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Java StampedLock.writeLock方法代碼示例

本文整理匯總了Java中java.util.concurrent.locks.StampedLock.writeLock方法的典型用法代碼示例。如果您正苦於以下問題：Java StampedLock.writeLock方法的具體用法？Java StampedLock.writeLock怎麽用？Java StampedLock.writeLock使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類java.util.concurrent.locks.StampedLock的用法示例。


在下文中一共展示了StampedLock.writeLock方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: testInterruptibleOperationsThrowInterruptedExceptionWriteLockedInterrupted

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * interruptible operations throw InterruptedException when write locked and interrupted
 */
public void testInterruptibleOperationsThrowInterruptedExceptionWriteLockedInterrupted() {
    final StampedLock lock = new StampedLock();
    long s = lock.writeLock();

    Action[] interruptibleLockBlockingActions = {
        () -> lock.writeLockInterruptibly(),
        () -> lock.tryWriteLock(Long.MAX_VALUE, DAYS),
        () -> lock.readLockInterruptibly(),
        () -> lock.tryReadLock(Long.MAX_VALUE, DAYS),
        () -> lock.asWriteLock().lockInterruptibly(),
        () -> lock.asWriteLock().tryLock(Long.MAX_VALUE, DAYS),
        () -> lock.asReadLock().lockInterruptibly(),
        () -> lock.asReadLock().tryLock(Long.MAX_VALUE, DAYS),
    };
    shuffle(interruptibleLockBlockingActions);

    assertThrowInterruptedExceptionWhenInterrupted(interruptibleLockBlockingActions);
}
開發者ID:AdoptOpenJDK，項目名稱:openjdk-jdk10，代碼行數:22，代碼來源:StampedLockTest.java

示例2: testReadAfterWriteLock

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * readLock() succeed only after a writing thread unlocks
 */
public void testReadAfterWriteLock() {
    final StampedLock lock = new StampedLock();
    final CountDownLatch threadsStarted = new CountDownLatch(2);
    final long s = lock.writeLock();
    final Runnable acquireReleaseReadLock = new CheckedRunnable() {
        public void realRun() {
            threadsStarted.countDown();
            long rs = lock.readLock();
            assertTrue(lock.isReadLocked());
            assertFalse(lock.isWriteLocked());
            lock.unlockRead(rs);
        }};
    Thread t1 = newStartedThread(acquireReleaseReadLock);
    Thread t2 = newStartedThread(acquireReleaseReadLock);

    await(threadsStarted);
    assertThreadBlocks(t1, Thread.State.WAITING);
    assertThreadBlocks(t2, Thread.State.WAITING);
    assertTrue(lock.isWriteLocked());
    assertFalse(lock.isReadLocked());
    releaseWriteLock(lock, s);
    awaitTermination(t1);
    awaitTermination(t2);
    assertUnlocked(lock);
}
開發者ID:AdoptOpenJDK，項目名稱:openjdk-jdk10，代碼行數:29，代碼來源:StampedLockTest.java

示例3: testLock

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * write-locking and read-locking an unlocked lock succeed
 */
public void testLock() {
    StampedLock lock = new StampedLock();
    assertFalse(lock.isWriteLocked());
    assertFalse(lock.isReadLocked());
    assertEquals(lock.getReadLockCount(), 0);
    long s = lock.writeLock();
    assertTrue(lock.isWriteLocked());
    assertFalse(lock.isReadLocked());
    assertEquals(lock.getReadLockCount(), 0);
    lock.unlockWrite(s);
    assertFalse(lock.isWriteLocked());
    assertFalse(lock.isReadLocked());
    assertEquals(lock.getReadLockCount(), 0);
    long rs = lock.readLock();
    assertFalse(lock.isWriteLocked());
    assertTrue(lock.isReadLocked());
    assertEquals(lock.getReadLockCount(), 1);
    lock.unlockRead(rs);
    assertFalse(lock.isWriteLocked());
    assertFalse(lock.isReadLocked());
    assertEquals(lock.getReadLockCount(), 0);
}
開發者ID:campolake，項目名稱:openjdk9，代碼行數:26，代碼來源:StampedLockTest.java

