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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/*
* Copyright (c) 2020, 2021, 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 8237858
* @summary SocketImpl.socketAccept() handles EINTR incorrectly
* @requires (os.family != "windows")
* @compile NativeThread.java
* @run main/othervm/native SocketReadInterruptTest 2000 3000
* @run main/othervm/native SocketReadInterruptTest 2000 0
*/
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.*;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
public class SocketReadInterruptTest {
public static void main(String[] args) throws Exception {
System.loadLibrary("NativeThread");
ExecutorService executor = Executors.newFixedThreadPool(2);
InetAddress loopback = InetAddress.getLoopbackAddress();
try ( ServerSocket ss = new ServerSocket(0, 50, loopback);
Socket s1 = new Socket(loopback, ss.getLocalPort());) {
Server server = new Server(ss, Integer.parseInt(args[0]));
Future<Result> f1 = executor.submit(server);
Client client = new Client(s1, Integer.parseInt(args[1]));
Future<Result> f2 = executor.submit(client);
long threadId = client.getID();
sleep(200);
System.out.println("Sending SIGPIPE to client thread.");
if (NativeThread.signal(threadId, NativeThread.SIGPIPE) != 0) {
throw new RuntimeException("Failed to interrupt the thread.");
}
Result r1 = f1.get();
if (r1.status == Result.FAIL) {
throw r1.exception;
}
Result r2 = f2.get();
if (r2.status == Result.FAIL) {
throw r2.exception;
}
System.out.println("OK!");
} finally {
executor.shutdown();
}
}
private static void sleep(long time) {
try {
Thread.sleep(time);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
static class Client implements Callable<Result> {
private volatile long threadId;
private final Socket client;
private final int timeout;
public Client(Socket s, int timeout) {
client = s;
this.timeout = timeout;
}
@Override
public Result call() {
threadId = NativeThread.getID();
byte[] arr = new byte[64];
try ( InputStream in = client.getInputStream();) {
client.setSoTimeout(timeout);
in.read(arr);
return new Result(Result.SUCCESS, null);
} catch (IOException ex) {
close();
return new Result(Result.FAIL, ex);
}
}
long getID() {
while (threadId == 0) {
sleep(5);
}
return threadId;
}
void close() {
if (!client.isClosed()) {
try {
client.close();
} catch (IOException ex) {
// ignore the exception.
}
}
}
}
static class Server implements Callable<Result> {
private final ServerSocket serverSocket;
private final int timeout;
public Server(ServerSocket ss, int timeout) {
serverSocket = ss;
this.timeout = timeout;
}
@Override
public Result call() {
try {
try ( Socket client = serverSocket.accept(); OutputStream outputStream = client.getOutputStream();) {
sleep(timeout);
outputStream.write("This is just a test string.".getBytes());
return new Result(Result.SUCCESS, null);
}
} catch (IOException e) {
close();
return new Result(Result.FAIL, e);
}
}
public void close() {
if (!serverSocket.isClosed()) {
try {
serverSocket.close();
} catch (IOException ex) {
}
}
}
}
static class Result {
static final int SUCCESS = 0;
static final int FAIL = 1;
final int status;
final Exception exception;
public Result(int status, Exception ex) {
this.status = status;
exception = ex;
}
}
}
|
