IO::Async::Loop::Poll - use IO::Async with poll(2)
IO::Async::Loop::Poll
IO::Async
poll(2)
use IO::Async::Loop::Poll; my $loop = IO::Async::Loop::Poll->new(); $loop->add( ... ); $loop->loop_forever();
Or
while(1) { $loop->loop_once(); ... }
use IO::Poll; use IO::Async::Loop::Poll; my $poll = IO::Poll->new(); my $loop = IO::Async::Loop::Poll->new( poll => $poll ); $loop->add( ... ); while(1) { my $timeout = ... my $ret = $poll->poll( $timeout ); $loop->post_poll(); }
This subclass of IO::Async::Loop uses an IO::Poll object to perform read-ready and write-ready tests.
IO::Async::Loop
IO::Poll
To integrate with existing code that uses an IO::Poll, a post_poll() can be called immediately after the poll() method on the contained IO::Poll object. The appropriate mask bits are maintained on the IO::Poll object when notifiers are added or removed from the set, or when they change their want_writeready status. The post_poll() method inspects the result bits and invokes the on_read_ready() or on_write_ready() methods on the notifiers.
post_poll()
poll()
want_writeready
on_read_ready()
on_write_ready()
This function returns a new instance of a IO::Async::Loop::Poll object. It takes the following named arguments:
poll
The IO::Poll object to use for notification. Optional; if a value is not given, a new IO::Poll object will be constructed.
This method checks the returned event list from a IO::Poll::poll() call, and calls any of the notification methods or callbacks that are appropriate. It returns the total number of callbacks that were invoked; that is, the total number of on_read_ready and on_write_ready callbacks for watch_io, and enqueue_timer event callbacks.
IO::Poll::poll()
on_read_ready
on_write_ready
watch_io
enqueue_timer
Reference to the IO::Poll object
This method calls the poll() method on the stored IO::Poll object, passing in the value of $timeout, and then runs the post_poll() method on itself. It returns the total number of callbacks invoked by the post_poll() method, or undef if the underlying poll() method returned an error.
$timeout
undef
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.