Mojo::Reactor::EV(3pm) - Man pages

Mojo::Reactor::EV(3pm)User Contributed Perl DocumentatioMojo::Reactor::EV(3pm)

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

SYNOPSIS
         use Mojo::Reactor::EV;

         # Watch if handle becomes readable or writable
         my $reactor = Mojo::Reactor::EV->new;
         $reactor->io($first => sub ($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 ($reactor, $writable) {
           say $writable ? 'Second handle is writable' : 'Second handle is readable';
         })->watch($second, 1, 0);

         # Add a timer
         $reactor->timer(15 => sub ($reactor) {
           $reactor->remove($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 (4.32+).

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

       Restart timer and optionally change the invocation time. Note that this
       method requires an active timer.

   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.

         # 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.

   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, <https://mojolicious.org>.

perl v5.36.0                      2022-12-22            Mojo::Reactor::EV(3pm)

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