Java Code Examples for java.util.concurrent.atomic.AtomicIntegerFieldUpdater#newUpdater()

The following examples show how to use java.util.concurrent.atomic.AtomicIntegerFieldUpdater#newUpdater() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: ConcurrentMapOpsTest.java From gemfirexd-oss with Apache License 2.0

5 votes

/** compare raw numbers for atomic ops using JDK vs unsafe wrapper classes */
public void SW_testCompareAtomicOps() {

  final AtomicIntegerFieldUpdater<ConcurrentMapOpsTest> intJDKCounter =
      AtomicIntegerFieldUpdater.newUpdater(ConcurrentMapOpsTest.class,
          "intJDKCounter");
  final AtomicLongFieldUpdater<ConcurrentMapOpsTest> longJDKCounter =
      AtomicLongFieldUpdater.newUpdater(ConcurrentMapOpsTest.class,
          "longJDKCounter");
  final AtomicReferenceFieldUpdater<ConcurrentMapOpsTest, LongRef>
      refJDKCounter = AtomicReferenceFieldUpdater.newUpdater(
          ConcurrentMapOpsTest.class, LongRef.class, "refJDKCounter");

  final AtomicIntegerFieldUpdater<ConcurrentMapOpsTest> intUnsafeCounter =
      AtomicUpdaterFactory.newIntegerFieldUpdater(ConcurrentMapOpsTest.class,
          "intUnsafeCounter");
  final AtomicLongFieldUpdater<ConcurrentMapOpsTest> longUnsafeCounter =
      AtomicUpdaterFactory.newLongFieldUpdater(ConcurrentMapOpsTest.class,
          "longUnsafeCounter");
  final AtomicReferenceFieldUpdater<ConcurrentMapOpsTest, LongRef>
      refUnsafeCounter = AtomicUpdaterFactory.newReferenceFieldUpdater(
          ConcurrentMapOpsTest.class, LongRef.class, "refUnsafeCounter");

  // some warmups
  runAtomicOps(1, 50000, intJDKCounter, longJDKCounter, refJDKCounter,
      intUnsafeCounter, longUnsafeCounter, refUnsafeCounter);

  // timed runs with single threads to see the raw overheads with no
  // concurrency (as we would expect in most usual cases)
  runAtomicOps(1, 50000000, intJDKCounter, longJDKCounter, refJDKCounter,
      intUnsafeCounter, longUnsafeCounter, refUnsafeCounter);

  // now with concurrency
  runAtomicOps(5, 2000000, intJDKCounter, longJDKCounter, refJDKCounter,
      intUnsafeCounter, longUnsafeCounter, refUnsafeCounter);
}

Example 2

Source File: SerializingExecutor.java From grpc-java with Apache License 2.0

5 votes

private static AtomicHelper getAtomicHelper() {
  AtomicHelper helper;
  try {
    helper =
        new FieldUpdaterAtomicHelper(
            AtomicIntegerFieldUpdater.newUpdater(SerializingExecutor.class, "runState"));
  } catch (Throwable t) {
    log.log(Level.SEVERE, "FieldUpdaterAtomicHelper failed", t);
    helper = new SynchronizedAtomicHelper();
  }
  return helper;
}

Example 3

Source File: AtomicFieldUpdaterUtil.java From simple-netty-source with Apache License 2.0

5 votes

static <T> AtomicIntegerFieldUpdater<T> newIntUpdater(Class<T> tclass, String fieldName) {
    if (AVAILABLE) {
        return AtomicIntegerFieldUpdater.newUpdater(tclass, fieldName);
    } else {
        return null;
    }
}

