public void CompareExistingValueAndSetNewValue() { AtomicArray <T> ai = new AtomicArray <T>(DEFAULT_COLLECTION_SIZE); for (int i = 0; i < DEFAULT_COLLECTION_SIZE; ++i) { ai.Exchange(i, one); Assert.IsTrue(ai.CompareAndSet(i, one, two)); Assert.IsTrue(ai.CompareAndSet(i, two, m4)); Assert.AreEqual(m4, ai[i]); Assert.IsFalse(ai.CompareAndSet(i, m5, seven)); Assert.IsFalse((seven.Equals(ai[i]))); Assert.IsTrue(ai.CompareAndSet(i, m4, seven)); Assert.AreEqual(seven, ai[i]); } }
public void CompareAndSetInMultipleThreads() { AtomicArray <T> a = new AtomicArray <T>(1); a.Exchange(0, one); Thread t = new Thread(delegate() { while (!a.CompareAndSet(0, two, three)) { Thread.Sleep(Delays.Short); } }); t.Start(); Assert.IsTrue(a.CompareAndSet(0, one, two)); t.Join(Delays.Long); Assert.IsFalse(t.IsAlive); Assert.AreEqual(a[0], three); }