Hi guys,
I trying using the solution showed in above, but I created four MLDBM objects.

    $dataToConnectId   = tie %dataToConnect  ,'MLDBM::Sync', '.shared1
+', O_CREAT|O_RDWR, 0640;
    $dataFromConnectId = tie %dataFromConnect,'MLDBM::Sync', '.shared2
+', O_CREAT|O_RDWR, 0640;
[download]

after this, I created some functions to read this guys:

sub getDataFromConnect
{
return;
    my $line;
   $dataFromConnectId->Lock();
   my $ref = $dataFromConnect{list};
   if (@$ref)
   {
      $line =  shift @$ref;
      $dataFromConnect{list} = $ref;
      print "entrou 5->$line<-\n";
   }
   else
   {
      $line = "";
   }
   $dataFromConnectId->UnLock();
   return $line;
}
sub getDataToConnect
{
   my $line;
   $dataToConnectId->Lock();
   my $ref = $dataToConnect{list};
   if (@$ref)
   {
      $line =  shift @$ref;
      $dataToConnect{list} = $ref;
      printf "entrou 6\n";
   }
   else
   {
      $line = "";
   }
   $dataToConnectId->UnLock();
   return $line;
}
sub setDataToConnect
{
   $dataToConnectId->Lock();
   my $ref = $dataToConnect{list};
   push @$ref, @_[1];
   $dataToConnect{list} = $ref;
   $dataToConnectId->UnLock();
   print "entrou 3\n";
}
sub setDataFromConnect
{
   $dataFromConnectId->Lock();
   my $ref = $dataFromConnect{list};
   push @$ref, @_[1];
   $dataFromConnect{list} = $ref;
   $dataFromConnectId->UnLock();
   print "entrou 4\n";
}
[download]

This functions are used by TWO different proccess. BOTH are running in the same program, but I used the FORK command to create another one.
The problem is that when I write in the array @dataToConnect, the function that should read it, don't read anything and the other function used to read the @dataFromConnect reads this guy! It's very strange!

Please could you take a look what I made wrong?

thanks a Lot!
Joćo