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*/ |
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import java.util.concurrent.*; |
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< |
//import jsr166y.*; |
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> |
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public class TimeoutProducerConsumerLoops { |
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static final int NCPUS = Runtime.getRuntime().availableProcessors(); |
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intPool[i] = Integer.valueOf(i); |
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} |
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// max lag between a producer and consumer to avoid |
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// this becoming a GC test rather than queue test. |
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// Used only per-pair to lessen impact on queue sync |
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static final int LAG_MASK = (1 << 12) - 1; |
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static boolean print = false; |
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static int producerSum; |
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final int iters; |
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final BlockingQueue<Integer> queue; |
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final CyclicBarrier barrier; |
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< |
Stage (BlockingQueue<Integer> q, CyclicBarrier b, int iters) { |
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final Phaser lagPhaser; |
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> |
Stage (BlockingQueue<Integer> q, CyclicBarrier b, Phaser s, int iters) { |
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queue = q; |
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barrier = b; |
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lagPhaser = s; |
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this.iters = iters; |
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} |
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} |
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static class Producer extends Stage { |
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Producer(BlockingQueue<Integer> q, CyclicBarrier b, int iters) { |
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super(q, b, iters); |
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Producer(BlockingQueue<Integer> q, CyclicBarrier b, Phaser s, int iters) { |
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super(q, b, s, iters); |
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} |
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public void run() { |
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++i; |
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if (timeout > 1) |
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timeout--; |
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if ((i & LAG_MASK) == LAG_MASK) |
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lagPhaser.arriveAndAwaitAdvance(); |
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} |
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else |
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timeout++; |
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} |
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static class Consumer extends Stage { |
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< |
Consumer(BlockingQueue<Integer> q, CyclicBarrier b, int iters) { |
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< |
super(q, b, iters); |
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> |
Consumer(BlockingQueue<Integer> q, CyclicBarrier b, Phaser s, int iters) { |
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super(q, b, s, iters); |
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} |
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public void run() { |
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++i; |
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if (timeout > 1) |
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--timeout; |
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if ((i & LAG_MASK) == LAG_MASK) |
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lagPhaser.arriveAndAwaitAdvance(); |
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} |
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else |
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++timeout; |
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LoopHelpers.BarrierTimer timer = new LoopHelpers.BarrierTimer(); |
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CyclicBarrier barrier = new CyclicBarrier(npairs * 2 + 1, timer); |
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for (int i = 0; i < npairs; ++i) { |
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< |
pool.execute(new Producer(q, barrier, iters)); |
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< |
pool.execute(new Consumer(q, barrier, iters)); |
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> |
Phaser s = new Phaser(2); |
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pool.execute(new Producer(q, barrier, s, iters)); |
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pool.execute(new Consumer(q, barrier, s, iters)); |
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} |
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barrier.await(); |
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barrier.await(); |