| // 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 com.cloud.utils.db; |
| |
| import org.apache.log4j.Logger; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.springframework.test.context.ContextConfiguration; |
| import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; |
| |
| import com.cloud.utils.Profiler; |
| |
| @RunWith(SpringJUnit4ClassRunner.class) |
| @ContextConfiguration(locations = "classpath:/testContext.xml") |
| public class GlobalLockTest { |
| public static final Logger s_logger = Logger.getLogger(GlobalLockTest.class); |
| private final static GlobalLock WorkLock = GlobalLock.getInternLock("SecurityGroupWork"); |
| |
| public static class Worker implements Runnable { |
| int id = 0; |
| int timeoutSeconds = 10; |
| int jobDuration = 2; |
| |
| public Worker(int id, int timeout, int duration) { |
| this.id = id; |
| timeoutSeconds = timeout; |
| jobDuration = duration; |
| } |
| |
| @Override |
| public void run() { |
| boolean locked = false; |
| try { |
| Profiler p = new Profiler(); |
| p.start(); |
| locked = WorkLock.lock(timeoutSeconds); |
| p.stop(); |
| System.out.println("Thread " + id + " waited " + p.getDurationInMillis() + " ms, locked=" + locked); |
| if (locked) { |
| Thread.sleep(jobDuration * 1000); |
| } |
| } catch (InterruptedException e) { |
| s_logger.debug("[ignored] interupted while testing global lock."); |
| } finally { |
| if (locked) { |
| boolean unlocked = WorkLock.unlock(); |
| System.out.println("Thread " + id + " unlocked=" + unlocked); |
| } |
| } |
| } |
| } |
| |
| @Test |
| public void testTimeout() { |
| Thread[] pool = new Thread[50]; |
| for (int i = 0; i < pool.length; i++) { |
| pool[i] = new Thread(new Worker(i, 5, 3)); |
| } |
| for (int i = 0; i < pool.length; i++) { |
| pool[i].start(); |
| } |
| for (int i = 0; i < pool.length; i++) { |
| try { |
| pool[i].join(); |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| } |