I'm obviously doing something silly but I can't seem to start a daemon with Proc::Daemon :(

Here's the code:

use Proc::Daemon; my $daemon = Proc::Daemon->new( ); my $child_pid = $daemon->Init; if ($child_pid) { # We are the parent - we need to exit so Apache shows what # we just printed to the user warn "Child PID is $child_pid\n" if $DEBUG; exit; } my $status = system @cmd; # send an email after completion instead of updating the page

This code is in a CGI script. I want to start a long-running program (as described by @cmd) and then have the parent CGI exit so Apache displays the 'job started' page that the CGI script has already printed.

When the long-running program finishes, the child daemon needs to check the exit status and send an email to advise the user of the result

What's happening is that the CGI script doesn't get its page printed until the long-running program finishes (or Apache times out the CGI if it really is a long-running program!). I presume I'm missing something blindingly obvious, but I can't see what it is and I need to get this working, so thanks for any ideas


In reply to Proc::Daemon not detaching by Dave Howorth

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.