Volatile piggyback. Is this enough for visiblity?

Question

This is about volatile piggyback. Purpose: I want to reach a lightweight vars visibilty. Consistency of a_b_c is not important. I have a bunch of vars and I don\'t want to m

Answer 1

The pattern is usually like this.

public void setup() {
    a = 2;
    b = 3;
    c = 4;
    sync();
}

However, while this guarantees the other threads will see this change, the other threads can see an incomplete change. e.g. the Thread2 might see a = 2, b = 3, c = 0. or even possibly a = 2, b = 0, c = 4;

Using the sync() on the reader doesn't help much.