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Perl daemon with Threads

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rottmanja

Programmer
Aug 5, 2008
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I have since updated my threading code since my last post. Currently everything works great when I test my code with out trying initialize the code as a daemon.

The issue that I run into when I try to initialize the code with a perl daemon is. The first iteration of the code works perfectly fine. However when the next iteration starts, it fails/stops right after the first thread is created.

Here is the code I am currently testing with. Any help with this is greatly appreciated.

plsMain.pl:
Code:
use Lib::PLSInstance;
use Lib::PLSParse qw(parseMain);
use Lib::Daemon;
use Data::Dumper;
use strict;
use threads;


Lib::Daemon::daemonize();

	my @thr = ();

	while(1){
		main();
		sleep(10);
	}




sub threadMain{
	print "Child Thread $_[0] \n";
	print "********************************************************************************\n";
	parseMain($_[0],$_[1]);
	return 1;
}

sub main{
	my @instData = Lib::PLSInstance::getInstances();
	

	for(my $i = 0; $i < @instData; $i++){
		$thr[$i] = threads->new(\&threadMain, $instData[$i][2],$instData[$i][1] );
	}


	# start rejoining the threads
	for (my $i = 0; $i < @instData; $i++) {
	   print "Joining thread $i\n";
	   $thr[$i]->join();
	   print "\tThread $i joined back with the parent\n";
	}
	
}

Daemon.pm:
Code:
package Lib::Daemon;

	use base qw(Exporter);
	our @EXPORT = qw();

	use POSIX qw(setsid);

	use strict;

	sub daemonize {
	    defined(my $pid = fork) or die "Can't fork: $!";
	    exit if $pid;
	    setsid() or die "Can't start a new session: $!";
	}

1;

 
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