Hello folks,

I've never used threads in Perl before, but I'm working on a project which is a potential candidate for threading, so I thought I'd give it a try.

My question: How do I fork (safely) in a thread? My intention: to be able to call system() safely, or fork() and exec(), from within a thread

perlthrtut says not (which makes sense due to the userspace nature of perl threads): "Thinking of mixing fork() and threads? Please lie down and wait until the feeling passes"

I'm pondering about the forks module in CPAN, since it appears to create a new fork() for each thread, so fork()ing the thread shouldn't have the same problem as with userspace threads. However, does it have any undesired consequences?

I've tried it, and nothing bad seemed to happen, but that doesn't mean bad things won't happen when my program's 99% complete :-)

Any ideas? - Thanks!


In reply to Using forks and threads by ColinHorne

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.