Java Code Examples for java.util.concurrent.atomic.AtomicIntegerFieldUpdater#newUpdater()
The following examples show how to use
java.util.concurrent.atomic.AtomicIntegerFieldUpdater#newUpdater() .
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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");
}
