1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/*
* Copyright (c) 2001, 2018, 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
* @summary Test nonblocking connect and finishConnect
* @bug 4457776
* @library .. /test/lib
* @build jdk.test.lib.Utils TestServers
* @run main BasicConnect
*/
import java.net.*;
import java.nio.*;
import java.nio.channels.*;
import java.nio.channels.spi.SelectorProvider;
import java.util.*;
/**
* Typically there would be more than one channel registered to select
* on, this test is just a very simple version with only one channel
* registered for the connectSelector.
*/
public class BasicConnect {
public static void main(String[] args) throws Exception {
Selector connectSelector =
SelectorProvider.provider().openSelector();
try (TestServers.EchoServer echoServer
= TestServers.EchoServer.startNewServer(100)) {
InetSocketAddress isa
= new InetSocketAddress(echoServer.getAddress(),
echoServer.getPort());
SocketChannel sc = SocketChannel.open();
sc.configureBlocking(false);
boolean result = sc.connect(isa);
if (result) {
System.out.println("Socket immediately connected on "
+ System.getProperty("os.name")
+ ": " + sc);
}
while (!result) {
SelectionKey connectKey = sc.register(connectSelector,
SelectionKey.OP_CONNECT);
int keysAdded = connectSelector.select();
if (keysAdded > 0) {
Set readyKeys = connectSelector.selectedKeys();
Iterator i = readyKeys.iterator();
while (i.hasNext()) {
SelectionKey sk = (SelectionKey)i.next();
i.remove();
SocketChannel nextReady = (SocketChannel)sk.channel();
result = nextReady.finishConnect();
if (result)
sk.cancel();
}
}
}
byte[] bs = new byte[] { (byte)0xca, (byte)0xfe,
(byte)0xba, (byte)0xbe };
ByteBuffer bb = ByteBuffer.wrap(bs);
sc.configureBlocking(true);
sc.write(bb);
bb.rewind();
ByteBuffer bb2 = ByteBuffer.allocateDirect(100);
int n = sc.read(bb2);
bb2.flip();
sc.close();
connectSelector.close();
if (!bb.equals(bb2))
throw new Exception("Echoed bytes incorrect: Sent "
+ bb + ", got " + bb2);
}
}
}
|
