| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.ignite.jvmtest; |
| |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ConcurrentLinkedQueue; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.concurrent.locks.ReadWriteLock; |
| import java.util.concurrent.locks.ReentrantReadWriteLock; |
| import org.apache.ignite.internal.IgniteInternalFuture; |
| import org.apache.ignite.internal.util.typedef.X; |
| import org.apache.ignite.testframework.GridTestUtils; |
| import org.jetbrains.annotations.Nullable; |
| import org.junit.Test; |
| |
| /** |
| * Test to check strange assertion in eviction manager. |
| */ |
| public class QueueSizeCounterMultiThreadedTest { |
| /** |
| * @throws Exception If failed. |
| */ |
| @Test |
| public void testQueueSizeCounter() throws Exception { |
| final ConcurrentLinkedQueue<Integer> q = new ConcurrentLinkedQueue<>(); |
| |
| final AtomicInteger sizeCnt = new AtomicInteger(); |
| |
| final AtomicBoolean done = new AtomicBoolean(); |
| |
| final AtomicBoolean guard = new AtomicBoolean(); |
| |
| final ReadWriteLock lock = new ReentrantReadWriteLock(); |
| |
| IgniteInternalFuture fut1 = GridTestUtils.runMultiThreadedAsync( |
| new Callable<Object>() { |
| @Nullable @Override public Object call() throws Exception { |
| int cleanUps = 0; |
| |
| while (!done.get()) { |
| lock.readLock().lock(); |
| |
| try { |
| q.add(1); |
| |
| sizeCnt.incrementAndGet(); |
| } |
| finally { |
| lock.readLock().unlock(); |
| } |
| |
| if (sizeCnt.get() > 100 && guard.compareAndSet(false, true)) { |
| lock.writeLock().lock(); |
| |
| try { |
| for (Integer i = q.poll(); i != null; i = q.poll()) |
| sizeCnt.decrementAndGet(); |
| |
| cleanUps++; |
| |
| assert sizeCnt.get() == 0 : "Invalid count [cnt=" + sizeCnt.get() + |
| ", size=" + q.size() + ", entries=" + q + ']'; |
| } |
| finally { |
| lock.writeLock().unlock(); |
| |
| guard.set(false); |
| } |
| } |
| } |
| |
| X.println("Cleanups count (per thread): " + cleanUps); |
| |
| return null; |
| } |
| }, |
| 100, |
| "test-thread" |
| ); |
| |
| Thread.sleep(3 * 60 * 1000); |
| |
| done.set(true); |
| |
| fut1.get(); |
| } |
| } |