SPUG: Creating a NON zombie daemon

Thomas Holkenbrink Thomas_Holkenbrink at emeraldsolutions.com
Mon Apr 17 20:01:27 CDT 2000


I have a Java application that will run like a daemon for a Perl program...
but How do I start the daemon up and Only have one PID associated with it?

I have tried like this but I get two process?
<CODE>

$|=1;
print "Starting Server\n";

use POSIX 'setsid';

chdir '/'                 or die "Can't chdir to /: $!";
open STDIN, '/dev/null'   or die "Can't read /dev/null: $!";
open STDOUT, '>/dev/null' or die "Can't write to /dev/null: $!";
defined(my $pid = fork)   or die "Can't fork: $!";
exit if $pid;
setsid                    or die "Can't start a new session: $!";
open STDERR, '>&STDOUT'   or die "Can't dup stdout: $!";

system("java myClass.class");

</CODE>

I would like to be able to something similar in a init script but it wont
work??? any ideas?  It seems to function but nothing ever shows up in a "ps
-ef"

Thomas

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