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.
a pointer to a #gpointer-sized value
the value to 'or'
Return: the value of @atomic before the operation, unsigned
2.30
See Implementation
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.