public void GetAndSet()
{
AtomicReference <T> ai = new AtomicReference <T>(one);
Assert.AreEqual(one, ai.Exchange(zero));
Assert.AreEqual(zero, ai.Exchange(m10));
Assert.AreEqual(m10, ai.Exchange(one));
}
/// <summary>
/// Unconditionally sets both the value and mark if any of them are
/// not equal. Method <see cref="AreEqual"/> is used to compare the
/// value.
/// </summary>
/// <param name="newValue">the new value
/// </param>
/// <param name="newMark">the new value for the mark
/// </param>
public void SetNewAtomicValue(T newValue, bool newMark)
{
ValueBooleanPair current = Pair;
if (!AreEqual(newValue, current._value) || newMark != current._markBit)
{
_atomicReference.Exchange(new ValueBooleanPair(newValue, newMark));
}
}
/// <summary>
/// Atomically sets to the given value and returns the previous value.
/// </summary>
/// <param name="newValue">
/// The new value for the instance.
/// </param>
/// <returns>
/// the previous value of the instance.
/// </returns>
public T Exchange(T newValue)
{
return(_atomicReference.Exchange(new ValueHolder <T>(newValue)).Value);
}