Perl 5.8 Redhat Linux I need a forked function that more or less is an infinite heartbeat to unconditionaly terminate if parent dies. If parent is hard killed (-9) child does not terminate, Code example below. 
#!/usr/bin/perl

#heart beat funtion, infinite

sub beat() {
    print "IM THE CHILD\n";
    while(1) {
        print "Beat $i\n";
        sleep 2;
    }
    exit(0);
}


#put heartbeat in background so whatever app is doing doesnt effect th
+is.

my $cpid = fork();

if ($cpid == 0) {
    &beat();
}


## parent stuff here ..... 

print "IM THE PARENT\n";

sleep 10;

print "Bye\n";

#I can kill the child directly but if parent is killed child still run
+s. Need child to exit when parent exits.

kill TERM, $cpid;

exit(0);

[download]

In reply to Deamon: Need Child to exit if parent dies by aennen

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.