| /* |
| * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 4927640 |
| * @summary Tests the SCTP protocol implementation |
| * @author chegar |
| */ |
| |
| import java.net.InetSocketAddress; |
| import java.net.SocketAddress; |
| import java.io.IOException; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| import java.util.concurrent.CountDownLatch; |
| import java.nio.channels.AlreadyConnectedException; |
| import java.nio.channels.Selector; |
| import java.nio.channels.SelectionKey; |
| import com.sun.nio.sctp.SctpChannel; |
| import com.sun.nio.sctp.SctpServerChannel; |
| import static java.lang.System.out; |
| import static java.lang.System.err; |
| |
| public class NonBlockingAccept { |
| static CountDownLatch acceptLatch = new CountDownLatch(1); |
| static final int SEL_TIMEOUT = 10000; |
| static final int NUM_TEST_CONNECTIONS = 10; |
| |
| void test(String[] args) { |
| SocketAddress address = null; |
| NonblockingServer server; |
| |
| if (!Util.isSCTPSupported()) { |
| out.println("SCTP protocol is not supported"); |
| out.println("Test cannot be run"); |
| return; |
| } |
| |
| if (args.length == 2) { |
| /* requested to connecct to a specific address */ |
| try { |
| int port = Integer.valueOf(args[1]); |
| address = new InetSocketAddress(args[0], port); |
| } catch (NumberFormatException nfe) { |
| err.println(nfe); |
| } |
| } else { |
| /* start server on local machine, default */ |
| try { |
| server = new NonblockingServer(); |
| server.start(); |
| address = server.address(); |
| debug("Server started and listening on " + address); |
| } catch (IOException ioe) { |
| ioe.printStackTrace(); |
| return; |
| } |
| } |
| |
| doClient(address); |
| } |
| |
| void doClient(SocketAddress peerAddress) { |
| Set<SctpChannel> channels = new HashSet<SctpChannel>(NUM_TEST_CONNECTIONS); |
| |
| try { |
| for (int i=0; i<NUM_TEST_CONNECTIONS;) { |
| debug("connecting " + ++i); |
| channels.add(SctpChannel.open(peerAddress, 0, 0)); |
| sleep(100); |
| } |
| |
| /* don't close the channels until they have been accepted */ |
| acceptLatch.await(); |
| |
| for(SctpChannel sc: channels) |
| sc.close(); |
| } catch (IOException ioe) { |
| unexpected(ioe); |
| } catch (InterruptedException ie) { |
| unexpected(ie); |
| } |
| } |
| |
| class NonblockingServer implements Runnable |
| { |
| final InetSocketAddress serverAddr; |
| private SctpServerChannel ssc; |
| private Thread serverThread; |
| |
| public NonblockingServer() throws IOException { |
| ssc = SctpServerChannel.open().bind(null); |
| java.util.Set<SocketAddress> addrs = ssc.getAllLocalAddresses(); |
| if (addrs.isEmpty()) |
| debug("addrs should not be empty"); |
| |
| serverAddr = (InetSocketAddress) addrs.iterator().next(); |
| } |
| |
| void start() { |
| serverThread = new Thread(this, "NonblockingServer-" + |
| serverAddr.getPort()); |
| serverThread.start(); |
| } |
| |
| InetSocketAddress address () { |
| return serverAddr; |
| } |
| |
| @Override |
| public void run() { |
| Selector acceptSelector = null; |
| SelectionKey acceptKey = null; |
| |
| try { |
| acceptSelector = Selector.open(); |
| ssc.configureBlocking(false); |
| check(ssc.isBlocking() == false, "Should be in non-blocking mode"); |
| acceptKey = ssc.register(acceptSelector, SelectionKey.OP_ACCEPT); |
| |
| int connectionsAccepted = 0; |
| while (connectionsAccepted < NUM_TEST_CONNECTIONS) { |
| int keysAdded = acceptSelector.select(SEL_TIMEOUT); |
| if (keysAdded > 0) { |
| Set<SelectionKey> keys = acceptSelector.selectedKeys(); |
| Iterator<SelectionKey> i = keys.iterator(); |
| while(i.hasNext()) { |
| SelectionKey sk = i.next(); |
| i.remove(); |
| SctpServerChannel nextReady = |
| (SctpServerChannel)sk.channel(); |
| check(nextReady.equals(ssc), |
| "channels should be equal"); |
| check(sk.isAcceptable(), |
| "key should be acceptable"); |
| check(!sk.isReadable(), |
| "key should not be readable"); |
| check(!sk.isWritable(), |
| "key should not be writable"); |
| check(!sk.isConnectable(), |
| "key should not be connectable"); |
| SctpChannel acceptsc = nextReady.accept(); |
| connectionsAccepted++; |
| debug("Accepted " + connectionsAccepted + " connections"); |
| check(acceptsc != null, |
| "Accepted channel should not be null"); |
| if (acceptsc != null) { |
| checkAcceptedChannel(acceptsc); |
| acceptsc.close(); |
| } |
| } /* while */ |
| } /* if */ |
| } /* while */ |
| } catch (IOException ioe) { |
| ioe.printStackTrace(); |
| } finally { |
| acceptLatch.countDown(); |
| if (acceptKey != null) acceptKey.cancel(); |
| try { if (acceptSelector != null) acceptSelector.close(); } |
| catch (IOException ioe) { unexpected(ioe); } |
| try { if (ssc != null) ssc.close(); } |
| catch (IOException ioe) { unexpected(ioe); } |
| } |
| } |
| } |
| |
| void checkAcceptedChannel(SctpChannel sc) { |
| try { |
| debug("Checking accepted SctpChannel"); |
| check(sc.association() != null, |
| "accepted channel should have an association"); |
| check(!(sc.getRemoteAddresses().isEmpty()), |
| "accepted channel should be connected"); |
| check(!(sc.isConnectionPending()), |
| "accepted channel should not have a connection pending"); |
| check(sc.isBlocking(), |
| "accepted channel should be blocking"); |
| try { sc.connect(new TestSocketAddress()); fail(); } |
| catch (AlreadyConnectedException unused) { pass(); } |
| try { sc.bind(new TestSocketAddress()); fail(); } |
| catch (AlreadyConnectedException unused) { pass(); } |
| } catch (IOException unused) { fail(); } |
| } |
| |
| static class TestSocketAddress extends SocketAddress {} |
| |
| //--------------------- Infrastructure --------------------------- |
| boolean debug = true; |
| volatile int passed = 0, failed = 0; |
| void pass() {passed++;} |
| void fail() {failed++; Thread.dumpStack();} |
| void fail(String msg) {err.println(msg); fail();} |
| void unexpected(Throwable t) {failed++; t.printStackTrace();} |
| void check(boolean cond) {if (cond) pass(); else fail();} |
| void check(boolean cond, String failMessage) {if (cond) pass(); else fail(failMessage);} |
| void debug(String message) {if(debug) { out.println(message); } } |
| void sleep(long millis) { try { Thread.currentThread().sleep(millis); } |
| catch(InterruptedException ie) { unexpected(ie); }} |
| public static void main(String[] args) throws Throwable { |
| Class<?> k = new Object(){}.getClass().getEnclosingClass(); |
| try {k.getMethod("instanceMain",String[].class) |
| .invoke( k.newInstance(), (Object) args);} |
| catch (Throwable e) {throw e.getCause();}} |
| public void instanceMain(String[] args) throws Throwable { |
| try {test(args);} catch (Throwable t) {unexpected(t);} |
| out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); |
| if (failed > 0) throw new AssertionError("Some tests failed");} |
| |
| } |