Function
GLibatomic_pointer_or
since: 2.30
Declaration [src]
guintptr
g_atomic_pointer_or (
void* atomic,
gsize val
)
Description [src]
Performs an atomic bitwise ‘or’ of the value of atomic and val,
storing the result back in 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.
While atomic has a volatile qualifier, this is a historical artifact and
the pointer passed to it should not be volatile.
In GLib 2.80, the return type was changed from #gsize to #guintptr to add support for platforms with 128-bit pointers. This should not affect existing code.
Available since: 2.30