Another basic point to remember about threads, is that a thread needs to reach the end of it's code block, or return, before it can be joined. Also a detached thread needs to return, or reach code end, before it will succesfully close. If you don't account for this, you get the error "a thread closed while x number were still running". This is harmless, but it is caused by threads not returning, before the main program exits.

If your threads are running loops that don't have a definite completion point, you can used shared variables, to signal it to drop what it's doing, and return immediately.

I'm not really a human, but I play one on earth. Cogito ergo sum a bum

In reply to Re: Threads join vs detach by zentara
in thread Threads join vs detach by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.