# Proc/PID/File.pm
sub alive {
        my $self = shift;
        my $pid = $self->read();

        print "> Proc::PID::File - pid: $pid"
                if $self->{debug};
        return $pid if $pid && $pid != $$ && kill(0, $pid);

#       $self->write();
        return 0;
        }

# i've commented out the write() because i don't think that testing
# for aliveness should write a pidfile...

sub DESTROY {
        my $self = shift;
        $self->remove() if $self->{path} and $self->{written};
        }

# i've added a written test so i don't remove pidfiles that aren't mine

# add this to the end of write()
        $self->{written} = 1;
# add this to file()
        $self->{written} = 0;

##</code><code>##

die "Already running!" if Proc::PID::File->new()->alive();