use strict;
use threads;
use threads::shared;
use Thread::Semaphore;
use POSIX;

my @clientList = qw(client1 client2 client3 client4 client5 client6 client7 client8 client9 client10 client11 client12); my @dmServers = qw(A B C); my @queryPath = qw(AA BB CC DD EE FF); my @shared; my $queryIndex = 0; my $maxnoofThreads = 2; my %sharedHash : shared;

for (my $i = 0;$i < @dmServers;$i++)
{
        my $cpid = fork();
        die unless defined $cpid;
        if (! $cpid)
            {
                    # This is the child
                    # my $wait = int rand 10;
                    # sleep $wait;
                     callChild($queryPath[$queryIndex++],$dmServers[$i],$i);
                    #print "Child $$ exiting after seconds\n";
                    exit;
            }

}

# Just parent code, after this
while ((my $cpid = wait()) != -1)
     {
             #print "Waited for child $cpid\n";
	     #print " length of array shared",length(@shared);
     }
#print "Parent Exiting\n";
sub callChild
{
	my $query = shift;
	my $dmserver = shift;
        my $i = shift;
        #print " query fired $query on dmserver $dmserver index $i\n";
        my @clientList_temp = @clientList;
        for(my $index = $i; $index < @queryPath;$index = $index + @dmServers)
		{
	          	print "process $$ query at $index is ",$queryPath[$index],"\n";
			# $shared[$i] = $i;
			# sleep rand(10);
  			for(my $a;$a <= $maxnoofThreads;$a++)
				{
					my $sema = Thread::Semaphore->new();
					my @temp = splice(@clientList_temp,0,ceil(@clientList/$maxnoofThreads));
					my $thr = thread->new(\&worker,$sema,\@temp,$queryPath[$index]);
					#if( defined %sharedHash)
					#  {
					#	my $thrnew = thread->new(\&compare);
					#	$sema->up;
					#  }
				}
	        	foreach my $thr (threads->list)
           			{
             				# Don't join the main thread or ourselves
             				if ($thr->tid && !threads::equal($thr, threads->self))
                				{
##########Not Sure #######						foreach my $client (keys %sharedHash)
					  			{
									 print " client $client\n";
									 my $thrnew = thread->new(\&compare,$client);
							  		 $sema->up;
					  			}
                        				$thr->join;
                				}
              			 }

		}
	#$shared[$i] = undef;
}

sub worker
{
	my $sema = shift;
	my $myClientArrayRef = shift;
	my $query = shift;
  	for(my $i;$i < @$myClientArrayRef;$i++)
		{
			print " $$myClientArrayRef[$i] client \n";
			sleep 5;
			my $thrid = threads->tid;
			$sharedHash{$$myClientArrayRef[$i]} = $thrid;
			shift @$myClientArrayRef;
        		$sema->down;
		}
}

sub compare
{
	my $client = shift;
	print " hash value ",$sharedHash{$client},"\n";
}