Example 4

Source File: Metrics.java From mangooio with Apache License 2.0

5 votes

public void reset() {
    this.maxRequestTimeUpdater = AtomicIntegerFieldUpdater.newUpdater(Metrics.class, "maxRequestTime");
    this.minRequestTimeUpdater = AtomicIntegerFieldUpdater.newUpdater(Metrics.class, "minRequestTime");
    this.totalRequestTimeUpdater = AtomicLongFieldUpdater.newUpdater(Metrics.class, "totalRequestTime");
    this.totalRequestsUpdater = AtomicLongFieldUpdater.newUpdater(Metrics.class, "totalRequests");
    this.responseCount = new ConcurrentHashMap<>(INITIAL_CAPACITY, LOAD_FACTOR, CONCURRENCY_LEVEL);
    this.dataSend = new AtomicLong();
    this.avgRequestTime = 0;
    this.totalRequestTime = 0;
    this.totalRequests = 0;
    this.maxRequestTime = -1;
    this.minRequestTime = -1;
}

Example 5

Source File: AtomicUpdaterFactory.java From gemfirexd-oss with Apache License 2.0

5 votes

/**
 * Creates and returns an updater for objects with the given integer field.
 */
public static <T> AtomicIntegerFieldUpdater<T> newIntegerFieldUpdater(
    Class<T> tclass, String fieldName) {
  if (UnsafeHolder.hasUnsafe()) {
    return new UnsafeAtomicIntegerFieldUpdater<T>(tclass, fieldName);
  }
  else {
    return AtomicIntegerFieldUpdater.newUpdater(tclass, fieldName);
  }
}

Example 6

Source File: ConcurrentMapOpsTest.java From gemfirexd-oss with Apache License 2.0

5 votes

/** compare raw numbers for atomic ops using JDK vs unsafe wrapper classes */
public void SW_testCompareAtomicOps() {

  final AtomicIntegerFieldUpdater<ConcurrentMapOpsTest> intJDKCounter =
      AtomicIntegerFieldUpdater.newUpdater(ConcurrentMapOpsTest.class,
          "intJDKCounter");
  final AtomicLongFieldUpdater<ConcurrentMapOpsTest> longJDKCounter =
      AtomicLongFieldUpdater.newUpdater(ConcurrentMapOpsTest.class,
          "longJDKCounter");
  final AtomicReferenceFieldUpdater<ConcurrentMapOpsTest, LongRef>
      refJDKCounter = AtomicReferenceFieldUpdater.newUpdater(
          ConcurrentMapOpsTest.class, LongRef.class, "refJDKCounter");

  final AtomicIntegerFieldUpdater<ConcurrentMapOpsTest> intUnsafeCounter =
      AtomicUpdaterFactory.newIntegerFieldUpdater(ConcurrentMapOpsTest.class,
          "intUnsafeCounter");
  final AtomicLongFieldUpdater<ConcurrentMapOpsTest> longUnsafeCounter =
      AtomicUpdaterFactory.newLongFieldUpdater(ConcurrentMapOpsTest.class,
          "longUnsafeCounter");
  final AtomicReferenceFieldUpdater<ConcurrentMapOpsTest, LongRef>
      refUnsafeCounter = AtomicUpdaterFactory.newReferenceFieldUpdater(
          ConcurrentMapOpsTest.class, LongRef.class, "refUnsafeCounter");

  // some warmups
  runAtomicOps(1, 50000, intJDKCounter, longJDKCounter, refJDKCounter,
      intUnsafeCounter, longUnsafeCounter, refUnsafeCounter);

  // timed runs with single threads to see the raw overheads with no
  // concurrency (as we would expect in most usual cases)
  runAtomicOps(1, 50000000, intJDKCounter, longJDKCounter, refJDKCounter,
      intUnsafeCounter, longUnsafeCounter, refUnsafeCounter);

  // now with concurrency
  runAtomicOps(5, 2000000, intJDKCounter, longJDKCounter, refJDKCounter,
      intUnsafeCounter, longUnsafeCounter, refUnsafeCounter);
}

Example 7

Source File: AtomicUpdaterFactory.java From gemfirexd-oss with Apache License 2.0

