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
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
|
package org.jgroups.tests;
import org.testng.annotations.*;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import org.jgroups.Global;
/**
* Tests Thread.interrupt() against InputStream.read(), Object.wait() and Thread.sleep()
* @author Bela Ban Oct 5 2001
*/
@Test(groups=Global.FUNCTIONAL)
public class InterruptTest {
static final long TIMEOUT=3000;
static final int SLEEP=1;
static final int WAIT=2;
static final int READ=3;
static final int SOCKET_READ=4;
static String modeToString(int m) {
switch(m) {
case SLEEP:
return "SLEEP";
case WAIT:
return "WAIT";
case READ:
return "READ";
case SOCKET_READ:
return "SOCKET_READ";
default:
return "<unknown>";
}
}
/**
* Starts the Interruptible and interrupts after TIMEOUT milliseconds. Then joins thread
* (waiting for TIMEOUT msecs). PASS if thread dead, FAIL if still alive
*/
public static void testSleepInterrupt() {
SleeperThread thread=new SleeperThread(SLEEP);
runTest(thread);
}
public static void testWaitInterrupt() {
SleeperThread thread=new SleeperThread(WAIT);
runTest(thread);
}
/* public void testSocketReadInterrupt() {
SleeperThread thread=new SleeperThread(SOCKET_READ);
runTest(thread);
}
public void testReadInterrupt() {
SleeperThread thread=new SleeperThread(READ);
runTest(thread);
}*/
static void runTest(SleeperThread thread) {
System.out.println();
System.out.println("InterruptTest.runTest(" + modeToString(thread.getMode()) + "): starting other thread");
thread.start();
System.out.println("InterruptTest.runTest(" + modeToString(thread.getMode()) + "): starting other thread -- done");
System.out.println("InterruptTest.runTest(" + modeToString(thread.getMode()) + "): sleeping for " + TIMEOUT + " msecs");
sleep(TIMEOUT);
System.out.println("InterruptTest.runTest(" + modeToString(thread.getMode()) + "): sleeping -- done");
System.out.println("InterruptTest.runTest(" + modeToString(thread.getMode()) + "): interrupting other thread");
thread.interrupt();
System.out.println("InterruptTest.runTest(" + modeToString(thread.getMode()) + "): interrupting other thread -- done");
System.out.println("InterruptTest.runTest(" + modeToString(thread.getMode()) + "): joining other thread (timeout=" + TIMEOUT + " msecs");
try {
thread.join(TIMEOUT);
}
catch(InterruptedException e) {
e.printStackTrace();
}
System.out.println("InterruptTest.runTest(" + modeToString(thread.getMode()) + "): joining other thread -- done");
System.out.println("InterruptTest.runTest(" + modeToString(thread.getMode()) + "): thread.isAlive()=" + thread.isAlive());
assert !thread.isAlive();
}
static void sleep(long msecs) {
try {
Thread.sleep(msecs);
}
catch(Exception ex) {
System.err.println("InterruptTest.sleep(): " + ex);
}
}
static class SleeperThread extends Thread {
int mode;
DatagramSocket sock=null;
SleeperThread(int mode) {
this.mode=mode;
}
public int getMode() {
return mode;
}
public void run() {
switch(mode) {
case SLEEP:
runSleep();
break;
case WAIT:
runWait();
break;
case READ:
runRead();
break;
case SOCKET_READ:
runSocketRead();
break;
default:
break;
}
}
static void runSleep() {
try {
Thread.sleep(TIMEOUT);
}
catch(InterruptedException ex) {
System.err.println("InterruptTest.SleeperThread.runSleep(): " + ex);
}
}
static void runWait() {
Object mutex=new Object();
synchronized(mutex) {
try {
mutex.wait();
}
catch(InterruptedException ex) {
System.err.println("InterruptTest.SleeperThread.runWait(): " + ex);
}
}
}
static void runRead() {
try {
System.in.read();
}
catch(Exception ex) {
System.err.println("InterruptTest.SleeperThread.runRead(): " + ex);
}
}
void runSocketRead() {
byte[] buf=new byte[2];
DatagramPacket packet;
try {
sock=new DatagramSocket(12345, InetAddress.getLocalHost());
// System.out.println("** mcast_sock=" + mcast_sock.getLocalAddress() + ":" + mcast_sock.getLocalPort());
packet=new DatagramPacket(buf, buf.length);
//System.out.println("** receive(): start");
sock.receive(packet);
//System.out.println("** receive(): done");
}
catch(Exception e) {
//System.out.println("** receive(): done, exception=" + e);
System.err.println(e);
}
}
}
}
|
