Function
GLibatomic_int_add
since: 2.4
Declaration [src]
gint
g_atomic_int_add (
volatile gint* atomic,
gint val
)
Description [src]
Atomically adds val to the value of atomic.
Think of this operation as an atomic version of
{ tmp = *atomic; *atomic += val; return tmp; }.
This call acts as a full compiler and hardware memory barrier.
Before version 2.30, this function did not return a value
(but g_atomic_int_exchange_and_add() did, and had the same meaning).
While atomic has a volatile qualifier, this is a historical artifact and
the pointer passed to it should not be volatile.
Available since: 2.4