test/java/nio/channels/SocketChannel/FinishConnect.java

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   1 /*
   2  * Copyright (c) 2001, 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  */
  23 
  24 /* @test
  25  * @summary Test SocketChannel.finishConnect
  26  * @library ..
  27  */
  28 
  29 import java.net.*;
  30 import java.nio.*;
  31 import java.nio.channels.*;
  32 import java.nio.channels.spi.SelectorProvider;
  33 import java.nio.charset.*;
  34 import java.util.*;
  35 
  36 
  37 public class FinishConnect {
  38 
  39     static final int DAYTIME_PORT = 13;
  40     static final String DAYTIME_HOST = TestUtil.HOST;
  41 
  42     public static void main(String[] args) throws Exception {
  43         test1(true, true);
  44         test1(true, false);
  45         test1(false, true);
  46         test1(false, false);
  47         test2();



  48     }
  49 
  50     static void test1(boolean select, boolean setBlocking) throws Exception {
  51         InetSocketAddress isa
  52             = new InetSocketAddress(InetAddress.getByName(DAYTIME_HOST),
  53                                     DAYTIME_PORT);
  54         SocketChannel sc = SocketChannel.open();
  55         sc.configureBlocking(false);
  56         boolean connected = sc.connect(isa);
  57         int attempts = 0;
  58 
  59         try {
  60             sc.connect(isa);
  61             throw new RuntimeException("Allowed another connect call");
  62         } catch (IllegalStateException ise) {
  63             // Correct behavior
  64         }
  65 
  66         if (setBlocking)
  67             sc.configureBlocking(true);
  68 
  69         if (!connected && select && !setBlocking) {
  70             Selector selector = SelectorProvider.provider().openSelector();
  71             sc.register(selector, SelectionKey.OP_CONNECT);
  72             while (!connected) {
  73                 int keysAdded = selector.select(100);


  92             connected = sc.finishConnect();
  93         }
  94 
  95         ByteBuffer bb = ByteBuffer.allocateDirect(100);
  96         int bytesRead = 0;
  97         int totalRead = 0;
  98         while (totalRead < 20) {
  99             bytesRead = sc.read(bb);
 100             if (bytesRead > 0)
 101                 totalRead += bytesRead;
 102             if (bytesRead < 0)
 103                 throw new RuntimeException("Message shorter than expected");
 104         }
 105         bb.position(bb.position() - 2);         // Drop CRLF
 106         bb.flip();
 107         CharBuffer cb = Charset.forName("US-ASCII").newDecoder().decode(bb);
 108         System.err.println(isa + " says: \"" + cb + "\"");
 109         sc.close();
 110     }
 111 
 112     static void test2() throws Exception {
 113         InetSocketAddress isa
 114             = new InetSocketAddress(InetAddress.getByName(DAYTIME_HOST),
 115                                     DAYTIME_PORT);
 116         boolean done = false;
 117         int globalAttempts = 0;

 118         while (!done) {
 119             if (globalAttempts++ > 50)










 120                 throw new RuntimeException("Failed to connect");

 121             SocketChannel sc = SocketChannel.open();
 122             sc.configureBlocking(false);
 123             boolean connected = sc.connect(isa);
 124             int localAttempts = 0;
 125             while (!connected) {
 126                 if (localAttempts++ > 500)
 127                     throw new RuntimeException("Failed to connect");
 128                 connected = sc.finishConnect();
 129                 if (connected) {
 130                     done = true;
 131                     break;
 132                 }
 133                 Thread.sleep(10);
 134             }



 135             sc.close();
 136         }
 137     }
 138 
 139 }
   1 /*
   2  * Copyright (c) 2001, 2012, 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  */
  23 
  24 /* @test
  25  * @summary Test SocketChannel.finishConnect
  26  * @library ..
  27  */
  28 
  29 import java.net.*;
  30 import java.nio.*;
  31 import java.nio.channels.*;
  32 import java.nio.channels.spi.SelectorProvider;
  33 import java.nio.charset.*;
  34 import java.util.*;
  35 
  36 
  37 public class FinishConnect {
  38 



