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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/licenses/publicdomain |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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} |
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/** |
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* getAndSet returns previous value and sets to given value at given index |
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* getAndSet returns previous value and sets to given value at given index |
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*/ |
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public void testGetAndSet() { |
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AtomicLongArray ai = new AtomicLongArray(SIZE); |
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} |
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/** |
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* getAndAdd returns previous value and adds given value |
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* getAndAdd returns previous value and adds given value |
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*/ |
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public void testGetAndAdd() { |
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AtomicLongArray ai = new AtomicLongArray(SIZE); |
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} |
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/** |
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* addAndGet adds given value to current, and returns current value |
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* addAndGet adds given value to current, and returns current value |
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*/ |
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public void testAddAndGet() { |
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AtomicLongArray ai = new AtomicLongArray(SIZE); |
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static final long COUNTDOWN = 100000; |
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class Counter implements Runnable { |
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class Counter extends CheckedRunnable { |
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final AtomicLongArray ai; |
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volatile long counts; |
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Counter(AtomicLongArray a) { ai = a; } |
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public void run() { |
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public void realRun() { |
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for (;;) { |
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boolean done = true; |
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for (int i = 0; i < ai.length(); ++i) { |
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long v = ai.get(i); |
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threadAssertTrue(v >= 0); |
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assertTrue(v >= 0); |
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if (v != 0) { |
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done = false; |
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if (ai.compareAndSet(i, v, v-1)) |