/*
* 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.geode.distributed.internal.locks;
import org.apache.geode.cache.*;
import org.apache.geode.test.junit.categories.DLockTest;
import org.apache.geode.test.junit.categories.IntegrationTest;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Lock;
import static org.apache.geode.distributed.ConfigurationProperties.LOCATORS;
import static org.apache.geode.distributed.ConfigurationProperties.MCAST_PORT;
@Category({IntegrationTest.class, DLockTest.class})
public class DLockReentrantLockJUnitTest {
final long id = 1213L;
private Cache cache;
private Region<Long, String> region;
@Before
public void setup() {
cache = new CacheFactory().set(MCAST_PORT, "0").set(LOCATORS, "").create();
final RegionFactory<Long, String> regionFactory = cache.createRegionFactory("REPLICATE");
regionFactory.setScope(Scope.GLOBAL);
region = regionFactory.create("ReentrantLockRegion");
region.put(id, new String("TestValue1"));
}
@After
public void tearDown() {
cache.close();
}
/**
* Tests GEM-96/GEODE-678
*/
@Test
public void testReentrantLock() throws Exception {
Assert.assertEquals(Scope.GLOBAL, region.getAttributes().getScope());
final Lock lock1 = region.getDistributedLock(id);
final Lock lock2 = region.getDistributedLock(id);
for (int i = 0; i < 50; i++) {
lock1.lock();
boolean reenteredLock = false;
try {
reenteredLock = lock2.tryLock(1, TimeUnit.NANOSECONDS);
if (!reenteredLock) {
System.out.println("ERROR: could not reenter lock");
}
Assert.assertTrue("Failed getting lock at 2:" + i, reenteredLock);
} finally {
if (reenteredLock) {
lock2.unlock();
}
lock1.unlock();
}
}
}
}