QB_ATOMIC_INT_EXCHANGE_AND_ADD(3)                    libqb Programmer's Manual

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,
           int32_t                               val
       );

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

LIBQB                             2021-03-03 QB_ATOMIC_INT_EXCHANGE_AND_ADD(3)