  39     public static void main(String[] args) throws Exception {
  40         try (TestUtil.DayTimeServer dayTimeServer =
  41                         TestUtil.DayTimeServer.startNewServer(100)) {
  42             test1(dayTimeServer, true, true);
  43             test1(dayTimeServer, true, false);
  44             test1(dayTimeServer, false, true);
  45             test1(dayTimeServer, false, false);
  46             test2(dayTimeServer);
  47         }
  48     }
  49 
  50     static void test1(TestUtil.DayTimeServer daytimeServer,
  51             boolean select, boolean setBlocking) throws Exception {
  52         InetSocketAddress isa = new InetSocketAddress(daytimeServer.getAddress(),
  53                 daytimeServer.getPort());
  54         SocketChannel sc = SocketChannel.open();
  55         sc.configureBlocking(false);
  56         boolean connected = sc.connect(isa);
  57         int attempts = 0;
  58 
  59         try {
  60             sc.connect(isa);
  61             throw new RuntimeException("Allowed another connect call");
  62         } catch (IllegalStateException ise) {
  63             // Correct behavior
  64         }
  65 
  66         if (setBlocking)
  67             sc.configureBlocking(true);
  68 
  69         if (!connected && select && !setBlocking) {
  70             Selector selector = SelectorProvider.provider().openSelector();
  71             sc.register(selector, SelectionKey.OP_CONNECT);
  72             while (!connected) {
  73                 int keysAdded = selector.select(100);


  92             connected = sc.finishConnect();
  93         }
  94 
  95         ByteBuffer bb = ByteBuffer.allocateDirect(100);
  96         int bytesRead = 0;
  97         int totalRead = 0;
  98         while (totalRead < 20) {
  99             bytesRead = sc.read(bb);
 100             if (bytesRead > 0)
 101                 totalRead += bytesRead;
 102             if (bytesRead < 0)
 103                 throw new RuntimeException("Message shorter than expected");
 104         }
 105         bb.position(bb.position() - 2);         // Drop CRLF
 106         bb.flip();
 107         CharBuffer cb = Charset.forName("US-ASCII").newDecoder().decode(bb);
 108         System.err.println(isa + " says: \"" + cb + "\"");
 109         sc.close();
 110     }
 111 
 112     static void test2(TestUtil.DayTimeServer daytimeServer) throws Exception {
 113         InetSocketAddress isa = new InetSocketAddress(daytimeServer.getAddress(),
 114                 daytimeServer.getPort());

 115         boolean done = false;
 116         int globalAttempts = 0;
 117         int connectSuccess = 0;
 118         while (!done) {
 119             // When using a local daytime server it is not always possible
 120             // to get a pending connection, as sc.connect(isa) may always
 121             // return true. 
 122             // So we're going to throw the exception only if there was
 123             // at least 1 case where we did not manage to connect.
 124             if (globalAttempts++ > 50) {
 125                 if (globalAttempts == connectSuccess + 1) {
 126                     System.err.println("Can't fully test on "
 127                             + System.getProperty("os.name"));
 128                     break;
 129                 }
 130                 throw new RuntimeException("Failed to connect");
 131             }
 132             SocketChannel sc = SocketChannel.open();
 133             sc.configureBlocking(false);
 134             boolean connected = sc.connect(isa);
 135             int localAttempts = 0;
 136             while (!connected) {
 137                 if (localAttempts++ > 500)
 138                     throw new RuntimeException("Failed to connect");
 139                 connected = sc.finishConnect();
 140                 if (connected) {
 141                     done = true;
 142                     break;
 143                 }
 144                 Thread.sleep(10);
 145             }
 146             if (connected) {
 147                 connectSuccess++;
 148             }
 149             sc.close();
 150         }
 151     }
 152 
 153 }