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bin/anyevent-mqtt-monitor  view on Meta::CPAN

my $man;
my $verbose = 0;
my $retain = 1;
my $history_size = 20;
my $host = '127.0.0.1';
my $port = 1883;
my $qos = MQTT_QOS_AT_MOST_ONCE;
my $keep_alive_timer = 120;
GetOptions('help|?' => \$help,
           'man' => \$man,
           'verbose+' => \$verbose,
           'retain!' => \$retain,
           'history-size=i' => \$history_size,
           'host=s' => \$host,
           'port=i' => \$port,
           'qos=i' => \$qos,
           'keepalive=i' => \$keep_alive_timer) or pod2usage(2);
pod2usage(1) if ($help);
pod2usage(-exitstatus => 0, -verbose => 2) if $man;

my $mqtt =
  AnyEvent::MQTT->new(host => $host, port => $port,
                      keep_alive_timer => $keep_alive_timer,
                      on_error => sub {
                        my ($fatal, $message) = @_;
                        if ($fatal) {
                          die $message, "\n";
                        } else {
                          warn $message, "\n";
                        }
                      });

foreach my $topic (scalar @ARGV ? @ARGV : '#') {
  $mqtt->subscribe(topic => $topic, callback => \&log, qos => $qos);
}

my %d;
my $win = Gtk2::Window->new('toplevel');
$win->set_title('MQTT Monitor');
$win->set_default_size(400, 400);
my $vbox = Gtk2::VBox->new(0,0);
$win->add($vbox);
my $slist = Gtk2::SimpleList->new('Topic' => 'text',
                                  'Message' => 'text',
                                  'Time' => 'text');
$slist->signal_connect(button_press_event => \&button_press);
$slist->set_rules_hint(1);
$slist->get_selection->set_mode('single');
$slist->get_selection->unselect_all;

@{$slist->{data}} = ();
my $scrolled = Gtk2::ScrolledWindow->new;
$scrolled->set_policy('automatic', 'automatic');
$scrolled->add($slist);
$vbox->add($scrolled);
foreach (['Quit' => sub { Gtk2->main_quit }]) {
  my $button = Gtk2::Button->new($_->[0]);
  $button->signal_connect(clicked => $_->[1]);
  $vbox->pack_start($button, 0, 0, 0);
}
my $menu = Gtk2::Menu->new();
$menu->set_name('client menu');
my $tearoff = Gtk2::TearoffMenuItem->new();
$menu->append($tearoff);
$tearoff->show;
foreach (['History' => \&history_callback]) {
  my ($title, $cb) = @$_;
  my $item = Gtk2::MenuItem->new($title);
  $item->signal_connect('activate', $cb);
  $menu->append($item);
  $item->show;
}
$win->show_all;

my $dialog = Gtk2::Window->new();
$dialog->signal_connect("destroy", sub { $dialog->hide(); 1; });
$dialog->set_role('dialog');
$dialog->realize();
my $hist_list = Gtk2::SimpleList->new('Time' => 'text',
                                      'Summary' => 'text');
$hist_list->set_rules_hint(1);
$hist_list->signal_connect(button_press_event => \&hist_button_press);
my $dialog_vbox = Gtk2::VBox->new(0,0);
$dialog->add($dialog_vbox);
$dialog_vbox->add($hist_list);
my $hide_button = Gtk2::Button->new('Hide');
$hide_button->signal_connect(clicked => sub { $dialog->hide(); 1; });
$dialog_vbox->add($hide_button);

my $hist_menu = Gtk2::Menu->new();
$hist_menu->set_name('hist menu');
my $hist_tearoff = Gtk2::TearoffMenuItem->new();
$hist_menu->append($hist_tearoff);
$hist_tearoff->show;
foreach (['Dump' => \&dump_callback]) {
  my ($title, $cb) = @$_;
  my $item = Gtk2::MenuItem->new($title);
  $item->signal_connect('activate', $cb);
  $hist_menu->append($item);
  $item->show;
}

Gtk2->main;

sub log {
  my ($topic, $message, $obj) = @_;
  return unless ($retain || !$obj->retain); # skip retained messages
  my $t = time;
  $d{src}->{$topic} = {} unless (exists $d{src}->{$topic});
  my $r = $d{src}->{$topic};
  unshift @{$r->{hist}}, [$obj, $t];
  if (scalar @{$r->{hist}} > $history_size) {
    pop @{$r->{hist}};
  }
  $r->{last} = $obj;
  $r->{last_time} = $t;
  $r->{last_time_str} = strftime($timefmt, localtime($t));
  $r->{last_summary} = $message;
  add_to_list($topic);
}

sub add_to_list {
  my ($src) = @_;
  my @row = $src;
  foreach (qw/last_summary last_time_str/) {
    push @row, $d{src}->{$src}->{$_};
  }
  insert($slist->{data}, \@row);
  $d{src}->{$src}->{row} = \@row;
  return 1;
}


sub insert {
  my ($list, $row, $key, $first, $last) = @_;
  $key = $row->[0] unless (defined $key);
  $first = 0 unless (defined $first);
  $last = (scalar @$list) - 1 unless (defined $last);
#  print STDERR "insert: $first $last $key\n";
  if ($last == -1) {
#    print "inserting in empty list\n";
    push @$list, $row;
    return;
  }
  my $first_key = $list->[$first]->[0];
  my $last_key = $list->[$last]->[0];
  if ($first_key eq $key) {
#    print "overwriting at ", $first, " c\n";
    $list->[$first] = $row;
    return;
  }
  if ($first_key gt $key) {
#    print "inserting at ", $first, " c\n";
    splice @$list, $first, 0, $row;
    return;
  }
  if ($key eq $last_key) {