edu.pdx.cs.joy.net.InterruptingThread Maven / Gradle / Ivy
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package edu.pdx.cs.joy.net;
/**
* This program starts up a bunch of {@link WorkingThread}s and also
* starts an InterruptingThread that will interrupt each
* WorkingThread after a given number of seconds.
*/
public class InterruptingThread extends Thread {
/** The group of threads to interrupt */
private ThreadGroup group;
/** The number of milliseconds to wait before interrupting */
private int sleep;
public InterruptingThread(String name) {
super(name);
}
public void run() {
System.out.println(this + " sleeping for " + this.sleep + " ms");
try {
Thread.sleep(this.sleep);
} catch (InterruptedException ex) {
System.err.println("WHY?");
System.exit(1);
}
System.out.println(this + " interrupting workers");
this.group.interrupt();
}
public static void main(String[] args) {
int sleep = Integer.parseInt(args[0]) * 1000;
ThreadGroup group = new ThreadGroup("Worker threads");
for (int i = 0; i < 5; i++) {
Thread thread = new WorkingThread(group, "Worker " + i);
thread.start();
}
InterruptingThread interrupting =
new InterruptingThread("interrupter");
interrupting.group = group;
interrupting.sleep = sleep;
interrupting.start();
}
}