java.util.concurrent.atomic.DoubleAdder Java Examples

The following examples show how to use java.util.concurrent.atomic.DoubleAdder. 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: DoubleAdderTest.java    From j2objc with Apache License 2.0 6 votes vote down vote up 
/**
 * adds by multiple threads produce correct sum
 */
public void testAddAndSumMT() throws Throwable {
    final int incs = 1000000;
    final int nthreads = 4;
    final ExecutorService pool = Executors.newCachedThreadPool();
    DoubleAdder a = new DoubleAdder();
    CyclicBarrier barrier = new CyclicBarrier(nthreads + 1);
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, barrier, incs));
    barrier.await();
    barrier.await();
    double total = (long)nthreads * incs;
    double sum = a.sum();
    assertEquals(sum, total);
    pool.shutdown();
}
Example #2
Source File: DoubleAdderDemo.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
Example #3
Source File: Serial.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
Example #4
Source File: Serial.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
Example #5
Source File: DoubleAdderTest.java    From j2objc with Apache License 2.0 5 votes vote down vote up 
/**
 * toString returns current value.
 */
public void testToString() {
    DoubleAdder ai = new DoubleAdder();
    assertEquals(Double.toString(0.0), ai.toString());
    ai.add(1.0);
    assertEquals(Double.toString(1.0), ai.toString());
}
Example #6
Source File: DoubleAdderDemo.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
static void adderTest(int nthreads, int incs) {
    System.out.print("DoubleAdder  ");
    Phaser phaser = new Phaser(nthreads + 1);
    DoubleAdder a = new DoubleAdder();
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, phaser, incs));
    report(nthreads, incs, timeTasks(phaser), a.sum());
}
Example #7
Source File: AdderSerializer.java    From uavstack with Apache License 2.0 5 votes vote down vote up 
public void write(JSONSerializer serializer, Object object, Object fieldName, Type fieldType, int features) throws IOException {
    SerializeWriter out = serializer.out;
    if (object instanceof LongAdder) {
        out.writeFieldValue('{', "value", ((LongAdder) object).longValue());
        out.write('}');
    } else  if (object instanceof DoubleAdder) {
        out.writeFieldValue('{', "value", ((DoubleAdder) object).doubleValue());
        out.write('}');
    }
}
Example #8
Source File: DoubleAdderDemo.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up 
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
Example #9
Source File: DoubleAdderDemo.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
Example #10
Source File: Serial.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up 
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
Example #11
Source File: DoubleAdderDemo.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
static void adderTest(int nthreads, int incs) {
    System.out.print("DoubleAdder  ");
    Phaser phaser = new Phaser(nthreads + 1);
    DoubleAdder a = new DoubleAdder();
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, phaser, incs));
    report(nthreads, incs, timeTasks(phaser), a.sum());
}
Example #12
Source File: DoubleAdderDemo.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
Example #13
Source File: DoubleAdderDemo.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
Example #14
Source File: Serial.java    From openjdk-8 with GNU General Public License v2.0 5 votes vote down vote up 
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
Example #15
Source File: DoubleAdderDemo.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
static void adderTest(int nthreads, int incs) {
    System.out.print("DoubleAdder  ");
    Phaser phaser = new Phaser(nthreads + 1);
    DoubleAdder a = new DoubleAdder();
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, phaser, incs));
    report(nthreads, incs, timeTasks(phaser), a.sum());
}
Example #16
Source File: Serial.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up 
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
Example #17
Source File: Serial.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
Example #18
Source File: DoubleAdderDemo.java    From jdk8u-dev-jdk with GNU General Public License v2.0 5 votes vote down vote up 
public void run() {
    phaser.arriveAndAwaitAdvance();
    phaser.arriveAndAwaitAdvance();
