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Message-ID: <3BCC7DD6.4079CDC3@cybershop.ca>
Date: Tue, 16 Oct 2001 14:35:02 -0400
From: Bo Xu <bo@cybershop.ca>
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To: tomcat-user@jakarta.apache.org
Subject: Re: Active servlet threads?
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"prs05@prosa.com" wrote:

> Hi!
>   I'd like to know the number of currently active threads of a servlet from within that very servlet... I don't know if I've explained well: I'd like to make a method that counts the active threads, to know in a certain moment how many "servlet copies" are running. I'll use this da<tum to determine if there aren't anyone, and so I can stop the service (or do anything else) without anyone complaining and without any delay in waiting the other threads to finish.
>   Is it possible? I tried with Thread.CurrentThread().getThreadGroup().activeCount(), but it gives me 32, that I guess is the number of the pooled threads, of all the servlet, not only this very one...
>   may you help me? Thanks!
>    Germano

the following is as a refrence :-)


public class MyServlet extends HttpServlet{
    private static byte[] locker=new byte[0];
    private static int counter;

    public void service(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException{
          synchronized(locker){
              counter++;
         }
    }
}