On Nov 21, 2006, at 21:18, Mark Swayne wrote:

>  Is it possible to flush the contents of a POE::Wheel::FollowTail  
>  wheel?
> 
>  I am using one to monitor a file that is left with a non '\n'  
>  terminated line at when the process that creates it is finished.
> 
>  What I'd like to be able to do before closing is somthing like:
> 
>  sub finish_file {
>    my $heap = $_[HEAP];
>    $heap->{wheel}->flush;  # this should generate an InputEvent with  
>  any dangling bits left in the buffer.
> 
>    # do other stuff here
>  }

If Wheel::FollowTail had a set_filter() method, you could use it to  
switch to POE::Filter::Stream.  That would get you a final InputEvent  
with whatever remained in the buffer.  On your end, the code would be:

sub finish_file {
   my $heap = $_[HEAP];
   $heap-> {wheel}->set_filter( POE::Filter::Stream->new() );
   # ...
}

I've attached an untested patch for set_filter().  Let me know if it  
works, and I'll commit it.

-- 
Rocco Caputo - rcaputo@pobox.com