Mojo::IOLoop::Delay(3pm)				User Contributed Perl Documentation				  Mojo::IOLoop::Delay(3pm)

NAME

       Mojo::IOLoop::Delay - Synchronize events

SYNOPSIS

	 use Mojo::IOLoop::Delay;

	 # Synchronize multiple events
	 my $delay = Mojo::IOLoop::Delay->new;
	 $delay->on(finish => sub { say 'BOOM!' });
	 for my $i (1 .. 10) {
	   $delay->begin;
	   Mojo::IOLoop->timer($i => sub {
	     say 10 - $i;
	     $delay->end;
	   });
	 }

	 # Wait for events if necessary
	 $delay->wait unless Mojo::IOLoop->is_running;

DESCRIPTION

       Mojo::IOLoop::Delay synchronizes events for Mojo::IOLoop.

EVENTS

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

   "finish"
	 $delay->on(finish => sub {
	   my $delay = shift;
	   ...
	 });

       Emitted safely once the active event counter reaches zero.

ATTRIBUTES

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

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

       Loop object to control, defaults to the global Mojo::IOLoop singleton.

METHODS

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

   "begin"
	 my $cb = $delay->begin;

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

	 my $delay = Mojo::IOLoop->delay;
	 Mojo::UserAgent->new->get('mojolicio.us' => $delay->begin);
	 my $tx = $delay->wait;

   "end"
	 $delay->end;
	 $delay->end(@args);

       Decrement active event counter.

   "wait"
	 my @args = $delay->wait;

       Start "ioloop" and stop it again once the "finish" event gets emitted, only works when "ioloop" is not running already.

	 # Use the "finish" event to synchronize portably
	 $delay->on(finish => sub {
	   my ($delay, @args) = @_;
	   ...
	 });
	 $delay->wait unless $delay->ioloop->is_running;

SEE ALSO

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

perl v5.14.2							    2012-09-05						  Mojo::IOLoop::Delay(3pm)