NAME
IO::Async::Timer::Periodic
- event callback at regular intervals
SYNOPSIS
use IO::Async::Timer::Periodic;
use IO::Async::Loop;
my $loop = IO::Async::Loop->new();
my $timer = IO::Async::Timer::Periodic->new(
interval => 60,
on_tick => sub {
print "You've had a minute\n";
},
);
$timer->start;
$loop->add( $timer );
$loop->loop_forever;
DESCRIPTION
This subclass of IO::Async::Timer implements repeating events at regular clock intervals. The timing is not subject to how long it takes the callback to execute, but runs at regular intervals beginning at the time the timer was started, then adding each interval thereafter.
For a Timer
object that only runs a callback once, after a given delay, see instead IO::Async::Timer::Countdown.
EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_tick
Invoked on each interval of the timer.
PARAMETERS
The following named parameters may be passed to new
or configure
:
- on_tick => CODE
-
CODE reference for the
on_tick
event. - interval => NUM
-
The interval in seconds between invocations of the callback or method. Cannot be changed if the timer is running.
Once constructed, the timer object will need to be added to the Loop
before it will work. It will also need to be started by the start
method.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>