Topic: make reentrant
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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parent
3d57eb633e
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@ -24,14 +24,17 @@ public class Topic {
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if (subscribers == null) {
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subscribers = new LinkedList<>();
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}
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synchronized (subscribers) {
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subscribers.add(new WeakReference<>(sub));
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}
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}
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public void unsubscribe() {
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subscribers = null;
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}
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public void unsubscribe(Subscriber sub) {
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synchronized (subscribers) {
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for (Iterator<WeakReference<Subscriber>> i = subscribers.iterator(); i.hasNext(); ) {
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WeakReference<Subscriber> subscriber = i.next();
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if (subscriber.get() == null || subscriber.get() == sub) {
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@ -39,6 +42,7 @@ public class Topic {
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}
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}
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}
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}
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public void reset() {
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state = NON_INIT;
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@ -58,7 +62,11 @@ public class Topic {
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state = PUBLISHED;
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this.results = results;
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if (subscribers != null) {
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for (WeakReference<Subscriber> subscriber : subscribers) {
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List<WeakReference<Subscriber>> subscribersCopy = new LinkedList<>();
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synchronized (subscribers) {
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subscribersCopy.addAll(subscribers);
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}
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for (WeakReference<Subscriber> subscriber : subscribersCopy) {
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if (subscriber.get() != null)
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subscriber.get().onTopicPublished(this);
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}
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@ -86,12 +94,15 @@ public class Topic {
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topic.subscribe(this);
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}
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}
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default void unsubscribeTopics() {
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for (Topic event : getSubscription()) {
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event.unsubscribe(this);
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}
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}
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void onTopicPublished(Topic topic);
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Topic[] getSubscription();
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}
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}
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