/*
* Copyright 2014 Red Hat, Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* The Apache License v2.0 is available at
* http://www.opensource.org/licenses/apache2.0.php
*
* You may elect to redistribute this code under either of these licenses.
*/
package io.vertx.test.core;
import io.vertx.core.AsyncResult;
import io.vertx.core.Context;
import io.vertx.core.Vertx;
import io.vertx.core.shareddata.Lock;
import io.vertx.core.shareddata.SharedData;
import org.junit.Test;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;
import static io.vertx.test.core.TestUtils.*;
/**
* @author <a href="http://tfox.org">Tim Fox</a>
*/
public class AsynchronousLockTest extends VertxTestBase {
protected Vertx getVertx() {
return vertx;
}
@Test
public void testIllegalArguments() throws Exception {
assertNullPointerException(() -> getVertx().sharedData().getLock(null, ar -> {}));
assertNullPointerException(() -> getVertx().sharedData().getLock("foo", null));
assertNullPointerException(() -> getVertx().sharedData().getLockWithTimeout(null, 1, ar -> {}));
assertNullPointerException(() -> getVertx().sharedData().getLockWithTimeout("foo", 1, null));
assertIllegalArgumentException(() -> getVertx().sharedData().getLockWithTimeout("foo", -1, ar -> {}));
}
@Test
public void testAcquire() {
getVertx().sharedData().getLock("foo", ar -> {
assertTrue(ar.succeeded());
long start = System.currentTimeMillis();
Lock lock = ar.result();
vertx.setTimer(1000, tid -> {
lock.release();
});
getVertx().sharedData().getLock("foo", ar2 -> {
assertTrue(ar2.succeeded());
// Should be delayed
assertTrue(System.currentTimeMillis() - start >= 1000);
testComplete();
});
});
await();
}
@Test
public void testAcquireOnSameEventLoop() {
Vertx vertx = getVertx();
Context context = vertx.getOrCreateContext();
SharedData sharedData = vertx.sharedData();
AtomicReference<Long> start = new AtomicReference<>();
context.runOnContext(v -> {
sharedData.getLock("foo", ar -> {
assertTrue(ar.succeeded());
start.set(System.currentTimeMillis());
Lock lock = ar.result();
vertx.setTimer(1000, tid -> {
lock.release();
});
context.runOnContext(v2 -> {
sharedData.getLock("foo", ar2 -> {
assertTrue(ar2.succeeded());
// Should be delayed
assertTrue(System.currentTimeMillis() - start.get() >= 1000);
testComplete();
});
});
});
});
await();
}
@Test
public void testAcquireOnExecuteBlocking() {
Vertx vertx = getVertx();
SharedData sharedData = vertx.sharedData();
AtomicReference<Long> start = new AtomicReference<>();
vertx.<Lock>executeBlocking(future -> {
CountDownLatch acquireLatch = new CountDownLatch(1);
AtomicReference<AsyncResult<Lock>> lockReference = new AtomicReference<>();
sharedData.getLock("foo", ar -> {
lockReference.set(ar);
acquireLatch.countDown();
});
try {
awaitLatch(acquireLatch);
AsyncResult<Lock> ar = lockReference.get();
if (ar.succeeded()) {
future.complete(ar.result());
} else {
future.fail(ar.cause());
}
} catch (InterruptedException e) {
future.fail(e);
}
}, ar -> {
if (ar.succeeded()) {
start.set(System.currentTimeMillis());
vertx.setTimer(1000, tid -> {
ar.result().release();
});
vertx.executeBlocking(future -> {
CountDownLatch acquireLatch = new CountDownLatch(1);
AtomicReference<AsyncResult<Lock>> lockReference = new AtomicReference<>();
sharedData.getLock("foo", ar2 -> {
lockReference.set(ar2);
acquireLatch.countDown();
});
try {
awaitLatch(acquireLatch);
AsyncResult<Lock> ar3 = lockReference.get();
if (ar3.succeeded()) {
future.complete(ar3.result());
} else {
future.fail(ar3.cause());
}
} catch (InterruptedException e) {
future.fail(e);
}
}, ar4 -> {
if (ar4.succeeded()) {
// Should be delayed
assertTrue(System.currentTimeMillis() - start.get() >= 1000);
testComplete();
} else {
fail(ar4.cause());
}
});
} else {
fail(ar.cause());
}
});
await();
}
@Test
public void testAcquireDifferentLocks() {
getVertx().sharedData().getLock("foo", ar -> {
assertTrue(ar.succeeded());
long start = System.currentTimeMillis();
Lock lock = ar.result();
getVertx().sharedData().getLock("bar", ar2 -> {
assertTrue(ar2.succeeded());
assertTrue(System.currentTimeMillis() - start < 2000);
testComplete();
});
});
await();
}
@Test
public void testAcquireTimeout() {
getVertx().sharedData().getLock("foo", ar -> {
assertTrue(ar.succeeded());
long start = System.currentTimeMillis();
getVertx().sharedData().getLockWithTimeout("foo", 1000, ar2 -> {
assertFalse(ar2.succeeded());
// Should be delayed
assertTrue(System.currentTimeMillis() - start >= 1000);
testComplete();
});
});
await();
}
}