示例4: testUnlock

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * unlock releases either a read or write lock
 */
public void testUnlock() {
    StampedLock lock = new StampedLock();
    assertFalse(lock.isWriteLocked());
    assertFalse(lock.isReadLocked());
    assertEquals(lock.getReadLockCount(), 0);
    long s = lock.writeLock();
    assertTrue(lock.isWriteLocked());
    assertFalse(lock.isReadLocked());
    assertEquals(lock.getReadLockCount(), 0);
    lock.unlock(s);
    assertFalse(lock.isWriteLocked());
    assertFalse(lock.isReadLocked());
    assertEquals(lock.getReadLockCount(), 0);
    long rs = lock.readLock();
    assertFalse(lock.isWriteLocked());
    assertTrue(lock.isReadLocked());
    assertEquals(lock.getReadLockCount(), 1);
    lock.unlock(rs);
    assertFalse(lock.isWriteLocked());
    assertFalse(lock.isReadLocked());
    assertEquals(lock.getReadLockCount(), 0);
}
開發者ID:campolake，項目名稱:openjdk9，代碼行數:26，代碼來源:StampedLockTest.java

示例5: testValidate

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * A stamp obtained from a successful lock operation validates
 */
public void testValidate() throws InterruptedException {
    StampedLock lock = new StampedLock();
    long s = lock.writeLock();
    assertTrue(lock.validate(s));
    lock.unlockWrite(s);
    s = lock.readLock();
    assertTrue(lock.validate(s));
    lock.unlockRead(s);
    assertTrue((s = lock.tryWriteLock()) != 0L);
    assertTrue(lock.validate(s));
    lock.unlockWrite(s);
    assertTrue((s = lock.tryReadLock()) != 0L);
    assertTrue(lock.validate(s));
    lock.unlockRead(s);
    assertTrue((s = lock.tryWriteLock(100L, MILLISECONDS)) != 0L);
    assertTrue(lock.validate(s));
    lock.unlockWrite(s);
    assertTrue((s = lock.tryReadLock(100L, MILLISECONDS)) != 0L);
    assertTrue(lock.validate(s));
    lock.unlockRead(s);
    assertTrue((s = lock.tryOptimisticRead()) != 0L);
}
開發者ID:campolake，項目名稱:openjdk9，代碼行數:26，代碼來源:StampedLockTest.java

示例6: testWriteLockInterruptibly_Interruptible

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * writeLockInterruptibly is interruptible
 */
public void testWriteLockInterruptibly_Interruptible()
        throws InterruptedException {
    final CountDownLatch running = new CountDownLatch(1);
    final StampedLock lock = new StampedLock();
    long s = lock.writeLock();
    Thread t = newStartedThread(new CheckedInterruptedRunnable() {
        public void realRun() throws InterruptedException {
            running.countDown();
            lock.writeLockInterruptibly();
        }});

    running.await();
    waitForThreadToEnterWaitState(t, 100);
    t.interrupt();
    awaitTermination(t);
    releaseWriteLock(lock, s);
}
開發者ID:campolake，項目名稱:openjdk9，代碼行數:21，代碼來源:StampedLockTest.java

示例7: testWriteTryLock_Interruptible

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * timed tryWriteLock is interruptible
 */
public void testWriteTryLock_Interruptible() throws InterruptedException {
    final CountDownLatch running = new CountDownLatch(1);
    final StampedLock lock = new StampedLock();
    long s = lock.writeLock();
    Thread t = newStartedThread(new CheckedInterruptedRunnable() {
        public void realRun() throws InterruptedException {
            running.countDown();
            lock.tryWriteLock(2 * LONG_DELAY_MS, MILLISECONDS);
        }});

    running.await();
    waitForThreadToEnterWaitState(t, 100);
    t.interrupt();
    awaitTermination(t);
    releaseWriteLock(lock, s);
}
開發者ID:campolake，項目名稱:openjdk9，代碼行數:20，代碼來源:StampedLockTest.java

示例8: testReadLockInterruptibly_Interruptible

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * readLockInterruptibly is interruptible
 */
public void testReadLockInterruptibly_Interruptible()
        throws InterruptedException {
    final CountDownLatch running = new CountDownLatch(1);
    final StampedLock lock = new StampedLock();
    long s = lock.writeLock();
    Thread t = newStartedThread(new CheckedInterruptedRunnable() {
        public void realRun() throws InterruptedException {
            running.countDown();
            lock.readLockInterruptibly();
        }});

    running.await();
    waitForThreadToEnterWaitState(t, 100);
    t.interrupt();
    awaitTermination(t);
    releaseWriteLock(lock, s);
}
開發者ID:campolake，項目名稱:openjdk9，代碼行數:21，代碼來源:StampedLockTest.java

