Example usage for java.lang Thread yield

Introduction

In this page you can find the example usage for java.lang Thread yield.

Prototype

public static native void yield();

Source Link

Document

A hint to the scheduler that the current thread is willing to yield its current use of a processor.

Usage

From source file:com.github.lpezet.antiope.metrics.aws.MetricsUploaderThread.java

@Override
public void run() {
    mLogger.info("MetricsUploaderThread running...");
    while (!mCancelled) {
        try {//from  w w  w .  j a  v  a2  s.com
            Iterable<PutMetricDataRequest> oRequests = mQIterator.nextUploadUnits();
            for (PutMetricDataRequest req : oRequests) {
                if (mLogger.isDebugEnabled() && req != null)
                    mLogger.debug("Cloudwatch metric data request: " + req.toString());
                mCloudwatchClient.putMetricData(req);
                Thread.yield();
            }
        } catch (InterruptedException e) {
            if (!mCancelled) {
                mLogger.debug("Unexpected interruption ignored");
            }
        } catch (Throwable t) {
            mLogger.warn("Unexpected condition; soldier on", t);
            Thread.yield();
        }
    }
    mLogger.info("MetricsUploaderThread done.");
}

From source file:com.googlecode.concurrentlinkedhashmap.MemoryLeakTest.java

@Test
public void memoryLeak() throws InterruptedException {
    timeTasks(threads, new Runnable() {
        @Override/*from w w w.ja va 2  s . c  om*/
        public void run() {
            Long id = Thread.currentThread().getId();
            map.put(id, id);
            for (;;) {
                map.get(id);
                Thread.yield();
                LockSupport.parkNanos(1L);
            }
        }
    });
}

From source file:io.appium.java_client.android.AndroidDriverTest.java

private String currentActivity() {
    String currentActivity = null;
    while (currentActivity == null) {
        currentActivity = driver.currentActivity();
        Thread.yield();
    }// w  w w.ja v a2s .  c o  m
    return currentActivity;
}

From source file:com.espertech.esper.core.UpdateDispatchFutureSpin.java

public void execute() {
    if (!earlier.isCompleted) {
        long spinStartTime = timeSourceService.getTimeMillis();

        while (!earlier.isCompleted) {
            Thread.yield();

            long spinDelta = timeSourceService.getTimeMillis() - spinStartTime;
            if (spinDelta > msecTimeout) {
                log.info("Spin wait timeout exceeded in listener dispatch");
                break;
            }//from ww  w  .  j a  v  a  2 s.  co m
        }
    }

    view.execute();
    isCompleted = true;

    earlier = null;
}

From source file:org.esa.s2tbx.dataio.openjpeg.OpenJpegUtils.java

public static CommandOutput runProcess(ProcessBuilder builder) throws InterruptedException, IOException {
    builder.environment().putAll(System.getenv());
    StringBuilder output = new StringBuilder();
    boolean isStopped = false;
    final Process process = builder.start();
    try (BufferedReader outReader = new BufferedReader(new InputStreamReader(process.getInputStream()))) {
        while (!isStopped) {
            while (outReader.ready()) {
                String line = outReader.readLine();
                if (line != null && !line.isEmpty()) {
                    output.append(line);
                }//w  w w  .ja v a 2 s.  c o  m
            }
            if (!process.isAlive()) {
                isStopped = true;
            } else {
                Thread.yield();
            }
        }
        outReader.close();
    }
    int exitCode = process.exitValue();
    //String output = convertStreamToString(process.getInputStream());
    String errorOutput = convertStreamToString(process.getErrorStream());
    return new CommandOutput(exitCode, output.toString(), errorOutput);
}

