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
|
/*
Derby - Class org.apache.derbyTesting.system.nstest.TimerThread
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.derbyTesting.system.nstest;
/**
* <p>
* A thread which sleeps for a specified time period, then wakes up
* and terminates the VM.
* </p>
*/
public class TimerThread extends Thread
{
///////////////////////////////////////////////////////////////////////////////////
//
// CONSTANTS
//
///////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////
//
// STATE
//
///////////////////////////////////////////////////////////////////////////////////
private long _sleepTime;
private boolean _continueRunning = true;
///////////////////////////////////////////////////////////////////////////////////
//
// CONSTRUCTOR
//
///////////////////////////////////////////////////////////////////////////////////
public TimerThread( long sleepTime )
{
_sleepTime = sleepTime;
}
///////////////////////////////////////////////////////////////////////////////////
//
// Thread BEHAVIOR
//
///////////////////////////////////////////////////////////////////////////////////
/*
* Implementation of run() method to sleep, wake up, and kill the program.
*
*/
public void run() {
long remainingTime = _sleepTime;
while ( _continueRunning )
{
long cycleStartTime = System.currentTimeMillis();
try {
if ( remainingTime > 0L )
{
NsTest.logger.println( "TimerThread sleeping for " + remainingTime + " milliseconds." );
sleep( remainingTime );
}
//
// End the program. This will fire the shutdown hook which
// prints the final statistics.
//
NsTest.logger.println( "TimerThread attempting to shut down the program." );
NsTest.printStatistics();
Runtime.getRuntime().halt( 0 );
} catch (java.lang.InterruptedException ie)
{
NsTest.printException( TimerThread.class.getName(), ie );
}
long elapsedTime = System.currentTimeMillis() - cycleStartTime;
remainingTime = remainingTime - elapsedTime;
}
}
///////////////////////////////////////////////////////////////////////////////////
//
// OTHER BEHAVIOR
//
///////////////////////////////////////////////////////////////////////////////////
/** This method marks the thread for rundown */
public void stopNow() { _continueRunning = false; }
}
|
