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. Since 2.30
a pointer to a gpointer-sized value
the value to add
the value of atomic before the add, signed
See Implementation
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. Since 2.30