Package io.reactivex.rxjava3.internal.operators.maybe

Class MaybeMergeArray.ClqSimpleQueue<T>

java.lang.Object

java.util.AbstractCollection<T>

java.util.AbstractQueue<T>

java.util.concurrent.ConcurrentLinkedQueue<T>

io.reactivex.rxjava3.internal.operators.maybe.MaybeMergeArray.ClqSimpleQueue<T>

All Implemented Interfaces:

MaybeMergeArray.SimpleQueueWithConsumerIndex<T>, SimpleQueue<T>, Serializable, Iterable<T>, Collection<T>, Queue<T>

Enclosing class:

MaybeMergeArray<T>

static final class MaybeMergeArray.ClqSimpleQueue<T>
extends ConcurrentLinkedQueue<T>
implements MaybeMergeArray.SimpleQueueWithConsumerIndex<T>

Field Summary

Fields

Modifier and Type	Field	Description
(package private) int	consumerIndex
(package private) final AtomicInteger	producerIndex
private static final long	serialVersionUID

Constructor Summary

Constructors

Constructor	Description
ClqSimpleQueue()

Method Summary

Modifier and Type	Method	Description
int	consumerIndex()
void	drop()
boolean	offer(T e)	Atomically enqueue a single value.
boolean	offer(T v1, T v2)	Atomically enqueue two values.
T	poll()	Tries to dequeue a value (non-null) or returns null if the queue is empty.
int	producerIndex()

Methods inherited from class java.util.concurrent.ConcurrentLinkedQueue

add, addAll, clear, contains, forEach, isEmpty, iterator, peek, remove, removeAll, removeIf, retainAll, size, spliterator, toArray, toArray, toString

Methods inherited from class java.util.AbstractQueue

element, remove

Methods inherited from class java.util.AbstractCollection

containsAll

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

containsAll, equals, hashCode, parallelStream, stream, toArray

Methods inherited from interface io.reactivex.rxjava3.internal.operators.maybe.MaybeMergeArray.SimpleQueueWithConsumerIndex

peek

Methods inherited from interface java.util.Queue

element, remove

Methods inherited from interface io.reactivex.rxjava3.operators.SimpleQueue

clear, isEmpty

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

consumerIndex

int consumerIndex

producerIndex

final AtomicInteger producerIndex

Constructor Details

ClqSimpleQueue

ClqSimpleQueue()

Method Details

offer

public boolean offer(T v1,
 T v2)

Description copied from interface: SimpleQueue

Atomically enqueue two values.

Specified by:

offer in interface SimpleQueue<T>

Parameters:

v1 - the first value to enqueue, not null

v2 - the second value to enqueue, not null

Returns:

true if successful, false if the value was not enqueued likely due to reaching the queue capacity)

offer

public boolean offer(T e)

Description copied from interface: SimpleQueue

Atomically enqueue a single value.

Specified by:

offer in interface Queue<T>

Specified by:

offer in interface SimpleQueue<T>

Overrides:

offer in class ConcurrentLinkedQueue<T>

Parameters:

e - the value to enqueue, not null

Returns:

true if successful, false if the value was not enqueued likely due to reaching the queue capacity)

poll

@Nullable
public T poll()

Description copied from interface: SimpleQueue

Tries to dequeue a value (non-null) or returns null if the queue is empty.

If the producer uses SimpleQueue.offer(Object, Object) and when polling in pairs, if the first poll() returns a non-null item, the second poll() is guaranteed to return a non-null item as well.

Specified by:

poll in interface MaybeMergeArray.SimpleQueueWithConsumerIndex<T>

Specified by:

poll in interface Queue<T>

Specified by:

poll in interface SimpleQueue<T>

Overrides:

poll in class ConcurrentLinkedQueue<T>

Returns:

the item or null to indicate an empty queue

consumerIndex

public int consumerIndex()

Specified by:

consumerIndex in interface MaybeMergeArray.SimpleQueueWithConsumerIndex<T>

producerIndex

public int producerIndex()

Specified by:

producerIndex in interface MaybeMergeArray.SimpleQueueWithConsumerIndex<T>

drop

public void drop()

Specified by:

drop in interface MaybeMergeArray.SimpleQueueWithConsumerIndex<T>