update

Update value by AtomicLong.compareAndSet and then return the old value.

while (true) {
    val current = value
    if (compareAndSet(current, block(current))) {
        return current
    }
}

The old value that been exchanged.

inline fun AtomicInt.update(block: (Int) -> Int): Int(source)

Update value by AtomicInt.compareAndSet and then return the old value.

while (true) {
    val current = value
    if (compareAndSet(current, block(current))) {
        return current
    }
}

The old value that been exchanged.

inline fun <T> AtomicRef<T>.update(block: (T) -> T): T(source)

Update value by AtomicRef.compareAndSet and then return the old value.

while (true) {
    val current = value
    if (compareAndSet(current, block(current))) {
        return current
    }
}

The old value that been exchanged.