what-the-bank/sources/com/google/common/eventbus/Dispatcher.java

146 lines
5.1 KiB
Java
Raw Normal View History

2024-07-27 18:17:47 +07:00
package com.google.common.eventbus;
import com.google.common.base.Preconditions;
import com.google.common.collect.Queues;
import java.util.Iterator;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
/* JADX INFO: Access modifiers changed from: package-private */
/* loaded from: classes2.dex */
public abstract class Dispatcher {
/* JADX INFO: Access modifiers changed from: package-private */
public abstract void dispatch(Object obj, Iterator<Subscriber> it);
Dispatcher() {
}
/* JADX INFO: Access modifiers changed from: package-private */
public static Dispatcher perThreadDispatchQueue() {
return new PerThreadQueuedDispatcher();
}
/* JADX INFO: Access modifiers changed from: package-private */
public static Dispatcher legacyAsync() {
return new LegacyAsyncDispatcher();
}
static Dispatcher immediate() {
return ImmediateDispatcher.INSTANCE;
}
/* JADX INFO: Access modifiers changed from: package-private */
/* loaded from: classes2.dex */
public static final class PerThreadQueuedDispatcher extends Dispatcher {
private final ThreadLocal<Boolean> dispatching;
private final ThreadLocal<Queue<Event>> queue;
private PerThreadQueuedDispatcher() {
this.queue = new ThreadLocal<Queue<Event>>(this) { // from class: com.google.common.eventbus.Dispatcher.PerThreadQueuedDispatcher.1
/* JADX INFO: Access modifiers changed from: protected */
@Override // java.lang.ThreadLocal
public Queue<Event> initialValue() {
return Queues.newArrayDeque();
}
};
this.dispatching = new ThreadLocal<Boolean>(this) { // from class: com.google.common.eventbus.Dispatcher.PerThreadQueuedDispatcher.2
/* JADX INFO: Access modifiers changed from: protected */
/* JADX WARN: Can't rename method to resolve collision */
@Override // java.lang.ThreadLocal
public Boolean initialValue() {
return Boolean.FALSE;
}
};
}
@Override // com.google.common.eventbus.Dispatcher
final void dispatch(Object obj, Iterator<Subscriber> it) {
Preconditions.checkNotNull(obj);
Preconditions.checkNotNull(it);
Queue<Event> queue = this.queue.get();
queue.offer(new Event(obj, it));
if (this.dispatching.get().booleanValue()) {
return;
}
this.dispatching.set(Boolean.TRUE);
while (true) {
try {
Event poll = queue.poll();
if (poll == null) {
return;
}
while (poll.subscribers.hasNext()) {
((Subscriber) poll.subscribers.next()).dispatchEvent(poll.event);
}
} finally {
this.dispatching.remove();
this.queue.remove();
}
}
}
/* loaded from: classes2.dex */
static final class Event {
private final Object event;
private final Iterator<Subscriber> subscribers;
private Event(Object obj, Iterator<Subscriber> it) {
this.event = obj;
this.subscribers = it;
}
}
}
/* loaded from: classes2.dex */
static final class LegacyAsyncDispatcher extends Dispatcher {
private final ConcurrentLinkedQueue<EventWithSubscriber> queue;
private LegacyAsyncDispatcher() {
this.queue = Queues.newConcurrentLinkedQueue();
}
@Override // com.google.common.eventbus.Dispatcher
final void dispatch(Object obj, Iterator<Subscriber> it) {
Preconditions.checkNotNull(obj);
while (it.hasNext()) {
this.queue.add(new EventWithSubscriber(obj, it.next()));
}
while (true) {
EventWithSubscriber poll = this.queue.poll();
if (poll == null) {
return;
} else {
poll.subscriber.dispatchEvent(poll.event);
}
}
}
/* loaded from: classes2.dex */
static final class EventWithSubscriber {
private final Object event;
private final Subscriber subscriber;
private EventWithSubscriber(Object obj, Subscriber subscriber) {
this.event = obj;
this.subscriber = subscriber;
}
}
}
/* loaded from: classes2.dex */
static final class ImmediateDispatcher extends Dispatcher {
private static final ImmediateDispatcher INSTANCE = new ImmediateDispatcher();
private ImmediateDispatcher() {
}
@Override // com.google.common.eventbus.Dispatcher
final void dispatch(Object obj, Iterator<Subscriber> it) {
Preconditions.checkNotNull(obj);
while (it.hasNext()) {
it.next().dispatchEvent(obj);
}
}
}
}