IO::Async::Timer::Periodic - event callback at regular intervals
IO::Async::Timer::Periodic
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;
This module provides a subclass of IO::Async::Timer for implementing repeating events at regular intervals. The object invokes its callback 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.
Timer
This object may be used in one of two ways; with a callback function, or as a base class.
If the on_tick key is supplied to the constructor, it should contain a CODE reference to a callback function to be invoked at the appropriate time:
on_tick
$on_tick->( $self )
If a subclass is built, then it can override the on_tick method.
$self->on_tick()
The following named parameters may be passed to new or configure:
new
configure
CODE reference to callback to invoke each interval. If not supplied, the subclass method will be called instead.
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.
Loop
start
Paul Evans <leonerd@leonerd.org.uk>
To install IO::Async, copy and paste the appropriate command in to your terminal.
cpanm
cpanm IO::Async
CPAN shell
perl -MCPAN -e shell install IO::Async
For more information on module installation, please visit the detailed CPAN module installation guide.