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|gpointer-sized] value
the value to 'or'
the value of atomic before the operation, unsigned
2.30
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.