Re: How to check if a thread is alive?

On Tue, 18 Nov 2003, EastInspection USA wrote:

> It seems to me it is a bug in ithread. If a thread dies, then
> ithread->list() should not list it as an alive thread.

This is a documentation ambiguity, not a bug in ithreads.  :-)  Some of the
threads documentation is drawn from previous implementations, and is a little
dusty here and there.  The L<threads> documentation states more precisely that

  threads->list();
      This will return a list of all non joined, non detached threads.
  [http://www.perldoc.com/perl5.8.0/lib/threads.html]

A non-detached thread that has finished its entry point routine, perhaps by
die()ing, is still joinable.  This is somewhat analogous to wait()ing for a
terminated process (at least on POSIXy systems).

So, threads->list lists joinable threads; take a look at Liz's Thread::Running
to find out whether your threads are still in their entry point routines.

Regards,
Mike
-- 
Michael J. Pomraning
[email protected]
http://pilcrow.madison.wi.us