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package java.util.concurrent.atomic
class AtomicInteger(private[this] var value: Int)
extends Number with Serializable {
def this() = this(0)
final def get(): Int = value
final def set(newValue: Int): Unit =
value = newValue
final def lazySet(newValue: Int): Unit =
set(newValue)
final def getAndSet(newValue: Int): Int = {
val old = value
value = newValue
old
}
final def compareAndSet(expect: Int, update: Int): Boolean = {
if (expect != value) false else {
value = update
true
}
}
final def weakCompareAndSet(expect: Int, update: Int): Boolean =
compareAndSet(expect, update)
final def getAndIncrement(): Int =
getAndAdd(1)
final def getAndDecrement(): Int =
getAndAdd(-1)
@inline final def getAndAdd(delta: Int): Int = {
val old = value
value = old + delta
old
}
final def incrementAndGet(): Int =
addAndGet(1)
final def decrementAndGet(): Int =
addAndGet(-1)
@inline final def addAndGet(delta: Int): Int = {
val newValue = value + delta
value = newValue
newValue
}
override def toString(): String =
value.toString()
def intValue(): Int = value
def longValue(): Long = value.toLong
def floatValue(): Float = value.toFloat
def doubleValue(): Double = value.toDouble
}
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