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example/lava_lamp.pl  view on Meta::CPAN

    flock($status_fh,2);
    return $status;
}


sub store_status {
    my $status = shift;
    
    # Truncate history if necessary
    truncate_hist($status);
    # Store status and unlock
    seek($status_fh, 0, 0); truncate($status_fh, 0);
    store_fd $status,$status_fh;
    close $status_fh;    
}

sub truncate_hist {
    my $status = shift;

    my $hist = $status->{hist};
    my $len = scalar(@$hist);
    splice @$hist,0,$len - $MAX_HISTORY_ENTRIES if $len > $MAX_HISTORY_ENTRIES;
    $status->{hist} = $hist;
}

# ==========================================================================
# Customize the following call and class in order to use a different 
# switch than AVM AHA's
sub open_lamp {
    my $config = shift;
    my $name = shift || $config->{id};
    return new Lamp($name,
                    $config->{host},
                    $config->{password},
                    $config->{user});
}

sub close_lamp {
    my $lamp = shift;
    $lamp->logout();
}

package Lamp;

use AHA;

sub new { 
    my $class = shift;
    my $name = shift;
    my $host = shift;
    my $password = shift;
    my $user = shift;

    my $aha = new AHA($host,$password,$user);
    my $switch = new AHA::Switch($aha,$name);
    
    my $self = {
                aha => $aha,
                switch => $switch
               };
    return bless $self,$class;
}

sub is_on {
    shift->{switch}->is_on();
}

sub on { 
    shift->{switch}->on();
}

sub off { 
    shift->{switch}->off();
}

sub logout {
    shift->{aha}->logout();
}

=head1 LICENSE

lava_lampl.pl is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.

lava_lamp.pl is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with lava_lamp.pl.  If not, see <http://www.gnu.org/licenses/>.

=head1 AUTHOR

roland@cpan.org

=cut