Class FlowableCombineLatest.CombineLatestCoordinator<T,R>
java.lang.Object
java.lang.Number
java.util.concurrent.atomic.AtomicInteger
io.reactivex.rxjava3.internal.subscriptions.BasicIntQueueSubscription<R>
io.reactivex.rxjava3.internal.operators.flowable.FlowableCombineLatest.CombineLatestCoordinator<T,R>
- All Implemented Interfaces:
QueueFuseable<R>
,QueueSubscription<R>
,SimpleQueue<R>
,Serializable
,org.reactivestreams.Subscription
- Enclosing class:
FlowableCombineLatest<T,
R>
static final class FlowableCombineLatest.CombineLatestCoordinator<T,R>
extends BasicIntQueueSubscription<R>
-
Field Summary
FieldsModifier and TypeFieldDescription(package private) boolean
(package private) int
(package private) final boolean
(package private) boolean
(package private) final org.reactivestreams.Subscriber
<? super R> (package private) final AtomicThrowable
(package private) final Object[]
(package private) int
(package private) boolean
(package private) final SpscLinkedArrayQueue
<Object> (package private) final AtomicLong
private static final long
(package private) final FlowableCombineLatest.CombineLatestInnerSubscriber<T>[]
-
Constructor Summary
ConstructorsConstructorDescriptionCombineLatestCoordinator
(org.reactivestreams.Subscriber<? super R> actual, Function<? super Object[], ? extends R> combiner, int n, int bufferSize, boolean delayErrors) -
Method Summary
Modifier and TypeMethodDescriptionvoid
cancel()
(package private) void
(package private) boolean
checkTerminated
(boolean d, boolean empty, org.reactivestreams.Subscriber<?> a, SpscLinkedArrayQueue<?> q) void
clear()
Removes all enqueued items from this queue.(package private) void
drain()
(package private) void
(package private) void
(package private) void
innerComplete
(int index) (package private) void
innerError
(int index, Throwable e) (package private) void
innerValue
(int index, T value) boolean
isEmpty()
Returns true if the queue is empty.poll()
Tries to dequeue a value (non-null) or returns null if the queue is empty.void
request
(long n) int
requestFusion
(int requestedMode) Request a fusion mode from the upstream.(package private) void
Methods inherited from class io.reactivex.rxjava3.internal.subscriptions.BasicIntQueueSubscription
offer, offer
Methods inherited from class java.util.concurrent.atomic.AtomicInteger
accumulateAndGet, addAndGet, compareAndExchange, compareAndExchangeAcquire, compareAndExchangeRelease, compareAndSet, decrementAndGet, doubleValue, floatValue, get, getAcquire, getAndAccumulate, getAndAdd, getAndDecrement, getAndIncrement, getAndSet, getAndUpdate, getOpaque, getPlain, incrementAndGet, intValue, lazySet, longValue, set, setOpaque, setPlain, setRelease, toString, updateAndGet, weakCompareAndSet, weakCompareAndSetAcquire, weakCompareAndSetPlain, weakCompareAndSetRelease, weakCompareAndSetVolatile
Methods inherited from class java.lang.Number
byteValue, shortValue
-
Field Details
-
serialVersionUID
private static final long serialVersionUID- See Also:
-
downstream
-
combiner
-
subscribers
-
queue
-
latest
-
delayErrors
final boolean delayErrors -
outputFused
boolean outputFused -
nonEmptySources
int nonEmptySources -
completedSources
int completedSources -
cancelled
volatile boolean cancelled -
requested
-
done
volatile boolean done -
error
-
-
Constructor Details
-
CombineLatestCoordinator
-
-
Method Details
-
request
public void request(long n) -
cancel
public void cancel() -
subscribe
-
innerValue
-
innerComplete
void innerComplete(int index) -
innerError
-
drainOutput
void drainOutput() -
drainAsync
void drainAsync() -
drain
void drain() -
checkTerminated
boolean checkTerminated(boolean d, boolean empty, org.reactivestreams.Subscriber<?> a, SpscLinkedArrayQueue<?> q) -
cancelAll
void cancelAll() -
requestFusion
public int requestFusion(int requestedMode) Description copied from interface:QueueFuseable
Request a fusion mode from the upstream.This should be called before
onSubscribe
returns.Calling this method multiple times or after
onSubscribe
finished is not allowed and may result in undefined behavior.- Parameters:
requestedMode
- the requested fusion mode, allowed values areQueueFuseable.SYNC
,QueueFuseable.ASYNC
,QueueFuseable.ANY
combined withQueueFuseable.BOUNDARY
(e.g.,requestFusion(SYNC | BOUNDARY)
).- Returns:
- the established fusion mode:
QueueFuseable.NONE
,QueueFuseable.SYNC
,QueueFuseable.ASYNC
.
-
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.- Returns:
- the item or null to indicate an empty queue
- Throws:
Throwable
- if some pre-processing of the dequeued item (usually through fused functions) throws.
-
clear
public void clear()Description copied from interface:SimpleQueue
Removes all enqueued items from this queue. -
isEmpty
public boolean isEmpty()Description copied from interface:SimpleQueue
Returns true if the queue is empty.Note however that due to potential fused functions in
SimpleQueue.poll()
it is possible this method returns false but then poll() returns null because the fused function swallowed the available item(s).- Returns:
- true if the queue is empty
-