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* Pat Fisher, Mike Judd. |
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*/ |
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– |
import java.util.concurrent.atomic.*; |
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.atomic.AtomicLongFieldUpdater; |
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public class AtomicLongFieldUpdaterTest extends JSR166TestCase { |
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volatile long x = 0; |
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return; |
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} |
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x = 1; |
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assertEquals(1,a.get(this)); |
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a.set(this,2); |
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assertEquals(2,a.get(this)); |
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a.set(this,-3); |
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assertEquals(-3,a.get(this)); |
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assertEquals(1, a.get(this)); |
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a.set(this, 2); |
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assertEquals(2, a.get(this)); |
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a.set(this, -3); |
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assertEquals(-3, a.get(this)); |
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} |
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/** |
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return; |
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} |
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x = 1; |
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assertEquals(1,a.get(this)); |
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a.lazySet(this,2); |
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assertEquals(2,a.get(this)); |
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a.lazySet(this,-3); |
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assertEquals(-3,a.get(this)); |
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assertEquals(1, a.get(this)); |
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a.lazySet(this, 2); |
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assertEquals(2, a.get(this)); |
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a.lazySet(this, -3); |
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assertEquals(-3, a.get(this)); |
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} |
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/** |
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return; |
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} |
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x = 1; |
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assertTrue(a.compareAndSet(this,1,2)); |
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assertTrue(a.compareAndSet(this,2,-4)); |
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assertEquals(-4,a.get(this)); |
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assertFalse(a.compareAndSet(this,-5,7)); |
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assertEquals(-4,a.get(this)); |
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assertTrue(a.compareAndSet(this,-4,7)); |
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assertEquals(7,a.get(this)); |
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assertTrue(a.compareAndSet(this, 1, 2)); |
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assertTrue(a.compareAndSet(this, 2, -4)); |
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assertEquals(-4, a.get(this)); |
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assertFalse(a.compareAndSet(this, -5, 7)); |
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assertEquals(-4, a.get(this)); |
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assertTrue(a.compareAndSet(this, -4, 7)); |
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assertEquals(7, a.get(this)); |
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} |
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/** |
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assertTrue(a.compareAndSet(this, 1, 2)); |
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t.join(LONG_DELAY_MS); |
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assertFalse(t.isAlive()); |
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assertEquals(a.get(this), 3); |
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assertEquals(3, a.get(this)); |
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} |
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/** |
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return; |
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} |
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x = 1; |
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while (!a.weakCompareAndSet(this,1,2)); |
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while (!a.weakCompareAndSet(this,2,-4)); |
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assertEquals(-4,a.get(this)); |
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while (!a.weakCompareAndSet(this,-4,7)); |
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assertEquals(7,a.get(this)); |
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while (!a.weakCompareAndSet(this, 1, 2)); |
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while (!a.weakCompareAndSet(this, 2, -4)); |
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assertEquals(-4, a.get(this)); |
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while (!a.weakCompareAndSet(this, -4, 7)); |
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assertEquals(7, a.get(this)); |
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} |
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/** |
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return; |
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} |
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x = 1; |
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assertEquals(1,a.getAndSet(this, 0)); |
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assertEquals(0,a.getAndSet(this,-10)); |
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assertEquals(-10,a.getAndSet(this,1)); |
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assertEquals(1, a.getAndSet(this, 0)); |
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assertEquals(0, a.getAndSet(this, -10)); |
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assertEquals(-10, a.getAndSet(this, 1)); |
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} |
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/** |
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return; |
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} |
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x = 1; |
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assertEquals(1,a.getAndAdd(this,2)); |
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assertEquals(3,a.get(this)); |
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assertEquals(3,a.getAndAdd(this,-4)); |
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assertEquals(-1,a.get(this)); |
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assertEquals(1, a.getAndAdd(this, 2)); |
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assertEquals(3, a.get(this)); |
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assertEquals(3, a.getAndAdd(this, -4)); |
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assertEquals(-1, a.get(this)); |
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} |
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/** |
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return; |
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} |
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x = 1; |
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assertEquals(1,a.getAndDecrement(this)); |
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assertEquals(0,a.getAndDecrement(this)); |
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assertEquals(-1,a.getAndDecrement(this)); |
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assertEquals(1, a.getAndDecrement(this)); |
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assertEquals(0, a.getAndDecrement(this)); |
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assertEquals(-1, a.getAndDecrement(this)); |
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} |
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/** |
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return; |
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} |
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x = 1; |
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assertEquals(1,a.getAndIncrement(this)); |
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assertEquals(2,a.get(this)); |
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a.set(this,-2); |
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assertEquals(-2,a.getAndIncrement(this)); |
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assertEquals(-1,a.getAndIncrement(this)); |
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assertEquals(0,a.getAndIncrement(this)); |
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assertEquals(1,a.get(this)); |
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assertEquals(1, a.getAndIncrement(this)); |
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assertEquals(2, a.get(this)); |
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a.set(this, -2); |
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assertEquals(-2, a.getAndIncrement(this)); |
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assertEquals(-1, a.getAndIncrement(this)); |
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assertEquals(0, a.getAndIncrement(this)); |
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assertEquals(1, a.get(this)); |
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} |
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/** |
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return; |
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} |
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x = 1; |
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assertEquals(3,a.addAndGet(this,2)); |
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assertEquals(3,a.get(this)); |
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assertEquals(-1,a.addAndGet(this,-4)); |
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assertEquals(-1,a.get(this)); |
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assertEquals(3, a.addAndGet(this, 2)); |
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assertEquals(3, a.get(this)); |
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assertEquals(-1, a.addAndGet(this, -4)); |
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assertEquals(-1, a.get(this)); |
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} |
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/** |
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return; |
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} |
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x = 1; |
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assertEquals(0,a.decrementAndGet(this)); |
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assertEquals(-1,a.decrementAndGet(this)); |
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assertEquals(-2,a.decrementAndGet(this)); |
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assertEquals(-2,a.get(this)); |
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assertEquals(0, a.decrementAndGet(this)); |
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assertEquals(-1, a.decrementAndGet(this)); |
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assertEquals(-2, a.decrementAndGet(this)); |
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assertEquals(-2, a.get(this)); |
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} |
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/** |
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return; |
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} |
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x = 1; |
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assertEquals(2,a.incrementAndGet(this)); |
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assertEquals(2,a.get(this)); |
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a.set(this,-2); |
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assertEquals(-1,a.incrementAndGet(this)); |
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assertEquals(0,a.incrementAndGet(this)); |
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assertEquals(1,a.incrementAndGet(this)); |
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assertEquals(1,a.get(this)); |
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assertEquals(2, a.incrementAndGet(this)); |
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assertEquals(2, a.get(this)); |
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a.set(this, -2); |
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assertEquals(-1, a.incrementAndGet(this)); |
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assertEquals(0, a.incrementAndGet(this)); |
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assertEquals(1, a.incrementAndGet(this)); |
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assertEquals(1, a.get(this)); |
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} |
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} |