test/com/sun/nio/sctp/SctpServerChannel/NonBlockingAccept.java - toolchain/jdk/jdk9_jdk - Git at Google

 /*
  * 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");}

 }
	/*
	* 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");}

	}