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test/jdk/java/nio/channels/spi/SelectorProvider/inheritedChannel/StateTest.java

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   1 /*
   2  * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */


  25  *
  26  *
  27  * Tests that the channel returned by System.inheritedChannel()
  28  * is in blocking mode, bound, and in the case of a SocketChannel
  29  * connected to a peer.
  30  *
  31  * The test works by launching a test service (called StateTestService) so
  32  * that it inherits each type of channel. The test service checks the
  33  * socket state and replies back to this class via an out-of-band
  34  * channel.
  35  */
  36 import java.io.IOException;
  37 import java.net.InetSocketAddress;
  38 import java.nio.ByteBuffer;
  39 import java.nio.channels.DatagramChannel;
  40 import java.nio.channels.SelectionKey;
  41 import java.nio.channels.Selector;
  42 import java.nio.channels.ServerSocketChannel;
  43 import java.nio.channels.SocketChannel;
  44 


  45 public class StateTest {
  46 
  47     private static int failures = 0;
  48 
  49     private static String TEST_SERVICE = "StateTestService";
  50 
  51     /*
  52      * Reads the test result from the "out-of-band" connection to the test service.
  53      *
  54      * The out-of-band connection is just a TCP connection from the service to
  55      * this class. waitForTestResult just waits (with timeout) for the service
  56      * to connect. Once connected it waits (with timeout) for the test result.
  57      * The test result is examined.
  58      */
  59     private static void waitForTestResult(ServerSocketChannel ssc, boolean expectFail) throws IOException {
  60         Selector sel = ssc.provider().openSelector();
  61         SelectionKey sk;
  62         SocketChannel sc;
  63 
  64         /*
  65          * Wait for service to connect
  66          */
  67         ssc.configureBlocking(false);
  68         sk = ssc.register(sel, SelectionKey.OP_ACCEPT);
  69         long to = 15*1000;
  70         sc = null;
  71         for (;;) {
  72             long st = System.currentTimeMillis();
  73             sel.select(to);
  74             if (sk.isAcceptable() && ((sc = ssc.accept()) != null)) {
  75                 // connection established
  76                 break;
  77             }
  78             sel.selectedKeys().remove(sk);
  79             to -= System.currentTimeMillis() - st;
  80             if (to <= 0) {
  81                 throw new IOException("Timed out waiting for service to report test result");
  82             }
  83         }
  84         sk.cancel();
  85         ssc.configureBlocking(false);
  86 
  87         /*
  88          * Wait for service to report test result
  89          */
  90         sc.configureBlocking(false);
  91         sk = sc.register(sel, SelectionKey.OP_READ);
  92         to = 5000;
  93         ByteBuffer bb = ByteBuffer.allocateDirect(20);
  94         for (;;) {
  95             long st = System.currentTimeMillis();
  96             sel.select(to);
  97             if (sk.isReadable()) {
  98                 int n = sc.read(bb);
  99                 if (n > 0) {
 100                     break;
 101                 }
 102                 if (n < 0) {
 103                     throw new IOException("Premature EOF - no test result from service");
 104                 }
 105             }
 106             sel.selectedKeys().remove(sk);
 107             to -= System.currentTimeMillis() - st;
 108             if (to <= 0) {
 109                 throw new IOException("Timed out waiting for service to report test result");
 110             }
 111         }
 112         sk.cancel();


   1 /*
   2  * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */


  25  *
  26  *
  27  * Tests that the channel returned by System.inheritedChannel()
  28  * is in blocking mode, bound, and in the case of a SocketChannel
  29  * connected to a peer.
  30  *
  31  * The test works by launching a test service (called StateTestService) so
  32  * that it inherits each type of channel. The test service checks the
  33  * socket state and replies back to this class via an out-of-band
  34  * channel.
  35  */
  36 import java.io.IOException;
  37 import java.net.InetSocketAddress;
  38 import java.nio.ByteBuffer;
  39 import java.nio.channels.DatagramChannel;
  40 import java.nio.channels.SelectionKey;
  41 import java.nio.channels.Selector;
  42 import java.nio.channels.ServerSocketChannel;
  43 import java.nio.channels.SocketChannel;
  44 
  45 import jdk.test.lib.Utils;
  46 
  47 public class StateTest {
  48 
  49     private static int failures = 0;
  50 
  51     private static String TEST_SERVICE = "StateTestService";
  52 
  53     /*
  54      * Reads the test result from the "out-of-band" connection to the test service.
  55      *
  56      * The out-of-band connection is just a TCP connection from the service to
  57      * this class. waitForTestResult just waits (with timeout) for the service
  58      * to connect. Once connected it waits (with timeout) for the test result.
  59      * The test result is examined.
  60      */
  61     private static void waitForTestResult(ServerSocketChannel ssc, boolean expectFail) throws IOException {
  62         Selector sel = ssc.provider().openSelector();
  63         SelectionKey sk;
  64         SocketChannel sc;
  65 
  66         /*
  67          * Wait for service to connect
  68          */
  69         ssc.configureBlocking(false);
  70         sk = ssc.register(sel, SelectionKey.OP_ACCEPT);
  71         long to = Utils.adjustTimeout(15*1000);
  72         sc = null;
  73         for (;;) {
  74             long st = System.currentTimeMillis();
  75             sel.select(to);
  76             if (sk.isAcceptable() && ((sc = ssc.accept()) != null)) {
  77                 // connection established
  78                 break;
  79             }
  80             sel.selectedKeys().remove(sk);
  81             to -= System.currentTimeMillis() - st;
  82             if (to <= 0) {
  83                 throw new IOException("Timed out waiting for service to report test result");
  84             }
  85         }
  86         sk.cancel();
  87         ssc.configureBlocking(false);
  88 
  89         /*
  90          * Wait for service to report test result
  91          */
  92         sc.configureBlocking(false);
  93         sk = sc.register(sel, SelectionKey.OP_READ);
  94         to = Utils.adjustTimeout(5000);
  95         ByteBuffer bb = ByteBuffer.allocateDirect(20);
  96         for (;;) {
  97             long st = System.currentTimeMillis();
  98             sel.select(to);
  99             if (sk.isReadable()) {
 100                 int n = sc.read(bb);
 101                 if (n > 0) {
 102                     break;
 103                 }
 104                 if (n < 0) {
 105                     throw new IOException("Premature EOF - no test result from service");
 106                 }
 107             }
 108             sel.selectedKeys().remove(sk);
 109             to -= System.currentTimeMillis() - st;
 110             if (to <= 0) {
 111                 throw new IOException("Timed out waiting for service to report test result");
 112             }
 113         }
 114         sk.cancel();


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