atomic_int64_add

Description:

[ CCode ( cname = "gpseq_atomic_int64_add" ) ]
public int64 atomic_int64_add (ref int64 atomic, int64 val)

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.

atomic	a pointer to a int64 or uint64
val	the value to add

the value of atomic before the add, signed

Namespace: Gpseq

Package: gpseq-1.0