Examples of java.util.concurrent.locks.ReentrantLock

java.util.concurrent.locks.ReentrantLock
public void m() { lock.lock(); // block until condition holds try { // ... method body } finally { lock.unlock() } } }}
In addition to implementing the {@link Lock} interface, thisclass defines a number of {@code public} and {@code protected}methods for inspecting the state of the lock. Some of these methods are only useful for instrumentation and monitoring.
Serialization of this class behaves in the same way as built-in locks: a deserialized lock is in the unlocked state, regardless of its state when serialized.
This lock supports a maximum of 2147483647 recursive locks by the same thread. Attempts to exceed this limit result in {@link Error} throws from locking methods. @since 1.5 @author Doug Lea

     * @param item element in list
     */
    Entry(T item) {
      this.item = item;
      this.key = item.hashCode();
      lock = new ReentrantLock();
    }

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     * Constructor for sentinel entry
     * @param key should be min or max int value
     */
    Entry(int key) {
      this.key = key;
      lock = new ReentrantLock();
    }

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     * @param item element in list
     */
    Node(T item) {
      this.item = item;
      this.key = item.hashCode();
      this.lock = new ReentrantLock();
    }

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     * @param key should be min or max int value
     */
    Node(int key) {
      this.item = null;
      this.key = key;
      this.lock = new ReentrantLock();
    }

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        locks = new Lock[2][LOCKS];
        table = (T[][]) new Object[2][capacity];
        size = capacity;
        for(int i = 0; i < 2; i++) {
            for(int j = 0; j < LOCKS; j++) {
                locks[i][j] = new ReentrantLock();
            }
        }
    }

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public class CoarseHashSet<T> extends BaseHashSet<T> {
    final Lock lock;


    CoarseHashSet(int capacity) {
        super(capacity);
        lock = new ReentrantLock();
    }

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     */
    public RWStripedHashSet(int capacity) {
        super(capacity);
        locks = new Lock[capacity];
        for(int j = 0; j < locks.length; j++) {
            locks[j] = new ReentrantLock();
        }
        ReadWriteLock rwLock = new ReentrantReadWriteLock();
        readLock = rwLock.readLock();
        writeLock = rwLock.writeLock();
    }

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    protected static final int LIMIT = 32;
    // used for rehashing
    private Random random;


    public CoarseCuckooHashSet(int capacity) {
        lock = new ReentrantLock();
        table = (T[][]) new Object[2][capacity];
        size = capacity;
        random = new Random();
    }

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    public StripedCuckooHashSet(int capacity) {
        super(capacity);
        lock = new ReentrantLock[2][capacity];
        for(int i = 0; i < 2; i++) {
            for(int j = 0; j < capacity; j++) {
                lock[i][j] = new ReentrantLock();
            }
        }
    }

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    public RefinableCuckooHashSet(int capacity) {
        super(capacity);
        locks = new ReentrantLock[2][capacity];
        for(int i = 0; i < 2; i++) {
            for(int j = 0; j < capacity; j++) {
                locks[i][j] = new ReentrantLock();
            }
        }
        owner = new AtomicMarkableReference<Thread>(null, false);
    }

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