5 votes

/**
 * Creates and returns an updater for objects with the given integer field.
 */
public static <T> AtomicIntegerFieldUpdater<T> newIntegerFieldUpdater(
    Class<T> tclass, String fieldName) {
  if (UnsafeHolder.hasUnsafe()) {
    return new UnsafeAtomicIntegerFieldUpdater<T>(tclass, fieldName);
  }
  else {
    return AtomicIntegerFieldUpdater.newUpdater(tclass, fieldName);
  }
}

Example 8

Source File: SerializingExecutor.java From grpc-nebula-java with Apache License 2.0

5 votes

private static AtomicHelper getAtomicHelper() {
  AtomicHelper helper;
  try {
    helper =
        new FieldUpdaterAtomicHelper(
            AtomicIntegerFieldUpdater.newUpdater(SerializingExecutor.class, "runState"));
  } catch (Throwable t) {
    log.log(Level.SEVERE, "FieldUpdaterAtomicHelper failed", t);
    helper = new SynchronizedAtomicHelper();
  }
  return helper;
}

Example 9

Source File: AtomicIntegerFieldUpdaterTest.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

public void checkPrivateAccess(AtomicIntegerFieldUpdaterTest obj) {
    try {
        AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a =
            AtomicIntegerFieldUpdater.newUpdater
            (AtomicIntegerFieldUpdaterTest.class, "privateField");
        throw new AssertionError("should throw");
    } catch (RuntimeException success) {
        assertNotNull(success.getCause());
    }
}

Example 10

Source File: AtomicIntegerFieldUpdaterTest.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

public void checkPackageAccess(AtomicIntegerFieldUpdaterTest obj) {
    obj.x = 72;
    AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a =
        AtomicIntegerFieldUpdater.newUpdater
        (AtomicIntegerFieldUpdaterTest.class, "x");
    assertEquals(72, a.get(obj));
    assertTrue(a.compareAndSet(obj, 72, 73));
    assertEquals(73, a.get(obj));
}

Example 11

Source File: AtomicIntegerFieldUpdaterTest.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

public void checkCompareAndSetProtectedSub() {
    AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a =
        AtomicIntegerFieldUpdater.newUpdater
        (AtomicIntegerFieldUpdaterTest.class, "protectedField");
    this.protectedField = 1;
    assertTrue(a.compareAndSet(this, 1, 2));
    assertTrue(a.compareAndSet(this, 2, -4));
    assertEquals(-4, a.get(this));
    assertFalse(a.compareAndSet(this, -5, 7));
    assertEquals(-4, a.get(this));
    assertTrue(a.compareAndSet(this, -4, 7));
    assertEquals(7, a.get(this));
}

Example 12

Source File: AtomicIntegerFieldUpdaterTest.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

public void checkPrivateAccess() {
    try {
        AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a =
            AtomicIntegerFieldUpdater.newUpdater
            (AtomicIntegerFieldUpdaterTest.class, "privateField");
        shouldThrow();
    } catch (RuntimeException success) {
        assertNotNull(success.getCause());
    }
}

Example 13

Source File: AtomicIntegerFieldUpdaterDemo.java From JavaCommon with Apache License 2.0

5 votes

public static void main(String[] args) {
    Person person = new Person("zhangsan", 11, 170);
    person.setHobby(new Hobby("打球", "足球，篮球"));
    AtomicIntegerFieldUpdater<Person> atomicIntegerFieldUpdater = AtomicIntegerFieldUpdater.newUpdater(Person.class, "age");
    atomicIntegerFieldUpdater.addAndGet(person, 12);

    AtomicLongFieldUpdater<Person> atomicLongFieldUpdater = AtomicLongFieldUpdater.newUpdater(Person.class, "height");
    atomicLongFieldUpdater.addAndGet(person, 180);