    DoubleAdder a = adder;
    for (int i = 0; i < incs; ++i)
        a.add(1.0);
    result = a.sum();
    phaser.arrive();
}
Example #19
Source File: DoubleAdderDemo.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up 
static void adderTest(int nthreads, int incs) {
    System.out.print("DoubleAdder  ");
    Phaser phaser = new Phaser(nthreads + 1);
    DoubleAdder a = new DoubleAdder();
    for (int i = 0; i < nthreads; ++i)
        pool.execute(new AdderTask(a, phaser, incs));
    report(nthreads, incs, timeTasks(phaser), a.sum());
}
Example #20
Source File: DoubleAdderTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
public void run() {
    try {
        barrier.await();
        DoubleAdder a = adder;
        for (int i = 0; i < incs; ++i)
            a.add(1.0);
        result = a.sum();
        barrier.await();
    } catch (Throwable t) { throw new Error(t); }
}
Example #21
Source File: DoubleAdderTest.java    From j2objc with Apache License 2.0 5 votes vote down vote up 
/**
 * a deserialized serialized adder holds same value
 */
public void testSerialization() throws Exception {
    DoubleAdder x = new DoubleAdder();
    DoubleAdder y = serialClone(x);
    assertNotSame(x, y);
    x.add(-22.0);
    DoubleAdder z = serialClone(x);
    assertEquals(-22.0, x.sum());
    assertEquals(0.0, y.sum());
    assertEquals(-22.0, z.sum());
}
Example #22
Source File: Serial.java    From jdk8u-dev-jdk with GNU General Public License v2.0 5 votes vote down vote up 
static void testDoubleAdder() {
    DoubleAdder a = new DoubleAdder();
    a.add(20.1d);
    DoubleAdder result = echo(a);
    if (result.doubleValue() != a.doubleValue())
        throw new RuntimeException("Unexpected doubleValue");

    checkSerialClassName(a, "java.util.concurrent.atomic.DoubleAdder$SerializationProxy");
}
Example #23
Source File: DoubleAdderTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * floatValue returns current value.
 */
public void testFloatValue() {
    DoubleAdder ai = new DoubleAdder();
    assertEquals(0.0f, ai.floatValue());
    ai.add(1.0);
    assertEquals(1.0f, ai.floatValue());
}
Example #24
Source File: DoubleAdderTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * longValue returns current value.
 */
public void testLongValue() {
    DoubleAdder ai = new DoubleAdder();
    assertEquals(0, ai.longValue());
    ai.add(1.0);
    assertEquals(1, ai.longValue());
}
Example #25
Source File: DoubleAdderTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * intValue returns current value.
 */
public void testIntValue() {
    DoubleAdder ai = new DoubleAdder();
    assertEquals(0, ai.intValue());
    ai.add(1.0);
    assertEquals(1, ai.intValue());
}
Example #26
Source File: DoubleAdderTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * toString returns current value.
 */
public void testToString() {
    DoubleAdder ai = new DoubleAdder();
    assertEquals(Double.toString(0.0), ai.toString());
    ai.add(1.0);
    assertEquals(Double.toString(1.0), ai.toString());
}
Example #27
Source File: DoubleAdderTest.java    From j2objc with Apache License 2.0 5 votes vote down vote up 
/**
 * sumThenReset() returns sum; subsequent sum() returns zero
 */
public void testSumThenReset() {
    DoubleAdder ai = new DoubleAdder();
    ai.add(2.0);
    assertEquals(2.0, ai.sum());
    assertEquals(2.0, ai.sumThenReset());
    assertEquals(0.0, ai.sum());
}
Example #28
Source File: DoubleAdderTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * sumThenReset() returns sum; subsequent sum() returns zero
 */
public void testSumThenReset() {
    DoubleAdder ai = new DoubleAdder();
    ai.add(2.0);
    assertEquals(2.0, ai.sum());
    assertEquals(2.0, ai.sumThenReset());
    assertEquals(0.0, ai.sum());
}
Example #29
Source File: DoubleAdderTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * reset() causes subsequent sum() to return zero
 */
public void testReset() {
    DoubleAdder ai = new DoubleAdder();
    ai.add(2.0);
    assertEquals(2.0, ai.sum());
    ai.reset();
    assertEquals(0.0, ai.sum());
}
Example #30
Source File: DoubleAdderTest.java    From j2objc with Apache License 2.0 5 votes vote down vote up 
/**
 * doubleValue returns current value.
 */
public void testDoubleValue() {
    DoubleAdder ai = new DoubleAdder();
    assertEquals(0.0, ai.doubleValue());
    ai.add(1.0);
    assertEquals(1.0, ai.doubleValue());
}