NAME

       qb_atomic_int_exchange_and_add - Atomically adds val to the integer pointed to by atomic.

SYNOPSIS

       #include <qb/qbatomic.h>

       int32_t qb_atomic_int_exchange_and_add(
           volatile int32_t QB_GNUC_MAY_ALIAS   *atomic,  /* a pointer to an integer */
           int32_t                               val      /* the value to add to *atomic */
       );

PARAMS

       atomic a pointer to an integer

       val    the value to add to *atomic

DESCRIPTION

       It returns the value of *atomic just before the addition took place. Also acts as a memory
       barrier.

RETURN VALUE

       the value of *atomic before the addition.

SEE ALSO

       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)

COPYRIGHT

       Copyright (C) 2003 Sebastian Wilhelmi