From source file:com.espertech.esper.core.service.UpdateDispatchFutureSpin.java

public void execute() {
    if (!earlier.isCompleted) {
        long spinStartTime = timeSourceService.getTimeMillis();

        while (!earlier.isCompleted) {
            Thread.yield();

            long spinDelta = timeSourceService.getTimeMillis() - spinStartTime;
            if (spinDelta > msecTimeout) {
                log.info("Spin wait timeout exceeded in listener dispatch for statement '"
                        + view.getStatementResultService().getStatementName() + "'");
                break;
            }//from   w ww. java 2 s. c om
        }
    }

    view.execute();
    isCompleted = true;

    earlier = null;
}

From source file:org.hydracache.data.partitioning.ConsistentHashNodePartitionTestConcurrency.java

private void startTestThread(final ConsistentHashNodePartition<ServerNode> circle,
        final CountDownLatch doneLatch) {
    new Thread() {
        @Override//from w w  w . j a v a2 s . c  o  m
        public void run() {
            try {
                messWithHashRing(circle);

                doneLatch.countDown();
            } catch (Exception e) {
                e.printStackTrace();
                failed = true;
            }
        }

        private void messWithHashRing(final ConsistentHashNodePartition<ServerNode> circle) {
            ServerNode node = new ServerNode(RandomUtils.nextInt(100));
            circle.remove(node);

            Thread.yield();

            ServerNode n = circle.get(RandomStringUtils.randomNumeric(5));
            assertNotNull(n);

            Thread.yield();

            circle.add(node);
        }

    }.start();
}

From source file:coyote.dx.web.TestHtmlWorker.java

@Test
public void setHtmlGet() throws IOException {
    Resource resource = new Resource("http://localhost:" + port + "/data/test.html");
    Response response = resource.request();
    assertNotNull(response);/*from ww w  .j  av a  2s.c  om*/

    while (!response.isComplete()) {
        Thread.yield();
    }

    Document doc = response.getDocument();
    assertNotNull(doc);
    Elements elements = doc.getAllElements();
    System.out.println(doc.toString());
    System.out.println("Retrieved document contains " + elements.size() + " elements");
    assertTrue(elements.size() >= 40);
}

From source file:Model.CacheInMemory.java

@SuppressWarnings("unchecked")
public void cleanup() {

    long now = System.currentTimeMillis();
    ArrayList<K> deleteKey = null;

    synchronized (cacheMap) {
        MapIterator itr = cacheMap.mapIterator();

        deleteKey = new ArrayList<K>((cacheMap.size() / 2) + 1);
        K key = null;//from w  w  w .j a  v  a2  s .  co  m
        CacheObject c = null;

        while (itr.hasNext()) {
            key = (K) itr.next();
            c = (CacheObject) itr.getValue();

            if (c != null && (now > (timeToLive + c.lastAccessed))) {
                deleteKey.add(key);
            }
        }
    }

    for (K key : deleteKey) {
        synchronized (cacheMap) {
            cacheMap.remove(key);
        }

        Thread.yield();
    }
}

From source file:org.fcrepo.modeshape.ModeshapeServer.java

private void start(boolean benchEnabled, int num, long size, int threads) throws Exception {
    RepositoryConfiguration cfg = RepositoryConfiguration
            .read(this.getClass().getClassLoader().getResourceAsStream("repository.json"), "repo");
    ModeShapeEngine engine = new ModeShapeEngine();
    engine.start();//from w w w. jav a 2 s  .  co m
    Repository repo = engine.deploy(cfg);
    repo.login();
    while (engine.getRepositoryState("repo") != ModeShapeEngine.State.RUNNING) {
        Thread.yield();
    }
    System.out.println("Modeshape is up and running.");
    if (benchEnabled) {
        System.out.println("Enter 'S' to start the tests:");
        Scanner scan = new Scanner(System.in);
        while (!scan.hasNextLine()) {
            Thread.yield();
        }
        String input = scan.next();
        if (input.equalsIgnoreCase("s")) {
            System.out.println("starting tests");
            BenchTool tool = new BenchTool();
            tool.runBenchMark(repo, num, size, threads);
        } else {
            System.out.println("stopping server");
        }
    }
}