NAME

Mojo::IOLoop::Trigger - IOLoop trigger

SYNOPSIS

  use Mojo::IOLoop::Trigger;

  # Synchronize multiple events
  my $t = Mojo::IOLoop::Trigger->new;
  $t->on(finish => sub { say 'BOOM!' });
  for my $i (1 .. 10) {
    $t->begin;
    Mojo::IOLoop->timer($i => sub {
      say 10 - $i;
      $t->end;
    });
  }

  # Stop automatically when finished
  $t->start;

DESCRIPTION

Mojo::IOLoop::Trigger is a remote control for Mojo::IOLoop. Note that this module is EXPERIMENTAL and might change without warning!

EVENTS

Mojo::IOLoop::Trigger can emit the following events.

finish

  $trigger->on(finish => sub {
    my $trigger = shift;
  });

Emitted once the active event counter reaches zero.

ATTRIBUTES

Mojo::IOLoop::Trigger implements the following attributes.

ioloop

  my $ioloop = $t->ioloop;
  $t         = $t->ioloop(Mojo::IOLoop->new);

Loop object to control, defaults to a Mojo::IOLoop object.

METHODS

Mojo::IOLoop::Trigger inherits all methods from Mojo::EventEmitter and implements the following new ones.

begin

  my $cb = $t->begin;

Increment active event counter, the returned callback can be used instead of end.

  my $t = Mojo::IOLoop->trigger;
  Mojo::IOLoop->resolver->lookup('mojolicio.us' => $t->begin);
  my $address = $t->start;

end

  $t->end;
  $t->end(@args);

Decrement active event counter.

start

  my @args = $t->start;

Start ioloop and register finish event that stops it again once the active event counter reaches zero.

SEE ALSO

Mojolicious, Mojolicious::Guides, http://mojolicio.us.