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/* 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.harmony.tests.java.nio.channels;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.nio.channels.SelectableChannel;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import junit.framework.TestCase;
public class UnixSelectorTest extends TestCase {
static class Server {
ServerSocketChannel serverChannel = ServerSocketChannel.open();
ServerSocket socket = null;
Server() throws Exception {
serverChannel.configureBlocking(false);
}
public void initialize() throws Exception {
this.socket = serverChannel.socket();
socket.bind(null);
}
public void accept() {
Thread serverThread = new Thread(new Runnable() {
public void run() {
try {
while (serverChannel.accept() == null) {
Thread.sleep(1000);
}
} catch (Exception e) {}
}
});
serverThread.start();
}
public void close() throws Exception{
serverChannel.close();
}
}
public void testSelectorAcceptAndRead() throws Exception {
Selector sel0 = Selector.open();
Selector sel1 = Selector.open();
Server server = new Server();
SelectionKey mkey0 = server.serverChannel.register(sel0, SelectionKey.OP_ACCEPT);
server.serverChannel.register(sel1, SelectionKey.OP_ACCEPT);
// HUP is treating as acceptable
assertEquals(1, sel0.select(100));
assertEquals(true, sel0.selectedKeys().contains(mkey0));
server.initialize();
// after bind can not accept
assertEquals(0, sel1.select(100));
server.accept();
Thread.sleep(1000);
SocketChannel socketChannel = SocketChannel.open();
socketChannel.configureBlocking(false);
Selector sel2 = Selector.open();
socketChannel.register(sel2, SelectionKey.OP_WRITE);
boolean isConnected = socketChannel.connect(server.socket.getLocalSocketAddress());
if (!isConnected) {
socketChannel.finishConnect();
}
assertEquals(true, socketChannel.isConnected());
server.close();
Thread.sleep(3000);
assertEquals(true, socketChannel.isConnected());
assertEquals(1, sel2.select(100));
}
public void testSelectUnConnectedChannel() throws Exception {
SocketChannel socketChannel2 = SocketChannel.open();
socketChannel2.configureBlocking(false);
Selector sel3 = Selector.open();
SelectionKey mkey3 = socketChannel2.register(sel3, SelectionKey.OP_WRITE);
// HUP is also treating as writable
assertEquals(1, sel3.select(100));
assertEquals(false, mkey3.isConnectable());
// even the channel is not connected, the selector could be writable
assertEquals(false, socketChannel2.isConnected());
assertEquals(true, mkey3.isWritable());
Selector sel4 = Selector.open();
SelectionKey mkey4 = socketChannel2.register(sel4, SelectionKey.OP_CONNECT);
assertEquals(1, sel4.select(100));
assertEquals(false, mkey4.isWritable());
assertEquals(true, mkey4.isConnectable());
Selector sel5 = Selector.open();
SelectionKey mkey5 = socketChannel2.register(sel5, SelectionKey.OP_CONNECT | SelectionKey.OP_WRITE);
assertEquals(1, sel5.select(100));
assertEquals(true, mkey5.isWritable());
assertEquals(true, mkey5.isConnectable());
}
}
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