Wx::Thread

[Octavian Rasnita]

Hi,

I've found the following in Wx::Thread:
     use threads;
     use threads::shared;
     use Wx;

     my $DONE_EVENT : shared = Wx::NewEventType;

     my $worker = threads->create( \&work );

     # create frames, etc
     my $frame = Wx::Frame->new( ... );
     EVT_COMMAND( $frame, -1, $DONE_EVENT, \&done );
     $app->MainLoop;

     sub done {
         my( $frame, $event ) = @_;
         print $event->GetData;
     }

     sub work {
         # ... do stuff, create a shared $result value

         my $threvent = new Wx::PlThreadEvent( -1, $DONE_EVENT, $result );
         Wx::PostEvent( $frame, $threvent );
     }

__END__

Well, I've seen that the worker thread is created here before creating the 
frames, and I also read in perldoc perlthrtut that this is recommended, 
because the threads will be smaller this way.

But in the line
         Wx::PostEvent( $frame, $threvent );

I've seen that I need to access $frame, so... shouldn't it be created before 
the thread that could access it?
In this case I think
     my $worker = threads->create( \&work );
should be put after the line where the frame is created.

I ask this, because I've seen that my program occupies more than 160 MB of 
RAM when it uses 4 threads, and only 46 MB of RAM when I use a single thread 
and I am trying to make it occupy less.
If I create the threads before creating the frame, the program prints an 
error telling that $frame is undefined (but the occupied memory is still 160 
MB).

So, does it really matter if I create the threads before creating the GUI or 
after?

Thanks.

Octavian