If true is returned, the reference count reached 0. After this point, arc
is an undefined state and must be reinitialized with
g_atomic_ref_count_init() to be used again.
Parameters
arc: number
the address of an atomic reference count variable
Returns boolean
true if the reference count reached 0, and false otherwise
Atomically decreases the reference count.
If
trueis returned, the reference count reached 0. After this point,arcis an undefined state and must be reinitialized withg_atomic_ref_count_init()to be used again.