You're most welcome.

With regard to the "race condition" suggested here. It's a red herring!

The description:

  1. worker thread dequeues last item
  2. main thread checks pending (false)
  3. main thread checks number of busy threads (none)
  4. main thread signals workers to end
  5. worker marks itself busy
  6. worker starts processing last item

    7. fails to consider what happens at this point.

  7. once the worker processing the last item finishes, it loops back to check for another, gets undef, exits the loop and terminates.
  8. and the main thread, waiting on the join, sees it terminate and completes. Clean exit. Job done.

There is simply no need for the over-engineered, overcomplicated solution suggested.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^9: Proper undefine queue with multithreads by BrowserUk
in thread Proper undefine queue with multithreads by sanc

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