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Man Pages


Manual Reference Pages  -  MOJO::REACTOR::EV (3)

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NAME

Mojo::Reactor::EV - Low-level event reactor with libev support

CONTENTS

SYNOPSIS



  use Mojo::Reactor::EV;

  # Watch if handle becomes readable or writable
  my $reactor = Mojo::Reactor::EV->new;
  $reactor->io($first => sub {
    my ($reactor, $writable) = @_;
    say $writable ? First handle is writable : First handle is readable;
  });

  # Change to watching only if handle becomes writable
  $reactor->watch($first, 0, 1);

  # Turn file descriptor into handle and watch if it becomes readable
  my $second = IO::Handle->new_from_fd($fd, r);
  $reactor->io($second => sub {
    my ($reactor, $writable) = @_;
    say $writable ? Second handle is writable : Second handle is readable;
  })->watch($second, 1, 0);

  # Add a timer
  $reactor->timer(15 => sub {
    my $reactor = shift;
    $reactor->remove($first);
    $reactor->remove($second);
    say Timeout!;
  });

  # Start reactor if necessary
  $reactor->start unless $reactor->is_running;



DESCRIPTION

Mojo::Reactor::EV is a low-level event reactor based on EV (4.0+).

EVENTS

Mojo::Reactor::EV inherits all events from Mojo::Reactor::Poll.

METHODS

Mojo::Reactor::EV inherits all methods from Mojo::Reactor::Poll and implements the following new ones.

    again



  $reactor->again($id);



Restart timer. Note that this method requires an active timer.

    is_running



  my $bool = $reactor->is_running;



Check if reactor is running.

    new



  my $reactor = Mojo::Reactor::EV->new;



Construct a new Mojo::Reactor::EV object.

    one_tick



  $reactor->one_tick;



Run reactor until an event occurs or no events are being watched anymore. Note that this method can recurse back into the reactor, so you need to be careful.



  # Dont 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.

    start



  $reactor->start;



Start watching for I/O and timer events, this will block until stop is called or no events are being watched anymore.



  # 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.

    timer



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



Create a new timer, invoking the callback after a given amount of time in seconds.

    watch



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



Change I/O events to watch handle for with true and false values. 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);



SEE ALSO

Mojolicious, Mojolicious::Guides, <http://mojolicious.org>.
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perl v5.20.3 MOJO::REACTOR::EV (3) 2016-03-15

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