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Thread: Stop a thread?

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    Default Stop a thread?

    Hey guys. So, I have yet to truly know how to properly stop a thread. Thus, I have an example and I am wondering if I am stopping the thread the correct way. I would also like to know, can you call .start on a stopped thread to restart it?
    Heres the example:
    package com.sci;
     
    import com.sci.rpi.api.RaspberryPi;
     
    public class RPI implements Runnable
    {
    	private Thread thread;
    	private boolean running;
     
    	public RPI()
    	{
                    thread = new Thread(this);
    	}
     
    	public void onStartup() throws Exception
    	{
    		running = true;
    		thread.start();
    	}
     
    	public void onShutdown() throws Exception
    	{
    		running = false;
    		thread.join();
    	}
     
    	@Override
    	public void run()
    	{
    		while(running)
    		{
    			//do things that are fun and useful 
    		}
    	}
    }


  2. #2
    Member angstrem's Avatar
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    Default Re: Stop a thread?

    You can "stop" thread by calling Thread.interrupt. Also, if you do want such a functionality, your while loop should look like while(!Thread.isInterrupted()). Or you should perform such check-ups in some other place regularly. And you cannot restart thread that was interrupted. Consider using Runnable if you want to start a similar thread in future.

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