/**
* Copyright (c) 2016-present, RxJava Contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is
* distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
* the License for the specific language governing permissions and limitations under the License.
*/
package io.reactivex.internal.operators.flowable;
import java.util.concurrent.*;
import java.util.concurrent.atomic.AtomicReference;
import org.reactivestreams.*;
import io.reactivex.*;
import io.reactivex.Scheduler.Worker;
import io.reactivex.disposables.Disposable;
import io.reactivex.internal.disposables.DisposableHelper;
import io.reactivex.internal.subscribers.FullArbiterSubscriber;
import io.reactivex.internal.subscriptions.*;
import io.reactivex.plugins.RxJavaPlugins;
import io.reactivex.subscribers.SerializedSubscriber;
public final class FlowableTimeoutTimed<T> extends AbstractFlowableWithUpstream<T, T> {
final long timeout;
final TimeUnit unit;
final Scheduler scheduler;
final Publisher<? extends T> other;
static final Disposable NEW_TIMER = new EmptyDispose();
public FlowableTimeoutTimed(Flowable<T> source,
long timeout, TimeUnit unit, Scheduler scheduler, Publisher<? extends T> other) {
super(source);
this.timeout = timeout;
this.unit = unit;
this.scheduler = scheduler;
this.other = other;
}
@Override
protected void subscribeActual(Subscriber<? super T> s) {
if (other == null) {
source.subscribe(new TimeoutTimedSubscriber<T>(
new SerializedSubscriber<T>(s), // because errors can race
timeout, unit, scheduler.createWorker()));
} else {
source.subscribe(new TimeoutTimedOtherSubscriber<T>(
s, // the FullArbiter serializes
timeout, unit, scheduler.createWorker(), other));
}
}
static final class TimeoutTimedOtherSubscriber<T> implements FlowableSubscriber<T>, Disposable {
final Subscriber<? super T> actual;
final long timeout;
final TimeUnit unit;
final Scheduler.Worker worker;
final Publisher<? extends T> other;
Subscription s;
final FullArbiter<T> arbiter;
final AtomicReference<Disposable> timer = new AtomicReference<Disposable>();
volatile long index;
volatile boolean done;
TimeoutTimedOtherSubscriber(Subscriber<? super T> actual, long timeout, TimeUnit unit, Worker worker,
Publisher<? extends T> other) {
this.actual = actual;
this.timeout = timeout;
this.unit = unit;
this.worker = worker;
this.other = other;
this.arbiter = new FullArbiter<T>(actual, this, 8);
}
@Override
public void onSubscribe(Subscription s) {
if (SubscriptionHelper.validate(this.s, s)) {
this.s = s;
if (arbiter.setSubscription(s)) {
actual.onSubscribe(arbiter);
scheduleTimeout(0L);
}
}
}
@Override
public void onNext(T t) {
if (done) {
return;
}
long idx = index + 1;
index = idx;
if (arbiter.onNext(t, s)) {
scheduleTimeout(idx);
}
}
void scheduleTimeout(final long idx) {
Disposable d = timer.get();
if (d != null) {
d.dispose();
}
if (timer.compareAndSet(d, NEW_TIMER)) {
d = worker.schedule(new TimeoutTask(idx), timeout, unit);
DisposableHelper.replace(timer, d);
}
}
void subscribeNext() {
other.subscribe(new FullArbiterSubscriber<T>(arbiter));
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
arbiter.onError(t, s);
worker.dispose();
}
@Override
public void onComplete() {
if (done) {
return;
}
done = true;
arbiter.onComplete(s);
worker.dispose();
}
@Override
public void dispose() {
s.cancel();
worker.dispose();
}
@Override
public boolean isDisposed() {
return worker.isDisposed();
}
final class TimeoutTask implements Runnable {
private final long idx;
TimeoutTask(long idx) {
this.idx = idx;
}
@Override
public void run() {
if (idx == index) {
done = true;
s.cancel();
DisposableHelper.dispose(timer);
subscribeNext();
worker.dispose();
}
}
}
}
static final class TimeoutTimedSubscriber<T> implements FlowableSubscriber<T>, Disposable, Subscription {
final Subscriber<? super T> actual;
final long timeout;
final TimeUnit unit;
final Scheduler.Worker worker;
Subscription s;
final AtomicReference<Disposable> timer = new AtomicReference<Disposable>();
volatile long index;
volatile boolean done;
TimeoutTimedSubscriber(Subscriber<? super T> actual, long timeout, TimeUnit unit, Worker worker) {
this.actual = actual;
this.timeout = timeout;
this.unit = unit;
this.worker = worker;
}
@Override
public void onSubscribe(Subscription s) {
if (SubscriptionHelper.validate(this.s, s)) {
this.s = s;
actual.onSubscribe(this);
scheduleTimeout(0L);
}
}
@Override
public void onNext(T t) {
if (done) {
return;
}
long idx = index + 1;
index = idx;
actual.onNext(t);
scheduleTimeout(idx);
}
void scheduleTimeout(final long idx) {
Disposable d = timer.get();
if (d != null) {
d.dispose();
}
if (timer.compareAndSet(d, NEW_TIMER)) {
d = worker.schedule(new TimeoutTask(idx), timeout, unit);
DisposableHelper.replace(timer, d);
}
}
@Override
public void onError(Throwable t) {
if (done) {
RxJavaPlugins.onError(t);
return;
}
done = true;
actual.onError(t);
worker.dispose();
}
@Override
public void onComplete() {
if (done) {
return;
}
done = true;
actual.onComplete();
worker.dispose();
}
@Override
public void dispose() {
s.cancel();
worker.dispose();
}
@Override
public boolean isDisposed() {
return worker.isDisposed();
}
@Override
public void request(long n) {
s.request(n);
}
@Override
public void cancel() {
dispose();
}
final class TimeoutTask implements Runnable {
private final long idx;
TimeoutTask(long idx) {
this.idx = idx;
}
@Override
public void run() {
if (idx == index) {
done = true;
dispose();
actual.onError(new TimeoutException());
}
}
}
}
static final class EmptyDispose implements Disposable {
@Override
public void dispose() { }
@Override
public boolean isDisposed() {
return true;
}
}
}