io::async::protocol::linestream(3pm) [debian man page]

IO::Async::Protocol::LineStream(3pm)			User Contributed Perl Documentation		      IO::Async::Protocol::LineStream(3pm)

NAME

       "IO::Async::Protocol::LineStream" - stream-based protocols using lines of text

SYNOPSIS

       Most likely this class will be subclassed to implement a particular network protocol.

	package Net::Async::HelloWorld;

	use strict;
	use warnings;
	use base qw( IO::Async::Protocol::LineStream );

	sub on_read_line
	{
	   my $self = shift;
	   my ( $line ) = @_;

	   if( $line =~ m/^HELLO (.*)/ ) {
	      my $name = $1;

	      $self->invoke_event( on_hello => $name );
	   }
	}

	sub send_hello
	{
	   my $self = shift;
	   my ( $name ) = @_;

	   $self->write_line( "HELLO $name" );
	}

       This small example elides such details as error handling, which a real protocol implementation would be likely to contain.

DESCRIPTION

EVENTS

       The following events are invoked, either using subclass methods or CODE references in parameters:

   on_read_line $line
       Invoked when a new complete line of input is received.

PARAMETERS

       The following named parameters may be passed to "new" or "configure":

       on_read_line => CODE
	       CODE reference for the "on_read_line" event.

METHODS

   $lineprotocol->write_line( $text )
       Writes a line of text to the transport stream. The text will have the end-of-line marker appended to it; $text should not end with it.

AUTHOR

       Paul Evans <leonerd@leonerd.org.uk>

perl v5.14.2							    2012-10-24				      IO::Async::Protocol::LineStream(3pm)