Examples of java.util.concurrent.atomic.AtomicReferenceArray.compareAndSet()

Class java.util.concurrent.atomic.AtomicReferenceArray

Examples of java.util.concurrent.atomic.AtomicReferenceArray.compareAndSet()

java.util.concurrent.atomic.AtomicReferenceArray.compareAndSet()
Atomically sets the element at position {@code i} to the givenupdated value if the current value {@code ==} the expected value. @param i the index @param expect the expected value @param update the new value @return {@code true} if successful. False return indicates thatthe actual value was not equal to the expected value.

        int index = ConcurrentHashMap.indexFor(hash, length);
        Object o = currentArray.get(index);
        if (o == null)
        {
            Entry<K, V> newEntry = new Entry<K, V>(key, value, null);
            if (currentArray.compareAndSet(index, null, newEntry))
            {
                this.addToSize(1);
                return null;
            }
        }

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                    resizeContainer = (ResizeContainer) currentArray.get(currentArray.length() - 1);
                }
                else if (o != null)
                {
                    Entry<K, V> e = (Entry<K, V>) o;
                    if (currentArray.compareAndSet(i, o, null))
                    {
                        int removedEntries = 0;
                        while (e != null)
                        {
                            removedEntries++;

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            {
                if (oldValue == e.getValue() || (oldValue != null && oldValue.equals(e.getValue())))
                {
                    Entry<K, V> replacement = this.createReplacementChainForRemoval((Entry<K, V>) o, e);
                    Entry<K, V> newEntry = new Entry<K, V>(key, newValue, replacement);
                    return currentArray.compareAndSet(index, o, newEntry) || this.slowReplace(key, oldValue, newValue, hash, currentArray);
                }
                return false;
            }
            e = e.getNext();
        }

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