    AtomicReferenceFieldUpdater<Person, Hobby> atomicReferenceFieldUpdater = AtomicReferenceFieldUpdater.newUpdater(Person.class, Hobby.class, "hobby");
    atomicReferenceFieldUpdater.getAndSet(person, new Hobby("打球", "排球，羽毛球"));

}

Example 14

Source File: AtomicIntegerFieldUpdaterTest.java From openjdk-jdk9 with GNU General Public License v2.0

4 votes

AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> updaterFor(String fieldName) {
    return AtomicIntegerFieldUpdater.newUpdater
        (AtomicIntegerFieldUpdaterTest.class, fieldName);
}

Example 15

Source File: Atomic8Test.java From openjdk-jdk9 with GNU General Public License v2.0

4 votes

AtomicIntegerFieldUpdater<Atomic8Test> anIntFieldUpdater() {
    return AtomicIntegerFieldUpdater.newUpdater
        (Atomic8Test.class, "anIntField");
}

Example 16

Source File: Atomic8Test.java From j2objc with Apache License 2.0

4 votes

AtomicIntegerFieldUpdater anIntFieldUpdater() {
    return AtomicIntegerFieldUpdater.newUpdater
        (Atomic8Test.class, "anIntField");
}

Example 17

Source File: AtomicIntegerFieldUpdaterTest.java From j2objc with Apache License 2.0

4 votes

AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> updaterFor(String fieldName) {
    return AtomicIntegerFieldUpdater.newUpdater
        (AtomicIntegerFieldUpdaterTest.class, fieldName);
}

Example 18

Source File: AtomicIntegerFieldUpdaterTest.java From openjdk-systemtest with Apache License 2.0

4 votes

/**
 * Basic tests of the API : Simple function calls to exercise all of the functions listed in the API
 * specification for the AtomicIntegerFieldUpdater class.
 */	
public void testAPI()
{
			
	// =================================================================================
	// Create instances of AtomicIntegerFieldUpdater to work with
	
	for(int i = 0; i < updaters.length; i++)
	{
		updaters[i] = AtomicIntegerFieldUpdater.newUpdater(AtomicTestObject.class, "volatileInt");
	}

	// =================================================================================
	// API Testing
	
	assertEquals("1 : get()", 42, getRandomUpdater().get(testObject1));
	assertEquals("2 : get()", getRandomUpdater().get(testObject1), getRandomUpdater().get(testObject2));
	assertEquals("3 : get()", getRandomUpdater().get(testObject1), getRandomUpdater().get(testObject1));
	assertEquals("4 : get()", getRandomUpdater().get(testObject2), getRandomUpdater().get(testObject2));
	
	assertEquals("5 : addAndGet()", 43, getRandomUpdater().addAndGet(testObject1, 1));
	assertEquals("6 : get() addAndGet()", getRandomUpdater().get(testObject1), getRandomUpdater().addAndGet(testObject2, 1));
	assertEquals("7 : addAndGet()", 0, getRandomUpdater().addAndGet(testObject1, -43));
	assertEquals("8 : addAndGet() get()", 43, getRandomUpdater().addAndGet(testObject1, getRandomUpdater().get(testObject2)));
	assertEquals("9 : getAndAdd()", 43, getRandomUpdater().getAndAdd(testObject2, 43));
	assertEquals("10 : addAndGet()", 43, getRandomUpdater().addAndGet(testObject2, -43));
	assertEquals("11 : getAndAdd() addAndGet()", getRandomUpdater().getAndAdd(testObject2, 0), getRandomUpdater().addAndGet(testObject2, 0));
	assertEquals("12 : addAndGet() getAndAdd()", getRandomUpdater().addAndGet(testObject1, Integer.MAX_VALUE), getRandomUpdater().getAndAdd(testObject2, 0) + Integer.MAX_VALUE);
	assertEquals("13 : addAndGet() getAndAdd()", getRandomUpdater().addAndGet(testObject1, -Integer.MAX_VALUE), getRandomUpdater().getAndAdd(testObject2, 0));
	
