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terminating a thread

Posted on 2003-12-11
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Last Modified: 2010-03-31
Hi, I have a server that spawns a thread for each incoming socket connection and I want to terminate the thread when the connection is removed since I no longer need the thread and want to free some cpu usage.   The Java api has destroy() method but it does not do the clean up.   Can someone tell me a good way of doing this?   Thanks.
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Question by:skyblue01
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by:CEHJ
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If the thread has run, used its own resources, is not holding references to other resources and has no references to it, it will be garbage collected at some point, so you don't need to do anything
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by:objects
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A thread terminates when it run() method finishes, so you need to implement a method to cause this to happen.
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objects earned 125 total points
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Something like:

public void stop()
{
   ServerSocket server = Server;
   Server = null;
   server.close();
}


public void run()
{
    while (Server!=null)
    {
       ...
    }
}
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by:skyblue01
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objects, from what you have above, you close the ServerSocket.   When the connection is removed, I do:

Socket s = sc.socket(); // sc is ServerSocket
s.close();

Can it be either way or do you have to close the ServerSocket instead of Socket?  
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by:objects
Comment Utility
You want to close the server socket as you no longer want to accept connections (if my understanding is correct).
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by:skyblue01
Comment Utility
Oh, the ServerSocket is used to accept all incoming connections, and I just want to terminate a thread that is spawned for one incoming connection.   Since I still want to be accepting additional socket conenctions... so I guess I want to close the Socket in that case.   Anyways, I'll do what you suggested.   Thanks!
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Expert Comment

by:objects
Comment Utility
Yes just close the socket then :-)

http://www.objects.com.au/staff/mick
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