <qb/qbatomic.h> int32_t qb_atomic_int_exchange_and_add(
volatile int32_t QB_GNUC_MAY_ALIAS *atomic,
int32_t val );
atomic a pointer to an integer
val the value to add to *atomic
It returns the value of *atomic just before the addition took place. Also acts as a memory barrier.
the value of *atomic before the addition.
qb_atomic_int_set(3), qb_atomic_int_compare_and_exchange(3), qb_atomic_int_get(3), qb_atomic_int_add(3), qb_atomic_init(3), qb_atomic_pointer_get(3), qb_atomic_pointer_compare_and_exchange(3), qb_atomic_pointer_set(3)
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