	assertEquals("14 : decrementAndGet()", 42, getRandomUpdater().decrementAndGet(testObject1));
	assertEquals("15 : get() decrementAndGet()", getRandomUpdater().get(testObject1), getRandomUpdater().decrementAndGet(testObject2));
	assertEquals("16 : getAndDecrement() incrementAndGet()", getRandomUpdater().getAndDecrement(testObject1), getRandomUpdater().incrementAndGet(testObject1));
	assertEquals("17 : decrementAndGet() getAndIncrement()", getRandomUpdater().decrementAndGet(testObject2), getRandomUpdater().getAndIncrement(testObject2));
	
	getRandomUpdater().set(testObject1, Integer.MIN_VALUE);
	assertEquals("18 : set() get()", Integer.MIN_VALUE, getRandomUpdater().get(testObject1));
	assertEquals("19 : decrementAndGet()", Integer.MAX_VALUE, getRandomUpdater().decrementAndGet(testObject1));
	getRandomUpdater().set(testObject1, 42);
	assertEquals("20 : set() get()", 42, getRandomUpdater().get(testObject2));
	
	getRandomUpdater().set(testObject1, Integer.MAX_VALUE);
	assertEquals("21 : set() get()", Integer.MAX_VALUE, getRandomUpdater().get(testObject1));
	assertEquals("22 : incrementAndGet()", Integer.MIN_VALUE, getRandomUpdater().incrementAndGet(testObject1));
	getRandomUpdater().set(testObject1, 42);
	assertEquals("23 : set() get()", 42, getRandomUpdater().get(testObject2));
	
	assertEquals("24 : compareAndSet()", true, getRandomUpdater().compareAndSet(testObject1, 42, -2147483648));
	assertEquals("25 : compareAndSet()", true, getRandomUpdater().compareAndSet(testObject1, Integer.MIN_VALUE, 42));
	assertEquals("26 : compareAndSet()", false, getRandomUpdater().compareAndSet(testObject1, 0, 42));
	
	assertEquals("27 : compareAndSet()", true, getRandomUpdater().compareAndSet(testObject2, 42, 2147483647));
	assertEquals("28 : compareAndSet()", true, getRandomUpdater().compareAndSet(testObject2, Integer.MAX_VALUE, 42));
	assertEquals("29 : compareAndSet()", false, getRandomUpdater().compareAndSet(testObject2, 0, 42));

	assertEquals("30 : get() get()", getRandomUpdater().get(testObject1) == 42, getRandomUpdater().get(testObject2) == 42);
	assertEquals("31 : compareAndSet() get() incrementAndGet()", true, getRandomUpdater().compareAndSet(testObject1, getRandomUpdater().get(testObject1), getRandomUpdater().incrementAndGet(testObject2)));
	assertEquals("32 : get() get()", getRandomUpdater().get(testObject1), getRandomUpdater().get(testObject2));
	assertEquals("33 : getAndDecrement() incrementAndGet()", getRandomUpdater().getAndDecrement(testObject1), getRandomUpdater().incrementAndGet(testObject1));
	assertEquals("34 : andAndGet() get() addAndGet() get()", getRandomUpdater().addAndGet(testObject1, getRandomUpdater().get(testObject1)), getRandomUpdater().addAndGet(testObject2, getRandomUpdater().get(testObject2)));
	assertEquals("35 : compareAndSet() get()", true, getRandomUpdater().compareAndSet(testObject1, getRandomUpdater().get(testObject1), 42));
	assertEquals("36 : compareAndSet() get()", true, getRandomUpdater().compareAndSet(testObject2, getRandomUpdater().get(testObject2), 42));
}

Example 19

Source File: Reflect.java From bazel with Apache License 2.0

4 votes

void keep6() throws SecurityException {
  AtomicIntegerFieldUpdater.newUpdater(Reflect2.class, "fieldPublic");
}