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);