123 lines
4.2 KiB
Java
123 lines
4.2 KiB
Java
/*
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* Copyright 2012 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.testsuite.transport.socket;
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import io.netty.bootstrap.Bootstrap;
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import io.netty.buffer.Unpooled;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.ChannelOption;
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import io.netty.channel.SimpleChannelInboundHandler;
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import io.netty.channel.socket.DatagramChannel;
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import io.netty.channel.socket.DatagramPacket;
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import io.netty.channel.socket.oio.OioDatagramChannel;
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import io.netty.util.NetUtil;
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import org.junit.Test;
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import java.net.InetSocketAddress;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.TimeUnit;
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import static org.junit.Assert.*;
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public class DatagramMulticastTest extends AbstractDatagramTest {
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@Test
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public void testMulticast() throws Throwable {
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run();
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}
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public void testMulticast(Bootstrap sb, Bootstrap cb) throws Throwable {
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MulticastTestHandler mhandler = new MulticastTestHandler();
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sb.handler(new SimpleChannelInboundHandler<Object>() {
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@Override
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public void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
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// Nothing will be sent.
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}
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});
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cb.handler(mhandler);
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sb.option(ChannelOption.IP_MULTICAST_IF, NetUtil.LOOPBACK_IF);
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sb.option(ChannelOption.SO_REUSEADDR, true);
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cb.option(ChannelOption.IP_MULTICAST_IF, NetUtil.LOOPBACK_IF);
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cb.option(ChannelOption.SO_REUSEADDR, true);
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cb.localAddress(addr.getPort());
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Channel sc = sb.bind().sync().channel();
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if (sc instanceof OioDatagramChannel) {
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// skip the test for OIO, as it fails because of
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// No route to host which makes no sense.
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// Maybe a JDK bug ?
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sc.close().awaitUninterruptibly();
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return;
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}
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DatagramChannel cc = (DatagramChannel) cb.bind().sync().channel();
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String group = "230.0.0.1";
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InetSocketAddress groupAddress = new InetSocketAddress(group, addr.getPort());
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cc.joinGroup(groupAddress, NetUtil.LOOPBACK_IF).sync();
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sc.writeAndFlush(new DatagramPacket(Unpooled.copyInt(1), groupAddress)).sync();
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assertTrue(mhandler.await());
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// leave the group
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cc.leaveGroup(groupAddress, NetUtil.LOOPBACK_IF).sync();
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// sleep a second to make sure we left the group
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Thread.sleep(1000);
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// we should not receive a message anymore as we left the group before
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sc.writeAndFlush(new DatagramPacket(Unpooled.copyInt(1), groupAddress)).sync();
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mhandler.await();
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sc.close().awaitUninterruptibly();
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cc.close().awaitUninterruptibly();
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}
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private static final class MulticastTestHandler extends SimpleChannelInboundHandler<DatagramPacket> {
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private final CountDownLatch latch = new CountDownLatch(1);
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private boolean done;
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private volatile boolean fail;
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@Override
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protected void channelRead0(ChannelHandlerContext ctx, DatagramPacket msg) throws Exception {
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if (done) {
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fail = true;
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}
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assertEquals(1, msg.content().readInt());
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latch.countDown();
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// mark the handler as done as we only are supposed to receive one message
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done = true;
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}
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public boolean await() throws Exception {
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boolean success = latch.await(10, TimeUnit.SECONDS);
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if (fail) {
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// fail if we receive an message after we are done
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fail();
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}
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return success;
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}
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}
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}
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