示例9: testReadTryLock_Interruptible

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * timed tryReadLock is interruptible
 */
public void testReadTryLock_Interruptible() throws InterruptedException {
    final CountDownLatch running = new CountDownLatch(1);
    final StampedLock lock = new StampedLock();
    long s = lock.writeLock();
    Thread t = newStartedThread(new CheckedInterruptedRunnable() {
        public void realRun() throws InterruptedException {
            running.countDown();
            lock.tryReadLock(2 * LONG_DELAY_MS, MILLISECONDS);
        }});

    running.await();
    waitForThreadToEnterWaitState(t, 100);
    t.interrupt();
    awaitTermination(t);
    releaseWriteLock(lock, s);
}
開發者ID:campolake，項目名稱:openjdk9，代碼行數:20，代碼來源:StampedLockTest.java

示例10: testWriteTryLock_Timeout

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * timed tryWriteLock times out if locked
 */
public void testWriteTryLock_Timeout() {
    final StampedLock lock = new StampedLock();
    long s = lock.writeLock();
    Thread t = newStartedThread(new CheckedRunnable() {
        public void realRun() throws InterruptedException {
            long startTime = System.nanoTime();
            long timeoutMillis = 10;
            long ws = lock.tryWriteLock(timeoutMillis, MILLISECONDS);
            assertEquals(ws, 0L);
            assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
        }});

    awaitTermination(t);
    releaseWriteLock(lock, s);
}
開發者ID:campolake，項目名稱:openjdk9，代碼行數:19，代碼來源:StampedLockTest.java

示例11: testReadTryLock_Timeout

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * timed tryReadLock times out if write-locked
 */
public void testReadTryLock_Timeout() {
    final StampedLock lock = new StampedLock();
    long s = lock.writeLock();
    Thread t = newStartedThread(new CheckedRunnable() {
        public void realRun() throws InterruptedException {
            long startTime = System.nanoTime();
            long timeoutMillis = 10;
            long rs = lock.tryReadLock(timeoutMillis, MILLISECONDS);
            assertEquals(rs, 0L);
            assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
        }});

    awaitTermination(t);
    assertTrue(lock.isWriteLocked());
    lock.unlockWrite(s);
}
開發者ID:campolake，項目名稱:openjdk9，代碼行數:20，代碼來源:StampedLockTest.java

示例12: testTryWriteLockWhenLocked

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * tryWriteLock fails if locked
 */
public void testTryWriteLockWhenLocked() {
    final StampedLock lock = new StampedLock();
    long s = lock.writeLock();
    Thread t = newStartedThread(new CheckedRunnable() {
        public void realRun() {
            assertEquals(0L, lock.tryWriteLock());
        }});

    assertEquals(0L, lock.tryWriteLock());
    awaitTermination(t);
    releaseWriteLock(lock, s);
}
開發者ID:AdoptOpenJDK，項目名稱:openjdk-jdk10，代碼行數:16，代碼來源:StampedLockTest.java

示例13: testTryReadLockWhenLocked

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * tryReadLock fails if write-locked
 */
public void testTryReadLockWhenLocked() {
    final StampedLock lock = new StampedLock();
    long s = lock.writeLock();
    Thread t = newStartedThread(new CheckedRunnable() {
        public void realRun() {
            assertEquals(0L, lock.tryReadLock());
        }});

    assertEquals(0L, lock.tryReadLock());
    awaitTermination(t);
    releaseWriteLock(lock, s);
}
開發者ID:AdoptOpenJDK，項目名稱:openjdk-jdk10，代碼行數:16，代碼來源:StampedLockTest.java

示例14: testSerialization

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * A serialized lock deserializes as unlocked
 */
public void testSerialization() {
    StampedLock lock = new StampedLock();
    lock.writeLock();
    StampedLock clone = serialClone(lock);
    assertTrue(lock.isWriteLocked());
    assertFalse(clone.isWriteLocked());
    long s = clone.writeLock();
    assertTrue(clone.isWriteLocked());
    clone.unlockWrite(s);
    assertFalse(clone.isWriteLocked());
}
開發者ID:AdoptOpenJDK，項目名稱:openjdk-jdk10，代碼行數:15，代碼來源:StampedLockTest.java

示例15: testToString

import java.util.concurrent.locks.StampedLock; //導入方法依賴的package包/類
/**
 * toString indicates current lock state
 */
public void testToString() {
    StampedLock lock = new StampedLock();
    assertTrue(lock.toString().contains("Unlocked"));
    long s = lock.writeLock();
    assertTrue(lock.toString().contains("Write-locked"));
    lock.unlockWrite(s);
    s = lock.readLock();
    assertTrue(lock.toString().contains("Read-locks"));
}
開發者ID:AdoptOpenJDK，項目名稱:openjdk-jdk10，代碼行數:13，代碼來源:StampedLockTest.java


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