NAME
Mojo::IOLoop::EventEmitter - IOLoop Event Emitter
SYNOPSIS
use Mojo::IOLoop::EventEmitter;
# Create new event emitter
my $e = Mojo::IOLoop::EventEmitter->new;
# Subscribe to events
$e->on(error => sub {
my ($self, $error) = @_;
warn $error;
});
$e->on(test => sub {
my ($self, $message) = @_;
die "test: $message\n";
});
# Emit events
$e->emit(test => 'Hello!');DESCRIPTION
Mojo::IOLoop::EventEmitter is the event emitter used by Mojo::IOLoop. Note that this module is EXPERIMENTAL and might change without warning!
METHODS
Mojo::IOLoop::EventEmitter inherits all methods from Mojo::Base and implements the following new ones.
emit
$e->emit('foo');
$e->emit('foo', 123);Emit event.
on
my $cb = $e->on(foo => sub {...});Subscribe to event.
once
my $cb = $e->once(foo => sub {...});Subscribe to event and unsubscribe again after it has been emitted once.
subscribers
my $subscribers = $e->subscribers('foo');All subscribers for event.
unsubscribe
$e->unsubscribe(foo => $cb);Unsubscribe from event.
DEBUGGING
You can set the MOJO_EVENTEMITTER_DEBUG environment variable to get some advanced diagnostics information printed to STDERR.
MOJO_EVENTEMITTER_DEBUG=1