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/**
* Copyright 2012 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package com.jogamp.common.util.locks;
import java.io.IOException;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.FixMethodOrder;
import org.junit.runners.MethodSorters;
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class TestSingletonServerSocket00 {
// public static final String SINGLE_INSTANCE_LOCK_FILE = "UITestCase.lock";
public static final int SINGLE_INSTANCE_LOCK_PORT = 59999;
public static final long SINGLE_INSTANCE_LOCK_TO = 3*60*1000; // wait up to 3 min
public static final long SINGLE_INSTANCE_LOCK_POLL = 100; // poll every 100ms
private static volatile SingletonInstance singletonInstance;
@BeforeClass
public static void oneTimeSetUp() {
// one-time initialization code
singletonInstance = SingletonInstance.createServerSocket(SINGLE_INSTANCE_LOCK_POLL, SINGLE_INSTANCE_LOCK_PORT);
}
@Test
public void testLockUnlock() {
Assert.assertTrue("Could not lock single instance: "+singletonInstance.getName(), singletonInstance.tryLock(SINGLE_INSTANCE_LOCK_TO));
System.gc(); // force cleanup
singletonInstance.unlock();
}
@Test
public void test2ndInstanceLockTimeout() {
Assert.assertTrue("Could not lock single instance: "+singletonInstance.getName(), singletonInstance.tryLock(SINGLE_INSTANCE_LOCK_TO));
final SingletonInstance instanceTwo = SingletonInstance.createServerSocket(SINGLE_INSTANCE_LOCK_POLL, SINGLE_INSTANCE_LOCK_PORT);
Assert.assertFalse("Could lock 2nd instance: "+instanceTwo.getName(), instanceTwo.tryLock(1000)); // 10x
System.gc(); // force cleanup
singletonInstance.unlock();
}
private Thread startLockUnlockOffThread(final int i) {
final Thread t = new Thread(new Runnable() {
public void run() {
final SingletonInstance myLock = SingletonInstance.createServerSocket(10, SINGLE_INSTANCE_LOCK_PORT);
System.err.println(Thread.currentThread().getName()+" LOCK try ..");
Assert.assertTrue(Thread.currentThread().getName()+" - Could not lock instance: "+myLock.getName(), myLock.tryLock(1000));
System.err.println(Thread.currentThread().getName()+" LOCK ON");
try {
Thread.sleep(300);
} catch (final InterruptedException e) { }
myLock.unlock();
System.err.println(Thread.currentThread().getName()+" LOCK OFF");
}
}, "LockUnlock #"+i);
t.start();
return t;
}
@Test
public void testOffthreadLockUnlock() throws InterruptedException {
Assert.assertTrue("Could not lock single instance: "+singletonInstance.getName(), singletonInstance.tryLock(SINGLE_INSTANCE_LOCK_TO));
final Thread t1 = startLockUnlockOffThread(1);
final Thread t2 = startLockUnlockOffThread(2);
Thread.sleep(300);
System.gc(); // force cleanup
singletonInstance.unlock();
while(t1.isAlive() || t2.isAlive()) {
Thread.sleep(100);
}
}
public static void main(final String args[]) throws IOException, InterruptedException {
final String tstname = TestSingletonServerSocket00.class.getName();
org.junit.runner.JUnitCore.main(tstname);
}
}
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