A computer is a state machine. Threads are for people who can't program state machines. -- Alan Cox

I'm assuming this is the Alan Cox in question ? I suppose its all well and good for someone who hacks OS kernels for fun and profit to make such statements. However, as someone who has also hacked kernels (including of the realtime, SMP kind) for fun and profit, I'd adjust Mssr. Cox's assertion a bit:

Threads are for people who can't have better things to do than program state machines.

However, if Thread::Apartment is as capable as current testing indicates, then I'll agree with your assertion that "there's no good reason for lib authors to make their libs thread-safe". Because they won't have to, assuming they're reasonably OO Perl. Just pop them into an apartment thread, and call the methods and/or invoke its closures as needed.

Yes I realize there are issues apartment threading can't solve. But I've managed to get some threads-hostile DBI drivers to behave, and hope to have Tk working soon, which indicates many otherwise threads hostile modules should be supportable.

In reply to Re^2: threads: spawn early to avoid the crush. by renodino
in thread threads: spawn early to avoid the crush. by BrowserUk

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.