Merge branch '2.2.x'
# Conflicts: # src/main/java/org/redisson/RedissonPatternTopic.java # src/main/java/org/redisson/RedissonTopic.java # src/main/java/org/redisson/connection/MasterSlaveEntry.java # src/main/java/org/redisson/reactive/RedissonPatternTopicReactive.java # src/main/java/org/redisson/reactive/RedissonTopicReactive.javapull/574/merge
Nikita
9 years ago
commit
7651ceedb1
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/**
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* Copyright 2016 Nikita Koksharov
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.redisson.pubsub;
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import java.util.LinkedList;
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import java.util.Queue;
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import java.util.concurrent.CountDownLatch;
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/**
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*
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* @author Nikita Koksharov
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*
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*/
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public class AsyncSemaphore {
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private int counter;
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private final Queue<Runnable> listeners = new LinkedList<Runnable>();
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public AsyncSemaphore(int permits) {
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counter = permits;
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}
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public void acquireUninterruptibly() {
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final CountDownLatch latch = new CountDownLatch(1);
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acquire(new Runnable() {
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@Override
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public void run() {
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latch.countDown();
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}
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});
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try {
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latch.await();
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} catch (InterruptedException e) {
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Thread.currentThread().interrupt();
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}
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}
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public void acquire(Runnable listener) {
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boolean run = false;
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synchronized (this) {
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if (counter == 0) {
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listeners.add(listener);
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return;
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}
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if (counter > 0) {
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counter--;
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run = true;
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}
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}
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if (run) {
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listener.run();
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}
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}
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public boolean remove(Runnable listener) {
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synchronized (this) {
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return listeners.remove(listener);
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}
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}
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public void release() {
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Runnable runnable = null;
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synchronized (this) {
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counter++;
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runnable = listeners.poll();
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}
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if (runnable != null) {
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acquire(runnable);
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}
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}
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}
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@ -0,0 +1,47 @@
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/**
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* Copyright 2016 Nikita Koksharov
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.redisson.pubsub;
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import io.netty.util.concurrent.Future;
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import io.netty.util.concurrent.FutureListener;
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import io.netty.util.concurrent.Promise;
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/**
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*
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* @author Nikita Koksharov
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*
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* @param <T>
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*/
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public class TransferListener<T> implements FutureListener<T> {
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private Promise<T> promise;
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public TransferListener(Promise<T> promise) {
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super();
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this.promise = promise;
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}
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@Override
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public void operationComplete(Future<T> future) throws Exception {
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if (!future.isSuccess()) {
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promise.tryFailure(future.cause());
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return;
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}
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promise.trySuccess(future.getNow());
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}
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}
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