error¶

  $reactor->on(error => sub ($reactor, $err) {...});

Emitted for exceptions caught in callbacks, fatal if unhandled. Note that if this event is unhandled or fails it might kill your program, so you need to be careful.

  $reactor->on(error => sub ($reactor, $err) { say "Something very bad happened: $err" });

again¶

  $reactor->again($id);
  $reactor->again($id, 0.5);

Restart timer and optionally change the invocation time. Meant to be overloaded in a subclass. Note that this method requires an active timer.

detect¶

  my $class = Mojo::Reactor->detect;

Detect and load the best reactor implementation available, will try the value of the "MOJO_REACTOR" environment variable, Mojo::Reactor::EV or Mojo::Reactor::Poll.

  # Instantiate best reactor implementation available
  my $reactor = Mojo::Reactor->detect->new;

io¶

  $reactor = $reactor->io($handle => sub {...});

Watch handle for I/O events, invoking the callback whenever handle becomes readable or writable. Meant to be overloaded in a subclass.

  # Callback will be executed twice if handle becomes readable and writable
  $reactor->io($handle => sub ($reactor, $writable) {
    say $writable ? 'Handle is writable' : 'Handle is readable';
  });

is_running¶

  my $bool = $reactor->is_running;

Check if reactor is running. Meant to be overloaded in a subclass.

next_tick¶

  my $undef = $reactor->next_tick(sub {...});

Execute callback as soon as possible, but not before returning or other callbacks that have been registered with this method, always returns "undef". Meant to be overloaded in a subclass.

one_tick¶

  $reactor->one_tick;

Run reactor until an event occurs. Note that this method can recurse back into the reactor, so you need to be careful. Meant to be overloaded in a subclass.

  # Don't block longer than 0.5 seconds
  my $id = $reactor->timer(0.5 => sub {});
  $reactor->one_tick;
  $reactor->remove($id);

recurring¶

  my $id = $reactor->recurring(0.25 => sub {...});

Create a new recurring timer, invoking the callback repeatedly after a given amount of time in seconds. Meant to be overloaded in a subclass.

remove¶

  my $bool = $reactor->remove($handle);
  my $bool = $reactor->remove($id);

Remove handle or timer. Meant to be overloaded in a subclass.

reset¶

  $reactor->reset;

Remove all handles and timers. Meant to be overloaded in a subclass.

start¶

  $reactor->start;

Start watching for I/O and timer events, this will block until "stop" is called. Note that some reactors stop automatically if there are no events being watched anymore. Meant to be overloaded in a subclass.

  # Start reactor only if it is not running already
  $reactor->start unless $reactor->is_running;

stop¶

  $reactor->stop;

Stop watching for I/O and timer events. Meant to be overloaded in a subclass.

timer¶

  my $id = $reactor->timer(0.5 => sub {...});

Create a new timer, invoking the callback after a given amount of time in seconds. Meant to be overloaded in a subclass.

watch¶

  $reactor = $reactor->watch($handle, $readable, $writable);

Change I/O events to watch handle for with true and false values. Meant to be overloaded in a subclass. Note that this method requires an active I/O watcher.

  # Watch only for readable events
  $reactor->watch($handle, 1, 0);
  # Watch only for writable events
  $reactor->watch($handle, 0, 1);
  # Watch for readable and writable events
  $reactor->watch($handle, 1, 1);
  # Pause watching for events
  $reactor->watch($handle, 0, 0);