In the child process you:
sleep 1 until getppid == 1;
which will loop until the child processes parent is pid 1 which will happen after the parent terminates. Then in the parent you:
wait;
which will wait for the child to terminate. So you have the child waiting for the parent to terminate and the parent waiting for the child to terminate thus they are both stuck. Normally when you fork you don't wait for your parent to be init so i would get rid of the sleep until line, also the example you provided might just as well be written without a fork since the parent does nothing other than wait for the child to finish its job the parent could just as well have done that job instead.

In reply to Re: Proper Forking by nardo
in thread Proper Forking by P0w3rK!d

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.