There are API's at the OS level that allow software interupts (Win32 equiv. of signals) between threads. Specifically, the native API QueueUserAPC().

Unfortunately, trying to get this to interoperate with Perls threads layer is frustratingly hard. I've been trying for some time, but the only way I can see to make this work is to patch the perl sources, and that is hard. Harder than I have been able to master.

I actually think your LWP callback method is anything but kludgy, and is probably they way I would approach the problem.

The alternative mught be to dump threads and look at POE. I should say that I know nothing about this, but I've seen merlyn recommend it several times now, so it might be worth your while looking at that.

Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"Think for yourself!" - Abigail
Hooray!

In reply to Re: Re: Perl threads - telling them urgent stuff by BrowserUk
in thread Perl threads - telling them urgent stuff 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.